London | 26-ITP-Sep | Abakar Souleyman | Sprint 3 | implement-and-rewrite-tests

implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js

@@ -6,7 +6,35 @@ import { getAngleType } from "../implement/1-get-angle-type.js";
 // TODO: Write tests to cover all cases, including boundary and invalid cases.
 // Example: Identify Right Angles
 
-test("Classifies right angles", () => {
+test("Classifies for exactly 90°", () => {
   const right = getAngleType(90);
   assert.equal(right, "Right angle");
 });
+test("Classifies for angles greater than 0° and less than 90°", () => {
+  const acute = getAngleType(89);
+  assert.equal(acute, "Acute angle");
+});
+test("Classifies for angles greater than 90° and less than 180°", () => {
+  const obtuse = getAngleType(179);
+  assert.equal(obtuse, "Obtuse angle");
+});
+test("Classifies for exactly 180°", () => {
+  const straight = getAngleType(180);
+  assert.equal(straight, "Straight angle");
+});
+test("Classifies for angles greater than 180° and less than 360°", () => {
+  const reflex = getAngleType(359);
+  assert.equal(reflex, "Reflex angle");
+});
+test("Classifies for angles outside the valid range.", () => {
+  const invalid = getAngleType(361);
+  assert.equal(invalid, "Invalid angle");
+});
+test("Classifies for exactly 0° (lower boundary)", () => {
+  const invalid = getAngleType(0);
+  assert.equal(invalid, "Invalid angle");
+});
+test("Classifies for exactly 360° (upper boundary)", () => {
+  const invalid = getAngleType(360);
+  assert.equal(invalid, "Invalid angle");
+});

implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js

@@ -10,3 +10,51 @@ test("Basic proper fraction", () => {
   // Example: 1/2 is a proper fraction
   assert.equal(isProperFraction(1, 2), true);
 });
+// improper fraction
+test("numerator larger than denominator", () => {
+  assert.equal(isProperFraction(2, 1), false);
+});
+test("numerator equal to denominator", () => {
+  assert.equal(isProperFraction(1, 1), false);
+});
+// negative numerator
+test("negative numerator, positive denominator, proper", () => {
+  assert.equal(isProperFraction(-1, 2), true);
+});
+test("negative numerator, positive denominator, improper", () => {
+  assert.equal(isProperFraction(-3, 2), false);
+});
+// negative denominator
+test("positive numerator, negative denominator, proper", () => {
+  assert.equal(isProperFraction(1, -2), true);
+});
+test("positive numerator, negative denominator, improper", () => {
+  assert.equal(isProperFraction(3, -2), false);
+});
+// both negative
+test("both negative, proper", () => {
+  assert.equal(isProperFraction(-1, -2), true);
+});
+test("both negative, improper", () => {
+  assert.equal(isProperFraction(-3, -2), false);
+});
+test("both negative, equal", () => {
+  assert.equal(isProperFraction(-2, -2), false);
+});
+// zero numerator
+test("zero numerator, positive denominator", () => {
+  assert.equal(isProperFraction(0, 5), true);
+});
+test("zero numerator, negative denominator", () => {
+  assert.equal(isProperFraction(0, -5), true);
+});
+// zero denominator
+test("zero denominator, positive numerator", () => {
+  assert.equal(isProperFraction(5, 0), false);
+});
+test("zero denominator, negative numerator", () => {
+  assert.equal(isProperFraction(-5, 0), false);
+});
+test("zero numerator and zero denominator", () => {
+  assert.equal(isProperFraction(0, 0), false);
+});

implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js

@@ -9,8 +9,43 @@ test("Valid single-digit card", () => {
   assert.equal(getCardValue("9♠"), 9);
 });
 
+test("When the card is an ace (A), the function should return 11", () => {
+  assert.equal(getCardValue("A♠"), 11);
+  assert.equal(getCardValue("A♥"), 11);
+  assert.equal(getCardValue("A♦"), 11);
+  assert.equal(getCardValue("A♣"), 11);
+});
+test("When the card is a face card (J, Q, K), the function should return 10", () => {
+  assert.equal(getCardValue("J♠"), 10);
+  assert.equal(getCardValue("Q♥"), 10);
+  assert.equal(getCardValue("K♦"), 10);
+});
+test("When the card is a number card (2 to 10), the function should return its numeric value", () => {
+  assert.equal(getCardValue("2♠"), 2);
+  assert.equal(getCardValue("3♥"), 3);
+  assert.equal(getCardValue("4♦"), 4);
+  assert.equal(getCardValue("5♣"), 5);
+  assert.equal(getCardValue("6♠"), 6);
+  assert.equal(getCardValue("7♥"), 7);
+  assert.equal(getCardValue("8♦"), 8);
+  assert.equal(getCardValue("9♣"), 9);
+  assert.equal(getCardValue("10♠"), 10);
+});
 test("Arbitrary non-card string", () => {
-  assert.throws(() => getCardValue("invalid"), /Expected a number followed by a suit, but got "invalid"/, "Expected clear error");
+  assert.throws(
+    () => getCardValue("invalid"),
+    /Expected a number followed by a suit, but got "invalid"/,
+    "Expected clear error"
+  );
 });
-
 // TODO: What other invalid card cases can you think of?
+
+test("Invalid card cases", () => {
+  assert.throws(() => getCardValue("1♠"));
+  assert.throws(() => getCardValue("11♠"));
+  assert.throws(() => getCardValue("X♠"));
+  assert.throws(() => getCardValue("A"));
+  assert.throws(() => getCardValue("2"));
+  assert.throws(() => getCardValue("2X"));
+  assert.throws(() => getCardValue(""));
+});

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

@@ -17,5 +17,16 @@
 // execute the code to ensure all tests pass.
 
 export function getAngleType(angle) {
-  // TODO: Implement this function
+  if (angle > 0 && angle < 90) {
+    return "Acute angle";
+  } else if (angle === 90) {
+    return "Right angle";
+  } else if (angle > 90 && angle < 180) {
+    return "Obtuse angle";
+  } else if (angle === 180) {
+    return "Straight angle";
+  } else if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  }
+  return "Invalid angle";
 }

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

@@ -15,4 +15,9 @@
 
 export function isProperFraction(numerator, denominator) {
   // TODO: Implement this function
+  if (Math.abs(numerator) < Math.abs(denominator)) {
+    return true;
+  } else {
+    return false;
+  }
 }

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

@@ -24,5 +24,24 @@
 // execute the code to ensure all tests pass.
 
 export function getCardValue(card) {
-  // TODO: Implement this function
+  const rank = card.slice(0, -1);
+  const suit = card.slice(-1);
+
+  const validSuits = ["♠", "♥", "♦", "♣"];
+  const numberRanks = ["2", "3", "4", "5", "6", "7", "8", "9", "10"];
+  const faceRanks = ["J", "Q", "K"];
+
+  if (!validSuits.includes(suit)) {
+    throw new Error(`Expected a rank followed by a suit, but got "${card}"`);
+  }
+
+  if (rank === "A") {
+    return 11;
+  } else if (faceRanks.includes(rank)) {
+    return 10;
+  } else if (numberRanks.includes(rank)) {
+    return Number(rank);
+  }
+
+  throw new Error(`Expected a rank followed by a suit, but got "${card}"`);
 }

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

@@ -7,12 +7,30 @@ import { getAngleType } from "../implement/1-get-angle-type.js";
 test(`should return "Acute angle" when (0 < angle < 90)`, () => {
   // Test various acute angles, including boundary cases
   expect(getAngleType(1)).toEqual("Acute angle");
-  expect(getAngleType(45)).toEqual("Acute angle");
   expect(getAngleType(89)).toEqual("Acute angle");
 });
-
 // Case 2: Right angle
+test(`should return "Right angle" when (angle === 90)`, () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (angle > 90 && angle < 180)`, () => {
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+});
 // Case 4: Straight angle
+test(`should return "Straight angle" when (angle === 180)`, () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (angle > 180 && angle < 360)`, () => {
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
 // Case 6: Invalid angles
+test(`should return angles outside the valid range.)`, () => {
+  expect(getAngleType(361)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(0)).toEqual("Invalid angle");
+});

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

@@ -3,6 +3,41 @@ import { isProperFraction } from "../implement/2-is-proper-fraction.js";
 // TODO: Write tests in Jest syntax to cover all combinations of positives, negatives, zeros, and other categories.
 
 // Special case: numerator is zero
+test("should return true when numerator is zero and denominator is positive", () => {
+  expect(isProperFraction(0, 5)).toEqual(true);
+});
+test(`should return true when numerator is zero and denominator is negative`, () => {
+  expect(isProperFraction(0, -1)).toEqual(true);
+});
+// Special case: denominator is zero
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+test("should return false when denominator is 0 and numerator is negative", () => {
+  expect(isProperFraction(-1, 0)).toEqual(false);
+});
+// Special case: Positive numerator, negative denominator
+test(`should return false when numerator and denominator are equal in size and denominator is negative`, () => {
+  expect(isProperFraction(1, -1)).toEqual(false);
+});
+test("should return true when numerator is positive, denominator is negative and numerator is smaller in size", () => {
+  expect(isProperFraction(1, -2)).toEqual(true);
+  });
+  // Special case: Both zero
+test(`should return false when both denominator & numerator are zero`, () => {
+  expect(isProperFraction(0, 0)).toEqual(false);
+});
+// Special case:Negative numerator, negative denominator
+test(`should return true when both are negative and numerator is smaller in size`, () => {
+  expect(isProperFraction(-3, -6)).toEqual(true);
+});
+test("should return false when both are negative and numerator is larger in size", () => {
+  expect(isProperFraction(-6, -3)).toEqual(false);
+});
+// Special case:Negative numerator, positive denominator
+test("should return true when numerator is negative, denominator is positive and numerator is smaller in size", () => {
+  expect(isProperFraction(-1, 2)).toEqual(true);
+});
+test("should return false when numerator is negative, denominator is positive and numerator is larger in size", () => {
+  expect(isProperFraction(-3, 2)).toEqual(false);
+});

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

@@ -9,10 +9,37 @@ test(`Should return 11 when given an ace card`, () => {
 
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
+test(`should return its numeric value When the card is a number card ("2" to "10")`, () => {
+  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);
+});
+
 //   Face Cards (J, Q, K)
+
+test("When the card is a face card (J, Q, K), the function should return 10", () => {
+  expect(getCardValue("J♠")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("K♦")).toEqual(10);
+});
+
 //   Invalid Cards
 
+test("Invalid card cases", () => {
+  expect(() => getCardValue("1♠")).toThrow();
+  expect(() => getCardValue("11♠")).toThrow();
+  expect(() => getCardValue("X♠")).toThrow();
+  expect(() => getCardValue("A")).toThrow();
+  expect(() => getCardValue("2")).toThrow();
+  expect(() => getCardValue("2X")).toThrow();
+  expect(() => getCardValue("")).toThrow();
+});
+
 // To learn how to test whether a function throws an error as expected in Jest,
 // please refer to the Jest documentation:
 // https://jestjs.io/docs/expect#tothrowerror
-