1 files changed, 53 insertions, 0 deletions
diff --git a/tests/src/com/android/providers/downloads/MockitoHelper.java b/tests/src/com/android/providers/downloads/MockitoHelper.java
new file mode 100644
index 00000000..485128d8
--- /dev/null
+++ b/tests/src/com/android/providers/downloads/MockitoHelper.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.providers.downloads;
+
+import android.util.Log;
+
+/**
+ * Helper for Mockito-based test cases.
+ */
+public final class MockitoHelper {
+    private static final String TAG = "MockitoHelper";
+
+    private ClassLoader mOriginalClassLoader;
+    private Thread mContextThread;
+
+    /**
+     * Creates a new helper, which in turn will set the context classloader so
+     * it can load Mockito resources.
+     *
+     * @param packageClass test case class
+     */
+    public void setUp(Class<?> packageClass) throws Exception {
+        // makes a copy of the context classloader
+        mContextThread = Thread.currentThread();
+        mOriginalClassLoader = mContextThread.getContextClassLoader();
+        ClassLoader newClassLoader = packageClass.getClassLoader();
+        Log.v(TAG, "Changing context classloader from " + mOriginalClassLoader
+                + " to " + newClassLoader);
+        mContextThread.setContextClassLoader(newClassLoader);
+    }
+
+    /**
+     * Restores the context classloader to the previous value.
+     */
+    public void tearDown() throws Exception {
+        Log.v(TAG, "Restoring context classloader to " + mOriginalClassLoader);
+        mContextThread.setContextClassLoader(mOriginalClassLoader);
+    }
+}