├── README.md ├── exercise-2.js ├── exercise-1.js ├── exercise-4.js ├── exercise-3.js ├── package.json ├── LICENSE ├── .gitignore └── unit-test.test.js /README.md: -------------------------------------------------------------------------------- 1 | # testing-exercise -------------------------------------------------------------------------------- /exercise-2.js: -------------------------------------------------------------------------------- 1 | const reverseString=(str)=>{ 2 | return str.split("").reverse().join("") 3 | } 4 | module.exports=reverseString -------------------------------------------------------------------------------- /exercise-1.js: -------------------------------------------------------------------------------- 1 | const stringLength=(str)=>{ 2 | if( str.length >= 1 && str.length<=10){ 3 | return str.length 4 | }else{ 5 | throw new Error("Condition not met") 6 | } 7 | } 8 | module.exports = stringLength; 9 | -------------------------------------------------------------------------------- /exercise-4.js: -------------------------------------------------------------------------------- 1 | const capitalize=(str)=>{ 2 | if(typeof str==="string"){ 3 | return str.length!==0?str[0].toUpperCase() + str.slice(1):"Empty string" 4 | }else{ 5 | throw new Error("Not a string") 6 | } 7 | } 8 | module.exports=capitalize -------------------------------------------------------------------------------- /exercise-3.js: -------------------------------------------------------------------------------- 1 | class Calculator{ 2 | constructor(num1,num2){ 3 | this.num1=num1 4 | this.num2=num2 5 | } 6 | add=()=>{ 7 | return this.num1 + this.num2 8 | } 9 | substract=()=>{ 10 | return this.num1 - this.num2 11 | } 12 | multiply=()=>{ 13 | return this.num1 * this.num2 14 | } 15 | divide=()=>{ 16 | if(this.num2!==0){ 17 | return this.num1 / this.num2 18 | }else{ 19 | throw new Error("Undefined : not divisble by zero") 20 | } 21 | } 22 | } 23 | module.exports=Calculator -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "testing-exercise", 3 | "version": "1.0.0", 4 | "description": "", 5 | "main": "index.js", 6 | "scripts": { 7 | "test": "jest", 8 | "watch":"jest --watchAll *.js" 9 | }, 10 | "repository": { 11 | "type": "git", 12 | "url": "git+https://github.com/zdnahom/testing-exercise.git" 13 | }, 14 | "keywords": [], 15 | "author": "", 16 | "license": "ISC", 17 | "bugs": { 18 | "url": "https://github.com/zdnahom/testing-exercise/issues" 19 | }, 20 | "homepage": "https://github.com/zdnahom/testing-exercise#readme", 21 | "devDependencies": { 22 | "jest": "^29.4.3" 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2023 Nahom_zd 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Logs 2 | logs 3 | *.log 4 | npm-debug.log* 5 | yarn-debug.log* 6 | yarn-error.log* 7 | lerna-debug.log* 8 | 9 | # Diagnostic reports (https://nodejs.org/api/report.html) 10 | report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json 11 | 12 | # Runtime data 13 | pids 14 | *.pid 15 | *.seed 16 | *.pid.lock 17 | 18 | # Directory for instrumented libs generated by jscoverage/JSCover 19 | lib-cov 20 | 21 | # Coverage directory used by tools like istanbul 22 | coverage 23 | *.lcov 24 | 25 | # nyc test coverage 26 | .nyc_output 27 | 28 | # Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files) 29 | .grunt 30 | 31 | # Bower dependency directory (https://bower.io/) 32 | bower_components 33 | 34 | # node-waf configuration 35 | .lock-wscript 36 | 37 | # Compiled binary addons (https://nodejs.org/api/addons.html) 38 | build/Release 39 | 40 | # Dependency directories 41 | node_modules/ 42 | jspm_packages/ 43 | 44 | # TypeScript v1 declaration files 45 | typings/ 46 | 47 | # TypeScript cache 48 | *.tsbuildinfo 49 | 50 | # Optional npm cache directory 51 | .npm 52 | 53 | # Optional eslint cache 54 | .eslintcache 55 | 56 | # Microbundle cache 57 | .rpt2_cache/ 58 | .rts2_cache_cjs/ 59 | .rts2_cache_es/ 60 | .rts2_cache_umd/ 61 | 62 | # Optional REPL history 63 | .node_repl_history 64 | 65 | # Output of 'npm pack' 66 | *.tgz 67 | 68 | # Yarn Integrity file 69 | .yarn-integrity 70 | 71 | # dotenv environment variables file 72 | .env 73 | .env.test 74 | 75 | # parcel-bundler cache (https://parceljs.org/) 76 | .cache 77 | 78 | # Next.js build output 79 | .next 80 | 81 | # Nuxt.js build / generate output 82 | .nuxt 83 | dist 84 | 85 | # Gatsby files 86 | .cache/ 87 | # Comment in the public line in if your project uses Gatsby and *not* Next.js 88 | # https://nextjs.org/blog/next-9-1#public-directory-support 89 | # public 90 | 91 | # vuepress build output 92 | .vuepress/dist 93 | 94 | # Serverless directories 95 | .serverless/ 96 | 97 | # FuseBox cache 98 | .fusebox/ 99 | 100 | # DynamoDB Local files 101 | .dynamodb/ 102 | 103 | # TernJS port file 104 | .tern-port 105 | -------------------------------------------------------------------------------- /unit-test.test.js: -------------------------------------------------------------------------------- 1 | const stringLength=require('./exercise-1') 2 | const reverseString=require('./exercise-2') 3 | const Calculator=require('./exercise-3') 4 | const capitalize=require('./exercise-4') 5 | 6 | // For the first Exercise 7 | it("length meet the conditions",()=>{ 8 | expect(stringLength("nahom")).toBe(5); 9 | }) 10 | it("condition not met",()=>{ 11 | expect(()=>stringLength("")).toThrow(Error) 12 | expect(()=>stringLength("nahomzerihun")).toThrow(Error) 13 | }) 14 | 15 | // For the second Exercise 16 | it("Reverse a string",()=>{ 17 | expect(reverseString("nahom")).toBe("mohan"); 18 | }) 19 | 20 | //For the third Exercise 21 | describe("Calculator test",()=>{ 22 | let calculator; 23 | describe("addition test",()=>{ 24 | 25 | it("1 + 2 is 3",()=>{ 26 | calculator= new Calculator(1,2) 27 | expect(calculator.add()).toBe(3) 28 | }) 29 | it("100 + 150 is 250",()=>{ 30 | calculator= new Calculator(100,150) 31 | expect(calculator.add()).toBe(250) 32 | }) 33 | it("75 + 25 is 100",()=>{ 34 | calculator= new Calculator(75,25) 35 | expect(calculator.add()).toBe(100) 36 | }) 37 | }) 38 | describe("substraction test",()=>{ 39 | 40 | it("1 - 2 is -1",()=>{ 41 | calculator= new Calculator(1,2) 42 | expect(calculator.substract()).toBe(-1) 43 | }) 44 | it("100 - 150 is -50",()=>{ 45 | calculator= new Calculator(100,150) 46 | expect(calculator.substract()).toBe(-50) 47 | }) 48 | it("75 - 25 is 50",()=>{ 49 | calculator= new Calculator(75,25) 50 | expect(calculator.substract()).toBe(50) 51 | }) 52 | }) 53 | describe("multiplication test",()=>{ 54 | 55 | it("1 * 2 is 2",()=>{ 56 | calculator= new Calculator(1,2) 57 | expect(calculator.multiply()).toBe(2) 58 | }) 59 | it("100 * 150 is 15000",()=>{ 60 | calculator= new Calculator(100,150) 61 | expect(calculator.multiply()).toBe(15000) 62 | }) 63 | it("75 * 25 is 1875",()=>{ 64 | calculator= new Calculator(75,25) 65 | expect(calculator.multiply()).toBe(1875) 66 | }) 67 | }) 68 | describe("division test",()=>{ 69 | 70 | it("1 / 2 is 0.5",()=>{ 71 | calculator= new Calculator(1,2) 72 | expect(calculator.divide()).toBe(0.5) 73 | }) 74 | it("100 / 10 is 10",()=>{ 75 | calculator= new Calculator(100,10) 76 | expect(calculator.divide()).toBe(10) 77 | }) 78 | it("Undefined",()=>{ 79 | calculator= new Calculator(75,0) 80 | expect(()=>calculator.divide()).toThrow(Error) 81 | }) 82 | }) 83 | }) 84 | 85 | describe("capitalize",()=>{ 86 | describe("given a string",()=>{ 87 | it("Not Empty string",()=>{ 88 | expect(capitalize("nahom")).toBe("Nahom") 89 | }) 90 | it("Empty string",()=>{ 91 | expect(capitalize("")).toBe("Empty string") 92 | }) 93 | }) 94 | describe("given not a string",()=>{ 95 | it("Throws an Error",()=>{ 96 | expect(()=>capitalize(1)).toThrow(Error) 97 | expect(()=>capitalize(undefined)).toThrow(Error) 98 | expect(()=>capitalize()).toThrow(Error) 99 | }) 100 | }) 101 | }) --------------------------------------------------------------------------------