react-native/IntegrationTests/AsyncStorageTest.js

184 lines
5.4 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @flow
*/
'use strict';
var React = require('react-native');
var {
AsyncStorage,
Text,
View,
} = React;
var { TestModule } = React.NativeModules;
var deepDiffer = require('deepDiffer');
var DEBUG = false;
var KEY_1 = 'key_1';
var VAL_1 = 'val_1';
var KEY_2 = 'key_2';
var VAL_2 = 'val_2';
var KEY_MERGE = 'key_merge';
var VAL_MERGE_1 = {'foo': 1, 'bar': {'hoo': 1, 'boo': 1}, 'moo': {'a': 3}};
var VAL_MERGE_2 = {'bar': {'hoo': 2}, 'baz': 2, 'moo': {'a': 3}};
var VAL_MERGE_EXPECT =
{'foo': 1, 'bar': {'hoo': 2, 'boo': 1}, 'baz': 2, 'moo': {'a': 3}};
// setup in componentDidMount
var done = (result : ?boolean) => {};
var updateMessage = (message : string ) => {};
function runTestCase(description : string, fn) {
updateMessage(description);
fn();
}
function expectTrue(condition : boolean, message : string) {
if (!condition) {
throw new Error(message);
}
}
function expectEqual(lhs, rhs, testname : string) {
expectTrue(
!deepDiffer(lhs, rhs),
'Error in test ' + testname + ': expected\n' + JSON.stringify(rhs) +
'\ngot\n' + JSON.stringify(lhs)
);
}
function expectAsyncNoError(place, err) {
if (err instanceof Error) {
err = err.message;
}
expectTrue(err === null, 'Unexpected error in ' + place + ': ' + JSON.stringify(err));
}
function testSetAndGet() {
AsyncStorage.setItem(KEY_1, VAL_1, (err1) => {
expectAsyncNoError('testSetAndGet/setItem', err1);
AsyncStorage.getItem(KEY_1, (err2, result) => {
expectAsyncNoError('testSetAndGet/getItem', err2);
expectEqual(result, VAL_1, 'testSetAndGet setItem');
updateMessage('get(key_1) correctly returned ' + result);
runTestCase('should get null for missing key', testMissingGet);
});
});
}
function testMissingGet() {
AsyncStorage.getItem(KEY_2, (err, result) => {
expectAsyncNoError('testMissingGet/setItem', err);
expectEqual(result, null, 'testMissingGet');
updateMessage('missing get(key_2) correctly returned ' + result);
runTestCase('check set twice results in a single key', testSetTwice);
});
}
function testSetTwice() {
AsyncStorage.setItem(KEY_1, VAL_1, ()=>{
AsyncStorage.setItem(KEY_1, VAL_1, ()=>{
AsyncStorage.getItem(KEY_1, (err, result) => {
expectAsyncNoError('testSetTwice/setItem', err);
expectEqual(result, VAL_1, 'testSetTwice');
updateMessage('setTwice worked as expected');
runTestCase('test removeItem', testRemoveItem);
});
});
});
}
function testRemoveItem() {
AsyncStorage.setItem(KEY_1, VAL_1, ()=>{
AsyncStorage.setItem(KEY_2, VAL_2, ()=>{
AsyncStorage.getAllKeys((err, result) => {
expectAsyncNoError('testRemoveItem/getAllKeys', err);
expectTrue(
result.indexOf(KEY_1) >= 0 && result.indexOf(KEY_2) >= 0,
'Missing KEY_1 or KEY_2 in ' + '(' + result + ')'
);
updateMessage('testRemoveItem - add two items');
AsyncStorage.removeItem(KEY_1, (err2) => {
expectAsyncNoError('testRemoveItem/removeItem', err2);
updateMessage('delete successful ');
AsyncStorage.getItem(KEY_1, (err3, result2) => {
expectAsyncNoError('testRemoveItem/getItem', err3);
expectEqual(
result2,
null,
'testRemoveItem: key_1 present after delete'
);
updateMessage('key properly removed ');
AsyncStorage.getAllKeys((err4, result3) => {
expectAsyncNoError('testRemoveItem/getAllKeys', err4);
expectTrue(
result3.indexOf(KEY_1) === -1,
'Unexpected: KEY_1 present in ' + result3
);
updateMessage('proper length returned.');
runTestCase('should merge values', testMerge);
});
});
});
});
});
});
}
function testMerge() {
AsyncStorage.setItem(KEY_MERGE, JSON.stringify(VAL_MERGE_1), (err1) => {
expectAsyncNoError('testMerge/setItem', err1);
AsyncStorage.mergeItem(KEY_MERGE, JSON.stringify(VAL_MERGE_2), (err2) => {
expectAsyncNoError('testMerge/mergeItem', err2);
AsyncStorage.getItem(KEY_MERGE, (err3, result) => {
expectAsyncNoError('testMerge/setItem', err3);
expectEqual(JSON.parse(result), VAL_MERGE_EXPECT, 'testMerge');
updateMessage('objects deeply merged\nDone!');
done();
});
});
});
}
var AsyncStorageTest = React.createClass({
getInitialState() {
return {
messages: 'Initializing...',
done: false,
};
},
componentDidMount() {
done = () => this.setState({done: true}, TestModule.markTestCompleted);
updateMessage = (msg) => {
this.setState({messages: this.state.messages.concat('\n' + msg)});
DEBUG && console.log(msg);
};
AsyncStorage.clear(testSetAndGet);
},
render() {
return (
<View style={{backgroundColor: 'white', padding: 40}}>
<Text>
{this.constructor.displayName + ': '}
{this.state.done ? 'Done' : 'Testing...'}
{'\n\n' + this.state.messages}
</Text>
</View>
);
}
});
AsyncStorageTest.displayName = 'AsyncStorageTest';
module.exports = AsyncStorageTest;