66 lines
2.4 KiB
JavaScript
66 lines
2.4 KiB
JavaScript
/* Copyright 2017 Mozilla Foundation
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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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* http://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 { MurmurHash3_64 } from '../../src/core/murmurhash3';
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describe('MurmurHash3_64', function() {
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it('instantiates without seed', function() {
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var hash = new MurmurHash3_64();
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expect(hash).toEqual(jasmine.any(MurmurHash3_64));
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});
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it('instantiates with seed', function() {
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var hash = new MurmurHash3_64(1);
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expect(hash).toEqual(jasmine.any(MurmurHash3_64));
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});
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var hexDigestExpected = 'f61cfdbfdae0f65e';
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var sourceText = 'test';
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var sourceCharCodes = [116, 101, 115, 116]; // 't','e','s','t'
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it('correctly generates a hash from a string', function() {
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var hash = new MurmurHash3_64();
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hash.update(sourceText);
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expect(hash.hexdigest()).toEqual(hexDigestExpected);
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});
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it('correctly generates a hash from a Uint8Array', function() {
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var hash = new MurmurHash3_64();
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hash.update(new Uint8Array(sourceCharCodes));
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expect(hash.hexdigest()).toEqual(hexDigestExpected);
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});
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it('correctly generates a hash from a Uint32Array', function() {
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var hash = new MurmurHash3_64();
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hash.update(new Uint32Array(new Uint8Array(sourceCharCodes).buffer));
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expect(hash.hexdigest()).toEqual(hexDigestExpected);
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});
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it('changes the hash after update without seed', function() {
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var hash = new MurmurHash3_64();
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var hexdigest1, hexdigest2;
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hash.update(sourceText);
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hexdigest1 = hash.hexdigest();
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hash.update(sourceText);
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hexdigest2 = hash.hexdigest();
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expect(hexdigest1).not.toEqual(hexdigest2);
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});
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it('changes the hash after update with seed', function() {
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var hash = new MurmurHash3_64(1);
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var hexdigest1, hexdigest2;
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hash.update(sourceText);
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hexdigest1 = hash.hexdigest();
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hash.update(sourceText);
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hexdigest2 = hash.hexdigest();
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expect(hexdigest1).not.toEqual(hexdigest2);
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});
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});
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