From 61d68a83051ab62c470ebcc6e3c7fd0ce3d035fb Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Sun, 8 Mar 2026 17:18:51 +0000
Subject: [PATCH 01/12] created function getAngleType(angle) and wrote tests to
 cover all cases

---
 .../implement/1-get-angle-type.js             | 35 +++++++++++++++++--
 1 file changed, 32 insertions(+), 3 deletions(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
index 9e05a871e..8060e0de6 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
@@ -15,7 +15,12 @@
 // execute the code to ensure all tests pass.
 
 function getAngleType(angle) {
-  // TODO: Implement this function
+  if (angle < 0 || angle >= 360) return "Invalid angle";
+  if (angle < 90) return "Acute angle";
+  if (angle === 90) return "Right angle";
+  if (angle > 90 && 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.
@@ -31,7 +36,31 @@ 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");
+
+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 invalid = getAngleType(-10);
+assertEquals(invalid, "Invalid angle");
+
+const invalid2 = getAngleType(360);
+assertEquals(invalid2, "Invalid angle");
+
+console.log(getAngleType(20));
+console.log(getAngleType(90));
+console.log(getAngleType(120));
+console.log(getAngleType(180));
+console.log(getAngleType(270));
+console.log(getAngleType(-10));
+console.log(getAngleType(360));

From 70c2e4f865af2f5411d4002905a8777426b36fb8 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Sun, 8 Mar 2026 18:07:08 +0000
Subject: [PATCH 02/12] completed function, wrote assertions and console.log to
 check

---
 .../implement/2-is-proper-fraction.js            | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index 970cb9b64..939ee6d37 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -11,7 +11,9 @@
 // execute the code to ensure all tests pass.
 
 function isProperFraction(numerator, denominator) {
-  // TODO: Implement this function
+  if (denominator === 0) return false; // A fraction with a zero denominator is not valid
+  if (Math.abs(numerator) >= Math.abs(denominator)) return false; // Not a proper fraction
+  return true; // Is a proper fraction
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -31,3 +33,15 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+assertEquals(isProperFraction(2, 2), false);
+assertEquals(isProperFraction(2, 1), false);
+assertEquals(isProperFraction(0, 2), true);
+assertEquals(isProperFraction(1, 0), false);
+assertEquals(isProperFraction(0, 0), false);
+
+console.log(isProperFraction(1, 2));
+console.log(isProperFraction(2, 2));
+console.log(isProperFraction(2, 1));
+console.log(isProperFraction(0, 2));
+console.log(isProperFraction(1, 0));
+console.log(isProperFraction(0, 0));
\ No newline at end of file

From a979c9149734f9f9291888864ffe1cbe6462db2e Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Sun, 8 Mar 2026 23:19:56 +0000
Subject: [PATCH 03/12] added assert, try and catch, console log

---
 .../implement/3-get-card-value.js             | 75 ++++++++++++++++++-
 1 file changed, 72 insertions(+), 3 deletions(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
index c7559e787..ad0e4c1d2 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
@@ -22,9 +22,32 @@
 // execute the code to ensure all tests pass.
 
 function getCardValue(card) {
-  // TODO: Implement this function
-}
+   
+  if (typeof card !== "string" || card.length < 2) {
+    throw new Error("Invalid card"); 
+  }
+// Handle "10" which is 2 characters
+  if (card.startsWith("10")) {
+    return 10;
+  }
+
+  const firstChar = card[0];
+
+  // check if picture cards
+  if (firstChar === "A") return 11;
+  if (firstChar === "J" || firstChar === "Q" || firstChar === "K" ) return 10;
+
+  // check if number is between 2 and 9, 10 has already been checked for and there should be no other valid cards
+
+  const num = Number(firstChar);
 
+  if (!isNaN(num) && num >= 2 && num <= 9) {
+    return num;
+      // for everything else
+      } else { 
+        throw new Error("Invalid card");
+      }
+}
 // 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;
@@ -40,13 +63,59 @@ function assertEquals(actualOutput, targetOutput) {
 // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
 // Examples:
 assertEquals(getCardValue("9♠"), 9);
+assertEquals(getCardValue("10♥"), 10);
+assertEquals(getCardValue("J♥"), 10);
+assertEquals(getCardValue("A♠"), 11);
+assertEquals(getCardValue("Q♦"), 10);
+assertEquals(getCardValue("K♣"), 10);
 
 // Handling invalid cards
+try {
+  getCardValue("♠J");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {}
+    
 try {
   getCardValue("invalid");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {}
 
-  // This line will not be reached if an error is thrown as expected
+// Handling invalid cards
+try {
+  getCardValue("♠J");
   console.error("Error was not thrown for invalid card");
 } catch (e) {}
 
+try {
+  getCardValue("invalid");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {}
+
+
+try {
+  getCardValue("♠J");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {
+  console.log("Invalid card detected");
+}
+
+try {
+  getCardValue("invalid");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {}
+
+console.log(getCardValue("9♠"));
+console.log(getCardValue("10♥"));
+console.log(getCardValue("J♥"));
+console.log(getCardValue("A♠"));
+console.log(getCardValue("Q♦"));
+console.log(getCardValue("K♣"));
+ 
+  // This line will not be reached if an error is thrown as expected
+try {
+sole.error("Error was not thrown for invalid card");
+} catch (e) {}
+
 // What other invalid card cases can you think of?
+// There could be cards with special characters 
+// There could be cards with two numbers rather than a number and a suite

From 73862c581a133f381eeac1b107b77808a19ceb70 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Mon, 9 Mar 2026 10:11:39 +0000
Subject: [PATCH 04/12] added test cases for angles

---
 .../implement/1-get-angle-type.js             |  2 +-
 .../1-get-angle-type.test.js                  | 35 +++++++++++++++++--
 2 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
index 8060e0de6..545f1c41a 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
@@ -25,8 +25,8 @@ function getAngleType(angle) {
 
 // The line below allows us to load the getAngleType function into tests in other files.
 // This will be useful in the "rewrite tests with jest" step.
-module.exports = getAngleType;
 
+module.exports = getAngleType;
 // This helper function is written to make our assertions easier to read.
 // If the actual output matches the target output, the test will pass
 function assertEquals(actualOutput, targetOutput) {
diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
index d777f348d..94eac95b0 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
@@ -2,19 +2,48 @@
 // We will use the same function, but write tests for it using Jest in this file.
 const getAngleType = require("../implement/1-get-angle-type");
 
-// TODO: Write tests in Jest syntax to cover all cases/outcomes,
-// including boundary and invalid cases.
-
 // Case 1: Acute angles
 test(`should return "Acute angle" when (0 < angle < 90)`, () => {
   // Test various acute angles, including boundary cases
   expect(getAngleType(1)).toEqual("Acute angle");
   expect(getAngleType(45)).toEqual("Acute angle");
   expect(getAngleType(89)).toEqual("Acute angle");
+  expect(getAngleType(91)).toEqual("Obtuse angle");
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when (angle === 90)`, () => {
+  // Test various right angles, including boundary cases
+  expect(getAngleType(90)).toEqual("Right angle");
+  expect(getAngleType(89)).toEqual("Acute angle");
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+});
+
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (angle > 90) && when (angle < 180)`, () => {
+  // Test various obtuse angles, including boundary cases
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(150)).toEqual("Obtuse angle");
+  expect(getAngleType(189)).toEqual("Reflex angle");
+});
+
 // Case 4: Straight angle
+test(`should return "Straight angle" when (angle === 180)`, () => {
+  // Test various straight angles, including boundary cases
+  expect(getAngleType(180)).toEqual("Straight angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+  expect(getAngleType(181)).toEqual("Reflex angle");
+});
+
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (angle > 180)`, () => {
+  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" when (angle < 0 || angle >= 360)`, () => {
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+});

From 44c463c13a19f3541a305aae9b8f7826cfb19666 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Mon, 9 Mar 2026 10:28:07 +0000
Subject: [PATCH 05/12] added tests

---
 .../implement/2-is-proper-fraction.js         |  2 +-
 .../2-is-proper-fraction.test.js              | 22 +++++++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index 939ee6d37..574470b7e 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -44,4 +44,4 @@ console.log(isProperFraction(2, 2));
 console.log(isProperFraction(2, 1));
 console.log(isProperFraction(0, 2));
 console.log(isProperFraction(1, 0));
-console.log(isProperFraction(0, 0));
\ No newline at end of file
+console.log(isProperFraction(0, 0));
diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
index 7f087b2ba..356903e40 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
@@ -2,9 +2,27 @@
 // We will use the same function, but write tests for it using Jest in this file.
 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
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+});
+
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(2, 2)).toEqual(false);
+});
+
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(2, 1)).toEqual(false);
+});
+
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(0, 1)).toEqual(true);
+});

From e3943d2348f7eeae5dd4446e7f5ab2477ed6da94 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Mon, 9 Mar 2026 11:40:33 +0000
Subject: [PATCH 06/12] tested cards with jest and updated comments

---
 .../implement/3-get-card-value.js             | 65 ++++++++++---------
 .../3-get-card-value.test.js                  | 52 ++++++++++++---
 2 files changed, 76 insertions(+), 41 deletions(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
index ad0e4c1d2..8efc14733 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
@@ -22,20 +22,28 @@
 // execute the code to ensure all tests pass.
 
 function getCardValue(card) {
-   
   if (typeof card !== "string" || card.length < 2) {
-    throw new Error("Invalid card"); 
+    throw new Error("Invalid card");
   }
-// Handle "10" which is 2 characters
+  // Handle "10" which is like "10♥"
   if (card.startsWith("10")) {
     return 10;
   }
+  //if more than 2 characters and not starting with a 10 card
+  if (card.length > 2) {
+    throw new Error("Invalid card");
+  }
+
+  // remaining cards must be 2 characters long
+
+  const validSuits = ["♠", "♥", "♦", "♣"];
+  const suit = card[card.length - 1];
 
   const firstChar = card[0];
 
   // check if picture cards
   if (firstChar === "A") return 11;
-  if (firstChar === "J" || firstChar === "Q" || firstChar === "K" ) return 10;
+  if (firstChar === "J" || firstChar === "Q" || firstChar === "K") return 10;
 
   // check if number is between 2 and 9, 10 has already been checked for and there should be no other valid cards
 
@@ -43,10 +51,10 @@ function getCardValue(card) {
 
   if (!isNaN(num) && num >= 2 && num <= 9) {
     return num;
-      // for everything else
-      } else { 
-        throw new Error("Invalid card");
-      }
+    // for everything else
+  } else {
+    throw new Error("Invalid card");
+  }
 }
 // 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.
@@ -69,17 +77,6 @@ assertEquals(getCardValue("A♠"), 11);
 assertEquals(getCardValue("Q♦"), 10);
 assertEquals(getCardValue("K♣"), 10);
 
-// Handling invalid cards
-try {
-  getCardValue("♠J");
-  console.error("Error was not thrown for invalid card");
-} catch (e) {}
-    
-try {
-  getCardValue("invalid");
-  console.error("Error was not thrown for invalid card");
-} catch (e) {}
-
 // Handling invalid cards
 try {
   getCardValue("♠J");
@@ -91,16 +88,8 @@ try {
   console.error("Error was not thrown for invalid card");
 } catch (e) {}
 
-
 try {
-  getCardValue("♠J");
-  console.error("Error was not thrown for invalid card");
-} catch (e) {
-  console.log("Invalid card detected");
-}
-
-try {
-  getCardValue("invalid");
+  getCardValue("22");
   console.error("Error was not thrown for invalid card");
 } catch (e) {}
 
@@ -110,12 +99,24 @@ console.log(getCardValue("J♥"));
 console.log(getCardValue("A♠"));
 console.log(getCardValue("Q♦"));
 console.log(getCardValue("K♣"));
- 
-  // This line will not be reached if an error is thrown as expected
+
+// This line will not be reached if an error is thrown as expected
 try {
-sole.error("Error was not thrown for invalid card");
+  console.error("Error was not thrown for invalid card");
 } catch (e) {}
 
 // What other invalid card cases can you think of?
-// There could be cards with special characters 
+
+// There could be cards with special characters.
+
 // There could be cards with two numbers rather than a number and a suite
+// These will not be picked up because the code only checks for if starts with 10 or if the first character
+// is a number between 2 and 9, so cards like "22" would be valid because the first number
+// is 2, but the second character is not checked for validity.  It is also 2 characters
+// so will not cause an error when the length is checked.
+
+// Since the second character is not checked it could be 2D which is not a valid card but
+// would be accepted because the first character is 2 and the second character is not checked for validity
+
+// When the card is checked if it begins with 10 it does check if it has a valid suite
+// as only the first 2 characters are checked so it could be 10DEVON or 10♥♥.
diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index cf7f9dae2..f215e37b4 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -1,20 +1,54 @@
 // This statement loads the getCardValue function you wrote in the implement directory.
 // We will use the same function, but write tests for it using Jest in this file.
+const { createTestScheduler } = require("jest");
 const getCardValue = require("../implement/3-get-card-value");
 
-// TODO: Write tests in Jest syntax to cover all possible outcomes.
-
 // Case 1: Ace (A)
 test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
-// Suggestion: Group the remaining test data into these categories:
-//   Number Cards (2-10)
-//   Face Cards (J, Q, K)
-//   Invalid Cards
+// Case 2: Face Cards (J, Q, K)
+test(`Should return 10 when given a Jack card`, () => {
+  expect(getCardValue("J♥")).toEqual(10);
+});
 
-// 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
+test(`Should return 10 when given a Queen card`, () => {
+  expect(getCardValue("Q♦")).toEqual(10);
+});
+
+test(`Should return 10 when given a King card`, () => {
+  expect(getCardValue("K♣")).toEqual(10);
+});
+
+// Case 3: Number Cards (2-10)
+test(`Should return 2 when given a 2 card`, () => {
+  expect(getCardValue("2♠")).toEqual(2);
+});
+
+test(`Should return 10 when given a 10 card`, () => {
+  expect(getCardValue("10♥")).toEqual(10);
+});
+
+// Case 4: Invalid Cards
+test(`Should throw an error when given an invalid card`, () => {
+  expect(() => getCardValue("♠J")).toThrow();
+});
+
+test(`Should throw an error when given an invalid card`, () => {
+  expect(() => getCardValue("invalid")).toThrow();
+});
+
+test(`Should throw an error when given an invalid card`, () => {
+  expect(() => getCardValue("12♠")).toThrow();
+});
+
+test(`Should throw an error when given an invalid card`, () => {
+  expect(() => getCardValue("1")).toThrow();
+});
 
+// when I tested with test(`Should throw an error when given an invalid card`, () => {
+// expect(() => getCardValue("22")).toThrow();  it did not throw an error because 22 passes the
+// test of first number between and 9 and being 2 characters long,
+// but it is not a valid card because the second character is not a valid suite.
+// The second character is not checked.

From bddc0bb5043e89d114bb66f84d2b5e9dfaaa8602 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Mon, 9 Mar 2026 12:45:56 +0000
Subject: [PATCH 07/12] wrote test then function and checked

---
 Sprint-3/2-practice-tdd/count.js      | 10 +++++++-
 Sprint-3/2-practice-tdd/count.test.js | 35 +++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/Sprint-3/2-practice-tdd/count.js b/Sprint-3/2-practice-tdd/count.js
index 95b6ebb7d..288c024c1 100644
--- a/Sprint-3/2-practice-tdd/count.js
+++ b/Sprint-3/2-practice-tdd/count.js
@@ -1,5 +1,13 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  
+  let count = 0;
+  
+  for (let char of stringOfCharacters) {
+    if (char === findCharacter) {
+      count++;
+      }
+    }
+      return count;
 }
 
 module.exports = countChar;
diff --git a/Sprint-3/2-practice-tdd/count.test.js b/Sprint-3/2-practice-tdd/count.test.js
index 179ea0ddf..476cc2cad 100644
--- a/Sprint-3/2-practice-tdd/count.test.js
+++ b/Sprint-3/2-practice-tdd/count.test.js
@@ -22,3 +22,38 @@ test("should count multiple occurrences of a character", () => {
 // And a character `char` that does not exist within `str`.
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of `char` were found.
+
+test("should count multiple occurrences of a character", () => {
+  const str = "blind";
+  const char = "a";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "blood";
+  const char = "o";
+  const count = countChar(str, char);
+  expect(count).toEqual(2);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "blood";
+  const char = "l";
+  const count = countChar(str, char);
+  expect(count).toEqual(1);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "bbbrf";
+  const char = "b";
+  const count = countChar(str, char);
+  expect(count).toEqual(3);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "ooooa";
+  const char = "o";
+  const count = countChar(str, char);
+  expect(count).toEqual(4);
+});

From e235397d5d12f475133d6d8140fade0bbe37d0c1 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Mon, 9 Mar 2026 15:35:26 +0000
Subject: [PATCH 08/12] Delete Sprint-3/2-practice-tdd/count.js

---
 Sprint-3/2-practice-tdd/count.js | 13 -------------
 1 file changed, 13 deletions(-)
 delete mode 100644 Sprint-3/2-practice-tdd/count.js

diff --git a/Sprint-3/2-practice-tdd/count.js b/Sprint-3/2-practice-tdd/count.js
deleted file mode 100644
index 288c024c1..000000000
--- a/Sprint-3/2-practice-tdd/count.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function countChar(stringOfCharacters, findCharacter) {
-  
-  let count = 0;
-  
-  for (let char of stringOfCharacters) {
-    if (char === findCharacter) {
-      count++;
-      }
-    }
-      return count;
-}
-
-module.exports = countChar;

From 97db10117c0e5f2e3d9c227a7fc80564c3d84100 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Tue, 10 Mar 2026 21:50:36 +0000
Subject: [PATCH 09/12] deleted unneccessary lines, added const line 11 and
 comment line 13

---
 Sprint-3/3-dead-code/exercise-1.js | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/Sprint-3/3-dead-code/exercise-1.js b/Sprint-3/3-dead-code/exercise-1.js
index 4d09f15fa..5ea3c6977 100644
--- a/Sprint-3/3-dead-code/exercise-1.js
+++ b/Sprint-3/3-dead-code/exercise-1.js
@@ -1,17 +1,15 @@
 // Find the instances of unreachable and redundant code - remove them!
 // The sayHello function should continue to work for any reasonable input it's given.
 
-let testName = "Jerry";
+//let testName = "Jerry";
 const greeting = "hello";
 
 function sayHello(greeting, name) {
-  const greetingStr = greeting + ", " + name + "!";
   return `${greeting}, ${name}!`;
-  console.log(greetingStr);
 }
 
-testName = "Aman";
+const testName = "Aman";
 
-const greetingMessage = sayHello(greeting, testName);
+const greetingMessage = sayHello(greeting, testName); // only needed if want to store the variables
 
 console.log(greetingMessage); // 'hello, Aman!'

From de2ab2ffd017efd88ec812be72b834da8ec6e88e Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Tue, 10 Mar 2026 22:35:41 +0000
Subject: [PATCH 10/12] removed dead code

---
 Sprint-3/3-dead-code/exercise-2.js | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/Sprint-3/3-dead-code/exercise-2.js b/Sprint-3/3-dead-code/exercise-2.js
index 56d7887c4..4b999afbf 100644
--- a/Sprint-3/3-dead-code/exercise-2.js
+++ b/Sprint-3/3-dead-code/exercise-2.js
@@ -2,13 +2,8 @@
 // The countAndCapitalisePets function should continue to work for any reasonable input it's given, and you shouldn't modify the pets variable.
 
 const pets = ["parrot", "hamster", "horse", "dog", "hamster", "cat", "hamster"];
-const capitalisedPets = pets.map((pet) => pet.toUpperCase());
 const petsStartingWithH = pets.filter((pet) => pet[0] === "h");
 
-function logPets(petsArr) {
-  petsArr.forEach((pet) => console.log(pet));
-}
-
 function countAndCapitalisePets(petsArr) {
   const petCount = {};
 
@@ -25,4 +20,4 @@ function countAndCapitalisePets(petsArr) {
 
 const countedPetsStartingWithH = countAndCapitalisePets(petsStartingWithH);
 
-console.log(countedPetsStartingWithH); // { 'HAMSTER': 3, 'HORSE': 1 } <- Final console log
+console.log(countedPetsStartingWithH); // { 'HAMSTER': 3, 'HORSE': 1 }

From 002f8fe3c53cd15dd350d17ae1573223ddb20876 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Tue, 10 Mar 2026 22:39:50 +0000
Subject: [PATCH 11/12] Delete Sprint-3/3-dead-code/exercise-1.js

---
 Sprint-3/3-dead-code/exercise-1.js | 15 ---------------
 1 file changed, 15 deletions(-)
 delete mode 100644 Sprint-3/3-dead-code/exercise-1.js

diff --git a/Sprint-3/3-dead-code/exercise-1.js b/Sprint-3/3-dead-code/exercise-1.js
deleted file mode 100644
index 5ea3c6977..000000000
--- a/Sprint-3/3-dead-code/exercise-1.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// Find the instances of unreachable and redundant code - remove them!
-// The sayHello function should continue to work for any reasonable input it's given.
-
-//let testName = "Jerry";
-const greeting = "hello";
-
-function sayHello(greeting, name) {
-  return `${greeting}, ${name}!`;
-}
-
-const testName = "Aman";
-
-const greetingMessage = sayHello(greeting, testName); // only needed if want to store the variables
-
-console.log(greetingMessage); // 'hello, Aman!'

From d074c28861edb026dd0a15c692f7240e502b8287 Mon Sep 17 00:00:00 2001
From: Hayriye Saricicek <mshayriyesaricicek@gmail.com>
Date: Tue, 10 Mar 2026 22:41:01 +0000
Subject: [PATCH 12/12] Delete Sprint-3/3-dead-code/exercise-2.js

---
 Sprint-3/3-dead-code/exercise-2.js | 23 -----------------------
 1 file changed, 23 deletions(-)
 delete mode 100644 Sprint-3/3-dead-code/exercise-2.js

diff --git a/Sprint-3/3-dead-code/exercise-2.js b/Sprint-3/3-dead-code/exercise-2.js
deleted file mode 100644
index 4b999afbf..000000000
--- a/Sprint-3/3-dead-code/exercise-2.js
+++ /dev/null
@@ -1,23 +0,0 @@
-// Remove the unused code that does not contribute to the final console log
-// The countAndCapitalisePets function should continue to work for any reasonable input it's given, and you shouldn't modify the pets variable.
-
-const pets = ["parrot", "hamster", "horse", "dog", "hamster", "cat", "hamster"];
-const petsStartingWithH = pets.filter((pet) => pet[0] === "h");
-
-function countAndCapitalisePets(petsArr) {
-  const petCount = {};
-
-  petsArr.forEach((pet) => {
-    const capitalisedPet = pet.toUpperCase();
-    if (petCount[capitalisedPet]) {
-      petCount[capitalisedPet] += 1;
-    } else {
-      petCount[capitalisedPet] = 1;
-    }
-  });
-  return petCount;
-}
-
-const countedPetsStartingWithH = countAndCapitalisePets(petsStartingWithH);
-
-console.log(countedPetsStartingWithH); // { 'HAMSTER': 3, 'HORSE': 1 }