grpc-node/packages/grpc-js/test/test-global-subchannel-pool.ts

131 lines
3.5 KiB
TypeScript

/*
* Copyright 2023 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.
*
*/
import * as assert from 'assert';
import * as path from 'path';
import * as grpc from '../src';
import {sendUnaryData, Server, ServerCredentials, ServerUnaryCall, ServiceClientConstructor, ServiceError} from '../src';
import {loadProtoFile} from './common';
const protoFile = path.join(__dirname, 'fixtures', 'echo_service.proto');
const echoService =
loadProtoFile(protoFile).EchoService as ServiceClientConstructor;
describe.only('Global subchannel pool', () => {
let server: Server;
let serverPort: number;
let client1: InstanceType<grpc.ServiceClientConstructor>;
let client2: InstanceType<grpc.ServiceClientConstructor>;
let promises: Promise<any>[];
before(done => {
server = new Server();
server.addService(echoService.service, {
echo(call: ServerUnaryCall<any, any>, callback: sendUnaryData<any>) {
callback(null, call.request);
},
});
server.bindAsync(
'localhost:0', ServerCredentials.createInsecure(), (err, port) => {
assert.ifError(err);
serverPort = port;
server.start();
done();
});
});
beforeEach(() => {
promises = [];
})
after(done => {
server.tryShutdown(done);
});
function callService(client: InstanceType<grpc.ServiceClientConstructor>) {
return new Promise<void>((resolve) => {
const request = {value: 'test value', value2: 3};
client.echo(request, (error: ServiceError, response: any) => {
assert.ifError(error);
assert.deepStrictEqual(response, request);
resolve();
});
})
}
function connect() {
const grpcOptions = {
'grpc.use_local_subchannel_pool': 0,
}
client1 = new echoService(
`127.0.0.1:${serverPort}`, grpc.credentials.createInsecure(),
grpcOptions);
client2 = new echoService(
`127.0.0.1:${serverPort}`, grpc.credentials.createInsecure(),
grpcOptions);
}
/* This is a regression test for a bug where client1.close in the
* waitForReady callback would cause the subchannel to transition to IDLE
* even though client2 is also using it. */
it('Should handle client.close calls in waitForReady',
done => {
connect();
promises.push(new Promise<void>((resolve) => {
client1.waitForReady(Date.now() + 50, (error) => {
assert.ifError(error);
client1.close();
resolve();
});
}))
promises.push(new Promise<void>((resolve) => {
client2.waitForReady(Date.now() + 50, (error) => {
assert.ifError(error);
resolve();
});
}))
Promise.all(promises).then(() => {done()});
})
it('Call the service', done => {
promises.push(callService(client2));
Promise.all(promises).then(() => {
done();
});
})
it('Should complete the client lifecycle without error', done => {
setTimeout(() => {
client1.close();
client2.close();
done()
}, 500);
});
});