Manchester | ITP-Sept-2025 | Fithi Teklom| Sprint 3 | Coursework/sprint-3-implement-and-rewrite

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

@@ -10,6 +10,21 @@
 function getAngleType(angle) {
   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";
   }
    // 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.
@@ -50,14 +65,19 @@ assertEquals(acute, "Acute angle");
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
 const obtuse = getAngleType(120);
+assertEquals(obtuse, "Obtuse angle");
 // ====> 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"
+const straight = getAngleType(180);
+assertEquals(straight, "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"
+const reflex = getAngleType(220);
+assertEquals(reflex, "Reflex angle");
 // ====> write your test here, and then add a line to pass the test in the function above

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

@@ -10,6 +10,8 @@
 function isProperFraction(numerator, denominator) {
   if (numerator < denominator) {
     return true;
+  } else {
+    return false;
   }
 }
 
@@ -46,14 +48,21 @@ assertEquals(improperFraction, false);
 // 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);
+assertEquals(negativeFraction, true);
 // ====> 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);
+assertEquals(equalFraction, false);
 // ====> complete with your assertion
 
 // Stretch:
 // What other scenarios could you test for?
+const zeroFraction = isProperFraction(0, 5);
+assertEquals(zeroFraction, true);
+
+const negativeDenominator = isProperFraction(3, -5);
+assertEquals(negativeDenominator, false);

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

@@ -8,8 +8,15 @@
 // 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) {
+  const rank = card.slice(0, -1);
   if (rank === "A") {
     return 11;
+  } else if (["K", "Q", "J", "10"].includes(rank)) {
+    return 10; 
+  } else if (!isNaN(rank) && Number(rank) >= 2 && Number(rank) <= 9) {
+    return Number(rank); 
+  } else {
+    throw new Error("Invalid card rank"); 
   }
 }
 
@@ -31,27 +38,42 @@ function assertEquals(actualOutput, targetOutput) {
 // 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♥");
+const fiveOfHearts = getCardValue("5♥");
+assertEquals(fiveOfHearts, 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.
+const kingOfDiamonds = getCardValue("K♦");
+assertEquals(kingOfDiamonds, 10);
+
+const queenOfClubs = getCardValue("Q♣");
+assertEquals(queenOfClubs, 10);
+
+const jackOfSpades = getCardValue("J♠");
+assertEquals(jackOfSpades, 10);
 
 // 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.
+const aceOfSpades = getCardValue("A♠");
+assertEquals(aceOfSpades, 11);
 
 // 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."
+try {
+  getCardValue("Z♠");
+} catch (error) {
+  console.log("Caught error:", error.message);
+  assertEquals(error.message, "Invalid card rank");
+}

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

@@ -8,6 +8,27 @@ test("should identify right angle (90°)", () => {
 
 // REPLACE the comments with the tests
 // make your test descriptions as clear and readable as possible
+//Case 2: Identify Acute Angles
+
+test("should identify acute angle (<90°)", () => {
+  expect(getAngleType(45)).toEqual("Acute angle");
+});
+
+// Case 3: Identify Obtuse Angles
+test("should identify obtuse angle (between 90° and 180°)", () => {
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+});
+
+// Case 4: Identify Straight Angles
+test("should identify straight angle (180°)", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
+
+// Case 5: Identify Reflex Angles
+test("should identify reflex angle (between 180° and 360°)", () => {
+  expect(getAngleType(270)).toEqual("Reflex angle");
+});
+
 
 // Case 2: Identify Acute Angles:
 // When the angle is less than 90 degrees,

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

@@ -7,7 +7,16 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
+test("should return false for an improper fraction (numerator > denominator)", () => {
+  expect(isProperFraction(5, 2)).toEqual(false);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return true for a proper fraction with negative numerator", () => {
+  expect(isProperFraction(-4, 7)).toEqual(true);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false when numerator equals denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});

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

@@ -3,11 +3,41 @@
 const getCardValue = require("../implement/3-get-card-value");
 
 test("should return 11 for Ace of Spades", () => {
-  const aceofSpades = getCardValue("A♠");
-  expect(aceofSpades).toEqual(11);
+  const aceOfSpades = getCardValue("A♠");
+  expect(aceOfSpades).toEqual(11);
 });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return 5 for Five of Hearts", () => {
+  const fiveOfHearts = getCardValue("5♥");
+  expect(fiveOfHearts).toEqual(5);
+});
+
+test("should return 10 for Ten of Clubs", () => {
+  const tenOfClubs = getCardValue("10♣");
+  expect(tenOfClubs).toEqual(10);
+});
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return 10 for Jack of Diamonds", () => {
+  const jackOfDiamonds = getCardValue("J♦");
+  expect(jackOfDiamonds).toEqual(10);
+});
+
+test("should return 10 for Queen of Hearts", () => {
+  const queenOfHearts = getCardValue("Q♥");
+  expect(queenOfHearts).toEqual(10);
+});
+
+test("should return 10 for King of Spades", () => {
+  const kingOfSpades = getCardValue("K♠");
+  expect(kingOfSpades).toEqual(10);
+});
 // Case 4: Handle Ace (A):
+test("should return 11 for Ace of Clubs", () => {
+  const aceOfClubs = getCardValue("A♣");
+  expect(aceOfClubs).toEqual(11);
+});
 // Case 5: Handle Invalid Cards:
+test("should throw an error for invalid card rank", () => {
+  expect(() => getCardValue("Z♠")).toThrow("Invalid card rank");
+});