Brussels | ITP-2026-1 | Meysam Razagh | Sprint-3 | Implement and rewrite

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

@@ -11,8 +11,25 @@ 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.
+  // 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.
+
+  // Case 2 code:
+  if (angle < 90) {
+    return "Acute angle";
+  }
+  // Case 3 code:
+  if (angle > 90 && angle < 180) {
+    return "Obtuse angle";
+  }
+  // Case 4 code:
+  if (angle === 180) {
+    return "Straight angle";
+  }
+  // Case 5 code:
+  if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  }
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -50,14 +67,19 @@ 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"
 // ====> write your test here, and then add a line to pass the test in the function above
+const straight = getAngleType(180);
+assertEquals(straight, "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"
-// ====> write your test here, and then add a line to pass the test in the function above
+// ====> write your test here, and then add a line to pass the test in the function above
+const reflex = getAngleType(270);
+assertEquals(reflex, "Reflex angle");

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

@@ -8,9 +8,11 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-  if (numerator < denominator) {
+  // Use Math.abs to handle negative numbers as per acceptance criteria
+  if (Math.abs(numerator) < Math.abs(denominator)) {
     return true;
   }
+  return false;
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -46,14 +48,18 @@ 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);
-// ====> complete with your assertion
+assertEquals(negativeFraction, true);
 
 // 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
+assertEquals(equalFraction, false);
 
 // Stretch:
 // What other scenarios could you test for?
+// Case: Zero as numerator
+assertEquals(isProperFraction(0, 5), true);
+// Case: Zero as denominator
+assertEquals(isProperFraction(5, 0), false);

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

@@ -8,9 +8,25 @@
 // 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) {
+  // Extract the rank by removing the suit (last character)
+  const rank = card.slice(0, -1);
   if (rank === "A") {
     return 11;
   }
+
+  // Handle Face Cards and 10
+  if (rank === "K" || rank === "Q" || rank === "J" || rank === "10") {
+    return 10;
+  }
+
+  // Handle Number Cards (2-9)
+  const numericRank = parseInt(rank);
+  if (numericRank >= 2 && numericRank <= 9) {
+    return numericRank;
+  }
+
+  // Handle Invalid Cards
+  throw new Error("Invalid card rank");
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -39,19 +55,29 @@ assertEquals(aceofSpades, 11);
 // 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
+assertEquals(fiveofHearts, 5); // Assertion added for Case 2
 
 // 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.
+assertEquals(getCardValue("10♦"), 10);
+assertEquals(getCardValue("J♣"), 10);
+assertEquals(getCardValue("Q♥"), 10);
+assertEquals(getCardValue("K♠"), 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.
+assertEquals(getCardValue("A♣"), 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) {
+  assertEquals(error.message, "Invalid card rank");
+}

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

@@ -13,14 +13,38 @@ test("should identify right angle (90°)", () => {
 // When the angle is less than 90 degrees,
 // Then the function should return "Acute angle"
 
+test("should return 'Acute angle' when the angle is less than 90 degrees", () => {
+  const input = 45; // Test value for acute angle
+  const result = getAngleType(input);
+  expect(result).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 return 'Obtuse angle' when the angle is between 90 and 180 degrees", () => {
+  const input = 120; // Test value for obtuse angle
+  const result = getAngleType(input);
+  expect(result).toEqual("Obtuse angle");
+});
+
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
 
+test("should return 'Straight angle' when the angle is exactly 180 degrees", () => {
+  const input = 180;
+  const result = getAngleType(input);
+  expect(result).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 return 'Reflex angle' when the angle is between 180 and 360 degrees", () => {
+  const input = 270; // Test value for reflex angle
+  const result = getAngleType(input);
+  expect(result).toEqual("Reflex angle");
+});

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)).toBe(false);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return true for a negative proper fraction", () => {
+  expect(isProperFraction(-4, 7)).toBe(true);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false when numerator and denominator are equal", () => {
+  expect(isProperFraction(3, 3)).toBe(false);
+});

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

@@ -8,6 +8,30 @@ test("should return 11 for Ace of Spades", () => {
 });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return the correct numeric value for number cards 2-10", () => {
+  expect(getCardValue("2♥")).toEqual(2);
+  expect(getCardValue("5♦")).toEqual(5);
+  expect(getCardValue("9♣")).toEqual(9);
+  expect(getCardValue("10♠")).toEqual(10);
+});
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return 10 for face cards (J, Q, K)", () => {
+  expect(getCardValue("J♥")).toEqual(10);
+  expect(getCardValue("Q♦")).toEqual(10);
+  expect(getCardValue("K♣")).toEqual(10);
+});
 // Case 4: Handle Ace (A):
+test("should return 11 for any Ace suit", () => {
+  expect(getCardValue("A♦")).toEqual(11);
+  expect(getCardValue("A♣")).toEqual(11);
+});
 // Case 5: Handle Invalid Cards:
+test("should throw an error for invalid card ranks", () => {
+  expect(() => {
+    getCardValue("Z♠");
+  }).toThrow("Invalid card rank");
+
+  expect(() => {
+    getCardValue("11♥");
+  }).toThrow("Invalid card rank");
+});