ITPJAN|SARAAMIRI|Module-structuring-and-testing-data|sprint3|week3

Sprint-3/1-key-implement/1-get-angle-type.js

@@ -10,8 +10,23 @@
 function getAngleType(angle) {
    if (angle === 90) return "Right angle";
    // read to the end, complete line 36, then pass your test here
+
+  // Case 2: Acute angle (less than 90 degrees)
+  if (angle < 90) return "Acute angle";
+
+  // Case 3: Obtuse angle (greater than 90 but less than 180 degrees)
+  if (angle > 90 && angle < 180) return "Obtuse angle";
+
+  // Case 4: Straight angle (exactly 180 degrees)
+  if (angle === 180) return "Straight angle";
+
+  // Case 5: Reflex angle (greater than 180 but less than 360 degrees)
+  if (angle > 180 && angle < 360) return "Reflex angle";
 }
 
+
+
+
 // we're going to use this helper function to make our assertions easier to read
 // if the actual output matches the target output, the test will pass
 function assertEquals(actualOutput, targetOutput) {
@@ -53,4 +68,11 @@ const obtuse = getAngleType(120);
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
-// ====> write your test here, and then add a line to pass the test in the function above
+// ====> write your test here, and then add a line to pass the test in the function above
+
+// Now we run the tests:
+assertEquals(getAngleType(90), "Right angle");  // Expected to pass
+assertEquals(getAngleType(45), "Acute angle");  // Expected to pass
+assertEquals(getAngleType(120), "Obtuse angle");  // Expected to pass
+assertEquals(getAngleType(180), "Straight angle");  // Expected to pass
+assertEquals(getAngleType(270), "Reflex angle");  // Expected to pass

Sprint-3/1-key-implement/2-is-proper-fraction.js

@@ -8,9 +8,16 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
+  // Handle cases where the denominator is zero or less
+  if (denominator <= 0) {
+      throw new Error('Denominator must be greater than zero');
+  }
+
+  // Proper fraction if absolute value of numerator is less than denominator
+  return Math.abs(numerator) < Math.abs(denominator);
 }
 
+
 // here's our helper again
 function assertEquals(actualOutput, targetOutput) {
   console.assert(
@@ -40,13 +47,17 @@ assertEquals(improperFraction, false);
 // target output: true
 // Explanation: The fraction -4/7 is a proper fraction because the absolute value of the numerator (4) is less than the denominator (7). The function should return true.
 const negativeFraction = isProperFraction(-4, 7);
+assertEquals(negativeFraction, true);
+
 // ====> complete with your assertion
 
 // Equal Numerator and Denominator check:
 // Input: numerator = 3, denominator = 3
 // target output: false
 // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
 const equalFraction = isProperFraction(3, 3);
+assertEquals(equalFraction, false);
+
 // ====> complete with your assertion
 
 // Stretch:

Sprint-3/1-key-implement/3-get-card-value.js

@@ -7,9 +7,6 @@
 // complete the rest of the tests and cases
 // write one test at a time, and make it pass, build your solution up methodically
 // just make one change at a time -- don't rush -- programmers are deep and careful thinkers
-function getCardValue(card) {
-    if (rank === "A") return 11;
-}
 
 // You need to write assertions for your function to check it works in different cases
 // we're going to use this helper function to make our assertions easier to read
@@ -24,8 +21,7 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Given a card string in the format "A♠" (representing a card in blackjack - the last character will always be an emoji for a suit, and all characters before will be a number 2-10, or one letter of J, Q, K, A),
 // When the function getCardValue is called with this card string as input,
-// Then it should return the numerical card value
-const aceofSpades = getCardValue("A♠");
+// Then it should return the numerical card valueconst aceofSpades = getCardValue("A♠");
 assertEquals(aceofSpades, 11);
 
 // Handle Number Cards (2-10):
@@ -49,3 +45,39 @@ const fiveofHearts = getCardValue("5♥");
 // Given a card with an invalid rank (neither a number nor a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+
+function getCardValue(card) {
+  const rank = card.slice(0, -1); // Extract the rank (everything except the suit emoji)
+
+  if (rank === "A") return 11;
+  if (rank === "J" || rank === "Q" || rank === "K" || rank === "10") return 10;
+  if (parseInt(rank) >= 2 && parseInt(rank) <= 9) return parseInt(rank);
+
+  throw new Error("Invalid card rank");
+}
+
+
+// Test for Ace
+const aceofSpades = getCardValue("A♠");
+assertEquals(aceofSpades, 11);
+
+// Test for number cards
+const fiveofHearts = getCardValue("5♥");
+assertEquals(fiveofHearts, 5);
+
+// Test for face cards (J, Q, K)
+const jackOfSpades = getCardValue("J♠");
+assertEquals(jackOfSpades, 10);
+
+const queenOfSpades = getCardValue("Q♠");
+assertEquals(queenOfSpades, 10);
+
+const kingOfSpades = getCardValue("K♠");
+assertEquals(kingOfSpades, 10);
+
+// Test for invalid card
+try {
+  getCardValue("X♠");
+} catch (error) {
+  assertEquals(error.message, "Invalid card rank");
+}

Sprint-3/2-mandatory-rewrite/1-get-angle-type.js

@@ -1,7 +1,17 @@
 function getAngleType(angle) {
   if (angle === 90) return "Right angle";
   // replace with your completed function from key-implement
+// Case 2: Acute angle (less than 90 degrees)
+if (angle < 90) return "Acute angle";
+
+// Case 3: Obtuse angle (greater than 90 but less than 180 degrees)
+if (angle > 90 && angle < 180) return "Obtuse angle";
 
+// Case 4: Straight angle (exactly 180 degrees)
+if (angle === 180) return "Straight angle";
+
+// Case 5: Reflex angle (greater than 180 but less than 360 degrees)
+if (angle > 180 && angle < 360) return "Reflex angle";
 }
 
 

Sprint-3/2-mandatory-rewrite/1-get-angle-type.test.js

@@ -10,15 +10,28 @@ test("should identify right angle (90°)", () => {
 // Case 2: Identify Acute Angles:
 // When the angle is less than 90 degrees,
 // Then the function should return "Acute angle"
+test("should identify acute angle (less than 90°)", () => {
+  expect(getAngleType(45)).toEqual("Acute angle");
+});
 
 // Case 3: Identify Obtuse Angles:
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
+test("should identify obtuse angle (greater than 90° but less than 180°)", () => {
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+});
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
+test("should identify straight angle (180°)", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
+
 
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
+test("should identify reflex angle (greater than 180° but less than 360°)", () => {
+  expect(getAngleType(250)).toEqual("Reflex angle");
+});

Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.js

@@ -1,6 +1,17 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
-}
-
-module.exports = isProperFraction;
+    // Handle case where the denominator is zero
+    if (denominator === 0) {
+      throw new Error('Denominator cannot be zero');
+    }
+
+    // A proper fraction is one where the absolute value of the numerator is less than the denominator
+    if (Math.abs(numerator) < Math.abs(denominator)) {
+      return true;
+    }
+
+    // Otherwise, it's an improper fraction
+    return false;
+  }
+
+  module.exports = isProperFraction;
+

Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.test.js

@@ -1,11 +1,16 @@
 const isProperFraction = require("./2-is-proper-fraction");
-
-test("should return true for a proper fraction", () => {
-  expect(isProperFraction(2, 3)).toEqual(true);
+test("Identifies Proper Fraction", () => {
+  expect(isProperFraction(2, 3)).toBe(true);
 });
 
-// Case 2: Identify Improper Fractions:
+test("Identifies Improper Fraction", () => {
+  expect(isProperFraction(5, 2)).toBe(false);
+});
 
-// Case 3: Identify Negative Fractions:
+test("Identifies Negative Proper Fraction", () => {
+  expect(isProperFraction(-4, 7)).toBe(true);
+});
 
-// Case 4: Identify Equal Numerator and Denominator:
+test("Identifies Equal Numerator and Denominator as Improper", () => {
+  expect(isProperFraction(3, 3)).toBe(false);
+});

Sprint-3/2-mandatory-rewrite/3-get-card-value.js

@@ -1,5 +1,12 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
-}
+
+        const rank = card.slice(0, -1); // Extract the rank (everything except the suit emoji)
+
+        if (rank === "A") return 11;
+        if (rank === "J" || rank === "Q" || rank === "K" || rank === "10") return 10;
+        if (parseInt(rank) >= 2 && parseInt(rank) <= 9) return parseInt(rank);
+
+        throw new Error("Invalid card rank");
+      }
+
 module.exports = getCardValue;

Sprint-3/2-mandatory-rewrite/3-get-card-value.test.js

@@ -3,9 +3,27 @@ const getCardValue = require("./3-get-card-value");
 test("should return 11 for Ace of Spades", () => {
     const aceofSpades = getCardValue("A♠");
     expect(aceofSpades).toEqual(11);
-    });
+    })
 
-// Case 2: Handle Number Cards (2-10):
-// Case 3: Handle Face Cards (J, Q, K):
-// Case 4: Handle Ace (A):
-// Case 5: Handle Invalid Cards:
+// Case 2: Handle Number Cards (2-10)
+test("should return numeric value for number cards", () => {
+  expect(getCardValue("5♥")).toBe(5);
+  expect(getCardValue("9♦")).toBe(9);
+  expect(getCardValue("2♣")).toBe(2);
+  expect(getCardValue("10♦")).toBe(10);
+});
+
+// Case 3: Handle Face Cards (J, Q, K)
+test("should return 10 for face cards (J, Q, K)", () => {
+  expect(getCardValue("J♣")).toBe(10);
+  expect(getCardValue("Q♥")).toBe(10);
+  expect(getCardValue("K♠")).toBe(10);
+});
+
+// Case 4: Handle Invalid Cards
+test("should throw an error for invalid card ranks", () => {
+  expect(() => getCardValue("Z♣")).toThrow("Invalid card rank");
+  expect(() => getCardValue("1♦")).toThrow("Invalid card rank");
+  expect(() => getCardValue("X♥")).toThrow("Invalid card rank");
+  expect(() => getCardValue("")).toThrow("Invalid card rank");
+});

Sprint-3/3-mandatory-practice/implement/count.js

@@ -1,5 +1,16 @@
 function countChar(stringOfCharacters, findCharacter) {
-    return 5
-}
+
+        let count = 0;
+        // Loop through the string and count occurrences of `findCharacter`
+        for (let i = 0; i < stringOfCharacters.length; i++) {
+          if (stringOfCharacters[i] === findCharacter) {
+            count++;
+          }
+        }
+        return count;
+      }
+
+
+
 
 module.exports = countChar;

Sprint-3/3-mandatory-practice/implement/count.test.js

@@ -22,3 +22,9 @@ test("should count multiple occurrences of a character", () => {
 // And a character char that does not exist within the case-sensitive str,
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of the char were found in the case-sensitive str.
+test("should return 0 if the character does not exist", () => {
+  const str = "hello";
+  const char = "z";
+  const count = countChar(str, char);
+  expect(count).toEqual(0); // 'z' does not exist in "hello"
+});

Sprint-3/3-mandatory-practice/implement/get-ordinal-number.js

@@ -1,5 +1,25 @@
-function getOrdinalNumber(num) {
- return "1st";
+function getOrdinalNumber(num) { // Convert the number to a string to easily access its last digits
+    const lastDigit = num % 10;
+    const lastTwoDigits = num % 100;
+
+    // Handle special cases for numbers 11-13
+    if (lastTwoDigits >= 11 && lastTwoDigits <= 13) {
+      return `${num}th`;
+    }
+
+    // Handle normal cases for 1st, 2nd, 3rd, etc.
+    switch (lastDigit) {
+      case 1:
+        return `${num}st`;
+      case 2:
+        return `${num}nd`;
+      case 3:
+        return `${num}rd`;
+      default:
+        return `${num}th`;
+    }
+
+
 }
 
 module.exports = getOrdinalNumber;