Add tests for preload and APEX measurement

A new host-side test "BinaryTransparencyHostTest" is added to drive the
actual test on device. The host can be used to set up the testing
environment (e.g. update a preload, or later install MBA), then ask the
helper app "BinaryTransparencyTestApp" to verify returned value of
private APIs in the main service.

Since the APIs are private (@hide, because we're not ready to make
anything public yet), the (bundled) helper app needs to be compiled with
`platform_apis: true`.

Plus, since the service is not accessible to apps by sepolicy, the test
has to run with SELinux disabled. An alternative is to add a
userdebug_or_eng rule in sepolicy, but it's better to avoid adding rule
for one specific test, and isolate the setup here (in AndroidTest.xml).

The test is not yet added to TEST_MAPPING/presubmit. Once it runs
successfully for a few runs in postsubmit, we should graduate it to
presubmit.

Test: atest BinaryTransparencyHostTest
Test: atest BinaryTransparencyServiceTest
Bug: 265244016
Change-Id: Ibd87f4cf6a2ae989ddfa8eaf9494cff5d34005ed

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/BinaryTransparencyHostTest/AndroidTest.xml b/tests/BinaryTransparencyHostTest/AndroidTest.xml
new file mode 100644
index 000000000000..e0d11c0c1097
--- /dev/null
+++ b/tests/BinaryTransparencyHostTest/AndroidTest.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<configuration description="Binary Transparency integration test">
+    <option name="test-suite-tag" value="apct" />
+
+    <!-- Service is not exposed to apps. Disable SELinux for testing purpose. -->
+    <target_preparer class="com.android.tradefed.targetprep.DisableSELinuxTargetPreparer" />
+
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="BinaryTransparencyTestApp.apk" />
+    </target_preparer>
+
+    <test class="com.android.compatibility.common.tradefed.testtype.JarHostTest" >
+        <option name="jar" value="BinaryTransparencyHostTest.jar" />
+        <option name="runtime-hint" value="1m" />
+    </test>
+</configuration>