Manchester | 26-ITP-May | Szidonia Bodo | Sprint 3 | Practice TDD

Sprint-3/2-practice-tdd/count.js

@@ -1,5 +1,12 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let countCharacter = 0;
+  for (let i = 0; i < stringOfCharacters.length; i++){
+    if (stringOfCharacters.charAt(i) === findCharacter){
+      countCharacter += 1;
+    } 
+  }
+  return countCharacter
 }
 
+
 module.exports = countChar;

Sprint-3/2-practice-tdd/count.test.js

@@ -22,3 +22,31 @@ 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 = "banana";
+  const char = "n";
+  const count = countChar(str, char);
+  expect(count).toEqual(2);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "appleTree";
+  const char = "e";
+  const count = countChar(str, char);
+  expect(count).toEqual(3);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "strawberry";
+  const char = "r";
+  const count = countChar(str, char);
+  expect(count).toEqual(3);
+});
+
+test("should count multiple occurrences of a character", () => {
+  const str = "ghost";
+  const char = "o";
+  const count = countChar(str, char);
+  expect(count).toEqual(1);
+});

Sprint-3/2-practice-tdd/get-ordinal-number.js

@@ -1,5 +1,18 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  if ( typeof num !==  "number" ){
+    throw new Error('Not a number')
+  }
+
+  if (num % 10 === 1 &&  num % 100 !== 11) {
+    return `${num}st`;
+  } else if (num % 10 === 2 && num % 100 !== 12 ) {
+    return `${num}nd`;
+  } else if (num % 10 === 3 && num % 100 !== 13) {
+    return `${num}rd`;
+  } else {
+
+    return `${num}th`;
+  }
 }
 
 module.exports = getOrdinalNumber;

Sprint-3/2-practice-tdd/get-ordinal-number.test.js

@@ -17,4 +17,37 @@ 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");
+  expect(getOrdinalNumber(1101)).toEqual("1101st");
+});
+
+test("should append 'nd' for numbers ending with 2, except those ending with 12", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(132)).toEqual("132nd");
+  expect(getOrdinalNumber(22222)).toEqual("22222nd");
+});
+
+test("should append 'rd' for numbers ending with 3, except those ending with 13", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(23)).toEqual("23rd");
+  expect(getOrdinalNumber(133)).toEqual("133rd");
+  expect(getOrdinalNumber(33333)).toEqual("33333rd");
+});
+
+test("should append 'th' for numbers ending with 11, 12, 13", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(12)).toEqual("12th");
+  expect(getOrdinalNumber(13)).toEqual("13th");
+  expect(getOrdinalNumber(111)).toEqual("111th");
+  expect(getOrdinalNumber(112)).toEqual("112th");
+  expect(getOrdinalNumber(113)).toEqual("113th");
+  expect(getOrdinalNumber(11111)).toEqual("11111th");
+  expect(getOrdinalNumber(11112)).toEqual("11112th");
+  expect(getOrdinalNumber(11113)).toEqual("11113th");
+});
+
+test("should throw an error message", () => {
+  expect(() => {
+    getOrdinalNumber("Hello");
+  }).toThrow();
 });

Sprint-3/2-practice-tdd/repeat-str.js

@@ -1,7 +1,13 @@
-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";
+function repeatStr(str, count) {
+  if (count < 0) {
+    throw new Error("Error");
+  }
+
+  let repeatedString = "";
+  for (let i = 0; i < count; i++) {
+    repeatedString += str;
+  }
+  return repeatedString;
 }
 
 module.exports = repeatStr;

Sprint-3/2-practice-tdd/repeat-str.test.js

@@ -20,13 +20,33 @@ test("should repeat the string count times", () => {
 // Given a target string `str` and a `count` equal to 1,
 // When the repeatStr function is called with these inputs,
 // Then it should return the original `str` without repetition.
+test("should repeat the string count times", () => {
+  const str = "what";
+  const count = 1;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("what");
+});
 
 // 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", () => {
+  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 message", () => {
+  const str = "hello";
+  const count = -3;
+  expect(() => {
+    repeatStr(str, count);
+  }).toThrow();
+});