Manchester | 26-ITP-Jan | Mehroz Munir | Sprint 3 | Implement and Rewrite tests

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

@@ -14,8 +14,23 @@
 // After you have implemented the function, write tests to cover all the cases, and
 // execute the code to ensure all tests pass.
 
+//Question:
+// What about 360 angle that is a valid angle and called complete angle should I include that as well?
 function getAngleType(angle) {
   // TODO: Implement this function
+  if (angle <= 0 || angle >= 360) {
+    return "Invalid angle";
+  } else if (angle < 90) {
+    return "Acute angle";
+  } else if (angle === 90) {
+    return "Right angle";
+  } else if (angle < 180) {
+    return "Obtuse angle";
+  } else if (angle === 180) {
+    return "Straight angle";
+  } else if (angle < 360) {
+    return "Reflex angle";
+  }
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -33,5 +48,27 @@ 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");
+let angle = getAngleType(0);
+assertEquals(angle, "Invalid angle");
+angle = getAngleType(-78);
+assertEquals(angle, "Invalid angle");
+angle = getAngleType(1);
+assertEquals(angle, "Acute angle");
+angle = getAngleType(90);
+assertEquals(angle, "Right angle");
+angle = getAngleType(91);
+assertEquals(angle, "Obtuse angle");
+angle = getAngleType(180);
+assertEquals(angle, "Straight angle");
+angle = getAngleType(181);
+assertEquals(angle, "Reflex angle");
+angle = getAngleType(360);
+assertEquals(angle, "Invalid angle");
+angle = getAngleType(45671);
+assertEquals(angle, "Invalid angle");
+angle = getAngleType(0.5);
+assertEquals(angle, "Acute angle");
+angle = getAngleType(90.0098);
+assertEquals(angle, "Obtuse angle");
+angle = getAngleType(-0.0001);
+assertEquals(angle, "Invalid angle");

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

@@ -12,6 +12,8 @@
 
 function isProperFraction(numerator, denominator) {
   // TODO: Implement this function
+  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.
@@ -31,3 +33,12 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+assertEquals(isProperFraction(2, 2), false);
+assertEquals(isProperFraction(3, 2), false);
+assertEquals(isProperFraction(0, 2), true);
+assertEquals(isProperFraction(-1, 2), true);
+assertEquals(isProperFraction(-1, -2), true);
+assertEquals(isProperFraction(1, -2), true);
+assertEquals(isProperFraction(0, -1), true);
+assertEquals(isProperFraction(100, -100), false);
+assertEquals(isProperFraction(-100, 100), false);

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

@@ -22,7 +22,34 @@
 // execute the code to ensure all tests pass.
 
 function getCardValue(card) {
-  // TODO: Implement this function
+  // Handling invalid cards
+  const rank = card.slice(0, -1); //rank of the card is everything except the last character of card string
+  const suit = card.slice(-1); // suit is the last character of the card string
+  if (!isValidCard(rank, suit)) throw new Error("Invalid Card");
+  if (rank === "J" || rank === "Q" || rank == "K") return 10;
+  else if (rank == "A") return 11;
+  else return Number(rank);
+}
+
+function isValidCard(rank, suit) {
+  const ranks = [
+    "A",
+    "2",
+    "3",
+    "4",
+    "5",
+    "6",
+    "7",
+    "8",
+    "9",
+    "10",
+    "J",
+    "Q",
+    "K",
+  ];
+  const suits = ["♠", "♥", "♦", "♣"];
+  if (ranks.includes(rank) && suits.includes(suit)) return true;
+  else return false;
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -37,16 +64,29 @@ function assertEquals(actualOutput, targetOutput) {
   );
 }
 
+function assertThrows(fnGetCardValue) {
+  try {
+    fnGetCardValue(); // run the function
+    console.assert(false, "Expected function to throw an error");
+  } catch (err) {
+    console.assert(err instanceof Error, "Expected an Error to be thrown");
+  }
+}
+
 // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
 // Examples:
 assertEquals(getCardValue("9♠"), 9);
+assertEquals(getCardValue("10♠"), 10);
+assertEquals(getCardValue("Q♠"), 10);
+assertEquals(getCardValue("A♣"), 11);
+assertEquals(getCardValue("2♠"), 2);
+assertEquals(getCardValue("J♦"), 10);
+assertEquals(getCardValue("K♠"), 10);
 
-// Handling invalid cards
-try {
-  getCardValue("invalid");
-
-  // This line will not be reached if an error is thrown as expected
-  console.error("Error was not thrown for invalid card");
-} catch (e) {}
-
-// What other invalid card cases can you think of?
+// using function wrapper in the below lines of code so instead of passing teh result of function I can pass the function here,
+// and it is being called in try block of assertThrows function
+assertThrows(() => getCardValue("Invalid"));
+assertThrows(() => getCardValue("1Q"));
+assertThrows(() => getCardValue("-10♦"));
+assertThrows(() => getCardValue("♦K"));
+assertThrows(() => getCardValue("Q♦♦"));

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

@@ -14,7 +14,40 @@ 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 acute angles, including boundary cases
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(112)).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 acute angles, including boundary cases
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(223)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
+
 // Case 6: Invalid angles
+test(`should return "Invalid angle" when angle >= 360 or angle <= 0)`, () => {
+  // Test various acute angles, including boundary cases
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(-2292)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(365)).toEqual("Invalid angle");
+  expect(getAngleType(383949)).toEqual("Invalid angle");
+});

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

@@ -4,7 +4,40 @@ 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
+//Case 1: 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);
+  expect(isProperFraction(3848473, 0)).toEqual(false);
+});
+
+//Case 2: numerator is 0 but denominator is not 0
+test(`should return true when numerator is zero but denominator is not 0`, () => {
+  expect(isProperFraction(0, 1)).toEqual(true);
+  expect(isProperFraction(0, -100)).toEqual(true);
+  expect(isProperFraction(0, 1000)).toEqual(true);
+});
+
+//Case 3: Absolute values of numerator and denominator are equal
+test(`should return false when numerator and denominator have equal absolute values`, () => {
+  expect(isProperFraction(1, 1)).toEqual(false);
+  expect(isProperFraction(-181, 181)).toEqual(false);
+  expect(isProperFraction(839984, 839984)).toEqual(false);
+  expect(isProperFraction(-1211, -1211)).toEqual(false);
+});
+
+//Case 4: Absolute value of numerator is less than absolute value of denominator
+test(`should return true when absolute numerator is less than absolute denominator`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+  expect(isProperFraction(1, -2)).toEqual(true);
+  expect(isProperFraction(-2, -6)).toEqual(true);
+  expect(isProperFraction(-0, -1000)).toEqual(true);
+});
+
+//Case 5: Absolute value of numerator is greater than absolute value of denominator
+test(`should return false when absolute numerator is greater than absolute denominator`, () => {
+  expect(isProperFraction(-6, -2)).toEqual(false);
+  expect(isProperFraction(5, 3)).toEqual(false);
+  expect(isProperFraction(-25, 3)).toEqual(false);
 });

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

@@ -9,6 +9,48 @@ test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
+// Case 2: Number Cards (2-10)
+test(`Should return number when given a number card`, () => {
+  expect(getCardValue("2♠")).toEqual(2);
+  expect(getCardValue("10♠")).toEqual(10);
+  expect(getCardValue("5♠")).toEqual(5);
+});
+
+// Case 3: Face Cards (J, Q, K)
+test(`Should return 10 when given a face card`, () => {
+  expect(getCardValue("Q♠")).toEqual(10);
+  expect(getCardValue("K♠")).toEqual(10);
+  expect(getCardValue("J♠")).toEqual(10);
+});
+
+// Case 4: Invalid Cards
+test(`Should return Error when given an invalid card`, () => {
+  expect(() => {
+    getCardValue("Aas♠");
+  }).toThrow("Invalid Card");
+  expect(() => {
+    getCardValue("What");
+  }).toThrow("Invalid Card");
+  expect(() => {
+    getCardValue("Q10");
+  }).toThrow();
+  expect(() => {
+    getCardValue("11");
+  }).toThrow("Invalid Card");
+  expect(() => {
+    getCardValue("♠11");
+  }).toThrow("Invalid Card");
+  expect(() => {
+    getCardValue("10*");
+  }).toThrow("Invalid Card");
+  expect(() => {
+    getCardValue("Q_");
+  }).toThrow("Invalid Card");
+  expect(() => {
+    getCardValue("A10");
+  }).toThrow("Invalid Card");
+});
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
@@ -17,4 +59,3 @@ 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
-