From d4e4a580c6f189f40397103569bac7dade69c296 Mon Sep 17 00:00:00 2001 From: MacDonald91 Date: Wed, 4 Mar 2026 15:56:30 +0000 Subject: [PATCH] Sprint 3 Practice TDD --- Sprint-3/2-practice-tdd/count.js | 12 +++++-- Sprint-3/2-practice-tdd/count.test.js | 7 ++++ Sprint-3/2-practice-tdd/get-ordinal-number.js | 24 ++++++++++++-- .../2-practice-tdd/get-ordinal-number.test.js | 33 +++++++++++++++++++ Sprint-3/2-practice-tdd/repeat-str.js | 16 +++++++-- Sprint-3/2-practice-tdd/repeat-str.test.js | 18 ++++++++++ 6 files changed, 103 insertions(+), 7 deletions(-) diff --git a/Sprint-3/2-practice-tdd/count.js b/Sprint-3/2-practice-tdd/count.js index 95b6ebb7d4..1ca00855f5 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 i = 0; i < stringOfCharacters.length; i++) { + if (stringOfCharacters[i] === findCharacter) { + count++; + } + } + + return count; } -module.exports = countChar; +module.exports = countChar; \ No newline at end of file diff --git a/Sprint-3/2-practice-tdd/count.test.js b/Sprint-3/2-practice-tdd/count.test.js index 179ea0ddf7..615398828d 100644 --- a/Sprint-3/2-practice-tdd/count.test.js +++ b/Sprint-3/2-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 the character does not exist in the string", () => { + const str = "hello"; + const char = "z"; + const count = countChar(str, char); + expect(count).toEqual(0); +}); \ No newline at end of file diff --git a/Sprint-3/2-practice-tdd/get-ordinal-number.js b/Sprint-3/2-practice-tdd/get-ordinal-number.js index f95d71db13..07c8408fd2 100644 --- a/Sprint-3/2-practice-tdd/get-ordinal-number.js +++ b/Sprint-3/2-practice-tdd/get-ordinal-number.js @@ -1,5 +1,25 @@ function getOrdinalNumber(num) { - return "1st"; + const lastTwoDigits = num % 100; + const lastDigit = num % 10; + + // Special case for 11, 12, 13 + if (lastTwoDigits >= 11 && lastTwoDigits <= 13) { + return num + "th"; + } + + if (lastDigit === 1) { + return num + "st"; + } + + if (lastDigit === 2) { + return num + "nd"; + } + + if (lastDigit === 3) { + return num + "rd"; + } + + return num + "th"; } -module.exports = getOrdinalNumber; +module.exports = getOrdinalNumber; \ No newline at end of file diff --git a/Sprint-3/2-practice-tdd/get-ordinal-number.test.js b/Sprint-3/2-practice-tdd/get-ordinal-number.test.js index adfa58560f..fab1b1e23f 100644 --- a/Sprint-3/2-practice-tdd/get-ordinal-number.test.js +++ b/Sprint-3/2-practice-tdd/get-ordinal-number.test.js @@ -18,3 +18,36 @@ test("should append 'st' for numbers ending with 1, except those ending with 11" expect(getOrdinalNumber(21)).toEqual("21st"); expect(getOrdinalNumber(131)).toEqual("131st"); }); + +// Case 2: Numbers ending with 2 (but not 12) +// When the number ends with 2, except those ending with 12, +// Then the function should return a string by appending "nd" to the number. +test("should append 'nd' for numbers ending with 2, except those ending with 12", () => { + expect(getOrdinalNumber(2)).toEqual("2nd"); + expect(getOrdinalNumber(32)).toEqual("32nd"); + expect(getOrdinalNumber(102)).toEqual("102nd"); +}); + +// Case 3: Numbers ending with 3 (but not 13) +// When the number ends with 3, except those ending with 13, +// Then the function should return a string by appending "rd" to the number. +test("should append 'rd' for numbers ending with 3, except those ending with 13", () => { + expect(getOrdinalNumber(3)).toEqual("3rd"); + expect(getOrdinalNumber(43)).toEqual("43rd"); + expect(getOrdinalNumber(103)).toEqual("103rd"); +}); + +// Case 4: Numbers ending with 11, 12, or 13 +// These are special cases and should always end with "th". +test("should append 'th' for numbers ending with 11, 12, or 13", () => { + expect(getOrdinalNumber(11)).toEqual("11th"); + expect(getOrdinalNumber(12)).toEqual("12th"); + expect(getOrdinalNumber(13)).toEqual("13th"); +}); + +// Case 5: All other numbers should end with "th" +test("should append 'th' for all other numbers", () => { + expect(getOrdinalNumber(4)).toEqual("4th"); + expect(getOrdinalNumber(10)).toEqual("10th"); + expect(getOrdinalNumber(100)).toEqual("100th"); +}); \ No newline at end of file diff --git a/Sprint-3/2-practice-tdd/repeat-str.js b/Sprint-3/2-practice-tdd/repeat-str.js index 3838c7b003..ec88310206 100644 --- a/Sprint-3/2-practice-tdd/repeat-str.js +++ b/Sprint-3/2-practice-tdd/repeat-str.js @@ -1,5 +1,15 @@ -function repeatStr() { - return "hellohellohello"; +function repeatStr(str, count) { + if (count < 0) { + throw new Error("Count cannot be negative"); + } + + let result = ""; + + for (let i = 0; i < count; i++) { + result += str; + } + + return result; } -module.exports = repeatStr; +module.exports = repeatStr; \ No newline at end of file diff --git a/Sprint-3/2-practice-tdd/repeat-str.test.js b/Sprint-3/2-practice-tdd/repeat-str.test.js index a3fc1196c4..b0670920e2 100644 --- a/Sprint-3/2-practice-tdd/repeat-str.test.js +++ b/Sprint-3/2-practice-tdd/repeat-str.test.js @@ -21,12 +21,30 @@ 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, // 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, // Then it should throw an error, as negative counts are not valid. + +test("should throw an error when count is negative", () => { + expect(() => repeatStr("hello", -1)).toThrow(); +}); \ No newline at end of file