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Simple TODO (Reducer + Tests) // source http://jsbin.com/sixuzoy
<!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>
// 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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