Manchester | 26-ITP-Jan | khalidbih | Sprint 3 | coursework/sprint-3-implement-and-rewrite

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

@@ -15,9 +15,23 @@
 // execute the code to ensure all tests pass.
 
 function getAngleType(angle) {
-  // TODO: Implement this function
+  if (angle <= 0 || angle >= 360) {
+    return "Invalid angle";
+  } else 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";
+  }
 }
 
+// TODO: Implement this function
+
 // 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;
@@ -35,3 +49,24 @@ function assertEquals(actualOutput, targetOutput) {
 // Example: Identify Right Angles
 const right = getAngleType(90);
 assertEquals(right, "Right angle");
+
+const acute = getAngleType(45);
+assertEquals(acute, "Acute angle");
+
+const obtuse = getAngleType(120);
+assertEquals(obtuse, "Obtuse angle");
+
+const straight = getAngleType(180);
+assertEquals(straight, "Straight angle");
+
+const Reflex = getAngleType(200);
+assertEquals(Reflex, "Reflex angle");
+
+const invalid1 = getAngleType(0);
+assertEquals(invalid1, "Invalid angle");
+
+const invalid2 = getAngleType(360);
+assertEquals(invalid2, "Invalid angle");
+
+const invalid3 = getAngleType(-10);
+assertEquals(invalid3, "Invalid angle");

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

@@ -11,8 +11,13 @@
 // execute the code to ensure all tests pass.
 
 function isProperFraction(numerator, denominator) {
-  // TODO: Implement this function
+  if (Math.abs(numerator) < Math.abs(denominator)) {
+    return true;
+  } else {
+    return false;
+  }
 }
+// TODO: Implement this function
 
 // The line below allows us to load the isProperFraction function into tests in other files.
 // This will be useful in the "rewrite tests with jest" step.
@@ -31,3 +36,13 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+
+assertEquals(isProperFraction(3, 2), false);
+
+assertEquals(isProperFraction(2, 2), false);
+
+assertEquals(isProperFraction(-1, 2), true);
+
+assertEquals(isProperFraction(1, -2), true);
+
+assertEquals(isProperFraction(-1, -2), true);

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

@@ -22,8 +22,23 @@
 // execute the code to ensure all tests pass.
 
 function getCardValue(card) {
-  // TODO: Implement this function
+  const rank = card.slice(0, -1);
+  const suit = card.slice(-1);
+
+  const validSuits = ["♠", "♥", "♦", "♣"];
+
+  if (!validSuits.includes(suit)) {
+    throw new Error("invalid card suit.");
+  }
+
+  if (rank === "A") return 11;
+  if (["K", "Q", "J"].includes(rank)) return 10;
+  if (["2", "3", "4", "5", "6", "7", "8", "9", "10"].includes(rank))
+    return Number(rank);
+
+  throw new Error("invalid card rank.");
 }
+// TODO: Implement this function
 
 // 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.
@@ -40,6 +55,11 @@ function assertEquals(actualOutput, targetOutput) {
 // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
 // Examples:
 assertEquals(getCardValue("9♠"), 9);
+assertEquals(getCardValue("A♣"), 11);
+assertEquals(getCardValue("J♥"), 10);
+assertEquals(getCardValue("Q♦"), 10);
+assertEquals(getCardValue("K♠"), 10);
+assertEquals(getCardValue("10♣"), 10);
 
 // Handling invalid cards
 try {
@@ -49,4 +69,11 @@ try {
   console.error("Error was not thrown for invalid card");
 } catch (e) {}
 
+try {
+  getCardValue("A?");
+  console.error("Error was not thrown for invalid suit");
+} catch (e) {}
+
 // What other invalid card cases can you think of?
+assertEquals(getCardValue("2♦"), 2);
+assertEquals(getCardValue("5♥"), 5);

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

@@ -14,7 +14,30 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when angle is exactly 90`, () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (90 < angle < 180)`, () => {
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+});
 // Case 4: Straight angle
+test(`should return "Straight angle" when angle is exactly 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(200)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
+
 // Case 6: Invalid angles
+test(`should return "Invalid angle" when angle <= 0 or angle >= 360`, () => {
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(-10)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(400)).toEqual("Invalid angle");
+});

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

@@ -8,3 +8,21 @@ const isProperFraction = require("../implement/2-is-proper-fraction");
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+test("should return false when numerator is greater than denominator", () => {
+  expect(isProperFraction(5, 2)).toEqual(false);
+});
+test("should return true when |numerator| < |denominator|", () => {
+  expect(isProperFraction(-4, 7)).toEqual(true);
+});
+test("should return false when numerator equals denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});
+test("should return true when numerator < denominator and denominator is negative", () => {
+  expect(isProperFraction(4, -7)).toEqual(true);
+});
+test("should return true when numerator and denominator are both negative and numerator < denominator", () => {
+  expect(isProperFraction(-4, -7)).toEqual(true);
+});
+test("should return true when numerator is zero and denominator is negative", () => {
+  expect(isProperFraction(0, -5)).toEqual(true);
+});

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

@@ -13,8 +13,22 @@ test(`Should return 11 when given an ace card`, () => {
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
 //   Invalid Cards
-
+test("should return the value of number cards", () => {
+  expect(getCardValue("2♣")).toEqual(2);
+  expect(getCardValue("5♠")).toEqual(5);
+  expect(getCardValue("10♦")).toEqual(10);
+});
+test("should return 10 for face cards", () => {
+  expect(getCardValue("J♣")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("K♠")).toEqual(10);
+});
+test("should throw an error for invalid cards", () => {
+  expect(() => getCardValue("1♣")).toThrow("invalid card rank.");
+  expect(() => getCardValue("AX")).toThrow();
+  expect(() => getCardValue("K")).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
-