Merge "[view_compiler] Add end-to-end DexBuilder tests" am: 60b722a005 am: 66f78192a9 (1bf3b364) · Commits · e / os / android_frameworks_base

startop/view_compiler/Android.bp

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		@@ -62,3 +62,22 @@ cc_test_host {
		],
		test_suites: ["general-tests"],
		}

		cc_binary_host {
		name: "dex_testcase_generator",
		defaults: ["viewcompiler_defaults"],
		srcs: ["dex_testcase_generator.cc"],
		static_libs: [
		"libviewcompiler",
		],
		}

		genrule {
		name: "generate_dex_testcases",
		tools: [":dex_testcase_generator"],
		cmd: "$(location :dex_testcase_generator) $(genDir)",
		out: [
		"simple.dex",
		"trivial.dex",
		],
		}

startop/view_compiler/README.md

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		@@ -23,3 +23,31 @@ This tool is still in its early stages and has a number of limitations.
		application.
		* This only works for apps that do not use a custom layout inflater.
		* Other limitations yet to be discovered.

		## DexBuilder Tests

		The DexBuilder has several low-level end to end tests to verify generated DEX
		code validates, runs, and has the correct behavior. There are, unfortunately, a
		number of pieces that must be added to generate new tests. Here are the
		components:

		* `dex_testcase_generator` - Written in C++ using `DexBuilder`. This runs as a
		build step produce the DEX files that will be tested on device. See the
		`genrule` named `generate_dex_testcases` in `Android.bp`. These files are then
		copied over to the device by TradeFed when running tests.
		* `DexBuilderTest` - This is a Java Language test harness that loads the
		generated DEX files and exercises methods in the file.

		To add a new DEX file test, follow these steps:
		1. Modify `dex_testcase_generator` to produce the DEX file.
		2. Add the filename to the `out` list of the `generate_dex_testcases` rule in
		`Android.bp`.
		3. Add a new `push` option to `AndroidTest.xml` to copy the DEX file to the
		device.
		4. Modify `DexBuilderTest.java` to load and exercise the new test.

		In each case, you should be able to cargo-cult the existing test cases.

		In general, you can probably get by without adding a new generated DEX file, and
		instead add more methods to the files that are already generated. In this case,
		you can skip all of steps 2 and 3 above, and simplify steps 1 and 4.

startop/view_compiler/TEST_MAPPING

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		{
		"presubmit": [
		{
		"name": "dex-builder-test"
		}
		]
		}

startop/view_compiler/dex_builder_test/Android.bp

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		//
		// Copyright (C) 2018 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 {
		name: "dex-builder-test",
		srcs: ["src/android/startop/test/DexBuilderTest.java"],
		sdk_version: "current",
		data: [":generate_dex_testcases"],
		static_libs: [
		"android-support-test",
		"guava",
		],
		manifest: "AndroidManifest.xml",
		test_config: "AndroidTest.xml",
		test_suites: ["general-tests"],
		}

startop/view_compiler/dex_builder_test/AndroidManifest.xml

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		<?xml version="1.0" encoding="utf-8"?>
		<!-- Copyright (C) 2018 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="android.startop.test" >

		<uses-sdk android:minSdkVersion="28" android:targetSdkVersion="28" />

		<application>
		<uses-library android:name="android.test.runner" />
		</application>

		<instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
		android:targetPackage="android.startop.test"
		android:label="DexBuilder Tests"/>

		</manifest>