// Copyright 2013 Lovell Fuller and others. // SPDX-License-Identifier: Apache-2.0 'use strict'; const assert = require('assert'); const fixtures = require('../fixtures'); describe('Test fixtures', function () { describe('assertMaxColourDistance', function () { it('should throw an Error when images have a different number of channels', function () { assert.throws(function () { fixtures.assertMaxColourDistance(fixtures.inputPngOverlayLayer1, fixtures.inputJpg); }); }); it('should throw an Error when images have different dimensions', function () { assert.throws(function () { fixtures.assertMaxColourDistance(fixtures.inputJpg, fixtures.inputJpgWithExif); }); }); it('should accept a zero threshold when comparing an image to itself', function () { const image = fixtures.inputPngOverlayLayer0; fixtures.assertMaxColourDistance(image, image, 0); }); it('should accept a numeric threshold for two different images', function () { fixtures.assertMaxColourDistance(fixtures.inputPngOverlayLayer0, fixtures.inputPngOverlayLayer1, 100); }); }); });