91 lines
3.3 KiB
Kotlin
91 lines
3.3 KiB
Kotlin
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/*
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* Nextcloud - Android Client
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*
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* SPDX-FileCopyrightText: 2025 Alper Ozturk <alper.ozturk@nextcloud.com>
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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package com.nextcloud.extensions
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import android.graphics.Bitmap
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import android.graphics.Color
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import androidx.exifinterface.media.ExifInterface
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import com.nextcloud.utils.rotateBitmapViaExif
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import junit.framework.TestCase.assertEquals
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import org.junit.Test
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class BitmapRotationTests {
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private fun createTestBitmap(): Bitmap = Bitmap.createBitmap(2, 2, Bitmap.Config.ARGB_8888).apply {
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setPixel(0, 0, Color.RED)
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setPixel(1, 0, Color.GREEN)
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setPixel(0, 1, Color.BLUE)
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setPixel(1, 1, Color.YELLOW)
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}
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@Test
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fun testRotateBitmapViaExifWhenGivenNullBitmapShouldReturnNull() {
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val rotated = null.rotateBitmapViaExif(ExifInterface.ORIENTATION_ROTATE_90)
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assertEquals(null, rotated)
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}
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@Test
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fun testRotateBitmapViaExifWhenGivenNormalOrientationShouldReturnSameBitmap() {
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val bmp = createTestBitmap()
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val rotated = bmp.rotateBitmapViaExif(ExifInterface.ORIENTATION_NORMAL)
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assertEquals(bmp, rotated)
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}
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@Test
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fun testRotateBitmapViaExifWhenGivenRotate90ShouldReturnRotatedBitmap() {
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val bmp = createTestBitmap()
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val rotated = bmp.rotateBitmapViaExif(ExifInterface.ORIENTATION_ROTATE_90)!!
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assertEquals(bmp.width, rotated.height)
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assertEquals(bmp.height, rotated.width)
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assertEquals(Color.BLUE, rotated.getPixel(0, 0))
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assertEquals(Color.RED, rotated.getPixel(1, 0))
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assertEquals(Color.YELLOW, rotated.getPixel(0, 1))
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assertEquals(Color.GREEN, rotated.getPixel(1, 1))
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}
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@Test
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fun testRotateBitmapViaExifWhenGivenRotate180ShouldReturnRotatedBitmap() {
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val bmp = createTestBitmap()
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val rotated = bmp.rotateBitmapViaExif(ExifInterface.ORIENTATION_ROTATE_180)!!
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assertEquals(bmp.width, rotated.width)
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assertEquals(bmp.height, rotated.height)
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assertEquals(Color.YELLOW, rotated.getPixel(0, 0))
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assertEquals(Color.BLUE, rotated.getPixel(1, 0))
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assertEquals(Color.GREEN, rotated.getPixel(0, 1))
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assertEquals(Color.RED, rotated.getPixel(1, 1))
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}
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@Test
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fun testRotateBitmapViaExifWhenGivenFlipHorizontalShouldReturnFlippedBitmap() {
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val bmp = createTestBitmap()
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val rotated = bmp.rotateBitmapViaExif(ExifInterface.ORIENTATION_FLIP_HORIZONTAL)!!
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assertEquals(bmp.width, rotated.width)
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assertEquals(bmp.height, rotated.height)
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assertEquals(Color.GREEN, rotated.getPixel(0, 0))
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assertEquals(Color.RED, rotated.getPixel(1, 0))
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assertEquals(Color.YELLOW, rotated.getPixel(0, 1))
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assertEquals(Color.BLUE, rotated.getPixel(1, 1))
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}
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@Test
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fun testRotateBitmapViaExifWhenGivenFlipVerticalShouldReturnFlippedBitmap() {
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val bmp = createTestBitmap()
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val rotated = bmp.rotateBitmapViaExif(ExifInterface.ORIENTATION_FLIP_VERTICAL)!!
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assertEquals(bmp.width, rotated.width)
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assertEquals(bmp.height, rotated.height)
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assertEquals(Color.BLUE, rotated.getPixel(0, 0))
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assertEquals(Color.YELLOW, rotated.getPixel(1, 0))
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assertEquals(Color.RED, rotated.getPixel(0, 1))
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assertEquals(Color.GREEN, rotated.getPixel(1, 1))
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}
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}
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