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diff --git a/support/src/android/support/test/InjectInstrumentation.java b/support/src/android/support/test/InjectInstrumentation.java
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+/*
+ * Copyright (C) 2012 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 android.support.test;
+
+import android.app.Instrumentation;
+import android.test.InstrumentationTestCase;
+
+import junit.framework.Test;
+
+import org.junit.Before;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Use this to inject an {@link Instrumentation} into your JUnit4-style test.
+ * <p/>
+ * To use, just add the correct annotation to an {@link Instrumentation} field like this:
+ * <pre>
+ *     &#64;InjectInstrumentation public Instrumentation mMyInstrumentation;
+ * </pre>
+ * <p/>
+ * The test runner will set the value of this field with the {@link Instrumentation} after
+ * object construction but before any {@link Before} methods are called.
+ * <p/>
+ * Declaring this in a JUnit3 test (ie a class that is a {@link Test}) will have no effect.
+ * Use {@link InstrumentationTestCase} instead for JUnit3 style tests.
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.FIELD)
+public @interface InjectInstrumentation {
+
+}