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add image generator helper for load test
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38 changes: 38 additions & 0 deletions
38
sample/src/androidTest/java/com/esafirm/sample/helper/ImageGeneratorScenario.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,38 @@ | ||
| package com.esafirm.sample.helper | ||
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| import androidx.test.filters.LargeTest | ||
| import androidx.test.rule.ActivityTestRule | ||
| import androidx.test.rule.GrantPermissionRule | ||
| import androidx.test.runner.AndroidJUnit4 | ||
| import com.esafirm.sample.MainActivity | ||
| import com.esafirm.sample.utils.ImageGenerator | ||
| import org.junit.Ignore | ||
| import org.junit.Rule | ||
| import org.junit.Test | ||
| import org.junit.runner.RunWith | ||
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| /** | ||
| * Remove ignore for generating only | ||
| */ | ||
| @LargeTest | ||
| @Ignore | ||
| @RunWith(AndroidJUnit4::class) | ||
| class ImageGeneratorScenario { | ||
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| @Rule | ||
| @JvmField | ||
| var testRule = ActivityTestRule(MainActivity::class.java) | ||
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| @Rule | ||
| @JvmField | ||
| var grantPermissionRule = GrantPermissionRule.grant( | ||
| "android.permission.WRITE_EXTERNAL_STORAGE" | ||
| ) | ||
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| @Test | ||
| fun generateImages() { | ||
| val generator = ImageGenerator() | ||
| generator.generateImages(30_000) | ||
| } | ||
| } |
117 changes: 117 additions & 0 deletions
117
sample/src/androidTest/java/com/esafirm/sample/utils/ImageGenerator.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,117 @@ | ||
| package com.esafirm.sample.utils | ||
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| import android.content.ContentResolver | ||
| import android.content.ContentValues | ||
| import android.content.Context | ||
| import android.graphics.Bitmap | ||
| import android.graphics.Canvas | ||
| import android.graphics.Color | ||
| import android.graphics.Paint | ||
| import android.net.Uri | ||
| import android.os.Environment | ||
| import android.provider.MediaStore | ||
| import android.util.Log | ||
| import androidx.test.core.app.ApplicationProvider | ||
| import java.io.ByteArrayOutputStream | ||
| import java.io.File | ||
| import java.io.IOException | ||
| import java.io.OutputStream | ||
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| class ImageGenerator { | ||
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| companion object { | ||
| private const val DEFAULT_SIZE = 100 | ||
| } | ||
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| fun generateImages(count: Int) { | ||
| val context: Context = ApplicationProvider.getApplicationContext() | ||
| val listOfFiles = (0 until count).map { | ||
| val number = it.toString().padStart(5, '0') | ||
| "ip_generated_${number}.jpg" | ||
| } | ||
| val dir = context.getExternalFilesDir(Environment.DIRECTORY_DCIM) | ||
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| if (dir?.exists()?.not() == true) { | ||
| dir.mkdirs() | ||
| } | ||
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| listOfFiles.forEachIndexed { index, path -> | ||
| val file = File(dir, path) | ||
| if (file.exists().not()) { | ||
| file.createNewFile() | ||
| } | ||
| Log.d("Generator", "Generating image in ${file.path}…") | ||
| generateBitmapOnGivenFile(file, index.toString()) | ||
| addImageToGallery(context.contentResolver, file) | ||
| } | ||
| } | ||
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| private fun addImageToGallery(cr: ContentResolver, imageFile: File): Uri? { | ||
| val values = ContentValues().apply { | ||
| put(MediaStore.Images.Media.TITLE, imageFile.name) | ||
| put(MediaStore.Images.Media.DISPLAY_NAME, imageFile.name) | ||
| put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg") | ||
| put(MediaStore.Images.Media.DATE_ADDED, System.currentTimeMillis()) | ||
| put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis()) | ||
| put(MediaStore.Images.Media.DATA, imageFile.path) | ||
| } | ||
| return cr.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values) | ||
| } | ||
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| @Throws(IOException::class) | ||
| private fun generateBitmapOnGivenFile( | ||
| file: File, | ||
| identifier: String, | ||
| width: Int = DEFAULT_SIZE, | ||
| height: Int = DEFAULT_SIZE | ||
| ) { | ||
| val stream = file.outputStream() | ||
| val bmp = createBitmap(identifier, width, height) | ||
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| writeBitmap(stream, bmp) | ||
| } | ||
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| private fun createBitmap(identifier: String, width: Int, height: Int): Bitmap { | ||
| val conf = Bitmap.Config.ARGB_8888 | ||
| val bmp = Bitmap.createBitmap(width, height, conf) | ||
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| val canvas = Canvas(bmp) | ||
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| val paint = Paint() | ||
| paint.color = Color.RED | ||
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| val widthPart = width / 10 | ||
| val heightPart = height / 10 | ||
| canvas.drawRect( | ||
| widthPart.toFloat(), | ||
| heightPart.toFloat(), | ||
| (width - widthPart).toFloat(), | ||
| (height - heightPart).toFloat(), | ||
| paint | ||
| ) | ||
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| val textPaint = Paint() | ||
| textPaint.color = Color.BLACK | ||
| textPaint.textAlign = Paint.Align.CENTER | ||
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| val xPos = canvas.width / 2 | ||
| val yPos = (canvas.height / 2 - (textPaint.descent() + textPaint.ascent()) / 2).toInt() | ||
| //((textPaint.descent() + textPaint.ascent()) / 2) is the distance from the baseline to the center. | ||
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| canvas.drawText(identifier, xPos.toFloat(), yPos.toFloat(), textPaint) | ||
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| canvas.save() | ||
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| return bmp | ||
| } | ||
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| @Throws(IOException::class) | ||
| private fun writeBitmap(stream: OutputStream, bmp: Bitmap) { | ||
| val byteArrayOutputStream = ByteArrayOutputStream() | ||
| bmp.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream) | ||
| val bitmapData = byteArrayOutputStream.toByteArray() | ||
| stream.write(bitmapData) | ||
| stream.flush() | ||
| stream.close() | ||
| } | ||
| } |