Manchester | 26-ITP-May | Monsur Abdulrahman | Sprint 3 | Coursework/sprint 3 | Implement and Rewrite Test

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

@@ -35,3 +35,24 @@ 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(270);
+assertEquals(reflex, "Reflex angle");
+
+const invalidLow = getAngleType(-10);
+assertEquals(invalidLow, "Invalid angle");
+
+const invalidHigh = getAngleType(400);
+assertEquals(invalidHigh, "Invalid angle"); 
+
+
+

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

@@ -12,6 +12,19 @@
 
 function isProperFraction(numerator, denominator) {
  // TODO: Implement this function
+ if (denominator === 0) {
+ return false;
+ }
+ if (numerator === 0) {
+ return true;
+ }
+ if (numerator < 0 && denominator < 0) {
+ return isProperFraction(-numerator, -denominator);
+ }
+ if (numerator < 0 || denominator < 0) {
+ return false;
+ }
+ return numerator < denominator;
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -31,3 +44,15 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+
+assertEquals(isProperFraction(2, 1), false);
+
+assertEquals(isProperFraction(0, 1), true);
+
+assertEquals(isProperFraction(1, 0), false);
+
+assertEquals(isProperFraction(-1, 2), true);
+
+assertEquals(isProperFraction(1, -2), false);
+
+assertEquals(isProperFraction(-1, -2), true);

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

@@ -23,6 +23,25 @@
 
 function getCardValue(card) {
  // TODO: Implement this function
+ const validRanks = ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"];
+ const validSuits = ["♠", "♥", "♦", "♣"];
+
+ // Checking if the card is valid
+ const rank = card.slice(0, -1);
+ const suit = card.slice(-1);
+
+ if (!validRanks.includes(rank) || !validSuits.includes(suit)) {
+ throw new Error("Invalid card");
+ }
+
+ // Determininig the value of the card
+ if (rank === "A") {
+ return 11;
+ } else if (["J", "Q", "K"].includes(rank)) {
+ return 10;
+ } else {
+ return parseInt(rank, 10);
+ }
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -40,6 +59,11 @@ 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);
+
 
 // Handling invalid cards
 try {
@@ -52,3 +76,5 @@ try {
 }
 
 // What other invalid card cases can you think of?
+assertEquals(getCardValue("11♥"), 11);
+assertEquals(getCardValue("A♦"), 11);

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

@@ -14,7 +14,31 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // 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 (90 < angle < 180)`, () => {
+ // Test various obtuse angles, including boundary cases
+ 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 === 180`, () => {
+ expect(getAngleType(180)).toEqual("Straight angle");
+});
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (180 < angle < 360)`, () => {
+ // Test various reflex angles, including boundary cases
+ expect(getAngleType(181)).toEqual("Reflex angle");
+ expect(getAngleType(270)).toEqual("Reflex angle");
+ expect(getAngleType(359)).toEqual("Reflex angle");
+});
 // Case 6: Invalid angles
+test(`should throw an error when angle is negative`, () => {
+ expect(() => getAngleType(-1)).toThrow("Invalid angle");
+});
+test(`should throw an error when angle is greater than or equal to 360`, () => {
+ expect(() => getAngleType(360)).toThrow("Invalid angle");
+});

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

@@ -2,9 +2,63 @@
 // 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.
+const isProperFraction = require("../implement/2-is-proper-fraction");
+
+// Case 1: Proper fractions
+test(`should return true for proper fractions`, () => {
+ expect(isProperFraction(1, 2)).toEqual(true);
+ expect(isProperFraction(-1, 2)).toEqual(true);
+ expect(isProperFraction(-1, -2)).toEqual(true);
+});
+
+// Case 2: Improper fractions
+test(`should return false for improper fractions`, () => {
+ expect(isProperFraction(2, 1)).toEqual(false);
+ expect(isProperFraction(3, 2)).toEqual(false);
+ expect(isProperFraction(-3, 2)).toEqual(false);
+ expect(isProperFraction(3, -2)).toEqual(false);
+});
+
+// Case 3: Zero numerator
+test(`should return true when numerator is zero`, () => {
+ expect(isProperFraction(0, 1)).toEqual(true);
+ expect(isProperFraction(0, -1)).toEqual(true);
+});
+
+// Case 4: Zero denominator
+test(`should return false when denominator is zero`, () => {
+ expect(isProperFraction(1, 0)).toEqual(false);
+ expect(isProperFraction(-1, 0)).toEqual(false);
+ expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+// Case 5: Negative fractions
+test(`should return false for negative fractions with positive denominator`, () => {
+ expect(isProperFraction(-1, 2)).toEqual(true);
+});
+
+test(`should return false for negative fractions with negative denominator`, () => {
+ expect(isProperFraction(-1, -2)).toEqual(true);
+});
+
+// Case 6: Invalid fractions (denominator is zero)
+test(`should return false when denominator is zero`, () => {
+ expect(isProperFraction(1, 0)).toEqual(false);
+ expect(isProperFraction(-1, 0)).toEqual(false);
+ expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+// Case 7: Special case: numerator is zero
+test(`should return true when numerator is zero`, () => {
+ expect(isProperFraction(0, 1)).toEqual(true);
+ expect(isProperFraction(0, -1)).toEqual(true);
+}); 
+
 
 // Special case: numerator is zero
 test(`should return false when denominator is zero`, () => {
  expect(isProperFraction(1, 0)).toEqual(false);
 });
+

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

@@ -4,11 +4,44 @@ const getCardValue = require("../implement/3-get-card-value");
 
 // TODO: Write tests in Jest syntax to cover all possible outcomes.
 
+
 // Case 1: Ace (A)
 test(`Should return 11 when given an ace card`, () => {
  expect(getCardValue("A♠")).toEqual(11);
+ expect(getCardValue("A♥")).toEqual(11);
+ expect(getCardValue("A♦")).toEqual(11);
+ expect(getCardValue("A♣")).toEqual(11);
+});
+
+// Case 2: Face cards (J, Q, K)
+test(`Should return 10 when given a face card`, () => {
+ expect(getCardValue("J♠")).toEqual(10);
+ expect(getCardValue("Q♥")).toEqual(10);
+ expect(getCardValue("K♦")).toEqual(10);
 });
 
+// Case 3: Number cards (2-10)
+test(`Should return the numeric value when given a number card`, () => {
+ 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);
+ expect(getCardValue("10♠")).toEqual(10);
+});
+
+// Case 4: Invalid cards
+test(`Should throw an error when given an invalid card`, () => {
+ expect(() => getCardValue("invalid")).toThrow("Invalid card");
+ expect(() => getCardValue("1♠")).toThrow("Invalid card");
+ expect(() => getCardValue("11♥")).toThrow("Invalid card");
+ expect(() => getCardValue("A♦")).not.toThrow(); // Valid ace card
+ expect(() => getCardValue("J♣")).not.toThrow(); // Valid face card
+}); 
+
 // Suggestion: Group the remaining test data into these categories:
 // Number Cards (2-10)
 // Face Cards (J, Q, K)