London | 26-ITP-Sep | Mandip Sanger | Sprint 3 | Implement-and-rewrire-tests

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

@@ -16,8 +16,20 @@
 
 function getAngleType(angle) {
   // TODO: Implement this function
+  if (angle > 0 && angle < 90) {
+    return "Acute angle";
+  }
+  if (angle === 90) return "Right angle";
+  if (angle > 90 && angle < 180) {
+    return "Obtuse angle";
+  }
+  if (angle === 180) return "Straight angle";
+  else if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  } else {
+    return "Invalid 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;

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

@@ -12,6 +12,10 @@
 
 function isProperFraction(numerator, denominator) {
   // TODO: Implement this function
+  if (denominator <= 0) {
+    return false;
+  }
+  return numerator < denominator;
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.

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

@@ -23,32 +23,72 @@
 
 function getCardValue(card) {
   // TODO: Implement this function
-}
+  const validSuits = ["♠", "♥", "♦", "♣"];
+  // Get the suit (last character) and rank (everything before it)
+  const suit = card.slice(-1);
+  const rank = card.slice(0, -1);
+  console.log(suit, 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;
+  // Check that the suit is valid
+  if (!validSuits.includes(suit)) {
+    throw new Error("Invalid card");
+  }
+  // Ace
+  if (rank === "A") {
+    return 11;
+  }
 
-// Helper functions to make our assertions easier to read.
-function assertEquals(actualOutput, targetOutput) {
-  console.assert(
-    actualOutput === targetOutput,
-    `Expected ${actualOutput} to equal ${targetOutput}`
-  );
-}
+  if (rank === "J" || rank === "Q" || rank === "K") {
+    return 10;
+  }
+  if (rank === "J" || rank === "Q" || rank === "K") {
+    return 10;
+  }
+  if (Number(rank) >= 2 && Number(rank) <= 10) {
+    return Number(rank);
+  }
 
-// TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
-// Examples:
-assertEquals(getCardValue("9♠"), 9);
+  {
+    throw new Error("Invalid card");
+  }
 
-// Handling invalid cards
-try {
-  getCardValue("invalid");
+  // 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;
 
-  // This line will not be reached if an error is thrown as expected
-  console.error("Error was not thrown for invalid card 😢");
-} catch (e) {
-  console.log("Error thrown for invalid card 🎉");
-}
+  // Helper functions to make our assertions easier to read.
+  function assertEquals(actualOutput, targetOutput) {
+    console.assert(
+      actualOutput === targetOutput,
+      `Expected ${actualOutput} to equal ${targetOutput}`
+    );
+  }
+
+  // // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
+  // // Examples:
+  // assertEquals(getCardValue("9♠"), 9);
 
-// What other invalid card cases can you think of?
+  // // Handling invalid cards
+  // try {
+  //   getCardValue("invalid");
+
+  //   // This line will not be reached if an error is thrown as expected
+  //   console.error("Error was not thrown for invalid card 😢");
+  // } catch (e) {
+  //   console.log("Error thrown for invalid card 🎉");
+  // }
+
+  // // What other invalid card cases can you think of?
+  // //invalid rank
+  // getCardValue("1♠");
+  // getCardValue("11♣");
+  // getCardValue("0♦");
+  // getCardValue("B♥");
+  // getCardValue("X♠");
+
+  // //invalid suit
+  // getCardValue("AX");
+  // getCardValue("5*");
+  // getCardValue("10H");
+  // getCardValue("QS");
+}

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

@@ -14,7 +14,29 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when angle is 90`, () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when angel is >90 & <180`, () => {
+  expect(getAngleType(100)).toEqual("Obtuse angle");
+  expect(getAngleType(95)).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 180 < angle < 360', () => {
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(260)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
+
 // Case 6: Invalid angles
+test('should return "Invalid angle" for angles outside the valid range', () => {
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(-10)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(500)).toEqual("Invalid angle");
+});

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

@@ -1,10 +1,39 @@
-// 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");
 
-// TODO: Write tests in Jest syntax to cover all combinations of positives, negatives, zeros, and other categories.
+test("should return true when numerator is less than denominator", () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+  expect(isProperFraction(3, 4)).toEqual(true);
+});
+
+test("should return false when numerator is greater than denominator", () => {
+  expect(isProperFraction(5, 2)).toEqual(false);
+  expect(isProperFraction(10, 3)).toEqual(false);
+});
+
+test("should return false when numerator equals denominator", () => {
+  expect(isProperFraction(4, 4)).toEqual(false);
+});
+
+test("should return true when numerator is zero and denominator is positive", () => {
+  expect(isProperFraction(0, 5)).toEqual(true);
+});
 
-// Special case: numerator is zero
-test(`should return false when denominator is zero`, () => {
+test("should return false when denominator is zero", () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+test("should return false when numerator and denominator are zero", () => {
+  expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+test("should return true when numerator is negative and denominator is positive", () => {
+  expect(isProperFraction(-1, 6)).toEqual(true);
+});
+
+test("should return false when denominator is negative", () => {
+  expect(isProperFraction(1, -5)).toEqual(false);
+});
+
+test("should return false when both numerator and denominator are negative", () => {
+  expect(isProperFraction(-4, -5)).toEqual(false);
+});

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

@@ -8,6 +8,35 @@ const getCardValue = require("../implement/3-get-card-value");
 test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
+// Case 2: Number cards (2–10)
+test("should return the value of number cards", () => {
+  expect(getCardValue("2♠")).toEqual(2);
+  expect(getCardValue("5♦")).toEqual(5);
+  expect(getCardValue("10♣")).toEqual(10);
+});
+
+// Case 3: Face cards (J, Q, K)
+test("should return 10 for face cards", () => {
+  expect(getCardValue("J♠")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("K♦")).toEqual(10);
+});
+
+// Case 4: Invalid cards
+test("should return error for invalid cards", () => {
+  expect(() => {
+    getCardValue("1♠");
+  }).toThrow("Invalid card");
+  expect(() => {
+    getCardValue("11♠");
+  }).toThrow("Invalid card");
+  expect(() => {
+    getCardValue("X♦");
+  }).toThrow("Invalid card");
+  expect(() => {
+    getCardValue("");
+  }).toThrow("Invalid card");
+});
 
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
@@ -17,4 +46,3 @@ test(`Should return 11 when given an ace card`, () => {
 // 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
-