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JS Bin// source http://jsbin.com/muqigog
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/expect/1.20.2/expect.min.js"></script> | |
| <script src="https://wzrd.in/standalone/deep-freeze@latest"></script> | |
| <script id="jsbin-javascript"> | |
| console.clear() | |
| const todos = (state = [], action) => { | |
| switch (action.type) { | |
| case 'ADD_TODO': | |
| return [ | |
| ...state, | |
| { | |
| id: action.id, | |
| text: action.text, | |
| completed: false | |
| } | |
| ] | |
| default: | |
| return state | |
| } | |
| } | |
| const testAddTodo = () => { | |
| const stateBefore = []; | |
| const action = { | |
| type: 'ADD_TODO', | |
| id: 0, | |
| text: 'Learn Redux' | |
| } | |
| const stateAfter = [{ | |
| id: 0, | |
| text: 'Learn Redux', | |
| completed: false | |
| }] | |
| deepFreeze(stateBefore) | |
| deepFreeze(stateBefore) | |
| expect( | |
| todos(stateBefore, action) | |
| ).toEqual(stateAfter) | |
| } | |
| testAddTodo() | |
| console.log('All test passed.') | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">console.clear() | |
| const todos = (state = [], action) => { | |
| switch (action.type) { | |
| case 'ADD_TODO': | |
| return [ | |
| ...state, | |
| { | |
| id: action.id, | |
| text: action.text, | |
| completed: false | |
| } | |
| ] | |
| default: | |
| return state | |
| } | |
| } | |
| const testAddTodo = () => { | |
| const stateBefore = []; | |
| const action = { | |
| type: 'ADD_TODO', | |
| id: 0, | |
| text: 'Learn Redux' | |
| } | |
| const stateAfter = [{ | |
| id: 0, | |
| text: 'Learn Redux', | |
| completed: false | |
| }] | |
| deepFreeze(stateBefore) | |
| deepFreeze(stateBefore) | |
| expect( | |
| todos(stateBefore, action) | |
| ).toEqual(stateAfter) | |
| } | |
| testAddTodo() | |
| console.log('All test passed.')</script></body> | |
| </html> |
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| console.clear() | |
| const todos = (state = [], action) => { | |
| switch (action.type) { | |
| case 'ADD_TODO': | |
| return [ | |
| ...state, | |
| { | |
| id: action.id, | |
| text: action.text, | |
| completed: false | |
| } | |
| ] | |
| default: | |
| return state | |
| } | |
| } | |
| const testAddTodo = () => { | |
| const stateBefore = []; | |
| const action = { | |
| type: 'ADD_TODO', | |
| id: 0, | |
| text: 'Learn Redux' | |
| } | |
| const stateAfter = [{ | |
| id: 0, | |
| text: 'Learn Redux', | |
| completed: false | |
| }] | |
| deepFreeze(stateBefore) | |
| deepFreeze(stateBefore) | |
| expect( | |
| todos(stateBefore, action) | |
| ).toEqual(stateAfter) | |
| } | |
| testAddTodo() | |
| console.log('All test passed.') |
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