Created
February 29, 2016 23:08
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JS Bin // source http://jsbin.com/tumufo
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>JS Bin</title> | |
| <script src="https://wzrd.in/standalone/expect@latest"></script> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> | |
| 'use strict'; | |
| var counter = function counter(state, action) { | |
| if (state === undefined) state = 0; | |
| switch (action.type) { | |
| case 'INCREMENT': | |
| return state + 1; | |
| case 'DECREMENT': | |
| return state - 1; | |
| default: | |
| return state; | |
| } | |
| }; | |
| expect(counter(0, { type: 'INCREMENT' })).toEqual(1); | |
| expect(counter(1, { type: 'INCREMENT' })).toEqual(2); | |
| expect(counter(2, { type: 'DECREMENT' })).toEqual(1); | |
| expect(counter(1, { type: 'DECREMENT' })).toEqual(0); | |
| expect(counter(1, { type: 'SOMETHING_ELSE' })).toEqual(1); | |
| expect(counter(undefined, {})).toEqual(0); | |
| console.log('Tests passed'); | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">const counter = (state = 0, action) => { | |
| switch (action.type) { | |
| case 'INCREMENT': | |
| return state + 1; | |
| case 'DECREMENT': | |
| return state - 1; | |
| default: | |
| return state; | |
| } | |
| } | |
| expect( | |
| counter(0, {type: 'INCREMENT'}) | |
| ).toEqual(1); | |
| expect( | |
| counter(1, {type: 'INCREMENT'}) | |
| ).toEqual(2); | |
| expect( | |
| counter(2, {type: 'DECREMENT'}) | |
| ).toEqual(1); | |
| expect( | |
| counter(1, {type: 'DECREMENT'}) | |
| ).toEqual(0); | |
| expect( | |
| counter(1, {type: 'SOMETHING_ELSE'}) | |
| ).toEqual(1); | |
| expect( | |
| counter(undefined, {}) | |
| ).toEqual(0); | |
| console.log('Tests passed')</script></body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 'use strict'; | |
| var counter = function counter(state, action) { | |
| if (state === undefined) state = 0; | |
| switch (action.type) { | |
| case 'INCREMENT': | |
| return state + 1; | |
| case 'DECREMENT': | |
| return state - 1; | |
| default: | |
| return state; | |
| } | |
| }; | |
| expect(counter(0, { type: 'INCREMENT' })).toEqual(1); | |
| expect(counter(1, { type: 'INCREMENT' })).toEqual(2); | |
| expect(counter(2, { type: 'DECREMENT' })).toEqual(1); | |
| expect(counter(1, { type: 'DECREMENT' })).toEqual(0); | |
| expect(counter(1, { type: 'SOMETHING_ELSE' })).toEqual(1); | |
| expect(counter(undefined, {})).toEqual(0); | |
| console.log('Tests passed'); |
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