New integration test for fs-verity install and on-access verification

There are two categories of tests:

1. Package installation with .fsv_sig
  * .apk, .dm, including the split ones should all or none be installed
     with their corresponding .fsv_sig files

2. End-to-end fs-verity test of on-access verification
  * When fs-verity is enabled to a file, if the on-disk content is
    changed, the read should fail.

See class comment in ApkVerityTest.java for the test details.

Brief directory layout overview:
* src/
  - Actual test
* ApkVerityTestApp/
  - Dummy app for testing, including a split
* testdata/
  - Some artifacts, signing key and fs-verity signatures
* block_device_writer/
  - Helper binary for write a file directly on disk

Test: atest
Bug: 112039386
Change-Id: I3b8229037db682f36fda9d5cafd14caf6b39501d
diff --git a/tests/ApkVerityTest/ApkVerityTestApp/Android.bp b/tests/ApkVerityTest/ApkVerityTestApp/Android.bp
new file mode 100644
index 0000000..69632b2
--- /dev/null
+++ b/tests/ApkVerityTest/ApkVerityTestApp/Android.bp
@@ -0,0 +1,29 @@
+// Copyright (C) 2019 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.
+
+android_test_helper_app {
+  name: "ApkVerityTestApp",
+  manifest: "AndroidManifest.xml",
+  srcs: ["src/**/*.java"],
+}
+
+android_test_helper_app {
+  name: "ApkVerityTestAppSplit",
+  manifest: "feature_split/AndroidManifest.xml",
+  srcs: ["src/**/*.java"],
+  aaptflags: [
+      "--custom-package com.android.apkverity.feature_x",
+      "--package-id 0x80",
+  ],
+}
diff --git a/tests/ApkVerityTest/ApkVerityTestApp/AndroidManifest.xml b/tests/ApkVerityTest/ApkVerityTestApp/AndroidManifest.xml
new file mode 100644
index 0000000..0b3ff77
--- /dev/null
+++ b/tests/ApkVerityTest/ApkVerityTestApp/AndroidManifest.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  * Copyright (C) 2019 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.apkverity">
+    <application>
+        <activity android:name=".DummyActivity"/>
+    </application>
+</manifest>
diff --git a/tests/ApkVerityTest/ApkVerityTestApp/feature_split/AndroidManifest.xml b/tests/ApkVerityTest/ApkVerityTestApp/feature_split/AndroidManifest.xml
new file mode 100644
index 0000000..3f1a4f3
--- /dev/null
+++ b/tests/ApkVerityTest/ApkVerityTestApp/feature_split/AndroidManifest.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  * Copyright (C) 2019 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.apkverity"
+    android:isFeatureSplit="true"
+    split="feature_x">
+    <application>
+        <activity android:name=".feature_x.DummyActivity"/>
+    </application>
+</manifest>
diff --git a/tests/ApkVerityTest/ApkVerityTestApp/feature_split/src/com/android/apkverity/feature_x/DummyActivity.java b/tests/ApkVerityTest/ApkVerityTestApp/feature_split/src/com/android/apkverity/feature_x/DummyActivity.java
new file mode 100644
index 0000000..0f694c2
--- /dev/null
+++ b/tests/ApkVerityTest/ApkVerityTestApp/feature_split/src/com/android/apkverity/feature_x/DummyActivity.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2019 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.apkverity.feature_x;
+
+import android.app.Activity;
+
+/** Dummy class just to generate some dex */
+public class DummyActivity extends Activity {}
diff --git a/tests/ApkVerityTest/ApkVerityTestApp/src/com/android/apkverity/DummyActivity.java b/tests/ApkVerityTest/ApkVerityTestApp/src/com/android/apkverity/DummyActivity.java
new file mode 100644
index 0000000..837c7be
--- /dev/null
+++ b/tests/ApkVerityTest/ApkVerityTestApp/src/com/android/apkverity/DummyActivity.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2019 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.apkverity;
+
+import android.app.Activity;
+
+/** Dummy class just to generate some dex */
+public class DummyActivity extends Activity {}