mirror of https://github.com/grpc/grpc-node.git
89 lines
2.9 KiB
JavaScript
89 lines
2.9 KiB
JavaScript
var assert = require('assert');
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var grpc = require('bindings')('grpc.node');
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var Server = require('../server');
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var port_picker = require('../port_picker');
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/**
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* This is used for testing functions with multiple asynchronous calls that
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* can happen in different orders. This should be passed the number of async
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* function invocations that can occur last, and each of those should call this
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* function's return value
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* @param {function()} done The function that should be called when a test is
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* complete.
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* @param {number} count The number of calls to the resulting function if the
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* test passes.
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* @return {function()} The function that should be called at the end of each
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* sequence of asynchronous functions.
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*/
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function multiDone(done, count) {
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return function() {
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count -= 1;
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if (count <= 0) {
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done();
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}
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};
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}
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/**
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* Responds to every request with the same data as a response
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* @param {Stream} stream
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*/
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function echoHandler(stream) {
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stream.pipe(stream);
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}
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describe('echo server', function() {
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it('should echo inputs as responses', function(done) {
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done = multiDone(done, 4);
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port_picker.nextAvailablePort(function(port) {
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var server = new Server();
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server.bind(port);
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server.register('echo', echoHandler);
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server.start();
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var req_text = 'echo test string';
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var status_text = 'OK';
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var channel = new grpc.Channel(port);
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var deadline = new Date();
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deadline.setSeconds(deadline.getSeconds() + 3);
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var call = new grpc.Call(channel,
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'echo',
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deadline);
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call.startInvoke(function(event) {
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assert.strictEqual(event.type,
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grpc.completionType.INVOKE_ACCEPTED);
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call.startWrite(
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new Buffer(req_text),
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function(event) {
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assert.strictEqual(event.type,
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grpc.completionType.WRITE_ACCEPTED);
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assert.strictEqual(event.data, grpc.opError.OK);
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call.writesDone(function(event) {
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assert.strictEqual(event.type,
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grpc.completionType.FINISH_ACCEPTED);
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assert.strictEqual(event.data, grpc.opError.OK);
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done();
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});
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}, 0);
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call.startRead(function(event) {
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assert.strictEqual(event.type, grpc.completionType.READ);
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assert.strictEqual(event.data.toString(), req_text);
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done();
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});
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},function(event) {
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assert.strictEqual(event.type,
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grpc.completionType.CLIENT_METADATA_READ);
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done();
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},function(event) {
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assert.strictEqual(event.type, grpc.completionType.FINISHED);
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var status = event.data;
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assert.strictEqual(status.code, grpc.status.OK);
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assert.strictEqual(status.details, status_text);
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server.shutdown();
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done();
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}, 0);
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});
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});
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});
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