London | 25-ITP-May | Samuel Tarawally | Sprint 3 | Coursework

.gitignore

@@ -1,4 +1,39 @@
-node_modules
+# Generated .gitignore file for: Node, JavaScript
+# Created with FOSSA's DevOps Tools
+
+# Node
+node_modules/
+npm-debug.log
+yarn-error.log
+.env
 .DS_Store
-.vscode
-**/.DS_Store
+dist/
+.cache/
+coverage/
+
+# JavaScript
+# Add JavaScript-specific ignores here
+package-lock.json
+
+# Notebooks and documentation
+docs/
+
+# Common
+.DS_Store
+Thumbs.db
+*.log
+*.bak
+*.tmp
+*.swp
+*~
+
+# IDE and editor generated files
+.idea/
+*.sublime-*
+.vscode/
+.devcontainer/
+
+# Local environment files
+.env
+.env.local
+.env.*.local

Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js

@@ -8,56 +8,35 @@
 // Then, write the next test! :) Go through this process until all the cases are implemented
 
 function getAngleType(angle) {
-  if (angle === 90) {
-    return "Right angle";
-  }
-   // Run the tests, work out what Case 2 is testing, and implement the required code here.
-   // Then keep going for the other cases, one at a time.
+  if (angle === 90) return "Right angle";
+  if (angle < 90) return "Acute angle";
+  if (angle > 90 && angle < 180) return "Obtuse angle";
+  if (angle === 180) return "Straight angle";
+  if (angle > 180 && angle < 360) return "Reflex angle";
 }
 
-// The line below allows us to load the getAngleType function into tests in other files.
-// This will be useful in the "rewrite tests with jest" step.
 module.exports = getAngleType;
 
-// we're going to use this helper function to make our assertions easier to read
-// if the actual output matches the target output, the test will pass
 function assertEquals(actualOutput, targetOutput) {
   console.assert(
     actualOutput === targetOutput,
     `Expected ${actualOutput} to equal ${targetOutput}`
   );
 }
 
-// Acceptance criteria:
-
-// Given an angle in degrees,
-// When the function getAngleType is called with this angle,
-// Then it should:
-
-// Case 1: Identify Right Angles:
-// When the angle is exactly 90 degrees,
-// Then the function should return "Right angle"
-const right = getAngleType(90);
-assertEquals(right, "Right angle");
-
-// Case 2: Identify Acute Angles:
-// When the angle is less than 90 degrees,
-// Then the function should return "Acute angle"
-const acute = getAngleType(45);
-assertEquals(acute, "Acute angle");
-
-// Case 3: Identify Obtuse Angles:
-// When the angle is greater than 90 degrees and less than 180 degrees,
-// Then the function should return "Obtuse angle"
-const obtuse = getAngleType(120);
-// ====> write your test here, and then add a line to pass the test in the function above
-
-// Case 4: Identify Straight Angles:
-// When the angle is exactly 180 degrees,
-// Then the function should return "Straight angle"
-// ====> write your test here, and then add a line to pass the test in the function above
-
-// Case 5: Identify Reflex Angles:
-// When the angle is greater than 180 degrees and less than 360 degrees,
-// Then the function should return "Reflex angle"
-// ====> write your test here, and then add a line to pass the test in the function above
+// Case 1: Identify Right Angles (90°)
+assertEquals(getAngleType(90), "Right angle");
+
+// Case 2: Identify Acute Angles (< 90°)
+assertEquals(getAngleType(45), "Acute angle");
+
+// Case 3: Identify Obtuse Angles (> 90° and < 180°)
+assertEquals(getAngleType(120), "Obtuse angle");
+
+// Case 4: Identify Straight Angles (180°)
+assertEquals(getAngleType(180), "Straight angle");
+
+// Case 5: Identify Reflex Angles (> 180° and < 360°)
+assertEquals(getAngleType(270), "Reflex angle");
+
+console.log("✅ All tests passed!");

Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js

@@ -8,52 +8,28 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-  if (numerator < denominator) {
-    return true;
-  }
+  return Math.abs(numerator) < denominator;
 }
 
-// The line below allows us to load the isProperFraction function into tests in other files.
-// This will be useful in the "rewrite tests with jest" step.
 module.exports = isProperFraction;
 
-// here's our helper again
 function assertEquals(actualOutput, targetOutput) {
   console.assert(
     actualOutput === targetOutput,
     `Expected ${actualOutput} to equal ${targetOutput}`
   );
 }
 
-// Acceptance criteria:
-
-// Proper Fraction check:
-// Input: numerator = 2, denominator = 3
-// target output: true
-// Explanation: The fraction 2/3 is a proper fraction, where the numerator is less than the denominator. The function should return true.
-const properFraction = isProperFraction(2, 3);
-assertEquals(properFraction, true);
-
-// Improper Fraction check:
-// Input: numerator = 5, denominator = 2
-// target output: false
-// Explanation: The fraction 5/2 is an improper fraction, where the numerator is greater than or equal to the denominator. The function should return false.
-const improperFraction = isProperFraction(5, 2);
-assertEquals(improperFraction, false);
-
-// Negative Fraction check:
-// Input: numerator = -4, denominator = 7
-// target output: true
-// Explanation: The fraction -4/7 is a proper fraction because the absolute value of the numerator (4) is less than the denominator (7). The function should return true.
-const negativeFraction = isProperFraction(-4, 7);
-// ====> complete with your assertion
-
-// Equal Numerator and Denominator check:
-// Input: numerator = 3, denominator = 3
-// target output: false
-// Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
-const equalFraction = isProperFraction(3, 3);
-// ====> complete with your assertion
-
-// Stretch:
-// What other scenarios could you test for?
+// Proper Fraction: 2/3 → true
+assertEquals(isProperFraction(2, 3), true);
+
+// Improper Fraction: 5/2 → false
+assertEquals(isProperFraction(5, 2), false);
+
+// Negative Fraction: -4/7 → true (absolute value < denominator)
+assertEquals(isProperFraction(-4, 7), true);
+
+// Equal Numerator and Denominator: 3/3 → false
+assertEquals(isProperFraction(3, 3), false);
+
+console.log("✅ All tests passed!");

Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js

@@ -8,50 +8,46 @@
 // write one test at a time, and make it pass, build your solution up methodically
 // just make one change at a time -- don't rush -- programmers are deep and careful thinkers
 function getCardValue(card) {
-  if (rank === "A") {
-    return 11;
-  }
+  const rank = card.slice(0, -1);
+  if (rank === "A") return 11;
+  if (rank === "J" || rank === "Q" || rank === "K" || rank === "10") return 10;
+  const numValue = parseInt(rank);
+  if (numValue >= 2 && numValue <= 9) return numValue;
+  throw new Error("Invalid card rank");
 }
 
-// The line below allows us to load the getCardValue function into tests in other files.
-// This will be useful in the "rewrite tests with jest" step.
 module.exports = getCardValue;
 
-// You need to write assertions for your function to check it works in different cases
-// we're going to use this helper function to make our assertions easier to read
-// if the actual output matches the target output, the test will pass
 function assertEquals(actualOutput, targetOutput) {
   console.assert(
     actualOutput === targetOutput,
     `Expected ${actualOutput} to equal ${targetOutput}`
   );
 }
-// Acceptance criteria:
-
-// Given a card string in the format "A♠" (representing a card in blackjack - the last character will always be an emoji for a suit, and all characters before will be a number 2-10, or one letter of J, Q, K, A),
-// When the function getCardValue is called with this card string as input,
-// Then it should return the numerical card value
-const aceofSpades = getCardValue("A♠");
-assertEquals(aceofSpades, 11);
-
-// Handle Number Cards (2-10):
-// Given a card with a rank between "2" and "9",
-// When the function is called with such a card,
-// Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
-const fiveofHearts = getCardValue("5♥");
-// ====> write your test here, and then add a line to pass the test in the function above
-
-// Handle Face Cards (J, Q, K):
-// Given a card with a rank of "10," "J," "Q," or "K",
-// When the function is called with such a card,
-// Then it should return the value 10, as these cards are worth 10 points each in blackjack.
-
-// Handle Ace (A):
-// Given a card with a rank of "A",
-// When the function is called with an Ace,
-// Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack.
-
-// Handle Invalid Cards:
-// Given a card with an invalid rank (neither a number nor a recognized face card),
-// When the function is called with such a card,
-// Then it should throw an error indicating "Invalid card rank."
+
+// Ace → 11
+assertEquals(getCardValue("A♠"), 11);
+
+// Number Cards → numeric value
+assertEquals(getCardValue("5♥"), 5);
+assertEquals(getCardValue("2♦"), 2);
+assertEquals(getCardValue("9♣"), 9);
+
+// Face Cards (J, Q, K, 10) → 10
+assertEquals(getCardValue("K♥"), 10);
+assertEquals(getCardValue("Q♠"), 10);
+assertEquals(getCardValue("J♦"), 10);
+assertEquals(getCardValue("10♣"), 10);
+
+// Ace (all suits) → 11
+assertEquals(getCardValue("A♥"), 11);
+
+// Invalid Card → throw error
+try {
+  getCardValue("X♠");
+  console.assert(false, "Should have thrown an error for invalid card");
+} catch (error) {
+  assertEquals(error.message, "Invalid card rank");
+}
+
+console.log("✅ All tests passed!");

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js

@@ -1,26 +1,30 @@
-// This statement loads the getAngleType function you wrote in the implement directory.
-// We will use the same function, but write tests for it using Jest in this file.
 const getAngleType = require("../implement/1-get-angle-type");
 
 test("should identify right angle (90°)", () => {
   expect(getAngleType(90)).toEqual("Right angle");
 });
 
-// REPLACE the comments with the tests
-// make your test descriptions as clear and readable as possible
-
-// Case 2: Identify Acute Angles:
-// When the angle is less than 90 degrees,
-// Then the function should return "Acute angle"
+test("should identify acute angle (< 90°)", () => {
+  expect(getAngleType(45)).toEqual("Acute angle");
+  expect(getAngleType(30)).toEqual("Acute angle");
+  expect(getAngleType(1)).toEqual("Acute angle");
+  expect(getAngleType(89)).toEqual("Acute angle");
+});
 
-// Case 3: Identify Obtuse Angles:
-// When the angle is greater than 90 degrees and less than 180 degrees,
-// Then the function should return "Obtuse angle"
+test("should identify obtuse angle (> 90° and < 180°)", () => {
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+  expect(getAngleType(135)).toEqual("Obtuse angle");
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+});
 
-// Case 4: Identify Straight Angles:
-// When the angle is exactly 180 degrees,
-// Then the function should return "Straight angle"
+test("should identify straight angle (180°)", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 
-// Case 5: Identify Reflex Angles:
-// When the angle is greater than 180 degrees and less than 360 degrees,
-// Then the function should return "Reflex angle"
+test("should identify reflex angle (> 180° and < 360°)", () => {
+  expect(getAngleType(270)).toEqual("Reflex angle");
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+  expect(getAngleType(200)).toEqual("Reflex angle");
+});

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js

@@ -1,13 +1,23 @@
-// This statement loads the isProperFraction function you wrote in the implement directory.
-// We will use the same function, but write tests for it using Jest in this file.
 const isProperFraction = require("../implement/2-is-proper-fraction");
 
 test("should return true for a proper fraction", () => {
   expect(isProperFraction(2, 3)).toEqual(true);
 });
 
-// Case 2: Identify Improper Fractions:
+test("should return false for an improper fraction (numerator >= denominator)", () => {
+  expect(isProperFraction(5, 2)).toEqual(false);
+  expect(isProperFraction(10, 3)).toEqual(false);
+  expect(isProperFraction(7, 7)).toEqual(false);
+});
 
-// Case 3: Identify Negative Fractions:
+test("should return true for a negative proper fraction (|numerator| < denominator)", () => {
+  expect(isProperFraction(-4, 7)).toEqual(true);
+  expect(isProperFraction(-2, 5)).toEqual(true);
+  expect(isProperFraction(-1, 10)).toEqual(true);
+});
 
-// Case 4: Identify Equal Numerator and Denominator:
+test("should return false when numerator equals denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+  expect(isProperFraction(1, 1)).toEqual(false);
+  expect(isProperFraction(100, 100)).toEqual(false);
+});

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js

@@ -1,13 +1,37 @@
-// This statement loads the getCardValue function you wrote in the implement directory.
-// We will use the same function, but write tests for it using Jest in this file.
 const getCardValue = require("../implement/3-get-card-value");
 
 test("should return 11 for Ace of Spades", () => {
-  const aceofSpades = getCardValue("A♠");
-  expect(aceofSpades).toEqual(11);
+  expect(getCardValue("A♠")).toEqual(11);
 });
 
-// Case 2: Handle Number Cards (2-10):
-// Case 3: Handle Face Cards (J, Q, K):
-// Case 4: Handle Ace (A):
-// Case 5: Handle Invalid Cards:
+test("should return correct value for number cards (2-9)", () => {
+  expect(getCardValue("2♦")).toEqual(2);
+  expect(getCardValue("3♣")).toEqual(3);
+  expect(getCardValue("4♥")).toEqual(4);
+  expect(getCardValue("5♥")).toEqual(5);
+  expect(getCardValue("6♠")).toEqual(6);
+  expect(getCardValue("7♦")).toEqual(7);
+  expect(getCardValue("8♣")).toEqual(8);
+  expect(getCardValue("9♥")).toEqual(9);
+});
+
+test("should return 10 for face cards (J, Q, K, 10)", () => {
+  expect(getCardValue("10♣")).toEqual(10);
+  expect(getCardValue("J♦")).toEqual(10);
+  expect(getCardValue("Q♠")).toEqual(10);
+  expect(getCardValue("K♥")).toEqual(10);
+});
+
+test("should return 11 for all Aces", () => {
+  expect(getCardValue("A♠")).toEqual(11);
+  expect(getCardValue("A♥")).toEqual(11);
+  expect(getCardValue("A♦")).toEqual(11);
+  expect(getCardValue("A♣")).toEqual(11);
+});
+
+test("should throw an error for invalid card rank", () => {
+  expect(() => getCardValue("X♠")).toThrow("Invalid card rank");
+  expect(() => getCardValue("Z♥")).toThrow("Invalid card rank");
+  expect(() => getCardValue("11♦")).toThrow("Invalid card rank");
+  expect(() => getCardValue("0♣")).toThrow("Invalid card rank");
+});