1 files changed, 94 insertions, 0 deletions

diff --git a/platform/android/MapboxGLAndroidSDKRenderTest/src/main/java/com/mapbox/mapboxsdk/test/render/FileUtils.java b/platform/android/MapboxGLAndroidSDKRenderTest/src/main/java/com/mapbox/mapboxsdk/test/render/FileUtils.java
new file mode 100644
index 0000000000..5792a84472
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKRenderTest/src/main/java/com/mapbox/mapboxsdk/test/render/FileUtils.java
@@ -0,0 +1,94 @@
+package com.mapbox.mapboxsdk.test.render;
+
+import android.content.res.AssetManager;
+import android.graphics.Bitmap;
+import android.os.Environment;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class FileUtils {
+
+  public static File createTestResultRootFolder() {
+    File testResultDir = new File(getRoot());
+    if (testResultDir.exists()) {
+      // cleanup old files
+      deleteRecursive(testResultDir);
+    }
+
+    if (!testResultDir.mkdirs()) {
+      throw new RuntimeException("can't create root test directory");
+    }
+    return testResultDir;
+  }
+
+  private static String getRoot(){
+    return Environment.getExternalStorageDirectory()
+      + File.separator + "mapbox" + File.separator + "render";
+  }
+
+  public static void deleteRecursive(File fileOrDirectory) {
+    if (fileOrDirectory.isDirectory()) {
+      File[] files = fileOrDirectory.listFiles();
+      if (files != null) {
+        for (File file : files) {
+          deleteRecursive(file);
+        }
+      }
+    }
+
+    if (!fileOrDirectory.delete()) {
+      Log.e("TAG", "can't delete directory");
+    }
+  }
+
+  public static String createTestDirectory(String testName) {
+    File testDir = new File(getRoot() + File.separator + testName);
+    if (!testDir.exists()) {
+      if (!testDir.mkdirs()) {
+        throw new RuntimeException("can't create sub directory for " + testName);
+      }
+    }
+    return testDir.getAbsolutePath();
+  }
+
+  public static void writeTestResultToDisk(String testPath, Bitmap testResult) {
+    String filePath = testPath + "/actual.png";
+    try (FileOutputStream out = new FileOutputStream(filePath)) {
+      testResult.compress(Bitmap.CompressFormat.PNG, 100, out);
+    } catch (IOException exception) {
+      Log.e("TAG", "exception", exception);
+    }
+  }
+
+  public static boolean copyAsset(AssetManager assetManager,
+                                   String fromAssetPath, String toPath) {
+    InputStream in;
+    OutputStream out;
+    try {
+      in = assetManager.open(fromAssetPath);
+      new File(toPath).createNewFile();
+      out = new FileOutputStream(toPath);
+      copyFile(in, out);
+      in.close();
+      out.flush();
+      out.close();
+      return true;
+    } catch(Exception e) {
+      e.printStackTrace();
+      return false;
+    }
+  }
+
+  private static void copyFile(InputStream in, OutputStream out) throws IOException {
+    byte[] buffer = new byte[1024];
+    int read;
+    while((read = in.read(buffer)) != -1){
+      out.write(buffer, 0, read);
+    }
+  }
+}
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