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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
'use strict';
var assert = require('assert');
var grpc = require('..');
var math = require('./math/math_pb');
var MathClient = require('./math/math_grpc_pb').MathClient;
/**
* Client to use to make requests to a running server.
*/
var math_client;
/**
* Server to test against
*/
var getServer = require('./math/math_server.js');
var server = getServer();
describe('Math client', function() {
before(function(done) {
var port_num = server.bind('0.0.0.0:0',
grpc.ServerCredentials.createInsecure());
server.start();
math_client = new MathClient('localhost:' + port_num,
grpc.credentials.createInsecure());
done();
});
after(function() {
server.forceShutdown();
});
it('should handle a single request', function(done) {
var arg = new math.DivArgs();
arg.setDividend(7);
arg.setDivisor(4);
math_client.div(arg, function handleDivResult(err, value) {
assert.ifError(err);
assert.equal(value.getQuotient(), 1);
assert.equal(value.getRemainder(), 3);
done();
});
});
it('should handle an error from a unary request', function(done) {
var arg = new math.DivArgs();
arg.setDividend(7);
arg.setDivisor(0);
math_client.div(arg, function handleDivResult(err, value) {
assert(err);
done();
});
});
it('should handle a server streaming request', function(done) {
var arg = new math.FibArgs();
arg.setLimit(7);
var call = math_client.fib(arg);
var expected_results = [1, 1, 2, 3, 5, 8, 13];
var next_expected = 0;
call.on('data', function checkResponse(value) {
assert.equal(value.getNum(), expected_results[next_expected]);
next_expected += 1;
});
call.on('status', function checkStatus(status) {
assert.strictEqual(status.code, grpc.status.OK);
done();
});
});
it('should handle a client streaming request', function(done) {
var call = math_client.sum(function handleSumResult(err, value) {
assert.ifError(err);
assert.equal(value.getNum(), 21);
});
for (var i = 0; i < 7; i++) {
var arg = new math.Num();
arg.setNum(i);
call.write(arg);
}
call.end();
call.on('status', function checkStatus(status) {
assert.strictEqual(status.code, grpc.status.OK);
done();
});
});
it('should handle a bidirectional streaming request', function(done) {
function checkResponse(index, value) {
assert.equal(value.getQuotient(), index);
assert.equal(value.getRemainder(), 1);
}
var call = math_client.divMany();
var response_index = 0;
call.on('data', function(value) {
checkResponse(response_index, value);
response_index += 1;
});
for (var i = 0; i < 7; i++) {
var arg = new math.DivArgs();
arg.setDividend(2 * i + 1);
arg.setDivisor(2);
call.write(arg);
}
call.end();
call.on('status', function checkStatus(status) {
assert.strictEqual(status.code, grpc.status.OK);
done();
});
});
it('should handle an error from a bidi request', function(done) {
var call = math_client.divMany();
call.on('data', function(value) {
assert.fail(value, undefined, 'Unexpected data response on failing call',
'!=');
});
var arg = new math.DivArgs();
arg.setDividend(7);
arg.setDivisor(0);
call.write(arg);
call.end();
call.on('error', function checkStatus(status) {
done();
});
});
});
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