diff --git a/tests/InputMethodStressTest/Android.bp b/tests/InputMethodStressTest/Android.bp
new file mode 100644
index 0000000..131611d
--- /dev/null
+++ b/tests/InputMethodStressTest/Android.bp
@@ -0,0 +1,35 @@
+// Copyright (C) 2021 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 {
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_test {
+    name: "InputMethodStressTest",
+    srcs: ["src/**/*.java"],
+    libs: ["android.test.runner"],
+    static_libs: [
+        "androidx.test.ext.junit",
+        "androidx.test.uiautomator_uiautomator",
+        "compatibility-device-util-axt",
+        "platform-test-annotations",
+        "truth-prebuilt",
+    ],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+    sdk_version: "31",
+}
diff --git a/tests/InputMethodStressTest/AndroidManifest.xml b/tests/InputMethodStressTest/AndroidManifest.xml
new file mode 100644
index 0000000..e5d6518
--- /dev/null
+++ b/tests/InputMethodStressTest/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2021 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.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.inputmethod.stresstest">
+
+    <application>
+        <activity android:name=".TestActivity"/>
+    </application>
+
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
+         android:targetPackage="com.android.inputmethod.stresstest">
+    </instrumentation>
+</manifest>
diff --git a/tests/InputMethodStressTest/AndroidTest.xml b/tests/InputMethodStressTest/AndroidTest.xml
new file mode 100644
index 0000000..b194010
--- /dev/null
+++ b/tests/InputMethodStressTest/AndroidTest.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+<configuration description="InputMethod integration/regression test">
+    <option name="test-suite-tag" value="apct" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer" />
+
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="InputMethodStressTest.apk" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest">
+        <option name="package" value="com.android.inputmethod.stresstest" />
+    </test>
+</configuration>
diff --git a/tests/InputMethodStressTest/OWNERS b/tests/InputMethodStressTest/OWNERS
new file mode 100644
index 0000000..6bb4b17
--- /dev/null
+++ b/tests/InputMethodStressTest/OWNERS
@@ -0,0 +1,3 @@
+# Bug component: 34867
+
+include /services/core/java/com/android/server/inputmethod/OWNERS
diff --git a/tests/InputMethodStressTest/src/com/android/inputmethod/ImeOpenCloseStressTest.java b/tests/InputMethodStressTest/src/com/android/inputmethod/ImeOpenCloseStressTest.java
new file mode 100644
index 0000000..5427fd8
--- /dev/null
+++ b/tests/InputMethodStressTest/src/com/android/inputmethod/ImeOpenCloseStressTest.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2021 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.inputmethod.stresstest;
+
+import static com.android.compatibility.common.util.SystemUtil.eventually;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.app.Instrumentation;
+import android.content.Intent;
+import android.platform.test.annotations.RootPermissionTest;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
+
+@RootPermissionTest
+@RunWith(AndroidJUnit4.class)
+public class ImeOpenCloseStressTest {
+
+    private static final long TIMEOUT = TimeUnit.SECONDS.toMillis(5);
+    private static final int NUM_TEST_ITERATIONS = 100;
+
+    private Instrumentation mInstrumentation;
+
+    @Test
+    public void test() {
+        mInstrumentation = InstrumentationRegistry.getInstrumentation();
+        Intent intent = new Intent()
+                .setAction(Intent.ACTION_MAIN)
+                .setClass(mInstrumentation.getContext(), TestActivity.class)
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+        TestActivity activity = (TestActivity) mInstrumentation.startActivitySync(intent);
+        eventually(() -> assertThat(callOnMainSync(activity::hasWindowFocus)).isTrue(), TIMEOUT);
+        for (int i = 0; i < NUM_TEST_ITERATIONS; i++) {
+            mInstrumentation.runOnMainSync(activity::showIme);
+            eventually(() -> assertThat(callOnMainSync(activity::isImeShown)).isTrue(), TIMEOUT);
+            mInstrumentation.runOnMainSync(activity::hideIme);
+            eventually(() -> assertThat(callOnMainSync(activity::isImeShown)).isFalse(), TIMEOUT);
+        }
+    }
+
+    private <V> V callOnMainSync(Callable<V> callable) {
+        AtomicReference<V> result = new AtomicReference<>();
+        AtomicReference<Exception> thrownException = new AtomicReference<>();
+        mInstrumentation.runOnMainSync(() -> {
+            try {
+                result.set(callable.call());
+            } catch (Exception e) {
+                thrownException.set(e);
+            }
+        });
+        if (thrownException.get() != null) {
+            throw new RuntimeException("Exception thrown from Main thread", thrownException.get());
+        }
+        return result.get();
+    }
+}
diff --git a/tests/InputMethodStressTest/src/com/android/inputmethod/TestActivity.java b/tests/InputMethodStressTest/src/com/android/inputmethod/TestActivity.java
new file mode 100644
index 0000000..7baf037
--- /dev/null
+++ b/tests/InputMethodStressTest/src/com/android/inputmethod/TestActivity.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2021 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.inputmethod.stresstest;
+
+import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
+import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.WindowInsets;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+
+import androidx.annotation.Nullable;
+
+public class TestActivity extends Activity {
+
+    private EditText mEditText;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        LinearLayout rootView = new LinearLayout(this);
+        rootView.setOrientation(LinearLayout.VERTICAL);
+        mEditText = new EditText(this);
+        rootView.addView(mEditText, new LinearLayout.LayoutParams(MATCH_PARENT, WRAP_CONTENT));
+        setContentView(rootView);
+    }
+
+    public boolean hasWindowFocus() {
+        return mEditText.hasWindowFocus();
+    }
+
+    public boolean isImeShown() {
+        WindowInsets insets = mEditText.getRootWindowInsets();
+        return insets.isVisible(WindowInsets.Type.ime());
+    }
+
+    public void showIme() {
+        mEditText.requestFocus();
+        InputMethodManager imm = getSystemService(InputMethodManager.class);
+        imm.showSoftInput(mEditText, 0);
+    }
+
+    public void hideIme() {
+        InputMethodManager imm = getSystemService(InputMethodManager.class);
+        imm.hideSoftInputFromWindow(mEditText.getWindowToken(), 0);
+    }
+}