ITP-Jan 2025 | London | Maryna Romanova | Module-Structuring-and-Testing-Data | Week 6 | Sprint 3

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

@@ -8,17 +8,21 @@
 // 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 < 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";
+  // 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
 // if the actual output matches the target output, the test will pass
 function assertEquals(actualOutput, targetOutput) {
-  console.assert(
-    actualOutput === targetOutput,
-    `Expected ${actualOutput} to equal ${targetOutput}`
-  );
+ console.assert(
+   actualOutput === targetOutput,
+   `Expected ${actualOutput} to equal ${targetOutput}`
+ );
 }
 
 // Acceptance criteria:
@@ -43,14 +47,16 @@ 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);
-// ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(obtuse, "Obtuse angle");
 
 // 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
+const reflex = getAngleType(300);
+assertEquals(reflex, "Reflex angle");

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

@@ -7,10 +7,19 @@
 // complete the rest of the tests and cases
 // write one test at a time, and make it pass, build your solution up methodically
 
-function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
+function isProperFractionFix(numerator, denominator) {
+  if (denominator === 0) return false; 
+  return Math.abs(numerator) < Math.abs(denominator);
 }
 
+// function isProperFraction(numerator, denominator) {
+//     if (numerator < denominator) return true;
+//     else return false;
+
+
+
+// }
+
 // here's our helper again
 function assertEquals(actualOutput, targetOutput) {
   console.assert(
@@ -40,14 +49,20 @@ 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);
-// ====> 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?
+// What other scenarios could you test for? - we can text non-integers
+const wtoNegativeFraction = isProperFractionFix(-3, -2);
+assertEquals(equalFraction, false);
+
+
+
+

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

@@ -8,8 +8,13 @@
 // 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) {
+  const rank = card.slice(0, -1);
     if (rank === "A") return 11;
-}
+    if (rank === "J" || rank === "Q" || rank === "K" || rank === "10") return 10;
+    if (rank >= "2" && rank <= "9") return parseInt(rank);
+    throw new Error("Invalid card rank");
+  }
+
 
 // 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
@@ -33,19 +38,32 @@ 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♥");
-// ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(fiveofHearts, parseInt(rank));
 
 // 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 fiveofCard = getCardValue("Q♥");
+assertEquals(fiveofCard, 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 fiveofAce = getCardValue("A♥");
+assertEquals(fiveofAce, 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 fiveofInvalid = getCardValue("Z♥");
+assertEquals(fiveofInvalid, Error);
+
+
+
+
+
+
+

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

@@ -1,5 +1,9 @@
 function getAngleType(angle) {
   if (angle === 90) return "Right angle";
+  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";
   // replace with your completed function from key-implement
 
 }

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 acute angle (<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 (120°)", () => {
+  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 (270°)", () => {
+  expect(getAngleType(270)).toEqual("Reflex angle");
+});

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

@@ -1,6 +1,13 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
-}
+    if (denominator === 0) return false; 
+    return Math.abs(numerator) < Math.abs(denominator);
+  }
+// function isProperFraction(numerator, denominator) {
+//     if (numerator < denominator) return true;
+//     else return false;
+//     // add your completed function from key-implement here
+// }
+
+
 
 module.exports = isProperFraction;

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

@@ -2,10 +2,15 @@ const isProperFraction = require("./2-is-proper-fraction");
 
 test("should return true for a proper fraction", () => {
   expect(isProperFraction(2, 3)).toEqual(true);
-});
+  expect(isProperFraction(5, 2)).toEqual(false);  
+  expect(isProperFraction(5, -2)).toEqual(false);  
+  expect(isProperFraction(-5, 2)).toEqual(false);    
+  expect(isProperFraction(-5, -2)).toEqual(false);  
+}); 
+
 
 // Case 2: Identify Improper Fractions:
 
-// Case 3: Identify Negative Fractions:
 
+// Case 3: Identify Negative Fractions:
 // Case 4: Identify Equal Numerator and Denominator:

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

@@ -1,5 +1,13 @@
-function getCardValue(card) {
+
     // replace with your code from key-implement
-    return 11;
-}
+
+    function getCardValue(card) {
+        const rank = card.slice(0, -1);
+          if (rank === "A") return 11;
+          if (["J", "Q", "K", "10"].includes(rank)) return 10;
+          if (/^[2-9]$/.test(rank)) return Number(rank);
+         throw new Error("Invalid")
+        }
+
+
 module.exports = getCardValue;

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

@@ -1,11 +1,37 @@
 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("Handle Number Cards 2-10", () => {
+const fiveOfHearts = getCardValue("5♥");
+expect(fiveOfHearts).toEqual(5);
+});
+
 // Case 3: Handle Face Cards (J, Q, K):
+test("Handle Face Cards J, Q, K", () => {
+const handleFace = getCardValue("Q♥");
+expect(handleFace).toEqual(10);
+});
+
 // Case 4: Handle Ace (A):
-// Case 5: Handle Invalid Cards:
+test("Handle Ace (A)", () => {
+const handleAce = getCardValue("A♥");
+expect(handleAce).toEqual(11);
+});
+
+// // Case 5: Handle Invalid Cards:
+// test("Handle Ace (A)", () => {
+//     const handleAce = getCardValue("29♠");
+//     expect(handleAce).toEqual("Invalid");
+//     });
+
+//Case 5: Handle Invalid Cards:
+test("Handle Invalid Cards", () => {
+   expect(() => getCardValue("Z♥")).toThrow("Invalid");
+   expect(() => getCardValue("29♠")).toThrow("Invalid");
+   expect(() => getCardValue("2.1♠")).toThrow("Invalid");
+ });

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

@@ -1,5 +1,11 @@
 function countChar(stringOfCharacters, findCharacter) {
-    return 5
+    let count = 0; 
+    for (let i = 0; i <stringOfCharacters.length;i++){
+        if(stringOfCharacters.charAt(i) === findCharacter ) {
+            count++
+        }
+    }
+    return count;
 }
-
+console.log (countChar('Maryna' , 'a'))
 module.exports = countChar;

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

@@ -22,3 +22,10 @@ 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 when character is not in string", () => {
+  const str = "hello";
+  const char = "z";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});

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

@@ -1,5 +1,25 @@
-function getOrdinalNumber(num) {
- return "1st";
+function getOrdinalNumber(number) {
+
+    if (number < 1) return number; 
+
+    let suffix = "th"; 
+    if (number % 100 !== 11 && number % 100 !== 12 && number % 100 !== 13) {  
+        if (number % 10 === 1) suffix = "st";
+        else if (number % 10 === 2) suffix = "nd";
+        else if (number % 10 === 3) suffix = "rd";
+    }
+
+
+ return number + suffix;
 }
 
+console.log(getOrdinalNumber(1));   // "1st"
+console.log(getOrdinalNumber(2));   // "2nd"
+console.log(getOrdinalNumber(3));   // "3rd"
+console.log(getOrdinalNumber(4));   // "4th"
+console.log(getOrdinalNumber(11));  // "11th"
+console.log(getOrdinalNumber(22));  // "22nd"
+console.log(getOrdinalNumber(103)); // "103rd"
+
+
 module.exports = getOrdinalNumber;

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

@@ -8,6 +8,22 @@ const getOrdinalNumber = require("./get-ordinal-number");
 // When the number is 1,
 // Then the function should return "1st"
 
+
+
+test("getOrdinalNumber handles numbers ending with a right suffix", () => {
+    expect(getOrdinalNumber(3)).toEqual("3rd");  
+    expect(getOrdinalNumber(23)).toEqual("23rd");  
+    expect(getOrdinalNumber(53)).toEqual("53rd");  
+    expect(getOrdinalNumber(103)).toEqual("103rd");
+});
+
+test("should return '2nd' for 2", () => {
+    expect(getOrdinalNumber(2)).toEqual("2nd");
+});
+
 test("should return '1st' for 1", () => {
     expect(getOrdinalNumber(1)).toEqual("1st");
     });
+
+
+

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

@@ -1,5 +1,10 @@
-function repeat() {
-    return "hellohellohello";
-}
+function repeat(word, count) {
+    if (count < 0) {
+      throw new Error("Count cannot be negative");
+    }
+    return word.repeat(count);
+  }
+
+console.log (repeat ("hello"))
 
 module.exports = repeat;