London | 26-ITP-May | Jorvan White | Sprint 3 | Implement and Rewrite Tests

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

@@ -15,6 +15,26 @@
 // execute the code to ensure all tests pass.
 
 function getAngleType(angle) {
+ {
+ 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";
+ }
+ if (angle > 180 && angle < 360) {
+ return "Reflex angle";
+ }
+ return "Invalid angle";
+}
+
+
  // TODO: Implement this function
 }
 
@@ -35,3 +55,6 @@ function assertEquals(actualOutput, targetOutput) {
 // Example: Identify Right Angles
 const right = getAngleType(90);
 assertEquals(right, "Right angle");
+
+
+

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

@@ -10,10 +10,6 @@
 // After you have implemented the function, write tests to cover all the cases, and
 // execute the code to ensure all tests pass.
 
-function isProperFraction(numerator, denominator) {
- // 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.
 module.exports = isProperFraction;
@@ -31,3 +27,20 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+
+function isProperFraction(numerator, denominator) {
+ if (typeof numerator !== "number" || typeof denominator !== "number") {
+ throw new Error("Numerator and denominator must be numbers");
+ }
+ if (denominator === 0) {
+ return false;
+ }
+ if (Math.abs(numerator) < Math.abs(denominator)) {
+ //Math.abs gives an absolute version of a number regardless of positive or negative
+ return true;
+ }
+ return false;
+}
+console.log(isProperFraction(2, 3)); // true
+
+module.exports = isProperFraction;

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

@@ -22,9 +22,31 @@
 // execute the code to ensure all tests pass.
 
 function getCardValue(card) {
- // TODO: Implement this function
+ const suit = card.slice(-1);
+ const rank = card.slice(0, -1);
+
+ const validSuits = ["♠", "♥", "♦", "♣"];
+
+ if (!validSuits.includes(suit)) {
+ throw new Error("Invalid card");
+ }
+
+ if (rank === "A") {
+ return 11;
+ }
+
+ if (["J", "Q", "K"].includes(rank)) {
+ return 10;
+ }
+
+ if (["2", "3", "4", "5", "6", "7", "8", "9", "10"].includes(rank)) {
+ return Number(rank);
+ }
+
+ throw new Error("Invalid card");
 }
 
+
 // 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;
@@ -52,3 +74,6 @@ try {
 }
 
 // What other invalid card cases can you think of?
+// logging cards without suits to throw error 
+
+

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

@@ -14,7 +14,79 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when (angle === 90)`, () => {
+ // Test various acute angles, including boundary cases
+ 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(135)).toEqual("Obtuse angle");
+ expect(getAngleType(179)).toEqual("Obtuse angle");
+});
+
 // Case 4: Straight angle
+test(`should return "Straight angle" when (angle === 180)`, () => {
+ // Test various acute angles, including boundary cases
+ 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 return "Invalid angle" when (angle < 0 || angle > 360)`, () => {
+ // Test various invalid angles
+ expect(getAngleType(-1)).toEqual("Invalid angle");
+ expect(getAngleType(361)).toEqual("Invalid angle");
+});
+
+// Case 7: Invalid Non-numeric inputs
+test("should return Invalid angle for non-number inputs", () => {
+ expect(getAngleType("90")).toEqual("Invalid angle");
+ expect(getAngleType("hello")).toEqual("Invalid angle");
+});
+
+// Case 8: Decimal angles
+test("should handle decimal angles", () => {
+ expect(getAngleType(0.5)).toEqual("Acute angle");
+ expect(getAngleType(89.5)).toEqual("Acute angle");
+ expect(getAngleType(90.5)).toEqual("Obtuse angle");
+ expect(getAngleType(179.5)).toEqual("Obtuse angle");
+ expect(getAngleType(180.5)).toEqual("Reflex angle");
+ expect(getAngleType(359.5)).toEqual("Reflex angle");
+});
+
+// Case 9: Very large numbers
+test("should return Invalid angle for angles above 360", () => {
+ expect(getAngleType(361)).toEqual("Invalid angle");
+ expect(getAngleType(720)).toEqual("Invalid angle");
+ expect(getAngleType(1000)).toEqual("Invalid angle");
+});
+
+// Case 10: Very large negative numbers
+test("should return Invalid angle for negative angles", () => {
+ expect(getAngleType(-1)).toEqual("Invalid angle");
+ expect(getAngleType(-90)).toEqual("Invalid angle");
+ expect(getAngleType(-360)).toEqual("Invalid angle");
+});
+
+// Case 11: testing boundary angles
+test(`should return "Invalid angle" for values just below 0 or just above 360`, () => {
+ expect(getAngleType(-0.1)).toEqual("Invalid angle");
+ expect(getAngleType(-0.001)).toEqual("Invalid angle");
+ expect(getAngleType(360.1)).toEqual("Invalid angle");
+ expect(getAngleType(360.001)).toEqual("Invalid angle");
+});
+
+test(`should return "Invalid angle" for values equal to 0 or 360`, () => {
+ expect(getAngleType(0)).toEqual("Invalid angle");
+ expect(getAngleType(360)).toEqual("Invalid angle");
+});

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

@@ -8,3 +8,45 @@ 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 true when numerator is zero`, () => {
+ expect(isProperFraction(0, 3)).toEqual(true);
+});
+
+test(`should return false when both numerator and denominator are zero`, () => {
+ expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+test(`should return false when both numerator and denominator are the same number`, () => {
+ expect(isProperFraction(3, 3)).toEqual(false);
+});
+
+test(`should return true when numerator is less than denominator`, () => {
+ expect(isProperFraction(1, 2)).toEqual(true);
+ expect(isProperFraction(-1, -2)).toEqual(true);
+});
+
+test(`should return false when numerator is equal to denominator`, () => {
+ expect(isProperFraction(2, 2)).toEqual(false);
+ expect(isProperFraction(-2, -2)).toEqual(false);
+});
+
+test(`should return false when numerator is greater than denominator`, () => {
+ expect(isProperFraction(3, 2)).toEqual(false);
+ expect(isProperFraction(-3, -2)).toEqual(false);
+});
+
+test("should handle decimal numbers", () => {
+ expect(isProperFraction(0.5, 2)).toEqual(true);
+ expect(isProperFraction(2.5, 2)).toEqual(false);
+});
+
+test("should throw an error for non-numerical values", () => {
+ expect(() => isProperFraction("2", 3)).toThrow(
+ "Numerator and denominator must be numbers"
+ );
+});
+
+test(`should return true when numerator is negative and denominator is positive`, () => {
+ expect(isProperFraction(-1, 2)).toEqual(true);
+});

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

@@ -10,11 +10,62 @@ test(`Should return 11 when given an ace card`, () => {
 });
 
 // Suggestion: Group the remaining test data into these categories:
-// Number Cards (2-10)
-// Face Cards (J, Q, K)
+
+// Case 2: Number Cards (2-10)
+test(`Should return the same number when given a number card of any suit`, () => {
+ expect(getCardValue("3♠")).toEqual(3);
+ expect(getCardValue("5♥")).toEqual(5);
+ expect(getCardValue("9♦")).toEqual(9);
+ expect(getCardValue("10♣")).toEqual(10);
+});
+
+// Case 3: Valid Suits
+test("Should accept all valid suits", () => {
+ expect(getCardValue("A♠")).toEqual(11);
+ expect(getCardValue("A♥")).toEqual(11);
+ expect(getCardValue("A♦")).toEqual(11);
+ expect(getCardValue("A♣")).toEqual(11);
+});
+
+// Case 4: Face Cards (J, Q, K)
+test(`Should return 10 when given an any face card`, () => {
+ expect(getCardValue("J♠")).toEqual(10);
+ expect(getCardValue("Q♥")).toEqual(10);
+ expect(getCardValue("K♦")).toEqual(10);
+});
+
 // Invalid Cards
 
+// Test 5: Non-suit inputs
+test("Cards without suits throw an error", () => {
+ expect(() => {
+ getCardValue("10");
+ }).toThrow("Invalid card");
+});
+
+// Test 6: Invalid suits
+test("Should throw an error for an invalid suit", () => {
+ expect(() => getCardValue("A★")).toThrow("Invalid card");
+});
+
+// Test 7: Invalid rank
+test("Should throw an error for an invalid rank", () => {
+ expect(() => getCardValue("Z♠")).toThrow("Invalid card");
+});
+
+// Test 8: Invalid input
+test("Should throw an error for an invalid card", () => {
+ expect(() => getCardValue("hello")).toThrow("Invalid card");
+});
+
+// Test 9: Reject lowercase card ranks
+test("Should reject lowercase card ranks", () => {
+ expect(() => getCardValue("a♠")).toThrow("Invalid card");
+ expect(() => getCardValue("j♠")).toThrow("Invalid card");
+ expect(() => getCardValue("q♠")).toThrow("Invalid card");
+ expect(() => getCardValue("k♠")).toThrow("Invalid 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
-