/
global.test.ts
76 lines (64 loc) · 2.62 KB
/
global.test.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
/*
* 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 { _global, GLOBAL_METRICS_API_KEY } from '../../src/api/global-utils';
import { NoopMeterProvider } from '../../src';
const api1 = require('../../src') as typeof import('../../src');
// clear cache and load a second instance of the api
for (const key of Object.keys(require.cache)) {
delete require.cache[key];
}
const api2 = require('../../src') as typeof import('../../src');
describe('Global Utils', () => {
// prove they are separate instances
assert.notStrictEqual(api1, api2);
// that return separate noop instances to start
assert.notStrictEqual(
api1.metrics.getMeterProvider(),
api2.metrics.getMeterProvider()
);
beforeEach(() => {
api1.metrics.disable();
api2.metrics.disable();
});
it('should change the global meter provider', () => {
const original = api1.metrics.getMeterProvider();
const newMeterProvider = new NoopMeterProvider();
api1.metrics.setGlobalMeterProvider(newMeterProvider);
assert.notStrictEqual(api1.metrics.getMeterProvider(), original);
assert.strictEqual(api1.metrics.getMeterProvider(), newMeterProvider);
});
it('should load an instance from one which was set in the other', () => {
api1.metrics.setGlobalMeterProvider(new NoopMeterProvider());
assert.strictEqual(
api1.metrics.getMeterProvider(),
api2.metrics.getMeterProvider()
);
});
it('should disable both if one is disabled', () => {
const original = api1.metrics.getMeterProvider();
api1.metrics.setGlobalMeterProvider(new NoopMeterProvider());
assert.notStrictEqual(original, api1.metrics.getMeterProvider());
api2.metrics.disable();
assert.strictEqual(original, api1.metrics.getMeterProvider());
});
it('should return the module NoOp implementation if the version is a mismatch', () => {
const original = api1.metrics.getMeterProvider();
api1.metrics.setGlobalMeterProvider(new NoopMeterProvider());
const afterSet = _global[GLOBAL_METRICS_API_KEY]!(-1);
assert.strictEqual(original, afterSet);
});
});