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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 health = require('../health_check/health');
var health_messages = require('../health_check/v1/health_pb');
var ServingStatus = health_messages.HealthCheckResponse.ServingStatus;
var grpc = require('../');
describe('Health Checking', function() {
var statusMap = {
'': ServingStatus.SERVING,
'grpc.test.TestServiceNotServing': ServingStatus.NOT_SERVING,
'grpc.test.TestServiceServing': ServingStatus.SERVING
};
var healthServer;
var healthImpl;
var healthClient;
before(function() {
healthServer = new grpc.Server();
healthImpl = new health.Implementation(statusMap);
healthServer.addService(health.service, healthImpl);
var port_num = healthServer.bind('0.0.0.0:0',
grpc.ServerCredentials.createInsecure());
healthServer.start();
healthClient = new health.Client('localhost:' + port_num,
grpc.credentials.createInsecure());
});
after(function() {
healthServer.forceShutdown();
});
it('should say an enabled service is SERVING', function(done) {
var request = new health_messages.HealthCheckRequest();
request.setService('');
healthClient.check(request, function(err, response) {
assert.ifError(err);
assert.strictEqual(response.getStatus(), ServingStatus.SERVING);
done();
});
});
it('should say that a disabled service is NOT_SERVING', function(done) {
var request = new health_messages.HealthCheckRequest();
request.setService('grpc.test.TestServiceNotServing');
healthClient.check(request, function(err, response) {
assert.ifError(err);
assert.strictEqual(response.getStatus(), ServingStatus.NOT_SERVING);
done();
});
});
it('should say that an enabled service is SERVING', function(done) {
var request = new health_messages.HealthCheckRequest();
request.setService('grpc.test.TestServiceServing');
healthClient.check(request, function(err, response) {
assert.ifError(err);
assert.strictEqual(response.getStatus(), ServingStatus.SERVING);
done();
});
});
it('should get NOT_FOUND if the service is not registered', function(done) {
var request = new health_messages.HealthCheckRequest();
request.setService('not_registered');
healthClient.check(request, function(err, response) {
assert(err);
assert.strictEqual(err.code, grpc.status.NOT_FOUND);
done();
});
});
it('should get a different response if the status changes', function(done) {
var request = new health_messages.HealthCheckRequest();
request.setService('transient');
healthClient.check(request, function(err, response) {
assert(err);
assert.strictEqual(err.code, grpc.status.NOT_FOUND);
healthImpl.setStatus('transient', ServingStatus.SERVING);
healthClient.check(request, function(err, response) {
assert.ifError(err);
assert.strictEqual(response.getStatus(), ServingStatus.SERVING);
done();
});
});
});
});
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