From e2cbd98d58c5c4d25b4070cb2f1895a444866a84 Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Sun, 18 Oct 2026 01:22:33 +0100
Subject: [PATCH 01/13] test: add countChar no occurrences case

---
 practice-tdd/count.test.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/practice-tdd/count.test.js b/practice-tdd/count.test.js
index cb3aaae59..46383b929 100644
--- a/practice-tdd/count.test.js
+++ b/practice-tdd/count.test.js
@@ -22,3 +22,10 @@ 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 return 0 when there are no occurrences of a character", () => {
+  const str = "hello";
+  const char = "z";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});

From 09fa3dfafd92e74dc611d26ad1da949772697a75 Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Sun, 18 Oct 2026 01:48:46 +0100
Subject: [PATCH 02/13] feat: implementing countChar function

---
 practice-tdd/count.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/practice-tdd/count.js b/practice-tdd/count.js
index 5518c5712..ed59a8e24 100644
--- a/practice-tdd/count.js
+++ b/practice-tdd/count.js
@@ -1,3 +1,10 @@
 export function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let count = 0;
+
+  for (let i = 0; i < stringOfCharacters.length; i++) {
+    if (stringOfCharacters[0] === findCharacter) {
+      count = count + 1;
+    }
+  }
+  return count;
 }

From 22b0009569bb445cdf8af7620d59aea2180c2fae Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Sun, 18 Oct 2026 23:30:13 +0100
Subject: [PATCH 03/13] test: add repeatStr count one case

---
 practice-tdd/repeat-str.test.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js
index 8a7036102..64f6346ac 100644
--- a/practice-tdd/repeat-str.test.js
+++ b/practice-tdd/repeat-str.test.js
@@ -21,6 +21,13 @@ test("should repeat the string count times", () => {
 // When the repeatStr function is called with these inputs,
 // Then it should return the original `str` without repetition.
 
+test("should return the original string when count is 1", () => {
+  const str = "hello";
+  const count = 1;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("hello");
+});
+
 // Case: Handle count of 0:
 // Given a target string `str` and a `count` equal to 0,
 // When the repeatStr function is called with these inputs,

From eac53d4d0a250b8ee4b00e305d7b73319571de66 Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Sun, 18 Oct 2026 23:33:28 +0100
Subject: [PATCH 04/13] test: add repeatStr count zero  case

---
 practice-tdd/repeat-str.test.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js
index 64f6346ac..542245587 100644
--- a/practice-tdd/repeat-str.test.js
+++ b/practice-tdd/repeat-str.test.js
@@ -33,6 +33,13 @@ test("should return the original string when count is 1", () => {
 // When the repeatStr function is called with these inputs,
 // Then it should return an empty string.
 
+test("should return an empty string when count is 0", () => {
+  const str = "hello";
+  const count = 0;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("");
+});
+
 // Case: Handle negative count:
 // Given a target string `str` and a negative integer `count`,
 // When the repeatStr function is called with these inputs,

From 8f585b0d2ab1fa9531a73f97998af909529a5331 Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Sun, 18 Oct 2026 23:38:51 +0100
Subject: [PATCH 05/13] test: add repeatStr negative count case

---
 practice-tdd/repeat-str.test.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js
index 542245587..464a3c866 100644
--- a/practice-tdd/repeat-str.test.js
+++ b/practice-tdd/repeat-str.test.js
@@ -44,3 +44,10 @@ test("should return an empty string when count is 0", () => {
 // Given a target string `str` and a negative integer `count`,
 // When the repeatStr function is called with these inputs,
 // Then it should throw an error, as negative counts are not valid.
+
+test("should throw an error when count is negative", () => {
+  const str = "hello";
+  const count = -1;
+  const repeatedStr = repeatStr(str, count);
+  expect(() => repeatStr(str, count)).toThrow();
+});

From c80fcfc14788e339bdf8a0dfcc101fe7e8daed2a Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Mon, 19 Oct 2026 00:08:59 +0100
Subject: [PATCH 06/13] feat: complete repeatStr function

---
 practice-tdd/repeat-str.test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js
index 464a3c866..1af5862eb 100644
--- a/practice-tdd/repeat-str.test.js
+++ b/practice-tdd/repeat-str.test.js
@@ -48,6 +48,6 @@ test("should return an empty string when count is 0", () => {
 test("should throw an error when count is negative", () => {
   const str = "hello";
   const count = -1;
-  const repeatedStr = repeatStr(str, count);
+
   expect(() => repeatStr(str, count)).toThrow();
 });

From 1b771635dba46a213cff5c6f9a644c8021ac8e11 Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Mon, 19 Oct 2026 00:41:06 +0100
Subject: [PATCH 07/13] implementing ordinal number ending in 1

---
 practice-tdd/get-ordinal-number.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/practice-tdd/get-ordinal-number.js b/practice-tdd/get-ordinal-number.js
index 5c6291f5e..a1ac974a9 100644
--- a/practice-tdd/get-ordinal-number.js
+++ b/practice-tdd/get-ordinal-number.js
@@ -1,3 +1,6 @@
 export function getOrdinalNumber(num) {
+  if (num % 10 === 1) {
+    return `${num}st`;
+  }
   return "1st";
 }

From 01358ab4f0c5d7e44c954a242bce494dacc2589a Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Mon, 19 Oct 2026 01:13:55 +0100
Subject: [PATCH 08/13] test: covering ordinal number cases

---
 practice-tdd/get-ordinal-number.test.js | 45 +++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/practice-tdd/get-ordinal-number.test.js b/practice-tdd/get-ordinal-number.test.js
index e23174a18..949d7185d 100644
--- a/practice-tdd/get-ordinal-number.test.js
+++ b/practice-tdd/get-ordinal-number.test.js
@@ -18,3 +18,48 @@ test("should append 'st' for numbers ending with 1, except those ending with 11"
   expect(getOrdinalNumber(21)).toEqual("21st");
   expect(getOrdinalNumber(131)).toEqual("131st");
 });
+
+//Test that numbers ending in 11 use "th".
+test("should return 'th' for the numbers ending in 11", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+});
+
+//Test that numbers ending in 2, excluding numbers ending in 12.
+test("should append 'nd' for the numbers ending in 2, except those ending in 12", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(132)).toEqual("132nd");
+});
+
+//Test that numbers ending in 3, excluding numbers ending in 13.
+test("should append 'rd' for the numbers ending in 3, except those ending in 13", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(33)).toEqual("33rd");
+  expect(getOrdinalNumber(133)).toEqual("133rd");
+});
+
+//Test that numbers ending in 13 use "th".
+test("should return 'th' for the numbers ending in 13", () => {
+  expect(getOrdinalNumber(13)).toEqual("13th");
+  expect(getOrdinalNumber(113)).toEqual("113th");
+});
+
+//Test that numbers not ending in 1, 2, or 3 use "th".
+test("should append 'th' for other numbers", () => {
+  expect(getOrdinalNumber(4)).toEqual("4th");
+  expect(getOrdinalNumber(7)).toEqual("7th");
+  expect(getOrdinalNumber(10)).toEqual("10th");
+  expect(getOrdinalNumber(20)).toEqual("20th");
+});
+
+//Test that larger numbers ending in 12 use "th".
+test("should return 'th' for the numbers ending in 12", () => {
+  expect(getOrdinalNumber(12)).toEqual("12th");
+  expect(getOrdinalNumber(112)).toEqual("112th");
+});
+
+//Test that larger numbers ending in 11 use "th".
+test("should return 'th' for the numbers ending in 11", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(111)).toEqual("111th");
+});

From ecbd8d995ff8c9a7193e554b65ac2398d932a8fc Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Mon, 19 Oct 2026 01:15:10 +0100
Subject: [PATCH 09/13] feat: completing getOrdinalNumber function

---
 practice-tdd/get-ordinal-number.js | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/practice-tdd/get-ordinal-number.js b/practice-tdd/get-ordinal-number.js
index a1ac974a9..05df2fea4 100644
--- a/practice-tdd/get-ordinal-number.js
+++ b/practice-tdd/get-ordinal-number.js
@@ -1,6 +1,25 @@
 export function getOrdinalNumber(num) {
+  if (num % 100 === 11) {
+    return `${num}th`;
+  }
+  if (num % 100 === 12) {
+    return `${num}th`;
+  }
+
+  if (num % 100 === 13) {
+    return `${num}th`;
+  }
+
   if (num % 10 === 1) {
     return `${num}st`;
   }
-  return "1st";
+
+  if (num % 10 === 2) {
+    return `${num}nd`;
+  }
+
+  if (num % 10 === 3) {
+    return `${num}rd`;
+  }
+  return `${num}th`;
 }

From 44661d3d43ab92a4d2883a12ff90870e16f1d83b Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Mon, 19 Oct 2026 01:21:14 +0100
Subject: [PATCH 10/13] feat: complete repeatStr function

---
 practice-tdd/repeat-str.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/practice-tdd/repeat-str.js b/practice-tdd/repeat-str.js
index af273f3b0..56da71b83 100644
--- a/practice-tdd/repeat-str.js
+++ b/practice-tdd/repeat-str.js
@@ -1,5 +1,11 @@
-export function repeatStr() {
-  // Your implementation of this function must *not* call String.prototype.repeat (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat).
-  // The goal is to re-implement that function, not to use it.
-  return "hellohellohello";
+export function repeatStr(str, count) {
+  if (count < 0) {
+    throw new Error("Count cannot be negative");
+  }
+  let result = "";
+
+  for (let i = 0; i < count; i++) {
+    result = result + str;
+  }
+  return result;
 }

From 48c4ca295ff748406e55cc24aa794b42aa77486a Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Tue, 27 Oct 2026 00:30:08 +0000
Subject: [PATCH 11/13] added import node test and assert

---
 practice-tdd/get-ordinal-number.test.js | 42 +++++++++++++------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/practice-tdd/get-ordinal-number.test.js b/practice-tdd/get-ordinal-number.test.js
index 949d7185d..c1cfc8721 100644
--- a/practice-tdd/get-ordinal-number.test.js
+++ b/practice-tdd/get-ordinal-number.test.js
@@ -1,3 +1,5 @@
+import { test } from "node:test";
+import { strict as assert } from "node:assert";
 import { getOrdinalNumber } from "./get-ordinal-number.js";
 // In this week's prep, we started implementing getOrdinalNumber.
 
@@ -14,52 +16,52 @@ import { getOrdinalNumber } from "./get-ordinal-number.js";
 // When the number ends with 1, except those ending with 11,
 // Then the function should return a string by appending "st" to the number.
 test("should append 'st' for numbers ending with 1, except those ending with 11", () => {
-  expect(getOrdinalNumber(1)).toEqual("1st");
-  expect(getOrdinalNumber(21)).toEqual("21st");
-  expect(getOrdinalNumber(131)).toEqual("131st");
+  assert.equal(getOrdinalNumber(1), "1st");
+  assert.equal(getOrdinalNumber(21), "21st");
+  assert.equal(getOrdinalNumber(131), "131st");
 });
 
 //Test that numbers ending in 11 use "th".
 test("should return 'th' for the numbers ending in 11", () => {
-  expect(getOrdinalNumber(11)).toEqual("11th");
+  assert.equal(getOrdinalNumber(11), "11th");
 });
 
 //Test that numbers ending in 2, excluding numbers ending in 12.
 test("should append 'nd' for the numbers ending in 2, except those ending in 12", () => {
-  expect(getOrdinalNumber(2)).toEqual("2nd");
-  expect(getOrdinalNumber(22)).toEqual("22nd");
-  expect(getOrdinalNumber(132)).toEqual("132nd");
+  assert.equal(getOrdinalNumber(2), "2nd");
+  assert.equal(getOrdinalNumber(22), "22nd");
+  assert.equal(getOrdinalNumber(132), "132nd");
 });
 
 //Test that numbers ending in 3, excluding numbers ending in 13.
 test("should append 'rd' for the numbers ending in 3, except those ending in 13", () => {
-  expect(getOrdinalNumber(3)).toEqual("3rd");
-  expect(getOrdinalNumber(33)).toEqual("33rd");
-  expect(getOrdinalNumber(133)).toEqual("133rd");
+  assert.equal(getOrdinalNumber(3), "3rd");
+  assert.equal(getOrdinalNumber(33), "33rd");
+  assert.equal(getOrdinalNumber(133), "133rd");
 });
 
 //Test that numbers ending in 13 use "th".
 test("should return 'th' for the numbers ending in 13", () => {
-  expect(getOrdinalNumber(13)).toEqual("13th");
-  expect(getOrdinalNumber(113)).toEqual("113th");
+  assert.equal(getOrdinalNumber(13), "13th");
+  assert.equal(getOrdinalNumber(113), "113th");
 });
 
 //Test that numbers not ending in 1, 2, or 3 use "th".
 test("should append 'th' for other numbers", () => {
-  expect(getOrdinalNumber(4)).toEqual("4th");
-  expect(getOrdinalNumber(7)).toEqual("7th");
-  expect(getOrdinalNumber(10)).toEqual("10th");
-  expect(getOrdinalNumber(20)).toEqual("20th");
+  assert.equal(getOrdinalNumber(4), "4th");
+  assert.equal(getOrdinalNumber(7), "7th");
+  assert.equal(getOrdinalNumber(10), "10th");
+  assert.equal(getOrdinalNumber(20), "20th");
 });
 
 //Test that larger numbers ending in 12 use "th".
 test("should return 'th' for the numbers ending in 12", () => {
-  expect(getOrdinalNumber(12)).toEqual("12th");
-  expect(getOrdinalNumber(112)).toEqual("112th");
+  assert.equal(getOrdinalNumber(12), "12th");
+  assert.equal(getOrdinalNumber(112), "112th");
 });
 
 //Test that larger numbers ending in 11 use "th".
 test("should return 'th' for the numbers ending in 11", () => {
-  expect(getOrdinalNumber(11)).toEqual("11th");
-  expect(getOrdinalNumber(111)).toEqual("111th");
+  assert.equal(getOrdinalNumber(11), "11th");
+  assert.equal(getOrdinalNumber(111), "111th");
 });

From 81c665a91b8fd66923eca53455769d1475a600bf Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Tue, 27 Oct 2026 00:30:18 +0000
Subject: [PATCH 12/13] added import node test and assert

---
 practice-tdd/repeat-str.test.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js
index 1af5862eb..94254cf60 100644
--- a/practice-tdd/repeat-str.test.js
+++ b/practice-tdd/repeat-str.test.js
@@ -1,4 +1,6 @@
 // Implement a function repeatStr
+import { test } from "node:test";
+import { strict as assert } from "node:assert";
 import { repeatStr } from "./repeat-str.js";
 // Given a target string `str` and a positive integer `count`,
 // When the repeatStr function is called with these inputs,
@@ -13,7 +15,7 @@ test("should repeat the string count times", () => {
   const str = "hello";
   const count = 3;
   const repeatedStr = repeatStr(str, count);
-  expect(repeatedStr).toEqual("hellohellohello");
+  assert.equal(repeatedStr, "hellohellohello");
 });
 
 // Case: handle count of 1:
@@ -25,7 +27,7 @@ test("should return the original string when count is 1", () => {
   const str = "hello";
   const count = 1;
   const repeatedStr = repeatStr(str, count);
-  expect(repeatedStr).toEqual("hello");
+  assert.equal(repeatedStr, "hello");
 });
 
 // Case: Handle count of 0:
@@ -37,7 +39,7 @@ test("should return an empty string when count is 0", () => {
   const str = "hello";
   const count = 0;
   const repeatedStr = repeatStr(str, count);
-  expect(repeatedStr).toEqual("");
+  assert.equal(repeatedStr, "");
 });
 
 // Case: Handle negative count:
@@ -49,5 +51,7 @@ test("should throw an error when count is negative", () => {
   const str = "hello";
   const count = -1;
 
-  expect(() => repeatStr(str, count)).toThrow();
+  assert.throws(() => {
+    repeatStr(str, count);
+  });
 });

From ee15295c660b85b0a4f2dce3845d580129a30ee8 Mon Sep 17 00:00:00 2001
From: Sakiya Mayow <zakia.logic@gmail.com>
Date: Tue, 27 Oct 2026 00:30:37 +0000
Subject: [PATCH 13/13] fixed test and code and added import node test and
 assert

---
 practice-tdd/count.test.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/practice-tdd/count.test.js b/practice-tdd/count.test.js
index 46383b929..3adafeb41 100644
--- a/practice-tdd/count.test.js
+++ b/practice-tdd/count.test.js
@@ -1,4 +1,6 @@
 // implement a function countChar that counts the number of times a character occurs in a string
+import { test } from "node:test";
+import { strict as assert } from "node:assert";
 import { countChar } from "./count.js";
 // Given a string `str` and a single character `char` to search for,
 // When the countChar function is called with these inputs,
@@ -14,7 +16,7 @@ test("should count multiple occurrences of a character", () => {
   const str = "aaaaa";
   const char = "a";
   const count = countChar(str, char);
-  expect(count).toEqual(5);
+  assert.equal(count, 5);
 });
 
 // Scenario: No Occurrences
@@ -27,5 +29,12 @@ test("should return 0 when there are no occurrences of a character", () => {
   const str = "hello";
   const char = "z";
   const count = countChar(str, char);
-  expect(count).toEqual(0);
+  assert.equal(count, 0);
+});
+
+test("should return 0 when the string is empty", () => {
+  const str = "";
+  const char = "a";
+  const count = countChar(str, char);
+  assert.equal(count, 0);
 });