46 lines
1.6 KiB
TypeScript
46 lines
1.6 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 { ExponentMapping } from '../../../src/aggregator/exponential-histogram/mapping/ExponentMapping';
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import { LogarithmMapping } from '../../../src/aggregator/exponential-histogram/mapping/LogarithmMapping';
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import { getMapping } from '../../../src/aggregator/exponential-histogram/mapping/getMapping';
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import * as assert from 'assert';
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const MIN_SCALE = -10;
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const MAX_SCALE = 20;
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describe('getMapping', () => {
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it('returns correct mapping for all scales', () => {
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for (let scale = MIN_SCALE; scale <= MAX_SCALE; scale++) {
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const mapping = getMapping(scale);
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if (scale > 0) {
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assert.ok(mapping instanceof LogarithmMapping);
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} else {
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assert.ok(mapping instanceof ExponentMapping);
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}
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assert.strictEqual(mapping.scale, scale);
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}
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});
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it('throws for invalid scales', () => {
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assert.throws(() => {
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getMapping(MIN_SCALE - 1);
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});
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assert.throws(() => {
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getMapping(MAX_SCALE + 1);
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});
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});
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});
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