diff --git a/.gitignore b/.gitignore
index 603b140..949a701 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@
 /captures
 .externalNativeBuild
 .cxx
+gradle.properties
\ No newline at end of file
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index 88ea3aa..3cc336b 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -1,6 +1,22 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
     <JetCodeStyleSettings>
+      <option name="PACKAGES_TO_USE_STAR_IMPORTS">
+        <value>
+          <package name="java.util" alias="false" withSubpackages="false" />
+          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
+          <package name="io.ktor" alias="false" withSubpackages="true" />
+        </value>
+      </option>
+      <option name="PACKAGES_IMPORT_LAYOUT">
+        <value>
+          <package name="" alias="false" withSubpackages="true" />
+          <package name="java" alias="false" withSubpackages="true" />
+          <package name="javax" alias="false" withSubpackages="true" />
+          <package name="kotlin" alias="false" withSubpackages="true" />
+          <package name="" alias="true" withSubpackages="true" />
+        </value>
+      </option>
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
     <codeStyleSettings language="XML">
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index b9f8a5e..ac6b0ae 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 37a7509..7bfef59 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml
new file mode 100644
index 0000000..7f68460
--- /dev/null
+++ b/.idea/runConfigurations.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/sonarlint/issuestore/index.pb b/.idea/sonarlint/issuestore/index.pb
new file mode 100644
index 0000000..0881279
--- /dev/null
+++ b/.idea/sonarlint/issuestore/index.pb
@@ -0,0 +1,86 @@
+
+<
+build.gradle,f\0\f07866736216be0ee2aba49e392191aeae700a35
+@
+app/build.gradle,f\4\f4a01d6a4fcb971362ec00a83903fd3902f52164
+‚

+Rapp/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItem.kt,c\3\c3dcfe9bba808a9f0d669770c977790a7d3660be
+Š

+Zapp/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItemDatabase.kt,2\f\2f41789aa42f413b754f1d33b96bc6f987408859
+�

+Qapp/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDao.kt,5\e\5e1ac39c1ce80ff9f151eaaa21b8f255267b4967
+X
+(app/src/main/res/drawable-v24/ic_add.xml,b\9\b964d991fc1bbbaf61c452ed055cabc8221b02dc
+Z
+*app/src/main/res/drawable-v24/ic_image.xml,c\6\c6212ad307d635d23e721c7286cda4b02c9c1373
+Y
+)app/src/main/res/layout/activity_main.xml,7\6\76b07e40f24cce093536731477540f12e7da3cb6
+f
+6app/src/main/res/layout/fragment_add_shopping_item.xml,2\9\2997a8be7aac2bd03dbe97e035d91a15fed48be2
+_
+/app/src/main/res/layout/fragment_image_pick.xml,4\a\4a0a27a1acb9158d71f57d5afbc1624cebb2c3bf
+V
+&app/src/main/res/layout/item_image.xml,1\7\17058ee8b3e2f7c5f78fa14d929d419145fbe2c9
+Y
+)app/src/main/res/layout/item_shopping.xml,f\4\f4d9f705a02c77dc7dda11cb66bd5c30f5499062
+R
+"app/src/main/res/values/styles.xml,f\7\f79cc2688e29fcbc286fda14ae07b27c9e83690f
+‰

+Yapp/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilAndroidTest.kt,7\1\71be9acdd7a63d9e1558e942a20fd184d83095b1
+L
+.idea/codeStyles/Project.xml,6\e\6ecd6000a7b6f4a2884412ff19f74193ed089648
+Œ

+\app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDaoTest.kt,9\d\9dbd52ee29d981b5fe5b980cec7674b86f7677f1
+@
+local.properties,0\7\0712df971a99ac4d2fccb8e0fb19f377f3374cca
+A
+gradle.properties,2\a\2afbb999f001938c88fa43fc2ef52abf0f8213e4
+z
+Japp/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Constants.kt,7\3\73e4f23ac8696f269319aaa20b16ca999c1bc43c
+Ž

+^app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResponse.kt,b\0\b04a068bb923ddaaceb13ea913d23b3a4dcf9321
+Œ

+\app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResult.kt,2\c\2c3c472efc750187d570a679081308dc9777f9d4
+�

+Qapp/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/PixabayAPI.kt,6\8\684b8e63e9ccb804b682d8c8ee13f6c39a832677
+~
+Napp/src/main/java/com/androiddevs/shoppinglisttestingyt/ShoppingApplication.kt,a\a\aae3a19b854e70a6c94b9f5eca8e1a7ff9f4ce6d
+P
+ app/src/main/AndroidManifest.xml,8\c\8c55c3ccc257e5907959013f99656e4c8ec3903e
+:
+
+.gitignore,a\5\a5cc2925ca8258af241be7e5b0381edf30266302
+w
+Gapp/src/main/java/com/androiddevs/shoppinglisttestingyt/di/AppModule.kt,3\8\380c9e933931159aa08cddf1d18d7e5aa789f301
+y
+Iapp/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Resource.kt,6\9\69b6c589ee1384673d8777f252d188bcfd85eca6
+‘

+aapp/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/DefaultShoppingRepository.kt,1\c\1c105fa1f0acec04f629b4a44f84430b9f1448c3
+Š

+Zapp/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/ShoppingRepository.kt,8\a\8af7a6052a81dde11da68924a69a86644220760a
+Ž

+^app/src/test/java/com/androiddevs/shoppinglisttestingyt/repositories/FakeShoppingRepository.kt,1\9\19da2da72f55d6c8c65a0b236db9fe43b0bee70e
+]
+-app/src/main/res/layout/fragment_shopping.xml,5\6\5673755f8024653ba3bc857667f5f8b8cae6b750
+v
+Fapp/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Event.kt,e\c\ec978d88c2b48a096906b5d3d957aeff1f5bc223
+…

+Uapp/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/AddShoppingItemFragment.kt,a\5\a5fd8f0c612ac102e4a03c14725ea49d89848c9a
+z
+Japp/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/MainActivity.kt,d\1\d1bed8ecb07b82be89a304dbdced50ac6cdd2800
+~
+Napp/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingFragment.kt,8\4\842c5ac7c1885e8b7ddf646a5c496241f030cfd1
+
+Oapp/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModel.kt,f\7\f729d1e416a3abca12a51d32931c680814e8ff86
+
+Oapp/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ImagePickFragment.kt,c\d\cd213cb26608cb1de16d62aef2fbd8e0a5f16720
+{
+Kapp/src/test/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilTest.kt,8\3\831bbb7a142b2683c3b84cbe84fde3ff433155f8
+|
+Lapp/src/test/java/com/androiddevs/shoppinglisttestingyt/MainCoroutineRule.kt,7\8\78383dafe788338c0c3ed92faa34347323b2abe4
+ƒ

+Sapp/src/test/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModelTest.kt,2\9\292e50e44eaf4c13cd15f48e1c54a7793d61c11a
+€

+Papp/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/HiltTestRunner.kt,1\d\1d1263ead624d5f9ff5a5d9b7e4bd684e923918a
+‚

+Rapp/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/di/TestAppModule.kt,4\6\4698ca7af916ee917eb2c3e41e3c4f3c9ae57652
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index b73e1bc..cea2544 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,6 +1,9 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-kapt'
+apply plugin: "androidx.navigation.safeargs.kotlin"
+apply plugin: 'dagger.hilt.android.plugin'
 
 android {
     compileSdkVersion 29
@@ -12,8 +15,9 @@ android {
         targetSdkVersion 29
         versionCode 1
         versionName "1.0"
+        buildConfigField("String", "API_KEY", API_KEY)
 
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "com.androiddevs.shoppinglisttestingyt.HiltTestRunner"
     }
 
     buildTypes {
@@ -22,6 +26,14 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
 }
 
 dependencies {
@@ -30,8 +42,96 @@ dependencies {
     implementation 'androidx.core:core-ktx:1.3.1'
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    testImplementation 'junit:junit:4.12'
+
+    // Material Design
+    implementation 'com.google.android.material:material:1.3.0-alpha02'
+
+    // Architectural Components
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0"
+
+    // Lifecycle
+    implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0"
+    implementation "androidx.lifecycle:lifecycle-runtime:2.2.0"
+    implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.2.0"
+
+    // Room
+    implementation "androidx.room:room-runtime:2.2.5"
+    kapt "androidx.room:room-compiler:2.2.5"
+
+    // Kotlin Extensions and Coroutines support for Room
+    implementation "androidx.room:room-ktx:2.2.5"
+
+    // Retrofit
+    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
+
+    // Coroutines
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.5'
+
+    // Coroutine Lifecycle Scopes
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0"
+    implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.2.0"
+
+    // Navigation Components
+    implementation "androidx.navigation:navigation-fragment-ktx:2.3.0"
+    implementation "androidx.navigation:navigation-ui-ktx:2.3.0"
+
+    // Glide
+    implementation 'com.github.bumptech.glide:glide:4.11.0'
+    kapt 'com.github.bumptech.glide:compiler:4.11.0'
+
+    // Activity KTX for viewModels()
+    implementation "androidx.activity:activity-ktx:1.1.0"
+
+    //Dagger - Hilt
+    implementation "com.google.dagger:hilt-android:2.28-alpha"
+    kapt "com.google.dagger:hilt-android-compiler:2.28-alpha"
+
+    implementation "androidx.hilt:hilt-lifecycle-viewmodel:1.0.0-alpha02"
+    kapt "androidx.hilt:hilt-compiler:1.0.0-alpha02"
+
+    // Timber
+    implementation 'com.jakewharton.timber:timber:4.7.1'
+
+    // Local Unit Tests
+    implementation "androidx.test:core:1.2.0"
+    testImplementation "junit:junit:4.13"
+    testImplementation "org.hamcrest:hamcrest-all:1.3"
+    testImplementation "androidx.arch.core:core-testing:2.1.0"
+    testImplementation "org.robolectric:robolectric:4.3.1"
+    testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.2.1"
+    testImplementation "com.google.truth:truth:1.0.1"
+    testImplementation "org.mockito:mockito-core:2.21.0"
+
+    // Instrumented Unit Tests
+    androidTestImplementation "junit:junit:4.13"
+    androidTestImplementation "com.linkedin.dexmaker:dexmaker-mockito:2.12.1"
+    androidTestImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.2.1"
+    androidTestImplementation "androidx.arch.core:core-testing:2.1.0"
+    androidTestImplementation "com.google.truth:truth:1.0.1"
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    androidTestImplementation "org.mockito:mockito-core:2.21.0"
+    androidTestImplementation 'com.google.dagger:hilt-android-testing:2.28-alpha'
+    kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.28-alpha'
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 
-}
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/HiltTestRunner.kt b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/HiltTestRunner.kt
new file mode 100644
index 0000000..28e6dad
--- /dev/null
+++ b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/HiltTestRunner.kt
@@ -0,0 +1,17 @@
+package com.androiddevs.shoppinglisttestingyt
+
+import android.app.Application
+import android.content.Context
+import androidx.test.runner.AndroidJUnitRunner
+import dagger.hilt.android.testing.HiltTestApplication
+
+class HiltTestRunner : AndroidJUnitRunner() {
+
+    override fun newApplication(
+        cl: ClassLoader?,
+        className: String?,
+        context: Context?
+    ): Application {
+        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
+    }
+}
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilAndroidTest.kt b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilAndroidTest.kt
new file mode 100644
index 0000000..30c267b
--- /dev/null
+++ b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilAndroidTest.kt
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.androiddevs.shoppinglisttestingyt
+
+import androidx.annotation.VisibleForTesting
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.Observer
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.TimeoutException
+
+/**
+ * Gets the value of a [LiveData] or waits for it to have one, with a timeout.
+ *
+ * Use this extension from host-side (JVM) tests. It's recommended to use it alongside
+ * `InstantTaskExecutorRule` or a similar mechanism to execute tasks synchronously.
+ */
+@VisibleForTesting(otherwise = VisibleForTesting.NONE)
+fun <T> LiveData<T>.getOrAwaitValue(
+    time: Long = 2,
+    timeUnit: TimeUnit = TimeUnit.SECONDS,
+    afterObserve: () -> Unit = {}
+): T {
+    var data: T? = null
+    val latch = CountDownLatch(1)
+    val observer = object : Observer<T> {
+        override fun onChanged(o: T?) {
+            data = o
+            latch.countDown()
+            this@getOrAwaitValue.removeObserver(this)
+        }
+    }
+    this.observeForever(observer)
+
+    try {
+        afterObserve.invoke()
+
+        // Don't wait indefinitely if the LiveData is not set.
+        if (!latch.await(time, timeUnit)) {
+            throw TimeoutException("LiveData value was never set.")
+        }
+
+    } finally {
+        this.removeObserver(observer)
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    return data as T
+}
diff --git a/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDaoTest.kt b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDaoTest.kt
new file mode 100644
index 0000000..9bccb44
--- /dev/null
+++ b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDaoTest.kt
@@ -0,0 +1,97 @@
+package com.androiddevs.shoppinglisttestingyt.data.local
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import androidx.room.Room
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.SmallTest
+import com.androiddevs.shoppinglisttestingyt.getOrAwaitValue
+import com.google.common.truth.Truth.assertThat
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.runBlockingTest
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import javax.inject.Inject
+import javax.inject.Named
+
+@ExperimentalCoroutinesApi
+@SmallTest
+@HiltAndroidTest
+class ShoppingDaoTest {
+
+    @get:Rule
+    var hiltRule = HiltAndroidRule(this)
+
+    @get:Rule
+    var instantTaskExecutorRule = InstantTaskExecutorRule()
+
+    @Inject
+    @Named("test_db")
+    lateinit var database: ShoppingItemDatabase
+    private lateinit var dao: ShoppingDao
+
+    @Before
+    fun setup() {
+        hiltRule.inject()
+        dao = database.shoppingDao()
+    }
+
+    @After
+    fun teardown() {
+        database.close()
+    }
+
+    @Test
+    fun insertShoppingItem() = runBlockingTest {
+
+        val shoppingItem = ShoppingItem("name", 1, 1f, "url", id = 1)
+        dao.insertShoppingItem(shoppingItem)
+
+        val allShoppingItems = dao.observeAllShoppingItems().getOrAwaitValue()
+
+        assertThat(allShoppingItems).contains(shoppingItem)
+    }
+
+    @Test
+    fun deleteShoppingItem() = runBlockingTest {
+        val shoppingItem = ShoppingItem("name", 1, 1f, "url", id = 1)
+        dao.insertShoppingItem(shoppingItem)
+        dao.deleteShoppingItem(shoppingItem)
+
+        val allShoppingItems = dao.observeAllShoppingItems().getOrAwaitValue()
+
+        assertThat(allShoppingItems).doesNotContain(shoppingItem)
+    }
+
+    @Test
+    fun observeTotalPriceSum() = runBlockingTest {
+        val shoppingItem1 = ShoppingItem("name", 2, 10f, "url", id = 1)
+        val shoppingItem2 = ShoppingItem("name", 4, 5.5f, "url", id = 2)
+        val shoppingItem3 = ShoppingItem("name", 0, 100f, "url", id = 3)
+        dao.insertShoppingItem(shoppingItem1)
+        dao.insertShoppingItem(shoppingItem2)
+        dao.insertShoppingItem(shoppingItem3)
+
+        val totalPriceSum = dao.observeTotalPrice().getOrAwaitValue()
+
+        assertThat(totalPriceSum).isEqualTo(2 * 10f + 4 * 5.5f)
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/di/TestAppModule.kt b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/di/TestAppModule.kt
new file mode 100644
index 0000000..d49172c
--- /dev/null
+++ b/app/src/androidTest/java/com/androiddevs/shoppinglisttestingyt/di/TestAppModule.kt
@@ -0,0 +1,23 @@
+package com.androiddevs.shoppinglisttestingyt.di
+
+import android.content.Context
+import androidx.room.Room
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItemDatabase
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.components.ApplicationComponent
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Named
+
+@Module
+@InstallIn(ApplicationComponent::class)
+object TestAppModule {
+
+    @Provides
+    @Named("test_db")
+    fun provideInMemoryDb(@ApplicationContext context: Context) =
+        Room.inMemoryDatabaseBuilder(context, ShoppingItemDatabase::class.java)
+            .allowMainThreadQueries()
+            .build()
+}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 699d276..8ce8518 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,13 +3,14 @@
     package="com.androiddevs.shoppinglisttestingyt">
 
     <application
+        android:name=".ShoppingApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".ui.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ShoppingApplication.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ShoppingApplication.kt
new file mode 100644
index 0000000..999f3a4
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ShoppingApplication.kt
@@ -0,0 +1,7 @@
+package com.androiddevs.shoppinglisttestingyt
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class ShoppingApplication : Application()
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDao.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDao.kt
new file mode 100644
index 0000000..62dca61
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingDao.kt
@@ -0,0 +1,20 @@
+package com.androiddevs.shoppinglisttestingyt.data.local
+
+import androidx.lifecycle.LiveData
+import androidx.room.*
+
+@Dao
+interface ShoppingDao {
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertShoppingItem(shoppingItem: ShoppingItem)
+
+    @Delete
+    suspend fun deleteShoppingItem(shoppingItem: ShoppingItem)
+
+    @Query("SELECT * FROM shopping_items")
+    fun observeAllShoppingItems(): LiveData<List<ShoppingItem>>
+
+    @Query("SELECT SUM(price * amount) FROM shopping_items")
+    fun observeTotalPrice(): LiveData<Float>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItem.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItem.kt
new file mode 100644
index 0000000..3917b54
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItem.kt
@@ -0,0 +1,14 @@
+package com.androiddevs.shoppinglisttestingyt.data.local
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "shopping_items")
+data class ShoppingItem(
+    var name: String,
+    var amount: Int,
+    var price: Float,
+    var imageUrl: String,
+    @PrimaryKey(autoGenerate = true)
+    val id: Int? = null
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItemDatabase.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItemDatabase.kt
new file mode 100644
index 0000000..6c2a6a6
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/local/ShoppingItemDatabase.kt
@@ -0,0 +1,13 @@
+package com.androiddevs.shoppinglisttestingyt.data.local
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+
+@Database(
+    entities = [ShoppingItem::class],
+    version = 1
+)
+abstract class ShoppingItemDatabase : RoomDatabase() {
+
+    abstract fun shoppingDao(): ShoppingDao
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/PixabayAPI.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/PixabayAPI.kt
new file mode 100644
index 0000000..bcbe558
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/PixabayAPI.kt
@@ -0,0 +1,16 @@
+package com.androiddevs.shoppinglisttestingyt.data.remote
+
+import com.androiddevs.shoppinglisttestingyt.BuildConfig
+import com.androiddevs.shoppinglisttestingyt.data.remote.responses.ImageResponse
+import retrofit2.Response
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface PixabayAPI {
+
+    @GET("/api/")
+    suspend fun searchForImage(
+        @Query("q") searchQuery: String,
+        @Query("key") apiKey: String = BuildConfig.API_KEY
+    ): Response<ImageResponse>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResponse.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResponse.kt
new file mode 100644
index 0000000..b555693
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResponse.kt
@@ -0,0 +1,8 @@
+package com.androiddevs.shoppinglisttestingyt.data.remote.responses
+
+
+data class ImageResponse(
+    val hits: List<ImageResult>,
+    val total: Int,
+    val totalHits: Int
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResult.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResult.kt
new file mode 100644
index 0000000..4d3e094
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/data/remote/responses/ImageResult.kt
@@ -0,0 +1,30 @@
+package com.androiddevs.shoppinglisttestingyt.data.remote.responses
+
+
+import com.google.gson.annotations.SerializedName
+
+data class ImageResult(
+    val comments: Int,
+    val downloads: Int,
+    val favorites: Int,
+    val id: Int,
+    val imageHeight: Int,
+    val imageSize: Int,
+    val imageWidth: Int,
+    val largeImageURL: String,
+    val likes: Int,
+    val pageURL: String,
+    val previewHeight: Int,
+    val previewURL: String,
+    val previewWidth: Int,
+    val tags: String,
+    val type: String,
+    val user: String,
+    @SerializedName("user_id")
+    val userId: Int,
+    val userImageURL: String,
+    val views: Int,
+    val webformatHeight: Int,
+    val webformatURL: String,
+    val webformatWidth: Int
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/di/AppModule.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/di/AppModule.kt
new file mode 100644
index 0000000..1936476
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/di/AppModule.kt
@@ -0,0 +1,70 @@
+package com.androiddevs.shoppinglisttestingyt.di
+
+import android.content.Context
+import androidx.room.Room
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingDao
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItemDatabase
+import com.androiddevs.shoppinglisttestingyt.data.remote.PixabayAPI
+import com.androiddevs.shoppinglisttestingyt.other.Constants.BASE_URL
+import com.androiddevs.shoppinglisttestingyt.other.Constants.DATABASE_NAME
+import com.androiddevs.shoppinglisttestingyt.repositories.DefaultShoppingRepository
+import com.androiddevs.shoppinglisttestingyt.repositories.ShoppingRepository
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.components.ApplicationComponent
+import dagger.hilt.android.qualifiers.ApplicationContext
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import javax.inject.Singleton
+
+@Module
+@InstallIn(ApplicationComponent::class)
+object AppModule {
+
+    @Singleton
+    @Provides
+    fun provideShoppingItemDatabase(
+        @ApplicationContext context: Context
+    ) = Room.databaseBuilder(context, ShoppingItemDatabase::class.java, DATABASE_NAME).build()
+
+    @Singleton
+    @Provides
+    fun provideDefaultShoppingRepository(
+        dao: ShoppingDao,
+        api: PixabayAPI
+    ) = DefaultShoppingRepository(dao, api) as ShoppingRepository
+
+    @Singleton
+    @Provides
+    fun provideShoppingDao(
+        database: ShoppingItemDatabase
+    ) = database.shoppingDao()
+
+    @Singleton
+    @Provides
+    fun providePixabayApi(): PixabayAPI {
+        return Retrofit.Builder()
+            .addConverterFactory(GsonConverterFactory.create())
+            .baseUrl(BASE_URL)
+            .build()
+            .create(PixabayAPI::class.java)
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Constants.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Constants.kt
new file mode 100644
index 0000000..185c534
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Constants.kt
@@ -0,0 +1,11 @@
+package com.androiddevs.shoppinglisttestingyt.other
+
+object Constants {
+
+    const val DATABASE_NAME = "shopping_db"
+
+    const val BASE_URL = "https://pixabay.com"
+
+    const val MAX_NAME_LENGTH = 20
+    const val MAX_PRICE_LENGTH = 10
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Event.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Event.kt
new file mode 100644
index 0000000..0285777
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Event.kt
@@ -0,0 +1,24 @@
+package com.androiddevs.shoppinglisttestingyt.other
+
+open class Event<out T>(private val content: T) {
+
+    var hasBeenHandled = false
+        private set // Allow external read but not write
+
+    /**
+     * Returns the content and prevents its use again.
+     */
+    fun getContentIfNotHandled(): T? {
+        return if (hasBeenHandled) {
+            null
+        } else {
+            hasBeenHandled = true
+            content
+        }
+    }
+
+    /**
+     * Returns the content, even if it's already been handled.
+     */
+    fun peekContent(): T = content
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Resource.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Resource.kt
new file mode 100644
index 0000000..80b2364
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/other/Resource.kt
@@ -0,0 +1,23 @@
+package com.androiddevs.shoppinglisttestingyt.other
+
+data class Resource<out T>(val status: Status, val data: T?, val message: String?) {
+    companion object {
+        fun <T> success(data: T?): Resource<T> {
+            return Resource(Status.SUCCESS, data, null)
+        }
+
+        fun <T> error(msg: String, data: T?): Resource<T> {
+            return Resource(Status.ERROR, data, msg)
+        }
+
+        fun <T> loading(data: T?): Resource<T> {
+            return Resource(Status.LOADING, data, null)
+        }
+    }
+}
+
+enum class Status {
+    SUCCESS,
+    ERROR,
+    LOADING
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/DefaultShoppingRepository.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/DefaultShoppingRepository.kt
new file mode 100644
index 0000000..df63664
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/DefaultShoppingRepository.kt
@@ -0,0 +1,61 @@
+package com.androiddevs.shoppinglisttestingyt.repositories
+
+import androidx.lifecycle.LiveData
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingDao
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItem
+import com.androiddevs.shoppinglisttestingyt.data.remote.PixabayAPI
+import com.androiddevs.shoppinglisttestingyt.data.remote.responses.ImageResponse
+import com.androiddevs.shoppinglisttestingyt.other.Resource
+import retrofit2.Response
+import javax.inject.Inject
+
+class DefaultShoppingRepository @Inject constructor(
+    private val shoppingDao: ShoppingDao,
+    private val pixabayAPI: PixabayAPI
+) : ShoppingRepository {
+
+    override suspend fun insertShoppingItem(shoppingItem: ShoppingItem) {
+        shoppingDao.insertShoppingItem(shoppingItem)
+    }
+
+    override suspend fun deleteShoppingItem(shoppingItem: ShoppingItem) {
+        shoppingDao.deleteShoppingItem(shoppingItem)
+    }
+
+    override fun observeAllShoppingItems(): LiveData<List<ShoppingItem>> {
+        return shoppingDao.observeAllShoppingItems()
+    }
+
+    override fun observeTotalPrice(): LiveData<Float> {
+        return shoppingDao.observeTotalPrice()
+    }
+
+    override suspend fun searchForImage(imageQuery: String): Resource<ImageResponse> {
+        return try {
+            val response = pixabayAPI.searchForImage(imageQuery)
+            if(response.isSuccessful) {
+                response.body()?.let {
+                    return@let Resource.success(it)
+                } ?: Resource.error("An unknown error occured", null)
+            } else {
+                Resource.error("An unknown error occured", null)
+            }
+        } catch(e: Exception) {
+            Resource.error("Couldn't reach the server. Check your internet connection", null)
+        }
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/ShoppingRepository.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/ShoppingRepository.kt
new file mode 100644
index 0000000..8331c89
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/repositories/ShoppingRepository.kt
@@ -0,0 +1,20 @@
+package com.androiddevs.shoppinglisttestingyt.repositories
+
+import androidx.lifecycle.LiveData
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItem
+import com.androiddevs.shoppinglisttestingyt.data.remote.responses.ImageResponse
+import com.androiddevs.shoppinglisttestingyt.other.Resource
+import retrofit2.Response
+
+interface ShoppingRepository {
+
+    suspend fun insertShoppingItem(shoppingItem: ShoppingItem)
+
+    suspend fun deleteShoppingItem(shoppingItem: ShoppingItem)
+
+    fun observeAllShoppingItems(): LiveData<List<ShoppingItem>>
+
+    fun observeTotalPrice(): LiveData<Float>
+
+    suspend fun searchForImage(imageQuery: String): Resource<ImageResponse>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/AddShoppingItemFragment.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/AddShoppingItemFragment.kt
new file mode 100644
index 0000000..00ad583
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/AddShoppingItemFragment.kt
@@ -0,0 +1,17 @@
+package com.androiddevs.shoppinglisttestingyt.ui
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.androiddevs.shoppinglisttestingyt.R
+
+class AddShoppingItemFragment : Fragment(R.layout.fragment_add_shopping_item) {
+
+    lateinit var viewModel: ShoppingViewModel
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        viewModel = ViewModelProvider(requireActivity()).get(ShoppingViewModel::class.java)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ImagePickFragment.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ImagePickFragment.kt
new file mode 100644
index 0000000..8c13794
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ImagePickFragment.kt
@@ -0,0 +1,17 @@
+package com.androiddevs.shoppinglisttestingyt.ui
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.androiddevs.shoppinglisttestingyt.R
+
+class ImagePickFragment : Fragment(R.layout.fragment_image_pick) {
+
+    lateinit var viewModel: ShoppingViewModel
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        viewModel = ViewModelProvider(requireActivity()).get(ShoppingViewModel::class.java)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/MainActivity.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/MainActivity.kt
similarity index 73%
rename from app/src/main/java/com/androiddevs/shoppinglisttestingyt/MainActivity.kt
rename to app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/MainActivity.kt
index 50135a6..f34b30d 100644
--- a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/MainActivity.kt
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/MainActivity.kt
@@ -1,7 +1,8 @@
-package com.androiddevs.shoppinglisttestingyt
+package com.androiddevs.shoppinglisttestingyt.ui
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import com.androiddevs.shoppinglisttestingyt.R
 
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingFragment.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingFragment.kt
new file mode 100644
index 0000000..812dea1
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingFragment.kt
@@ -0,0 +1,17 @@
+package com.androiddevs.shoppinglisttestingyt.ui
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.androiddevs.shoppinglisttestingyt.R
+
+class ShoppingFragment : Fragment(R.layout.fragment_shopping) {
+
+    lateinit var viewModel: ShoppingViewModel
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        viewModel = ViewModelProvider(requireActivity()).get(ShoppingViewModel::class.java)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModel.kt b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModel.kt
new file mode 100644
index 0000000..b33e142
--- /dev/null
+++ b/app/src/main/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModel.kt
@@ -0,0 +1,96 @@
+package com.androiddevs.shoppinglisttestingyt.ui
+
+import androidx.hilt.lifecycle.ViewModelInject
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItem
+import com.androiddevs.shoppinglisttestingyt.data.remote.responses.ImageResponse
+import com.androiddevs.shoppinglisttestingyt.other.Constants
+import com.androiddevs.shoppinglisttestingyt.other.Event
+import com.androiddevs.shoppinglisttestingyt.other.Resource
+import com.androiddevs.shoppinglisttestingyt.repositories.ShoppingRepository
+import kotlinx.coroutines.launch
+import kotlin.Exception
+
+class ShoppingViewModel @ViewModelInject constructor(
+    private val repository: ShoppingRepository
+) : ViewModel() {
+
+    val shoppingItems = repository.observeAllShoppingItems()
+
+    val totalPrice = repository.observeTotalPrice()
+
+    private val _images = MutableLiveData<Event<Resource<ImageResponse>>>()
+    val images: LiveData<Event<Resource<ImageResponse>>> = _images
+
+    private val _curImageUrl = MutableLiveData<String>()
+    val curImageUrl: LiveData<String> = _curImageUrl
+
+    private val _insertShoppingItemStatus = MutableLiveData<Event<Resource<ShoppingItem>>>()
+    val insertShoppingItemStatus: LiveData<Event<Resource<ShoppingItem>>> = _insertShoppingItemStatus
+
+    fun setCurImageUrl(url: String) {
+        _curImageUrl.postValue(url)
+    }
+
+    fun deleteShoppingItem(shoppingItem: ShoppingItem) = viewModelScope.launch {
+        repository.deleteShoppingItem(shoppingItem)
+    }
+
+    fun insertShoppingItemIntoDb(shoppingItem: ShoppingItem) = viewModelScope.launch {
+        repository.insertShoppingItem(shoppingItem)
+    }
+
+    fun insertShoppingItem(name: String, amountString: String, priceString: String) {
+        if(name.isEmpty() || amountString.isEmpty() || priceString.isEmpty()) {
+            _insertShoppingItemStatus.postValue(Event(Resource.error("The fields must not be empty", null)))
+            return
+        }
+        if(name.length > Constants.MAX_NAME_LENGTH) {
+            _insertShoppingItemStatus.postValue(Event(Resource.error("The name of the item" +
+                    "must not exceed ${Constants.MAX_NAME_LENGTH} characters", null)))
+            return
+        }
+        if(priceString.length > Constants.MAX_PRICE_LENGTH) {
+            _insertShoppingItemStatus.postValue(Event(Resource.error("The price of the item" +
+                    "must not exceed ${Constants.MAX_PRICE_LENGTH} characters", null)))
+            return
+        }
+        val amount = try {
+            amountString.toInt()
+        } catch(e: Exception) {
+            _insertShoppingItemStatus.postValue(Event(Resource.error("Please enter a valid amount", null)))
+            return
+        }
+        val shoppingItem = ShoppingItem(name, amount, priceString.toFloat(), _curImageUrl.value ?: "")
+        insertShoppingItemIntoDb(shoppingItem)
+        setCurImageUrl("")
+        _insertShoppingItemStatus.postValue(Event(Resource.success(shoppingItem)))
+    }
+
+    fun searchForImage(imageQuery: String) {
+        if(imageQuery.isEmpty()) {
+            return
+        }
+        _images.value = Event(Resource.loading(null))
+        viewModelScope.launch {
+            val response = repository.searchForImage(imageQuery)
+            _images.value = Event(response)
+        }
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/main/res/drawable-v24/ic_add.xml b/app/src/main/res/drawable-v24/ic_add.xml
new file mode 100644
index 0000000..eb23254
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_add.xml
@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>
diff --git a/app/src/main/res/drawable-v24/ic_image.xml b/app/src/main/res/drawable-v24/ic_image.xml
new file mode 100644
index 0000000..8232c4d
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_image.xml
@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M21,19V5c0,-1.1 -0.9,-2 -2,-2H5c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2zM8.5,13.5l2.5,3.01L14.5,12l4.5,6H5l3.5,-4.5z"/>
+</vector>
diff --git a/app/src/main/res/font/poppins_regular.ttf b/app/src/main/res/font/poppins_regular.ttf
new file mode 100644
index 0000000..441d3ba
Binary files /dev/null and b/app/src/main/res/font/poppins_regular.ttf differ
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 4fc2444..e51421e 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,18 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/rootLayout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".ui.MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <fragment
+        android:id="@+id/navHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_add_shopping_item.xml b/app/src/main/res/layout/fragment_add_shopping_item.xml
new file mode 100644
index 0000000..c9f8823
--- /dev/null
+++ b/app/src/main/res/layout/fragment_add_shopping_item.xml
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ImageView
+        android:id="@+id/ivShoppingImage"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:layout_margin="16dp"
+        android:src="@drawable/ic_image"
+        android:scaleType="centerCrop"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/textInputLayout"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:hint="Name"
+        app:layout_constraintBottom_toBottomOf="@+id/ivShoppingImage"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/ivShoppingImage"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etShoppingItemName"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:inputType="textAutoComplete" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/textInputLayout3"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:hint="Amount"
+        app:layout_constraintEnd_toStartOf="@+id/textInputLayout2"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/ivShoppingImage">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etShoppingItemAmount"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:inputType="number"/>
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/textInputLayout2"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:hint="Price per Item"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toEndOf="@+id/textInputLayout3"
+        app:layout_constraintTop_toBottomOf="@+id/ivShoppingImage">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etShoppingItemPrice"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:inputType="numberDecimal" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/btnAddShoppingItem"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:layout_marginRight="16dp"
+        android:text="Add"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="@+id/textInputLayout2"
+        app:layout_constraintTop_toBottomOf="@+id/textInputLayout2" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_image_pick.xml b/app/src/main/res/layout/fragment_image_pick.xml
new file mode 100644
index 0000000..10473c1
--- /dev/null
+++ b/app/src/main/res/layout/fragment_image_pick.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/textInputLayout4"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:hint="Search for Images..."
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etSearch"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/rvImages"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_margin="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/textInputLayout4" />
+
+    <ProgressBar
+        android:id="@+id/progressBar"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_shopping.xml b/app/src/main/res/layout/fragment_shopping.xml
new file mode 100644
index 0000000..c636b11
--- /dev/null
+++ b/app/src/main/res/layout/fragment_shopping.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/rootLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.MainActivity">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/clShoppingItems"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/rvShoppingItems"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toTopOf="@id/tvShoppingItemPrice"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent" />
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/tvShoppingItemPrice"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:layout_marginLeft="16dp"
+            android:textSize="28sp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fabAddShoppingItem"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        app:srcCompat="@drawable/ic_add"
+        app:backgroundTint="@color/colorAccent"
+        app:fabSize="normal"
+        app:layout_anchorGravity="bottom|right|end"
+        app:layout_anchor="@id/clShoppingItems" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_image.xml b/app/src/main/res/layout/item_image.xml
new file mode 100644
index 0000000..a5e0ec1
--- /dev/null
+++ b/app/src/main/res/layout/item_image.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content">
+
+    <ImageView
+        android:id="@+id/ivShoppingImage"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:scaleType="centerCrop"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_shopping.xml b/app/src/main/res/layout/item_shopping.xml
new file mode 100644
index 0000000..183dd18
--- /dev/null
+++ b/app/src/main/res/layout/item_shopping.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="16dp">
+
+    <ImageView
+        android:id="@+id/ivShoppingImage"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:scaleType="centerCrop"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/tvName"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="NAME"
+        android:layout_marginLeft="16dp"
+        android:textSize="28sp"
+        app:layout_constraintStart_toEndOf="@+id/tvShoppingItemAmount"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/tvShoppingItemAmount"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="3x"
+        android:layout_marginLeft="16dp"
+        android:textSize="28sp"
+        app:layout_constraintStart_toEndOf="@+id/ivShoppingImage"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/tvShoppingItemPrice"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Price: 3€"
+        android:layout_marginLeft="16dp"
+        android:textSize="20sp"
+        app:layout_constraintStart_toEndOf="@+id/ivShoppingImage"
+        app:layout_constraintTop_toBottomOf="@+id/tvShoppingItemAmount" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index fac9291..67fb76b 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,10 +1,16 @@
 <resources>
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.MaterialComponents">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
+        <item name="android:textViewStyle">@style/PoppinsTextStyle</item>
+    </style>
+
+    <style name="PoppinsTextStyle" parent="android:Widget.TextView">
+        <item name="fontFamily">@font/poppins_regular</item>
+        <item name="android:textColor">@android:color/white</item>
     </style>
 
 </resources>
\ No newline at end of file
diff --git a/app/src/test/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilTest.kt b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilTest.kt
new file mode 100644
index 0000000..a014565
--- /dev/null
+++ b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/LiveDataUtilTest.kt
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.androiddevs.shoppinglisttestingyt
+
+import androidx.annotation.VisibleForTesting
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.Observer
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.TimeoutException
+
+/**
+ * Gets the value of a [LiveData] or waits for it to have one, with a timeout.
+ *
+ * Use this extension from host-side (JVM) tests. It's recommended to use it alongside
+ * `InstantTaskExecutorRule` or a similar mechanism to execute tasks synchronously.
+ */
+@VisibleForTesting(otherwise = VisibleForTesting.NONE)
+fun <T> LiveData<T>.getOrAwaitValueTest(
+    time: Long = 2,
+    timeUnit: TimeUnit = TimeUnit.SECONDS,
+    afterObserve: () -> Unit = {}
+): T {
+    var data: T? = null
+    val latch = CountDownLatch(1)
+    val observer = object : Observer<T> {
+        override fun onChanged(o: T?) {
+            data = o
+            latch.countDown()
+            this@getOrAwaitValueTest.removeObserver(this)
+        }
+    }
+    this.observeForever(observer)
+
+    try {
+        afterObserve.invoke()
+
+        // Don't wait indefinitely if the LiveData is not set.
+        if (!latch.await(time, timeUnit)) {
+            throw TimeoutException("LiveData value was never set.")
+        }
+
+    } finally {
+        this.removeObserver(observer)
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    return data as T
+}
diff --git a/app/src/test/java/com/androiddevs/shoppinglisttestingyt/MainCoroutineRule.kt b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/MainCoroutineRule.kt
new file mode 100644
index 0000000..f98629d
--- /dev/null
+++ b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/MainCoroutineRule.kt
@@ -0,0 +1,28 @@
+package com.androiddevs.shoppinglisttestingyt
+
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.TestCoroutineDispatcher
+import kotlinx.coroutines.test.TestCoroutineScope
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.setMain
+import org.junit.rules.TestWatcher
+import org.junit.runner.Description
+
+@ExperimentalCoroutinesApi
+class MainCoroutineRule(
+    private val dispatcher: CoroutineDispatcher = TestCoroutineDispatcher()
+) : TestWatcher(), TestCoroutineScope by TestCoroutineScope(dispatcher) {
+
+    override fun starting(description: Description?) {
+        super.starting(description)
+        Dispatchers.setMain(dispatcher)
+    }
+
+    override fun finished(description: Description?) {
+        super.finished(description)
+        cleanupTestCoroutines()
+        Dispatchers.resetMain()
+    }
+}
\ No newline at end of file
diff --git a/app/src/test/java/com/androiddevs/shoppinglisttestingyt/repositories/FakeShoppingRepository.kt b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/repositories/FakeShoppingRepository.kt
new file mode 100644
index 0000000..db6e5e1
--- /dev/null
+++ b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/repositories/FakeShoppingRepository.kt
@@ -0,0 +1,67 @@
+package com.androiddevs.shoppinglisttestingyt.repositories
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItem
+import com.androiddevs.shoppinglisttestingyt.data.remote.responses.ImageResponse
+import com.androiddevs.shoppinglisttestingyt.other.Resource
+
+class FakeShoppingRepository : ShoppingRepository {
+
+    private val shoppingItems = mutableListOf<ShoppingItem>()
+
+    private val observableShoppingItems = MutableLiveData<List<ShoppingItem>>(shoppingItems)
+    private val observableTotalPrice = MutableLiveData<Float>()
+
+    private var shouldReturnNetworkError = false
+
+    fun setShouldReturnNetworkError(value: Boolean) {
+        shouldReturnNetworkError = value
+    }
+
+    private fun refreshLiveData() {
+        observableShoppingItems.postValue(shoppingItems)
+        observableTotalPrice.postValue(getTotalPrice())
+    }
+
+    private fun getTotalPrice(): Float {
+        return shoppingItems.sumByDouble { it.price.toDouble() }.toFloat()
+    }
+
+    override suspend fun insertShoppingItem(shoppingItem: ShoppingItem) {
+        shoppingItems.add(shoppingItem)
+        refreshLiveData()
+    }
+
+    override suspend fun deleteShoppingItem(shoppingItem: ShoppingItem) {
+        shoppingItems.remove(shoppingItem)
+        refreshLiveData()
+    }
+
+    override fun observeAllShoppingItems(): LiveData<List<ShoppingItem>> {
+        return observableShoppingItems
+    }
+
+    override fun observeTotalPrice(): LiveData<Float> {
+        return observableTotalPrice
+    }
+
+    override suspend fun searchForImage(imageQuery: String): Resource<ImageResponse> {
+        return if(shouldReturnNetworkError) {
+            Resource.error("Error", null)
+        } else {
+            Resource.success(ImageResponse(listOf(), 0, 0))
+        }
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/test/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModelTest.kt b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModelTest.kt
new file mode 100644
index 0000000..43eb284
--- /dev/null
+++ b/app/src/test/java/com/androiddevs/shoppinglisttestingyt/ui/ShoppingViewModelTest.kt
@@ -0,0 +1,100 @@
+package com.androiddevs.shoppinglisttestingyt.ui
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import com.androiddevs.shoppinglisttestingyt.MainCoroutineRule
+import com.androiddevs.shoppinglisttestingyt.data.local.ShoppingItem
+import com.androiddevs.shoppinglisttestingyt.getOrAwaitValueTest
+import com.androiddevs.shoppinglisttestingyt.other.Constants
+import com.androiddevs.shoppinglisttestingyt.other.Status
+import com.androiddevs.shoppinglisttestingyt.repositories.DefaultShoppingRepository
+import com.androiddevs.shoppinglisttestingyt.repositories.FakeShoppingRepository
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+
+@ExperimentalCoroutinesApi
+class ShoppingViewModelTest {
+
+    @get:Rule
+    var instantTaskExecutorRule = InstantTaskExecutorRule()
+
+    @get:Rule
+    var mainCoroutineRule = MainCoroutineRule()
+
+    private lateinit var viewModel: ShoppingViewModel
+
+    @Before
+    fun setup() {
+        viewModel = ShoppingViewModel(FakeShoppingRepository())
+    }
+
+    @Test
+    fun `insert shopping item with empty field, returns error`() {
+        viewModel.insertShoppingItem("name", "", "3.0")
+
+        val value = viewModel.insertShoppingItemStatus.getOrAwaitValueTest()
+
+        assertThat(value.getContentIfNotHandled()?.status).isEqualTo(Status.ERROR)
+    }
+
+    @Test
+    fun `insert shopping item with too long name, returns error`() {
+        val string = buildString {
+            for(i in 1..Constants.MAX_NAME_LENGTH + 1) {
+                append(1)
+            }
+        }
+        viewModel.insertShoppingItem(string, "5", "3.0")
+
+        val value = viewModel.insertShoppingItemStatus.getOrAwaitValueTest()
+
+        assertThat(value.getContentIfNotHandled()?.status).isEqualTo(Status.ERROR)
+    }
+
+    @Test
+    fun `insert shopping item with too long price, returns error`() {
+        val string = buildString {
+            for(i in 1..Constants.MAX_PRICE_LENGTH + 1) {
+                append(1)
+            }
+        }
+        viewModel.insertShoppingItem("name", "5", string)
+
+        val value = viewModel.insertShoppingItemStatus.getOrAwaitValueTest()
+
+        assertThat(value.getContentIfNotHandled()?.status).isEqualTo(Status.ERROR)
+    }
+
+    @Test
+    fun `insert shopping item with too high amount, returns error`() {
+        viewModel.insertShoppingItem("name", "9999999999999999999", "3.0")
+
+        val value = viewModel.insertShoppingItemStatus.getOrAwaitValueTest()
+
+        assertThat(value.getContentIfNotHandled()?.status).isEqualTo(Status.ERROR)
+    }
+
+    @Test
+    fun `insert shopping item with valid input, returns success`() {
+        viewModel.insertShoppingItem("name", "5", "3.0")
+
+        val value = viewModel.insertShoppingItemStatus.getOrAwaitValueTest()
+
+        assertThat(value.getContentIfNotHandled()?.status).isEqualTo(Status.SUCCESS)
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/build.gradle b/build.gradle
index 1241d12..ac93a04 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,8 @@ buildscript {
     dependencies {
         classpath "com.android.tools.build:gradle:4.0.1"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-
+        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.3.0"
+        classpath "com.google.dagger:hilt-android-gradle-plugin:2.28.3-alpha"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
diff --git a/gradle.properties b/gradle.properties
deleted file mode 100644
index 4d15d01..0000000
--- a/gradle.properties
+++ /dev/null
@@ -1,21 +0,0 @@
-# Project-wide Gradle settings.
-# IDE (e.g. Android Studio) users:
-# Gradle settings configured through the IDE *will override*
-# any settings specified in this file.
-# For more details on how to configure your build environment visit
-# http://www.gradle.org/docs/current/userguide/build_environment.html
-# Specifies the JVM arguments used for the daemon process.
-# The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx2048m
-# When configured, Gradle will run in incubating parallel mode.
-# This option should only be used with decoupled projects. More details, visit
-# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
-# AndroidX package structure to make it clearer which packages are bundled with the
-# Android operating system, and which are packaged with your app"s APK
-# https://developer.android.com/topic/libraries/support-library/androidx-rn
-android.useAndroidX=true
-# Automatically convert third-party libraries to use AndroidX
-android.enableJetifier=true
-# Kotlin code style for this project: "official" or "obsolete":
-kotlin.code.style=official
\ No newline at end of file