London | 25-ITP-Sep | Adnaan Abo | Sprint 3 | coursework/sprint-3-implement-and-rewrite

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

@@ -10,9 +10,16 @@
 function getAngleType(angle) {
   if (angle === 90) {
     return "Right angle";
+  } else if (angle < 90) {
+    return "Acute 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";
   }
-   // 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.
+
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -51,13 +58,18 @@ assertEquals(acute, "Acute angle");
 // 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
+assertEquals(obtuse, "Obtuse angle");
 
 // 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 +8,8 @@
 // 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 numerator < denominator;
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -47,13 +46,21 @@ assertEquals(improperFraction, false);
 // 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?
+// Zero Numerator check:
+// Input: numerator = 0, denominator = 5
+// target output: true
+// Explanation: The fraction 0/5 is a proper fraction because the numerator (0) is less than the denominator (5). The function should return true.
+const zeroNumerator = isProperFraction(0, 5);
+assertEquals(zeroNumerator, true);

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

@@ -8,8 +8,16 @@
 // 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); // Get everything except the last char (the suit)
+
   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: "${rank}"`);  // rather than just "Invalid card rank" we can show the actual rank that was invalid
   }
 }
 
@@ -40,18 +48,41 @@ assertEquals(aceofSpades, 11);
 // 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);
 
 // 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 jackofClubs = getCardValue("J♣");
+assertEquals(jackofClubs, 10);
+const queenofHearts = getCardValue("Q♥");
+assertEquals(queenofHearts, 10);
+const tenofSpades = getCardValue("10♠");
+assertEquals(tenofSpades, 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 aceofClubs = getCardValue("A♣");
+assertEquals(aceofClubs, 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."
+const invalidCard = () => getCardValue("1♠");
+// ====> write your test here, and then add a line to pass the test in the function above
+try {
+  invalidCard();
+  console.assert(false, "Expected an error to be thrown for invalid card rank");
+} catch (e) {
+  console.assert(
+    e.message ===  'Invalid card rank: "1"',  // rather than just "Invalid card rank" we can show the actual rank that was invalid
+    `Expected error message to be "Invalid card rank" but got "${e.message}"`
+  );
+}
+

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

@@ -12,15 +12,34 @@ test("should identify right angle (90°)", () => {
 // 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");
+});
 
 // 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");
+});
 
 // 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");
+});
+
+
+// We can run this test file using the command `npx jest 1-get-angle-type.test.js`
+// in the terminal. Making sure we are in the directory where this file is located.
+// If we have Jest installed globally, you can simply run `jest 1-get-angle-type.test.js`
+// instead. If you have added a test script to your package.json file, you can also run
+// `npm test 1-get-angle-type.test.js` to execute the tests.

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

@@ -7,7 +7,22 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
+test("should return false for an improper fraction", () => {
+  expect(isProperFraction(5, 3)).toEqual(false);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return false for a negative fraction", () => {
+  expect(isProperFraction(-2, 3)).toEqual(false);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false for equal numerator and denominator", () => {
+  expect(isProperFraction(4, 4)).toEqual(false);
+});
+
+// We can run this test file using the command `npx jest 2-is-proper-fraction.test.js`
+// in the terminal. Making sure we are in the directory where this file is located.
+// If we have Jest installed globally, you can simply run `jest 2-is-proper-fraction.test.js`
+// instead. If you have added a test script to your package.json file, you can also run
+// `npm test 2-is-proper-fraction.test.js` to execute the tests.

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

@@ -8,6 +8,49 @@ test("should return 11 for Ace of Spades", () => {
 });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return correct value for number cards (2-10)", () => {
+  expect(getCardValue("2♣")).toEqual(2);
+  expect(getCardValue("5♦")).toEqual(5);
+  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 Ace (A)", () => {
+  expect(getCardValue("A♣")).toEqual(11);
+  expect(getCardValue("A♦")).toEqual(11);
+  expect(getCardValue("A♥")).toEqual(11);
+}); 
 // Case 5: Handle Invalid Cards:
+
+test("should throw an error for invalid input '1♣'", () => {
+  expect(() => getCardValue("1♣")).toThrow('Invalid card rank: "1"');
+});
+
+test("should throw an error for invalid input '1♦'", () => {
+  expect(() => getCardValue("1♦")).toThrow('Invalid card rank: "1"');
+});
+
+test("should throw an error for invalid input 'B♥'", () => {
+  expect(() => getCardValue("B♥")).toThrow('Invalid card rank: "B"');
+});
+
+test("should throw an error for invalid input 'Z♠'", () => {
+  expect(() => getCardValue("Z♠")).toThrow('Invalid card rank: "Z"');
+});
+
+test("should throw an error for empty string", () => {
+  expect(() => getCardValue("")).toThrow('Invalid card rank: ""');
+});
+
+
+// We can run this test file using the command `npx jest 3-get-card-value.test.js`
+// in the terminal. Making sure we are in the directory where this file is located.
+// If we have Jest installed globally, you can simply run `3-get-card-value.test.js`
+// instead. If you have added a test script to your package.json file, you can also run
+// `npm test 3-get-card-value.test.js` to execute the tests.