London | 26-ITP-May | Russom Gebremeskel | Sprint 3 | 1 Implement and Rewrite Tests

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

@@ -16,6 +16,19 @@
 
 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.

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

@@ -12,6 +12,7 @@
 
 function isProperFraction(numerator, denominator) {
   // TODO: Implement this function
+  return numerator > 0 && numerator < denominator; // expression to compare proper fraction
 }
 
 // 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

@@ -23,6 +23,41 @@
 
 function getCardValue(card) {
   // TODO: Implement this function
+   if (typeof card !== "string") {
+     // Here the type of values are checked whether they are string.
+         throw new Error(" Invalid card");
+   }
+
+  const validRanks = [ // An array of ranks are created here
+    "A",
+    "2",
+    "3",
+    "4",
+    "5",
+    "6",
+    "7",
+    "8",
+    "9",
+    "10",
+    "J",
+    "Q",
+    "K",
+  ];
+  const validSuits = ["♠", "♥", "♦", "♣"]; // An array of suits are created here.
+  const suit = card.slice(-1);
+  const rank = card.slice(0, -1);
+
+  if (!validRanks.includes(rank) || !validSuits.includes(suit)) { //Here the values that are stored in rank and suit are checked whether they are valid are inside the validRank and validSuits arrays.
+    throw new Error("Invalid card");
+  }
+
+  if (rank === "A") { // Here the code is testing wether the rank is an Ace.
+    return 11;
+  } else if (rank === "J" || rank === "Q" || rank === "K") { // Here the ranks are checked if they are J, Q or K and it returns 10
+    return 10;
+  } else { // Lastly any rank between 2 and 10 get checked and the same number of value returned.
+    return Number(rank);
+  }
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.

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

@@ -14,7 +14,38 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when (angle === 90)`, () => {
+  // Test Right angles.
+  expect(getAngleType(90)).toEqual("Right angle");
+});
+
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (angle > 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 Obtuse angles.
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
+
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (angle > 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 that are less that are negative number, 0 and numbers that are above 360 degrees.
+  expect(getAngleType(-9)).toEqual("Invalid angle");
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(450)).toEqual("Invalid angle");
+});

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

@@ -4,7 +4,74 @@ 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`, () => {
+// Special case 1: numerator is zero
+test(`should return false when numerator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+// Special case 2: denominator zero
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(0, 1)).toEqual(false);
+});
+
+// Special case 3: both zero
+test(`should return false when both are zero`, () => {
+  expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+// Special case 4: numerator is a negative number
+test(`should return false when numerator is negative`, () => {
+  expect(isProperFraction(-3, 4)).toEqual(false);
+});
+
+// Special case 5: denominator is a negative number
+test(`should return false when denominator is negative`, () => {
+  expect(isProperFraction(3, -4)).toEqual(false);
+});
+
+// Special case 6: numerator -3 and denominator -4 
+test(`should return false when numerator -3 and denominator -4`, () => {
+  expect(isProperFraction(-3, -4)).toEqual(false);
+});
+
+// Special case 7: negative equal values 
+test(`should return false when both negative equal values`, () => {
+  expect(isProperFraction(-6, -6)).toEqual(false);
+});
+
+// Special case 8: equal values 
+test(`should return false when both are equal`, () => {
+  expect(isProperFraction(5, 5)).toEqual(false);
+});
+
+// Special case 9: numerator is a negative number
+test(`should return false when numerator is negative`, () => {
+  expect(isProperFraction(-3, 4)).toEqual(false);
+});
+
+// Non special cases
+
+// Case ase 10: numerator 1 denominator 2
+test(`should return false when numerator 1 denominator 2`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+});
+
+// Case ase 11: numerator 3 denominator 4
+test(`should return false when numerator 3 denominator 4`, () => {
+  expect(isProperFraction(3, 4)).toEqual(true);
+});
+
+// Case ase 12: numerator 5 denominator 8 
+test(`should return false when numerator 5 denominator 8`, () => {
+  expect(isProperFraction(5, 8)).toEqual(true);
+});
+
+// Case ase 13: numerator 7 denominator 4 
+test(`should return false when 7 denominator 4`, () => {
+  expect(isProperFraction(7, 4)).toEqual(false);
+});
+
+// Case ase 14: numerator 9 denominator 5 
+test(`should return false when numerator 9 denominator 5`, () => {
+  expect(isProperFraction(9, 5)).toEqual(false);
+});

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

@@ -9,6 +9,34 @@ test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
+// Case 2: Face Cards (J, Q, K)
+test(`Should return 10 when given a face card`, () => {
+  expect(getCardValue("K♦")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("J♣")).toEqual(10);
+});
+
+// Case 3: Number Cards (2-10)
+test(`Should return the card value when given 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 return invalid cards when given a face card`, () => {
+  expect(() => getCardValue("1♦")).toThrow();
+  expect(() => getCardValue("10")).toThrow();
+  expect(() => getCardValue("AZ")).toThrow();
+  expect(() => getCardValue("")).toThrow();
+});
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
@@ -17,4 +45,3 @@ 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
-