33 lines
1.4 KiB
Kotlin
33 lines
1.4 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.helpers
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import android.graphics.Bitmap
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import android.graphics.Color
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import org.junit.Assert.assertEquals
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/**
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* Asserts the two bitmaps are the same by ensuring their dimensions, config, and
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* pixel data are the same (within the provided delta): this is the same metrics that
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* [Bitmap.sameAs] uses.
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*/
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fun assertEqualsWithDelta(expectedB: Bitmap, actualB: Bitmap, delta: Float) {
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assertEquals("widths should be equal", expectedB.width, actualB.width)
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assertEquals("heights should be equal", expectedB.height, actualB.height)
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assertEquals("config should be equal", expectedB.config, actualB.config)
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for (i in 0 until expectedB.width) {
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for (j in 0 until expectedB.height) {
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val ePx = expectedB.getPixel(i, j)
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val aPx = actualB.getPixel(i, j)
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val warn = "Pixel ${i}x$j"
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assertEquals("$warn a", Color.alpha(ePx).toFloat(), Color.alpha(aPx).toFloat(), delta)
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assertEquals("$warn r", Color.red(ePx).toFloat(), Color.red(aPx).toFloat(), delta)
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assertEquals("$warn g", Color.green(ePx).toFloat(), Color.green(aPx).toFloat(), delta)
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assertEquals("$warn b", Color.blue(ePx).toFloat(), Color.blue(aPx).toFloat(), delta)
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}
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}
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}
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