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Simple TODO (Reducer + Tests) // source http://jsbin.com/sixuzoy
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Simple TODO (Reducer + Tests)</title> | |
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.5.2/redux.js"></script> | |
<script src="https://fb.me/react-15.1.0.js"></script> | |
<script src="https://fb.me/react-dom-15.1.0.js"></script> | |
<script src="http://wzrd.in/standalone/expect@latest"></script> | |
<script src="http://wzrd.in/standalone/deep-freeze@latest"></script> | |
<meta charset="utf-8"> | |
<meta name="viewport" content="width=device-width"> | |
<title>JS Bin</title> | |
</head> | |
<body> | |
<div id="root"> | |
<script id="jsbin-javascript"> | |
// Reducer function | |
"use strict"; | |
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; | |
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } } | |
var todos = function todos(state, action) { | |
if (state === undefined) state = []; | |
switch (action.type) { | |
case "ADD_TODO": | |
return [].concat(_toConsumableArray(state), [{ | |
id: action.id, | |
text: action.text, | |
completed: false | |
}]); | |
case "TOGGLE_TODO": | |
return state.map(function (todo) { | |
if (todo.id !== action.id) { | |
return todo; | |
} | |
return _extends({}, todo, { | |
completed: !todo.completed | |
}); | |
}); | |
default: | |
return state; | |
} | |
}; | |
var testAddTodo = function testAddTodo() { | |
var stateBefore = []; | |
var action = { | |
type: "ADD_TODO", | |
id: 0, | |
text: "Learn Redux" | |
}; | |
var stateAfter = [{ | |
id: 0, | |
text: "Learn Redux", | |
completed: false | |
}]; | |
deepFreeze(stateBefore); | |
deepFreeze(action); | |
expect(todos(stateBefore, action)).toEqual(stateAfter); | |
//console.log(todos (stateBefore, action)); | |
}; | |
var testToggleTodo = function testToggleTodo() { | |
var stateBefore = [{ | |
id: 0, | |
text: "Learn Redux", | |
completed: false | |
}, { | |
id: 1, | |
text: "Epic Redux", | |
completed: false | |
}]; | |
var action = { | |
type: "TOGGLE_TODO", | |
id: 1 | |
}; | |
var stateAfter = [{ | |
id: 0, | |
text: "Learn Redux", | |
completed: false | |
}, { | |
id: 1, | |
text: "Epic Redux", | |
completed: true | |
}]; | |
deepFreeze(stateBefore); | |
deepFreeze(action); | |
expect(todos(stateBefore, action)).toEqual(stateAfter); | |
}; | |
testAddTodo(); | |
testToggleTodo(); | |
console.log("Test Passed"); | |
</script> | |
<script id="jsbin-source-javascript" type="text/javascript"> | |
// Reducer function | |
const todos = (state = [], action) => { | |
switch (action.type){ | |
case "ADD_TODO": | |
return [ | |
...state, | |
{ | |
id: action.id, | |
text: action.text, | |
completed:false | |
} | |
]; | |
case "TOGGLE_TODO": | |
return state.map(todo => { | |
if (todo.id !== action.id){ | |
return todo; | |
} | |
return { | |
...todo, | |
completed: !todo.completed | |
}; | |
}); | |
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(action); | |
expect( | |
todos (stateBefore, action) | |
).toEqual(stateAfter); | |
//console.log(todos (stateBefore, action)); | |
}; | |
const testToggleTodo = () => { | |
const stateBefore = [ | |
{ | |
id: 0, | |
text: "Learn Redux", | |
completed:false | |
}, | |
{ | |
id: 1, | |
text: "Epic Redux", | |
completed:false | |
} | |
]; | |
const action = { | |
type: "TOGGLE_TODO", | |
id: 1 | |
}; | |
const stateAfter = [ | |
{ | |
id: 0, | |
text: "Learn Redux", | |
completed:false | |
}, | |
{ | |
id: 1, | |
text: "Epic Redux", | |
completed:true | |
} | |
]; | |
deepFreeze(stateBefore); | |
deepFreeze(action); | |
expect( | |
todos (stateBefore, action) | |
).toEqual(stateAfter); | |
}; | |
testAddTodo(); | |
testToggleTodo(); | |
console.log("Test Passed");</script></body> | |
</html> |
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// Reducer function | |
"use strict"; | |
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; | |
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } } | |
var todos = function todos(state, action) { | |
if (state === undefined) state = []; | |
switch (action.type) { | |
case "ADD_TODO": | |
return [].concat(_toConsumableArray(state), [{ | |
id: action.id, | |
text: action.text, | |
completed: false | |
}]); | |
case "TOGGLE_TODO": | |
return state.map(function (todo) { | |
if (todo.id !== action.id) { | |
return todo; | |
} | |
return _extends({}, todo, { | |
completed: !todo.completed | |
}); | |
}); | |
default: | |
return state; | |
} | |
}; | |
var testAddTodo = function testAddTodo() { | |
var stateBefore = []; | |
var action = { | |
type: "ADD_TODO", | |
id: 0, | |
text: "Learn Redux" | |
}; | |
var stateAfter = [{ | |
id: 0, | |
text: "Learn Redux", | |
completed: false | |
}]; | |
deepFreeze(stateBefore); | |
deepFreeze(action); | |
expect(todos(stateBefore, action)).toEqual(stateAfter); | |
//console.log(todos (stateBefore, action)); | |
}; | |
var testToggleTodo = function testToggleTodo() { | |
var stateBefore = [{ | |
id: 0, | |
text: "Learn Redux", | |
completed: false | |
}, { | |
id: 1, | |
text: "Epic Redux", | |
completed: false | |
}]; | |
var action = { | |
type: "TOGGLE_TODO", | |
id: 1 | |
}; | |
var stateAfter = [{ | |
id: 0, | |
text: "Learn Redux", | |
completed: false | |
}, { | |
id: 1, | |
text: "Epic Redux", | |
completed: true | |
}]; | |
deepFreeze(stateBefore); | |
deepFreeze(action); | |
expect(todos(stateBefore, action)).toEqual(stateAfter); | |
}; | |
testAddTodo(); | |
testToggleTodo(); | |
console.log("Test Passed"); |
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