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Merged
raklaptudirm merged 5 commits into from
Oct 5, 2021
Merged

Upper case conversion tests #733

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85f8154
Fix typos and update description to include a link
charliejmoore Oct 4, 2021
a212646
Update export for Jest testing
charliejmoore Oct 4, 2021
a4bde82
Update capitalization style of function name to align with convention
charliejmoore Oct 4, 2021
9aa890b
Add tests for UpperCaseConversion
charliejmoore Oct 4, 2021
220e75d
Fix standardjs warning
charliejmoore Oct 4, 2021
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24 changes: 12 additions & 12 deletions Conversions/UpperCaseConversion.js
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Original file line number Diff line number Diff line change
@@ -1,26 +1,26 @@
/*
Explanation :- a user gives a String (it can be incomplete lower or
partial lower) and then the program would convert it into a
complete(all characters in upper case) upper case string. The
logic we have used in the following program is: All the lower case
characters (a-z) has ASCII value ranging from 97 to 122 and their
corresponding upper case characters (A-Z) have ASCII values 32
Explanation :- A user gives a string (it can be incomplete lowercase or
partially in lowercase) and then the program converts it into a
completely (all characters in uppercase) uppercase string. The
logic we have used in the following program is: All the lowercase
characters (a-z) has [ASCII](https://en.wikipedia.org/wiki/ASCII) value ranging from 97 to 122 and their
corresponding uppercase characters (A-Z) have ASCII values 32
lesser than them. For example ‘a‘ has an ASCII value of 97
and ‘A‘ has an ASCII value of 65 (97 - 32). The same applies to other
characters.
*/

/**
* UpperCaseConversion takes any case-style string and converts it to the upper case-style string.
* @param {String} inputString any case style string
* @returns {String} upper case string
* upperCaseConversion takes any case-style string and converts it to the uppercase-style string.
* @param {string} inputString Any case style string
* @returns {string} Uppercase string
*/
const UpperCaseConversion = (inputString) => {
const upperCaseConversion = (inputString) => {
// Take a string and split it into characters.
const newString = inputString.split('').map(char => {
// Get a character code by the use charCodeAt method.
const presentCharCode = char.charCodeAt()
// If the character code lies between 97 to 122 it means they are in the lower case so convert it.
// If the character code lies between 97 to 122, it means they are in the lowercase so convert it.
if (presentCharCode >= 97 && presentCharCode <= 122) {
// Convert the case by use of the above explanation.
return String.fromCharCode(presentCharCode - 32)
Expand All @@ -32,4 +32,4 @@ const UpperCaseConversion = (inputString) => {
return newString.join('')
}

module.exports = UpperCaseConversion
export { upperCaseConversion }
43 changes: 43 additions & 0 deletions Conversions/test/UpperCaseConverstion.test.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
import { upperCaseConversion } from '../UpperCaseConversion'

describe(('Test the upperCaseConversion function'), () => {
it('should return an empty string when the input is an empty string', () => {
expect(upperCaseConversion('')).toEqual('')
})

it('should return an all-uppercase string when input is an all-uppercase string', () => {
expect(upperCaseConversion('ALLUPPERCASE')).toEqual('ALLUPPERCASE')
})

it('should return an all-uppercase string when input is an all-uppercase string with spaces', () => {
expect(upperCaseConversion('ALL UPPERCASE')).toEqual('ALL UPPERCASE')
})

it('should return an all-uppercase string when input is an all-uppercase string with punctuation', () => {
expect(upperCaseConversion('ALL UPPER-CASE!')).toEqual('ALL UPPER-CASE!')
})

it('should return an all-uppercase string when input is an all-lowercase string', () => {
expect(upperCaseConversion('lowercaseinput')).toEqual('LOWERCASEINPUT')
})

it('should return an all-uppercase string when input is an all-lowercase string with spaces', () => {
expect(upperCaseConversion('lowercase input')).toEqual('LOWERCASE INPUT')
})

it('should return an all-uppercase string when input is an all-lowercase string with punctuation', () => {
expect(upperCaseConversion('lower-case, input.')).toEqual('LOWER-CASE, INPUT.')
})

it('should return an all-uppercase string when input is an mixed-case string', () => {
expect(upperCaseConversion('mixeDCaSeINPuT')).toEqual('MIXEDCASEINPUT')
})

it('should return an all-uppercase string when input is an mixed-case string with spaces', () => {
expect(upperCaseConversion('mixeD CaSe INPuT')).toEqual('MIXED CASE INPUT')
})

it('should return an all-uppercase string when input is an mixed-case string with punctuation', () => {
expect(upperCaseConversion('mixeD-CaSe INPuT!')).toEqual('MIXED-CASE INPUT!')
})
})