139 lines
3.7 KiB
TypeScript
139 lines
3.7 KiB
TypeScript
/*
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* Copyright The OpenTelemetry Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import * as assert from 'assert';
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import { createContextKey, ROOT_CONTEXT } from '../../../src/context/context';
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import { NoopContextManager } from '../../../src/context/NoopContextManager';
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describe('NoopContextManager', () => {
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let contextManager: NoopContextManager;
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describe('.enable()', () => {
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it('should work', () => {
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assert.doesNotThrow(() => {
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contextManager = new NoopContextManager();
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assert.ok(
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contextManager.enable() === contextManager,
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'should return this'
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);
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});
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});
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});
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describe('.disable()', () => {
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it('should work', () => {
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assert.doesNotThrow(() => {
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assert.ok(
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contextManager.disable() === contextManager,
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'should return this'
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);
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});
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contextManager.enable();
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});
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});
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describe('.with()', () => {
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it('should run the callback (ROOT_CONTEXT as target)', done => {
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contextManager.with(ROOT_CONTEXT, done);
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});
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it('should run the callback (object as target)', done => {
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const key = createContextKey('test key 1');
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const test = ROOT_CONTEXT.setValue(key, 1);
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contextManager.with(test, () => {
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assert.strictEqual(
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contextManager.active(),
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ROOT_CONTEXT,
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'should not have context'
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);
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return done();
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});
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});
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it('should run the callback (when disabled)', done => {
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contextManager.disable();
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contextManager.with(ROOT_CONTEXT, () => {
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contextManager.enable();
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return done();
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});
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});
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it('should forward this, arguments and return value', () => {
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function fnWithThis(this: string, a: string, b: number): string {
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assert.strictEqual(this, 'that');
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assert.strictEqual(arguments.length, 2);
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assert.strictEqual(a, 'one');
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assert.strictEqual(b, 2);
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return 'done';
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}
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const res = contextManager.with(
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ROOT_CONTEXT,
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fnWithThis,
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'that',
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'one',
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2
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);
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assert.strictEqual(res, 'done');
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assert.strictEqual(
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contextManager.with(ROOT_CONTEXT, () => 3.14),
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3.14
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);
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});
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});
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describe('.active()', () => {
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it('should always return ROOT_CONTEXT (when enabled)', () => {
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assert.strictEqual(
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contextManager.active(),
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ROOT_CONTEXT,
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'should not have context'
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);
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});
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it('should always return ROOT_CONTEXT (when disabled)', () => {
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contextManager.disable();
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assert.strictEqual(
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contextManager.active(),
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ROOT_CONTEXT,
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'should not have context'
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);
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contextManager.enable();
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});
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});
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describe('.bind()', () => {
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it('should return the same target (when enabled)', () => {
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const test = { a: 1 };
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assert.deepStrictEqual(
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contextManager.bind(contextManager.active(), test),
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test
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);
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});
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it('should return the same target (when disabled)', () => {
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contextManager.disable();
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const test = { a: 1 };
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assert.deepStrictEqual(
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contextManager.bind(contextManager.active(), test),
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test
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);
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contextManager.enable();
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});
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});
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});
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