I created a simple Webapp using express.js and want to test it with jasmine-node. Works fine so far but my problem is that I have to start the server manually every time before I can run my tests.
Could you help me on how to write a spec-helper that runs the server (with another port then my development one) just for the tests and then kills it afterwards?
This is what I do:
I have a server.js file inside the root of my node project that sets up the node application server (with express) and exports 2 methods:
exports.start = function( config, readyCallback ) {
if(!this.server) {
this.server = app.listen( config.port, function() {
console.log('Server running on port %d in %s mode', config.port, app.settings.env);
// callback to call when the server is ready
if(readyCallback) {
readyCallback();
}
});
}
};
exports.close = function() {
this.server.close();
};
The app.js file will be simple at this point:
var server = require('./server');
server.start( { port: 8000 } );
So the files/folder basic structure would be the following:
src
app.js
server.js
Having this separation will allow you to run the server normally:
node src/app.js
..and/or require it from a custom node script, which could be a node script (or a jake/grunt/whatever task) that executes your tests like this:
/** my-test-task.js */
// util that spawns a child process
var spawn = require('child_process').spawn;
// reference to our node application server
var server = require('./path/to/server.js');
// starts the server
server.start( { port: 8000 }, function() {
// on server ready launch the jasmine-node process with your test file
var jasmineNode = spawn('jasmine-node', [ '.path/to/test/file.js' ]);
// logs process stdout/stderr to the console
function logToConsole(data) {
console.log(String(data));
}
jasmineNode.stdout.on('data', logToConsole);
jasmineNode.stderr.on('data', logToConsole);
jasmineNode.on('exit', function(exitCode) {
// when jasmine-node is done, shuts down the application server
server.close();
}
});
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