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+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+var assert = require('assert');
+var grpc = require('bindings')('grpc.node');
+var Server = require('../server');
+var port_picker = require('../port_picker');
+
+/**
+ * This is used for testing functions with multiple asynchronous calls that
+ * can happen in different orders. This should be passed the number of async
+ * function invocations that can occur last, and each of those should call this
+ * function's return value
+ * @param {function()} done The function that should be called when a test is
+ * complete.
+ * @param {number} count The number of calls to the resulting function if the
+ * test passes.
+ * @return {function()} The function that should be called at the end of each
+ * sequence of asynchronous functions.
+ */
+function multiDone(done, count) {
+ return function() {
+ count -= 1;
+ if (count <= 0) {
+ done();
+ }
+ };
+}
+
+/**
+ * Responds to every request with the same data as a response
+ * @param {Stream} stream
+ */
+function echoHandler(stream) {
+ stream.pipe(stream);
+}
+
+describe('echo server', function() {
+ it('should echo inputs as responses', function(done) {
+ done = multiDone(done, 4);
+ port_picker.nextAvailablePort(function(port) {
+ var server = new Server();
+ server.bind(port);
+ server.register('echo', echoHandler);
+ server.start();
+
+ var req_text = 'echo test string';
+ var status_text = 'OK';
+
+ var channel = new grpc.Channel(port);
+ var deadline = new Date();
+ deadline.setSeconds(deadline.getSeconds() + 3);
+ var call = new grpc.Call(channel,
+ 'echo',
+ deadline);
+ call.startInvoke(function(event) {
+ assert.strictEqual(event.type,
+ grpc.completionType.INVOKE_ACCEPTED);
+ call.startWrite(
+ new Buffer(req_text),
+ function(event) {
+ assert.strictEqual(event.type,
+ grpc.completionType.WRITE_ACCEPTED);
+ assert.strictEqual(event.data, grpc.opError.OK);
+ call.writesDone(function(event) {
+ assert.strictEqual(event.type,
+ grpc.completionType.FINISH_ACCEPTED);
+ assert.strictEqual(event.data, grpc.opError.OK);
+ done();
+ });
+ }, 0);
+ call.startRead(function(event) {
+ assert.strictEqual(event.type, grpc.completionType.READ);
+ assert.strictEqual(event.data.toString(), req_text);
+ done();
+ });
+ },function(event) {
+ assert.strictEqual(event.type,
+ grpc.completionType.CLIENT_METADATA_READ);
+ done();
+ },function(event) {
+ assert.strictEqual(event.type, grpc.completionType.FINISHED);
+ var status = event.data;
+ assert.strictEqual(status.code, grpc.status.OK);
+ assert.strictEqual(status.details, status_text);
+ server.shutdown();
+ done();
+ }, 0);
+ });
+ });
+});