53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
import {isSimilar, matchers} from './ImageSimilarity.mjs';
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import ImageRegion from './ImageRegion.mjs';
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describe('ImageSimilarity', () => {
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let inputA = null;
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let inputB = null;
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let inputC = null;
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beforeEach(() => {
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inputA = ImageRegion.fromFunction(100, 100,
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({x, y}) => (Math.sin(x * 0.2) * Math.cos(y * 0.3)));
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inputB = ImageRegion.fromFunction(100, 100,
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({x, y}) => (Math.sin(x * 0.2 + 0.1) * Math.cos(y * 0.3 - 0.1)));
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inputC = ImageRegion.fromFunction(100, 100,
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({x}) => (Math.sin(x * 0.2)));
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});
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describe('isSimilar', () => {
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it('returns true for identical images', () => {
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expect(isSimilar(inputA, inputA)).toBe(true);
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});
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it('returns true for similar images', () => {
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expect(isSimilar(inputA, inputB)).toBe(true);
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});
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it('returns false for different images', () => {
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expect(isSimilar(inputA, inputC)).toBe(false);
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});
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});
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describe('ImageRegion.isSimilar', () => {
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it('is added to the ImageRegion prototype', () => {
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expect(inputA.isSimilar).toEqual(jasmine.any(Function));
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});
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it('invokes isSimilar', () => {
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const output = inputA.isSimilar(inputA);
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expect(output).toEqual(true);
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});
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});
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describe('jasmine.toLookLike', () => {
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it('can be registered with Jasmine', () => {
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jasmine.addMatchers(matchers);
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expect(inputA).toLookLike(inputB);
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expect(inputA).not.toLookLike(inputC);
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});
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});
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});
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