London | 26-ITP-Jan | Oussama Mouggal | sprint 3 | implement-and-rewrite-tests

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

@@ -16,6 +16,22 @@
 
 function getAngleType(angle) {
   // TODO: Implement this function
+  if ( angle <=0 || angle >= 360 ) {
+    return "Invalid angle";
+  }
+  if ( 0 < angle && angle < 90 ){
+    return "Acute angle";
+  }
+  if (angle === 90){
+    return "Right angle";
+  }
+  if ( 90 < angle && angle < 180){
+    return "Obtuse angle";
+  }
+  if (angle === 180){
+    return "Straight angle";
+  }
+  return "Reflex angle";
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -35,3 +51,13 @@ 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 zero = getAngleType(0);
+assertEquals(zero, "Invalid angle");

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

@@ -11,7 +11,7 @@
 // execute the code to ensure all tests pass.
 
 function isProperFraction(numerator, denominator) {
-  // TODO: Implement this function
+  return numerator >= 0 && denominator > 0 && numerator < denominator;
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -31,3 +31,26 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+
+// Proper fractions - should return true
+assertEquals(isProperFraction(3, 4), true);
+assertEquals(isProperFraction(1, 5), true);
+assertEquals(isProperFraction(2, 3), true);
+assertEquals(isProperFraction(5, 8), true);
+assertEquals(isProperFraction(1, 100), true);
+
+// Improper fractions - should return false
+assertEquals(isProperFraction(2, 1), false);
+assertEquals(isProperFraction(5, 3), false);
+assertEquals(isProperFraction(4, 4), false);
+assertEquals(isProperFraction(10, 5), false);
+assertEquals(isProperFraction(100, 99), false);
+
+// Edge cases with zero numerator - should return true
+assertEquals(isProperFraction(0, 5), true);
+assertEquals(isProperFraction(0, 1), true);
+
+// Negative numbers - should return false
+assertEquals(isProperFraction(-1, 2), false);
+assertEquals(isProperFraction(1, -2), false);
+assertEquals(isProperFraction(-1, -2), false);

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

@@ -22,31 +22,135 @@
 // execute the code to ensure all tests pass.
 
 function getCardValue(card) {
-  // TODO: Implement this function
+  // Define valid ranks and suits
+  const validRanks = ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"];
+  const validSuits = ["♠", "♥", "♦", "♣"];
+
+  // Check if card is a valid string
+  if (typeof card !== 'string' || card.length === 0) {
+    throw new Error('Invalid card');
+  }
+
+  // Extract suit (last character)
+  const suit = card[card.length - 1];
+
+  // Extract rank (everything except last character)
+  const rank = card.slice(0, -1);
+
+  // Validate suit and rank
+  if (!validSuits.includes(suit) || !validRanks.includes(rank)) {
+    throw new Error('Invalid card');
+  }
+
+  // Return value based on rank
+  if (rank === "A") {
+    return 11;
+  } else if (rank === "J" || rank === "Q" || rank === "K") {
+    return 10;
+  } else {
+    return parseInt(rank);
+  }
 }
 
 // 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;
 
-// Helper functions to make our assertions easier to read.
-function assertEquals(actualOutput, targetOutput) {
-  console.assert(
-    actualOutput === targetOutput,
-    `Expected ${actualOutput} to equal ${targetOutput}`
-  );
-}
+// Only run tests if this file is executed directly (not imported as a module)
+if (require.main === module) {
+  // Helper functions to make our assertions easier to read.
+  function assertEquals(actualOutput, targetOutput) {
+    console.assert(
+      actualOutput === targetOutput,
+      `Expected ${actualOutput} to equal ${targetOutput}`
+    );
+  }
+
+  // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
+
+// Test all Ace cards (should return 11)
+assertEquals(getCardValue("A♠"), 11);
+assertEquals(getCardValue("A♥"), 11);
+assertEquals(getCardValue("A♦"), 11);
+assertEquals(getCardValue("A♣"), 11);
+
+// Test all face cards (should return 10)
+assertEquals(getCardValue("J♠"), 10);
+assertEquals(getCardValue("J♥"), 10);
+assertEquals(getCardValue("J♦"), 10);
+assertEquals(getCardValue("J♣"), 10);
+assertEquals(getCardValue("Q♠"), 10);
+assertEquals(getCardValue("Q♥"), 10);
+assertEquals(getCardValue("Q♦"), 10);
+assertEquals(getCardValue("Q♣"), 10);
+assertEquals(getCardValue("K♠"), 10);
+assertEquals(getCardValue("K♥"), 10);
+assertEquals(getCardValue("K♦"), 10);
+assertEquals(getCardValue("K♣"), 10);
 
-// TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
-// Examples:
+// Test number cards (should return their numeric value)
+assertEquals(getCardValue("2♠"), 2);
+assertEquals(getCardValue("3♣"), 3);
+assertEquals(getCardValue("4♥"), 4);
+assertEquals(getCardValue("5♦"), 5);
+assertEquals(getCardValue("6♠"), 6);
+assertEquals(getCardValue("7♣"), 7);
+assertEquals(getCardValue("8♥"), 8);
 assertEquals(getCardValue("9♠"), 9);
+assertEquals(getCardValue("10♥"), 10);
 
-// Handling invalid cards
+// Handling invalid cards - generic invalid string
 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?
+// Card without suit
+try {
+  getCardValue("A");
+  console.error("Error was not thrown for card without suit");
+} catch (e) {}
+
+// Card without rank (just a suit)
+try {
+  getCardValue("♠");
+  console.error("Error was not thrown for card without rank");
+} catch (e) {}
+
+// Invalid rank
+try {
+  getCardValue("11♠");
+  console.error("Error was not thrown for invalid rank '11'");
+} catch (e) {}
+
+try {
+  getCardValue("X♠");
+  console.error("Error was not thrown for invalid rank 'X'");
+} catch (e) {}
+
+// Invalid suit
+try {
+  getCardValue("A♪");
+  console.error("Error was not thrown for invalid suit");
+} catch (e) {}
+
+try {
+  getCardValue("AH");
+  console.error("Error was not thrown for invalid suit 'H'");
+} catch (e) {}
+
+// Empty string
+try {
+  getCardValue("");
+  console.error("Error was not thrown for empty string");
+} catch (e) {}
+
+// Extra characters
+try {
+  getCardValue("A♠X");
+  console.error("Error was not thrown for extra characters");
+} catch (e) {}
+
+console.log("All tests completed!");
+
+} // End of: if (require.main === module)

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`, () => {
+  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`, () => {
+  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" for angles outside valid range`, () => {
+  // Test boundary and invalid cases
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(-90)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(361)).toEqual("Invalid angle");
+  expect(getAngleType(1000)).toEqual("Invalid angle");
+});

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

@@ -4,7 +4,43 @@ 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
+// Proper fractions - should return true
+test(`should return true for proper fractions (0 <= numerator < denominator)`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+  expect(isProperFraction(3, 4)).toEqual(true);
+  expect(isProperFraction(1, 5)).toEqual(true);
+  expect(isProperFraction(2, 3)).toEqual(true);
+  expect(isProperFraction(5, 8)).toEqual(true);
+  expect(isProperFraction(1, 100)).toEqual(true);
+  expect(isProperFraction(0, 5)).toEqual(true);
+});
+
+// Improper fractions - should return false
+test(`should return false for improper fractions (numerator >= denominator)`, () => {
+  expect(isProperFraction(2, 1)).toEqual(false);
+  expect(isProperFraction(5, 3)).toEqual(false);
+  expect(isProperFraction(4, 4)).toEqual(false);
+  expect(isProperFraction(10, 5)).toEqual(false);
+  expect(isProperFraction(100, 99)).toEqual(false);
+});
+
+// Edge cases with zero numerator - should return true
+test(`should return true when numerator is zero and denominator is positive`, () => {
+  expect(isProperFraction(0, 5)).toEqual(true);
+  expect(isProperFraction(0, 1)).toEqual(true);
+  expect(isProperFraction(0, 100)).toEqual(true);
+});
+
+// Special case: denominator is zero
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
+  expect(isProperFraction(5, 0)).toEqual(false);
+});
+
+// Negative numbers - should return false
+test(`should return false for negative numbers`, () => {
+  expect(isProperFraction(-1, 2)).toEqual(false);
+  expect(isProperFraction(1, -2)).toEqual(false);
+  expect(isProperFraction(-1, -2)).toEqual(false);
+  expect(isProperFraction(-5, -3)).toEqual(false);
 });