react-native-fs/IntegrationTests/FSTest.js

133 lines
3.0 KiB
JavaScript

'use strict';
var RCTTestModule = require('NativeModules').TestModule;
var React = require('react-native');
var {
Text,
View,
} = React;
var RNFS = require('react-native-fs');
var DEBUG = false;
// setup in componentDidMount
var done;
var updateMessage;
function runTestCase(description, fn) {
updateMessage(description);
fn();
}
function expectTrue(condition, message) {
if (!condition) {
throw new Error(message);
}
}
function expectEqual(lhs, rhs, testname) {
expectTrue(
lhs === rhs,
'Error in test ' + testname + ': expected ' + rhs + ', got ' + lhs
);
}
function expectFSNoError(err) {
expectTrue(err === null, 'Unexpected FS error: ' + JSON.stringify(err));
}
function testWriteAndReadFile() {
var path = RNFS.DocumentDirectoryPath + '/test.txt';
var text = 'Lorem ipsum dolor sit amet';
var readText;
RNFS.writeFile(path, text)
.then((success) => {
updateMessage('FILE WRITTEN!');
return RNFS.readFile(path);
})
.then((contents) => {
updateMessage('FILE READ! Contents:');
readText = contents;
expectEqual(text, readText, 'testWriteAndReadFile');
updateMessage('readFile correctly returned' + readText);
})
.finally(() => {
runTestCase('testCreateAndDeleteFile', testCreateAndDeleteFile);
})
.done();//promise done needed to throw exception so that in case test fails,error is propagated
}
function testCreateAndDeleteFile() {
var path = RNFS.DocumentDirectoryPath + '/test.txt';
var text = 'Lorem ipsum dolor sit amet';
var readText;
RNFS.writeFile(path, text)
.then((success) => {
updateMessage('FILE CREATED!');
return RNFS.unlink(path);
})
.spread((success, path) => {
updateMessage('FILE DELETED!' + success + ',' + path);
return RNFS.stat(path);
})
.then((statResult) => {
updateMessage('*****' + statResult);
if (statResult.isFile()) {
updateMessage('FILE STILL EXISTS');
}
})
.catch((err) => {
updateMessage('catch' + err);
expectTrue(true,'File is deleted');
})
.finally(() => {
done(); //testrunners done
})
.done(); //promise done needed to throw exception so that in case test fails,error is propagated
}
var FSTest = React.createClass({
getInitialState() {
return {
messages: 'Initializing...',
done: false,
};
},
componentDidMount() {
done = () => this.setState({
done: true
}, RCTTestModule.markTestCompleted);
updateMessage = (msg) => {
this.setState({
messages: this.state.messages.concat('\n' + msg)
});
DEBUG && console.log(msg);
};
testWriteAndReadFile();
},
render() {
return (
<View style={{backgroundColor: 'white', padding: 40}}>
<Text>
{this.constructor.displayName + ': '}
{this.state.done ? 'Done' : 'Testing...'}
{'\n\n' + this.state.messages}
</Text>
</View>
);
}
});
module.exports = FSTest;