West-Midlands | 26-ITP-May | Maryam Janjua | Sprint 3 | Implement and Rewrite Tests

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

@@ -16,6 +16,24 @@
 
 function getAngleType(angle) {
  // TODO: Implement this function
+ 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"
+ }
+ else{
+ return 'Invalid angle'
+ }
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -32,6 +50,48 @@ function assertEquals(actualOutput, targetOutput) {
 }
 
 // TODO: Write tests to cover all cases, including boundary and invalid cases.
-// Example: Identify Right Angles
-const right = getAngleType(90);
-assertEquals(right, "Right angle");
+
+// Right angle
+const rightAngle = getAngleType(90);
+assertEquals(rightAngle, "Right angle");
+
+// Acute angles
+const acuteAngle = getAngleType(75);
+assertEquals(acuteAngle, "Acute angle");
+
+const acuteAngleBoundary = getAngleType(89);
+assertEquals(acuteAngleBoundary, "Acute angle");
+
+// Obtuse angles
+const obtuseAngle = getAngleType(120);
+assertEquals(obtuseAngle, "Obtuse angle");
+
+const obtuseAngleBoundaryStart = getAngleType(91);
+assertEquals(obtuseAngleBoundaryStart, "Obtuse angle");
+
+const obtuseAngleBoundaryEnd = getAngleType(179);
+assertEquals(obtuseAngleBoundaryEnd, "Obtuse angle");
+
+// Straight angle
+const straightAngle = getAngleType(180);
+assertEquals(straightAngle, "Straight angle");
+
+// Reflex angles
+const reflexAngle = getAngleType(270);
+assertEquals(reflexAngle, "Reflex angle");
+
+const reflexAngleBoundary = getAngleType(359);
+assertEquals(reflexAngleBoundary, "Reflex angle");
+
+// Invalid angles
+const invalidAngleAboveRange = getAngleType(370);
+assertEquals(invalidAngleAboveRange, "Invalid angle");
+
+const invalidAngleBelowRange = getAngleType(-10);
+assertEquals(invalidAngleBelowRange, "Invalid angle");
+
+const invalidAngleZero = getAngleType(0);
+assertEquals(invalidAngleZero, "Invalid angle");
+
+const invalidAngleUpperBoundary = getAngleType(360);
+assertEquals(invalidAngleUpperBoundary, "Invalid angle");

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

@@ -12,6 +12,15 @@
 
 function isProperFraction(numerator, denominator) {
  // TODO: Implement this function
+ if (denominator === 0){
+ return false;
+ }
+ if(Math.abs(numerator) < Math.abs(denominator)){
+ return true;
+ }
+ else{
+ return false;
+ }
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -25,9 +34,28 @@ function assertEquals(actualOutput, targetOutput) {
  `Expected ${actualOutput} to equal ${targetOutput}`
  );
 }
-
 // TODO: Write tests to cover all cases.
 // What combinations of numerators and denominators should you test?
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+assertEquals(isProperFraction(5, 5), false);
+assertEquals(isProperFraction(2, 4), true);
+assertEquals(isProperFraction(0, 9), true);
+assertEquals(isProperFraction(6, 3), false);
+assertEquals(isProperFraction(10,4), false);
+assertEquals(isProperFraction(7, 0), false);
+assertEquals(isProperFraction(15, 30), true);
+assertEquals(isProperFraction(-7, 30), true);
+assertEquals(isProperFraction(-9, 10), true);
+assertEquals(isProperFraction(-5, -5), false);
+assertEquals(isProperFraction(-1, 0), false);
+assertEquals(isProperFraction(-1, -5), true);
+assertEquals(isProperFraction(1, -5), true);
+assertEquals(isProperFraction(0, 0), false);
+assertEquals(isProperFraction(-1, 2), true);
+assertEquals(isProperFraction(1, -2), true);
+assertEquals(isProperFraction(-1, -2), true);
+assertEquals(isProperFraction(-2, 1), false);
+assertEquals(isProperFraction(2, -1), false);
+assertEquals(isProperFraction(-2, -1), false);

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

@@ -23,6 +23,25 @@
 
 function getCardValue(card) {
  // TODO: Implement this function
+ if(card=="A♠" || card=="A♥" || card=="A♦" || card == "A♣"){
+ return 11;
+ }
+ if(card=="J♠" || card=="J♥" || card=="J♦" || card == "J♣" ||
+ card=="Q♠" || card=="Q♥" || card=="Q♦" || card == "Q♣" ||
+ card=="K♠" || card=="K♥" || card=="K♦" || card == "K♣"
+ ){
+ return 10;
+ }
+
+ const rank =card.slice(0,-1);
+ const suit = card.slice(-1);
+ const validRanks = ["2", "3", "4", "5", "6", "7", "8", "9", "10"];
+ const validSuits = ["♠", "♥", "♦", "♣"];
+ if(validRanks.includes(rank) && validSuits.includes(suit)){
+ return Number(rank);
+ }
+ throw new Error("Invalid card");
+
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -40,7 +59,12 @@ function assertEquals(actualOutput, targetOutput) {
 // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
 // Examples:
 assertEquals(getCardValue("9♠"), 9);
-
+assertEquals(getCardValue("K♥"), 10);
+assertEquals(getCardValue("J♣"), 10);
+assertEquals(getCardValue("A♦"), 11);
+assertEquals(getCardValue("Q♦"), 10);
+assertEquals(getCardValue("10♠"), 10);
+assertEquals(getCardValue("4♠"), 4);
 // Handling invalid cards
 try {
  getCardValue("invalid");
@@ -50,5 +74,69 @@ try {
 } catch (e) {
  console.log("Error thrown for invalid card 🎉");
 }
-
 // What other invalid card cases can you think of?
+try {
+ getCardValue("11♠");
+
+ // 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 🎉");
+}
+try {
+ getCardValue("0");
+
+ // 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 🎉");
+}
+try {
+ getCardValue("-8♦");
+
+ // 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 🎉");
+}
+try {
+ getCardValue("a♣");
+
+ // 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 🎉");
+}
+try {
+ getCardValue("0x02♠");
+ console.error("Error was not thrown for 0x02♠ 😢");
+} catch (e) {
+ console.log("Error thrown for 0x02♠ 🎉");
+}
+
+try {
+ getCardValue("2.1♠");
+ console.error("Error was not thrown for 2.1♠ 😢");
+} catch (e) {
+ console.log("Error thrown for 2.1♠ 🎉");
+}
+
+try {
+ getCardValue("0002♠");
+ console.error("Error was not thrown for 0002♠ 😢");
+} catch (e) {
+ console.log("Error thrown for 0002♠ 🎉");
+}
+
+try {
+ getCardValue("KX");
+ console.error("Error was not thrown for invalid suit 😢");
+} catch (e) {
+ console.log("Error thrown for invalid suit 🎉");
+}
+try {
+ getCardValue("5X");
+ console.error("Error was not thrown for invalid suit 😢");
+} catch (e) {
+ console.log("Error thrown for invalid suit 🎉");
+}

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

@@ -11,10 +11,41 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
  expect(getAngleType(1)).toEqual("Acute angle");
  expect(getAngleType(45)).toEqual("Acute angle");
  expect(getAngleType(89)).toEqual("Acute angle");
+ expect(getAngleType(75)).toEqual("Acute angle");
 });
 
 // Case 2: Right angle
-// Case 3: Obtuse angles
+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 acute angles, including boundary cases
+ expect(getAngleType(120)).toEqual("Obtuse angle");
+ expect(getAngleType(91)).toEqual("Obtuse angle");
+ expect(getAngleType(179)).toEqual("Obtuse angle");
+ expect(getAngleType(145)).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 acute angles, including boundary cases
+ expect(getAngleType(270)).toEqual("Reflex angle");
+ expect(getAngleType(359)).toEqual("Reflex angle");
+ expect(getAngleType(181)).toEqual("Reflex angle");
+});
 // Case 6: Invalid angles
+test("should return 'Invalid angle' when angle is <= 0 or >= 360", () => {
+ // Test various acute angles, including boundary cases
+ expect(getAngleType(-10)).toEqual("Invalid angle");
+ expect(getAngleType(360)).toEqual("Invalid angle");
+ expect(getAngleType(370)).toEqual("Invalid angle");
+ expect(getAngleType(0)).toEqual("Invalid angle");
+});

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

@@ -4,7 +4,44 @@ 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.
 
-// Special case: numerator is zero
-test(`should return false when denominator is zero`, () => {
+// 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);
 });
+
+// Proper fractions with positive values
+test("should return true when the absolute value of the numerator is less than the absolute value of the denominator", () => {
+ expect(isProperFraction(1, 2)).toEqual(true);
+ expect(isProperFraction(2, 4)).toEqual(true);
+ expect(isProperFraction(15, 30)).toEqual(true);
+});
+
+// Numerator is zero
+test("should return true when numerator is zero and denominator is non-zero", () => {
+ expect(isProperFraction(0, 9)).toEqual(true);
+ expect(isProperFraction(0, -9)).toEqual(true);
+});
+
+// Equal numerator and denominator
+test("should return false when numerator and denominator have equal absolute values", () => {
+ expect(isProperFraction(5, 5)).toEqual(false);
+ expect(isProperFraction(-5, -5)).toEqual(false);
+});
+
+// Negative values that form proper fractions
+test("should return true for negative values when the absolute numerator is less than the absolute denominator", () => {
+ expect(isProperFraction(-1, 2)).toEqual(true);
+ expect(isProperFraction(1, -2)).toEqual(true);
+ expect(isProperFraction(-1, -2)).toEqual(true);
+});
+
+// Positive and negative values that do not form proper fractions
+test("should return false when the absolute numerator is greater than or equal to the absolute denominator", () => {
+ expect(isProperFraction(-2, 1)).toEqual(false);
+ expect(isProperFraction(2, -1)).toEqual(false);
+ expect(isProperFraction(-2, -1)).toEqual(false);
+ expect(isProperFraction(6, 3)).toEqual(false);
+ expect(isProperFraction(10, 4)).toEqual(false);
+});

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

@@ -9,12 +9,30 @@ test(`Should return 11 when given an ace card`, () => {
  expect(getCardValue("A♠")).toEqual(11);
 });
 
-// Suggestion: Group the remaining test data into these categories:
-// Number Cards (2-10)
-// Face Cards (J, Q, K)
-// Invalid Cards
+// Case 2: 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);
+});
 
-// 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
+// Case 3: Number cards (2-10)
+test("should return the numeric value for number cards", () => {
+ expect(getCardValue("4♠")).toEqual(4);
+ expect(getCardValue("9♠")).toEqual(9);
+ expect(getCardValue("10♠")).toEqual(10);
+});
 
+// Case 4: Invalid cards
+test("should throw an error for invalid cards", () => {
+ expect(() => getCardValue("invalid")).toThrow();
+ expect(() => getCardValue("11♠")).toThrow();
+ expect(() => getCardValue("0")).toThrow();
+ expect(() => getCardValue("-8♦")).toThrow();
+ expect(() => getCardValue("a♣")).toThrow();
+ expect(() => getCardValue("KX")).toThrow();
+ expect(() => getCardValue("5X")).toThrow();
+ expect(() => getCardValue("0x02♠")).toThrow();
+ expect(() => getCardValue("2.1♠")).toThrow();
+ expect(() => getCardValue("0002♠")).toThrow();
+});