opentelemetry-js/experimental/packages/api-logs/test/api/api.test.ts

72 lines
2.3 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 { Logger, ProxyLoggerProvider, logs } from '../../src';
import { NoopLogger } from '../../src/NoopLogger';
import { NoopLoggerProvider } from '../../src/NoopLoggerProvider';
describe('API', () => {
const dummyLogger = new NoopLogger();
it('should expose a logger provider via getLoggerProvider', () => {
assert.ok(logs.getLoggerProvider() instanceof ProxyLoggerProvider);
assert.ok(
(logs.getLoggerProvider() as ProxyLoggerProvider).getDelegate() instanceof
NoopLoggerProvider
);
});
describe('GlobalLoggerProvider', () => {
beforeEach(() => {
logs.disable();
});
it('should use the global logger provider', () => {
logs.setGlobalLoggerProvider(new TestLoggerProvider());
const logger = logs.getLoggerProvider().getLogger('name');
assert.deepStrictEqual(logger, dummyLogger);
});
it('should not allow overriding global provider if already set', () => {
const provider1 = new TestLoggerProvider();
const provider2 = new TestLoggerProvider();
logs.setGlobalLoggerProvider(provider1);
assert.equal(logs.getLoggerProvider(), provider1);
logs.setGlobalLoggerProvider(provider2);
assert.equal(logs.getLoggerProvider(), provider1);
});
});
describe('getLogger', () => {
beforeEach(() => {
logs.disable();
});
it('should return a logger instance from global provider', () => {
logs.setGlobalLoggerProvider(new TestLoggerProvider());
const logger = logs.getLogger('myLogger');
assert.deepStrictEqual(logger, dummyLogger);
});
});
class TestLoggerProvider extends NoopLoggerProvider {
override getLogger(): Logger {
return dummyLogger;
}
}
});