1 files changed, 88 insertions, 0 deletions
diff --git a/tests/unit/src/com/android/telephony/imsmedia/ImsMediaTest.java b/tests/unit/src/com/android/telephony/imsmedia/ImsMediaTest.java
new file mode 100644
index 00000000..759e6f32
--- /dev/null
+++ b/tests/unit/src/com/android/telephony/imsmedia/ImsMediaTest.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2023 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.telephony.imsmedia;
+
+import static org.junit.Assert.fail;
+
+import android.testing.TestableLooper;
+
+import org.junit.After;
+import org.junit.Before;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ImsMediaTest {
+    protected List<TestableLooper> mTestableLoopers = new ArrayList<>();
+    protected TestableLooper mTestableLooper;
+    protected Object mTestClass;
+
+    @Before
+    public void setUp() {
+        mTestableLooper = TestableLooper.get(mTestClass);
+        if (mTestableLooper != null) {
+            monitorTestableLooper(mTestableLooper);
+        }
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        if (!mTestableLoopers.isEmpty()) {
+            for (TestableLooper looper : mTestableLoopers) {
+                looper.getLooper().quit();
+            }
+        }
+        // Unmonitor TestableLooper for ImsMediaTest class
+        if (mTestableLooper != null) {
+            unmonitorTestableLooper(mTestableLooper);
+        }
+        // Destroy all newly created TestableLoopers so they can be reused
+        for (TestableLooper looper : mTestableLoopers) {
+            looper.destroy();
+        }
+        TestableLooper.remove(mTestClass);
+
+    }
+
+    private void monitorTestableLooper(TestableLooper looper) {
+        if (!mTestableLoopers.contains(looper)) {
+            mTestableLoopers.add(looper);
+        }
+    }
+
+    private void unmonitorTestableLooper(TestableLooper looper) {
+        if (mTestableLoopers.contains(looper)) {
+            mTestableLoopers.remove(looper);
+        }
+    }
+
+    private boolean areAllTestableLoopersIdle() {
+        for (TestableLooper looper : mTestableLoopers) {
+            if (!looper.getLooper().getQueue().isIdle()) return false;
+        }
+        return true;
+    }
+
+    public void processAllMessages() {
+        if (mTestableLoopers.isEmpty()) {
+            fail("mTestableLoopers is empty. Please make sure to add @RunWithLooper annotation");
+        }
+        while (!areAllTestableLoopersIdle()) {
+            for (TestableLooper looper : mTestableLoopers) looper.processAllMessages();
+        }
+    }
+}