1 files changed, 76 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/utils/PerfTestingUtils.java b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/utils/PerfTestingUtils.java
new file mode 100644
index 0000000000..543ae5e668
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/testapp/utils/PerfTestingUtils.java
@@ -0,0 +1,76 @@
+package com.mapbox.mapboxsdk.testapp.utils;
+
+import android.content.Context;
+import android.os.Environment;
+import android.support.test.InstrumentationRegistry;
+
+import java.io.File;
+
+public class PerfTestingUtils {
+  /**
+   * Retrieve the directory where test files should be written to.
+   * This directory is local to the application and removed when the app is uninstalled.
+   */
+  public static File getTestDir(String className, String testName) {
+
+    File rootDir = Environment.getExternalStorageDirectory();//getAppContext().getFilesDir();
+
+    // Create a test data subdirectory.
+    File testFileDir = new File(rootDir, "testdata");
+    if (getTranslatedTestName(className, testName) != null) {
+      testFileDir = new File(testFileDir, getTranslatedTestName(className, testName));
+    }
+
+    if (!testFileDir.exists()) {
+      if (!testFileDir.mkdirs()) {
+        throw new RuntimeException("Unable to create test file directory.");
+      }
+    }
+    return testFileDir;
+
+  }
+
+  /**
+   * Retrieve the app-under-test's {@code Context}.
+   */
+  public static Context getAppContext() {
+    return InstrumentationRegistry.getInstrumentation().getTargetContext();
+  }
+
+  /**
+   * Retrieve a file handle that is within the testing directory where tests should be written to.
+   */
+  public static File getTestRunFile(String filename) {
+    return new File(getTestDir(null, null), filename);
+  }
+
+  /**
+   * Retrieve the test run directory where tests should be written to.
+   */
+  public static File getTestRunDir() {
+    return getTestDir(null, null);
+  }
+
+  private static String getTranslatedTestName(String className, String testName) {
+    if (className == null || testName == null) {
+      return null;
+    }
+    String base = className + "_" + testName;
+
+    // Shorten the common strings so "com.google.android" comes out as "c.g.a" for brevity.
+    base = base.replace("com", "c")
+      .replace("google", "g")
+      .replace("android", "a")
+      .replace("perfmatters", "pm")
+      .replace("automatingperformancetesting", "apt");
+    return base;
+
+  }
+
+  /**
+   * Retrieve a file handle that is within the testing directory where tests should be written to.
+   */
+  public static File getTestFile(String className, String testName, String filename) {
+    return new File(getTestDir(className, testName), filename);
+  }
+}