Index: chrome/android/javatests/src/org/chromium/chrome/browser/test/ClearAppDataTestRule.java |
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/test/ClearAppDataTestRule.java b/chrome/android/javatests/src/org/chromium/chrome/browser/test/ClearAppDataTestRule.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..2a3009a90cbfbdb0c1ca3ebff2d0a84be5858fbb |
--- /dev/null |
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/test/ClearAppDataTestRule.java |
@@ -0,0 +1,36 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+package org.chromium.chrome.browser.test; |
+ |
+import android.content.Context; |
+ |
+import org.junit.rules.TestRule; |
+import org.junit.runner.Description; |
+import org.junit.runners.model.Statement; |
+ |
+import org.chromium.chrome.test.util.ApplicationData; |
+ |
+/** |
+ * JUnit test rule that just clears app data before each test. Having this as a rule allows us |
+ * to ensure the order it's executed in with something like RuleChain, allowing us to execute it |
+ * prior to launching the browser process. |
+ */ |
+public class ClearAppDataTestRule implements TestRule { |
+ Context mContext; |
+ |
+ public ClearAppDataTestRule(Context context) { |
+ mContext = context; |
+ } |
+ |
+ @Override |
+ public Statement apply(final Statement base, Description description) { |
+ return new Statement() { |
+ @Override |
+ public void evaluate() throws Throwable { |
+ ApplicationData.clearAppData(mContext); |
+ } |
+ }; |
+ } |
+} |