LONDON| MAY 2025 | HAKAN MURAT KAVUT | Module-Structuring-and-Testing-Data - Sprint 3

Sprint-1/3-mandatory-interpret/aaa.js

@@ -0,0 +1,14 @@
+for (let a = 1; a <= 9; a++) {
+  for (let b = 0; b <= 9; b++) {
+    for (let c = 1; c <= 9; c++) {
+      for (let d = 0; d <= 9; d++) {
+        let left = Math.pow(a, b) * Math.pow(c, d);
+        let right = parseInt(`${a}${b}${c}${d}`);
+
+        if (left === right) {
+          console.log(`Match found: (${a}^${b}) * (${c}^${d}) = ${left}`);
+        }
+      }
+    }
+  }
+}

Sprint-1/3-mandatory-interpret/codewars.js

@@ -0,0 +1,16 @@
+function transposeTwoStrings(array) {
+  let a = "";
+  let no = Math.max(array[0].length, array[1].length);
+  for (let i = 0; i < no; i++) {
+    if (i < array[0].length) {
+      a += array[0][i];
+    } else a += " ";
+    a += " ";
+    if (i < array[1].length) {
+      a += array[1][i];
+    } else a += " ";
+    if (i < array[1].length - 1 || i < array[0].length - 1) a += "\n";
+  }
+
+  return a;
+}

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

@@ -8,8 +8,12 @@
 // Then, write the next test! :) Go through this process until all the cases are implemented
 
 function getAngleType(angle) {
-   if (angle === 90) return "Right angle";
-   // read to the end, complete line 36, then pass your test here
+  if (angle === 90) return "Right angle";
+  if (angle === 45) return "Acute angle";
+  if (angle === 120) return "Obtuse angle";
+  if (angle === 180) return "Straight angle";
+  if (angle > 180 && angle <= 360) return "Reflex angle";
+  // read to the end, complete line 36, then pass your test here
 }
 
 // we're going to use this helper function to make our assertions easier to read
@@ -43,14 +47,21 @@ assertEquals(acute, "Acute angle");
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
 const obtuse = getAngleType(120);
+assertEquals(obtuse, "Obtuse angle");
 // ====> write your test here, and then add a line to pass the test in the function above
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
 // ====> write your test here, and then add a line to pass the test in the function above
+const straight = getAngleType(180);
+assertEquals(straight, "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"
-// ====> 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
+const reflex = getAngleType(181);
+assertEquals(reflex, "Reflex angle");
+const reflex2 = getAngleType(359);
+assertEquals(reflex2, "Reflex angle");

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

@@ -8,7 +8,9 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
+  if (Math.abs(numerator) < Math.abs(denominator)) return true;
+  if (Math.abs(numerator) > Math.abs(denominator)) return false;
+  if (Math.abs(numerator) === Math.abs(denominator)) return false;
 }
 
 // here's our helper again
@@ -41,13 +43,30 @@ assertEquals(improperFraction, false);
 // 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);
 // ====> complete with your assertion
+assertEquals(negativeFraction, true);
 
 // 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);
 // ====> complete with your assertion
+assertEquals(equalFraction, false);
 
 // Stretch:
 // What other scenarios could you test for?
+
+// Equal Numerator and Denominator check:
+// Input: numerator = 0, denominator = 5
+// target output: true
+// Explanation: The fraction 0/5 is a proper fraction, where the numerator is less than the denominator. The function should return true.
+const properFraction2 = isProperFraction(0, 10);
+assertEquals(properFraction2, true);
+
+// Negative Fraction check:
+// Input: numerator = 3, denominator = -6
+// target output: true
+// Explanation: The fraction 3/-5 is a negative fraction because the absolute value of the numerator (3) is less than the denominator (5). The function should return true.
+const negativeFraction2 = isProperFraction(3, -6);
+// ====> complete with your assertion
+assertEquals(negativeFraction2, true);

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

@@ -8,7 +8,11 @@
 // 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;
+  let rank = card[0];
+  if (rank === "A") return 11;
+  if (rank === "J" || rank === "Q" || rank === "K") return 10;
+  if (Number(card[0]) > 0 && Number(card[0]) < 11) return Number(card[0]);
+  return "Invalid card rank.";
 }
 
 // You need to write assertions for your function to check it works in different cases
@@ -33,19 +37,26 @@ assertEquals(aceofSpades, 11);
 // When the function is called with such a card,
 // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
 const fiveofHearts = getCardValue("5♥");
+assertEquals(fiveofHearts, 5);
 // ====> write your test here, and then add a line to pass the test in the function above
 
 // Handle Face Cards (J, Q, K):
 // Given a card with a rank of "10," "J," "Q," or "K",
 // When the function is called with such a card,
 // Then it should return the value 10, as these cards are worth 10 points each in blackjack.
+const faceofHearts = getCardValue("J♥");
+assertEquals(faceofHearts, 10);
 
 // Handle Ace (A):
 // Given a card with a rank of "A",
 // When the function is called with an Ace,
 // Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack.
+const aceofHearts = getCardValue("A♥");
+assertEquals(aceofHearts, 11);
 
 // Handle Invalid Cards:
 // 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."
+const invalidCard = getCardValue("C♥");
+assertEquals(invalidCard, "Invalid card rank.");

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

@@ -1,18 +1,13 @@
 function getAngleType(angle) {
   if (angle === 90) return "Right angle";
-  // replace with your completed function from key-implement
-
+  if (angle < 90) return "Acute angle";
+  if (angle > 90 && angle < 180) return "Obtuse angle";
+  if (angle === 180) return "Straight angle";
+  if (angle > 180 && angle < 360) return "Reflex angle";
 }
 
-
-
-
-
-
-
-
 // Don't get bogged down in this detail
 // Jest uses CommonJS module syntax by default as it's quite old
-// We will upgrade our approach to ES6 modules in the next course module, so for now 
+// We will upgrade our approach to ES6 modules in the next course module, so for now
 // we have just written the CommonJS module.exports syntax for you
-module.exports = getAngleType;
+module.exports = getAngleType;

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

@@ -10,15 +10,27 @@ 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 right angle (75°)", () => {
+  expect(getAngleType(75)).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 (x>90°)", () => {
+  expect(getAngleType(150)).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 (180°<x<360°)", () => {
+  expect(getAngleType(290)).toEqual("Reflex angle");
+});

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

@@ -1,6 +1,7 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
+    if (Math.abs(numerator) < Math.abs(denominator)) return true;
+    if (Math.abs(numerator) > Math.abs(denominator)) return true;
+    if (Math.abs(numerator) === Math.abs(denominator)) return true;
 }
 
 module.exports = isProperFraction;

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

@@ -5,7 +5,16 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
+test("should return true for a improper fraction", () => {
+  expect(isProperFraction(5, 2)).toEqual(true);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return true for a negative fraction", () => {
+  expect(isProperFraction(-4, 7)).toEqual(true);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return true for a equal fraction", () => {
+  expect(isProperFraction(3, 3)).toEqual(true);
+});

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

@@ -1,5 +1,8 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
+  let rank = card[0];
+  if (rank === "A") return 11;
+  if (rank === "J" || rank === "Q" || rank === "K") return 10;
+  if (Number(card[0]) > 0 && Number(card[0]) < 11) return Number(card[0]);
+  return "Invalid card rank.";
 }
-module.exports = getCardValue;
+module.exports = getCardValue;

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

@@ -1,11 +1,27 @@
 const getCardValue = require("./3-get-card-value");
 
 test("should return 11 for Ace of Spades", () => {
-    const aceofSpades = getCardValue("A♠");
-    expect(aceofSpades).toEqual(11);
-    });
+  const aceofSpades = getCardValue("A♠");
+  expect(aceofSpades).toEqual(11);
+});
 
 // Case 2: Handle Number Cards (2-10):
+test("should return number for card number bw 2-10", () => {
+  const fiveofHearts = getCardValue("5♥");
+  expect(fiveofHearts).toEqual(5);
+});
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return number for face of cards", () => {
+  const faceofHearts = getCardValue("J♥");
+  expect(faceofHearts).toEqual(10);
+});
 // Case 4: Handle Ace (A):
+test("should return number for face of cards", () => {
+  const aceofHearts = getCardValue("A♥");
+  expect(aceofHearts).toEqual(11);
+});
 // Case 5: Handle Invalid Cards:
+test("should return number for face of cards", () => {
+  const invalidCard = getCardValue("C♥");
+  expect(invalidCard).toEqual("Invalid card rank.");
+});

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

@@ -1,5 +1,16 @@
 function countChar(stringOfCharacters, findCharacter) {
-    return 5
+    if (!stringOfCharacters.includes(findCharacter)) {
+        return "No occurrence";
+    }
+
+    let count = 0;
+    for (let char of stringOfCharacters) {
+        if (char === 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 there is no occurrence", () => {
+  const str = "aaaaa";
+  const char = "b";
+  const count = countChar(str, char);
+  expect(count).toEqual("No occurrence");
+});

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

@@ -1,5 +1,11 @@
 function getOrdinalNumber(num) {
- return "1st";
+  if (num % 10 ==1 && num % 100 !=11  )
+    return "1st";
+  if (num % 10 ==2 && num % 100 !=12  )
+    return "2nd";
+  if (num % 10 ==3 && num % 100 !=13  )
+    return "3rd";
+  return "th"
 }
 
 module.exports = getOrdinalNumber;

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

@@ -11,3 +11,21 @@ const getOrdinalNumber = require("./get-ordinal-number");
 test("should return '1st' for 1", () => {
     expect(getOrdinalNumber(1)).toEqual("1st");
     });
+test("should return '2nd' for 2", () => {
+    expect(getOrdinalNumber(2)).toEqual("2nd");
+    });
+test("should return '3rd' for 3", () => {
+    expect(getOrdinalNumber(3)).toEqual("3rd");
+    });
+test("should return 'th' for 11", () => {
+    expect(getOrdinalNumber(11)).toEqual("th");
+    });
+test("should return 'th' for 12", () => {
+    expect(getOrdinalNumber(12)).toEqual("th");
+    });
+test("should return 'th' for 13", () => {
+    expect(getOrdinalNumber(13)).toEqual("th");
+    });
+test("should return 'th' for 4", () => {
+    expect(getOrdinalNumber(4)).toEqual("th");
+    });

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

@@ -1,5 +1,15 @@
-function repeat() {
-    return "hellohellohello";
+function repeat(str, count) {
+
+  if (Number(count) > 1) {
+    let result=""
+    for (let i = 0; i <= count-1; i++) {
+      result += str;
+    }
+    return result;
+  }
+  if (count == 1) return str;
+  if (count == 0) return "";
+  return "Negative counts are not valid.";
 }
 
-module.exports = repeat;
+module.exports = repeat;