Add tested and untested class

service/src/main/java/justinb99/sampleapi/service/TestedClass.java

@@ -0,0 +1,13 @@
+package justinb99.sampleapi.service;
+
+public class TestedClass {
+
+  private TestedClass() {}
+
+  public static String getEvenOdd(int value) {
+    if (value % 2 == 0)
+      return "even";
+    else
+      return "odd";
+  }
+}

service/src/main/java/justinb99/sampleapi/service/UnTestedClass.java

@@ -0,0 +1,11 @@
+package justinb99.sampleapi.service;
+
+public class UnTestedClass {
+
+  public static String getEvenOdd(int value) {
+    if (value % 2 == 0)
+      return "even";
+    else
+      return "odd";
+  }
+}

service/src/test/java/justinb99/sampleapi/service/TestedClassTest.java

@@ -0,0 +1,14 @@
+package justinb99.sampleapi.service;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class TestedClassTest {
+
+  @Test
+  public void getEvenOdd() {
+    assertEquals(TestedClass.getEvenOdd(2), "even");
+    assertEquals(TestedClass.getEvenOdd(3), "odd");
+  }
+}