opentelemetry-js/experimental/packages/api-logs/test/proxy-implementations/proxy-logger.test.ts

118 lines
3.1 KiB
TypeScript

/*
* Copyright The OpenTelemetry 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
*
* https://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 sinon from 'sinon';
import {
Logger,
LoggerProvider,
ProxyLogger,
ProxyLoggerProvider,
} from '../../src';
import { NoopLogger } from '../../src/NoopLogger';
describe('ProxyLogger', () => {
let provider: ProxyLoggerProvider;
const sandbox = sinon.createSandbox();
beforeEach(() => {
provider = new ProxyLoggerProvider();
});
afterEach(() => {
sandbox.restore();
});
describe('when no delegate is set', () => {
it('should return proxy loggers', () => {
const logger = provider.getLogger('test');
assert.ok(logger instanceof ProxyLogger);
});
});
describe('when delegate is set before getLogger', () => {
let delegate: LoggerProvider;
let getLoggerStub: sinon.SinonStub;
beforeEach(() => {
getLoggerStub = sandbox.stub().returns(new NoopLogger());
delegate = {
getLogger: getLoggerStub,
};
provider.setDelegate(delegate);
});
it('should return loggers directly from the delegate', () => {
const logger = provider.getLogger('test', 'v0');
sandbox.assert.calledOnce(getLoggerStub);
assert.strictEqual(getLoggerStub.firstCall.returnValue, logger);
assert.deepStrictEqual(getLoggerStub.firstCall.args, [
'test',
'v0',
undefined,
]);
});
it('should return loggers directly from the delegate with schema url', () => {
const logger = provider.getLogger('test', 'v0', {
schemaUrl: 'https://opentelemetry.io/schemas/1.7.0',
});
sandbox.assert.calledOnce(getLoggerStub);
assert.strictEqual(getLoggerStub.firstCall.returnValue, logger);
assert.deepStrictEqual(getLoggerStub.firstCall.args, [
'test',
'v0',
{ schemaUrl: 'https://opentelemetry.io/schemas/1.7.0' },
]);
});
});
describe('when delegate is set after getLogger', () => {
let logger: Logger;
let delegateProvider: LoggerProvider;
let delegateLogger: Logger;
let emitCalled: boolean;
beforeEach(() => {
emitCalled = false;
delegateLogger = {
emit() {
emitCalled = true;
},
};
logger = provider.getLogger('test');
delegateProvider = {
getLogger() {
return delegateLogger;
},
};
provider.setDelegate(delegateProvider);
});
it('should emit from the delegate logger', () => {
logger.emit({
body: 'Test',
});
assert.ok(emitCalled);
});
});
});