Add `android_ravenwood_test` build rule

Modeled after android_robolectric_test.

Bug: 292141694
Test: m nothing --no-skip-soong-tests
Test: m hoststubgen ravenwood-runtime tradefed atest && atest-dev HostStubGenTest-framework-test
Merged-in: Ibef8953db45b86264c8a827868793b42f8f2d6ab
Change-Id: Ibef8953db45b86264c8a827868793b42f8f2d6ab
diff --git a/java/Android.bp b/java/Android.bp
index 2585cd2..54b36ab 100644
--- a/java/Android.bp
+++ b/java/Android.bp
@@ -67,6 +67,7 @@
         "plugin.go",
         "prebuilt_apis.go",
         "proto.go",
+        "ravenwood.go",
         "robolectric.go",
         "rro.go",
         "sdk.go",
@@ -107,6 +108,7 @@
         "plugin_test.go",
         "prebuilt_apis_test.go",
         "proto_test.go",
+        "ravenwood_test.go",
         "rro_test.go",
         "sdk_library_test.go",
         "sdk_test.go",
diff --git a/java/ravenwood.go b/java/ravenwood.go
new file mode 100644
index 0000000..85f64a8
--- /dev/null
+++ b/java/ravenwood.go
@@ -0,0 +1,184 @@
+// Copyright 2023 Google Inc. All rights reserved.
+//
+// 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 java
+
+import (
+	"android/soong/android"
+	"android/soong/tradefed"
+
+	"github.com/google/blueprint/proptools"
+)
+
+func init() {
+	RegisterRavenwoodBuildComponents(android.InitRegistrationContext)
+}
+
+func RegisterRavenwoodBuildComponents(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("android_ravenwood_test", ravenwoodTestFactory)
+	ctx.RegisterModuleType("android_ravenwood_libgroup", ravenwoodLibgroupFactory)
+}
+
+var ravenwoodTag = dependencyTag{name: "ravenwood"}
+
+const ravenwoodUtilsName = "ravenwood-utils"
+const ravenwoodRuntimeName = "ravenwood-runtime"
+
+type ravenwoodTest struct {
+	Library
+
+	testProperties testProperties
+	testConfig     android.Path
+
+	forceOSType   android.OsType
+	forceArchType android.ArchType
+}
+
+func ravenwoodTestFactory() android.Module {
+	module := &ravenwoodTest{}
+
+	module.addHostAndDeviceProperties()
+	module.AddProperties(&module.testProperties)
+
+	module.Module.dexpreopter.isTest = true
+	module.Module.linter.properties.Lint.Test = proptools.BoolPtr(true)
+
+	module.testProperties.Test_suites = []string{"ravenwood-tests"}
+	module.testProperties.Test_options.Unit_test = proptools.BoolPtr(false)
+
+	InitJavaModule(module, android.DeviceSupported)
+	android.InitDefaultableModule(module)
+
+	return module
+}
+
+func (r *ravenwoodTest) InstallInTestcases() bool { return true }
+func (r *ravenwoodTest) InstallForceOS() (*android.OsType, *android.ArchType) {
+	return &r.forceOSType, &r.forceArchType
+}
+func (r *ravenwoodTest) TestSuites() []string {
+	return r.testProperties.Test_suites
+}
+
+func (r *ravenwoodTest) DepsMutator(ctx android.BottomUpMutatorContext) {
+	r.Library.DepsMutator(ctx)
+
+	// Generically depend on the runtime so that it's installed together with us
+	ctx.AddVariationDependencies(nil, ravenwoodTag, ravenwoodRuntimeName)
+
+	// Directly depend on any utils so that we link against them
+	utils := ctx.AddVariationDependencies(nil, ravenwoodTag, ravenwoodUtilsName)[0]
+	if utils != nil {
+		for _, lib := range utils.(*ravenwoodLibgroup).ravenwoodLibgroupProperties.Libs {
+			ctx.AddVariationDependencies(nil, libTag, lib)
+		}
+	}
+}
+
+func (r *ravenwoodTest) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	r.forceOSType = ctx.Config().BuildOS
+	r.forceArchType = ctx.Config().BuildArch
+
+	r.testConfig = tradefed.AutoGenTestConfig(ctx, tradefed.AutoGenTestConfigOptions{
+		TestConfigProp:         r.testProperties.Test_config,
+		TestConfigTemplateProp: r.testProperties.Test_config_template,
+		TestSuites:             r.testProperties.Test_suites,
+		AutoGenConfig:          r.testProperties.Auto_gen_config,
+		DeviceTemplate:         "${RavenwoodTestConfigTemplate}",
+		HostTemplate:           "${RavenwoodTestConfigTemplate}",
+	})
+
+	r.Library.GenerateAndroidBuildActions(ctx)
+
+	// Start by depending on all files installed by dependancies
+	var installDeps android.InstallPaths
+	for _, dep := range ctx.GetDirectDepsWithTag(ravenwoodTag) {
+		for _, installFile := range dep.FilesToInstall() {
+			installDeps = append(installDeps, installFile)
+		}
+	}
+
+	// Also depend on our config
+	installPath := android.PathForModuleInstall(ctx, r.BaseModuleName())
+	installConfig := ctx.InstallFile(installPath, ctx.ModuleName()+".config", r.testConfig)
+	installDeps = append(installDeps, installConfig)
+
+	// Finally install our JAR with all dependencies
+	ctx.InstallFile(installPath, ctx.ModuleName()+".jar", r.outputFile, installDeps...)
+}
+
+func (r *ravenwoodTest) AndroidMkEntries() []android.AndroidMkEntries {
+	entriesList := r.Library.AndroidMkEntries()
+	entries := &entriesList[0]
+	entries.ExtraEntries = append(entries.ExtraEntries,
+		func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
+			entries.SetBool("LOCAL_UNINSTALLABLE_MODULE", true)
+			entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", "ravenwood-tests")
+			if r.testConfig != nil {
+				entries.SetPath("LOCAL_FULL_TEST_CONFIG", r.testConfig)
+			}
+		})
+	return entriesList
+}
+
+type ravenwoodLibgroupProperties struct {
+	Libs []string
+}
+
+type ravenwoodLibgroup struct {
+	android.ModuleBase
+
+	ravenwoodLibgroupProperties ravenwoodLibgroupProperties
+
+	forceOSType   android.OsType
+	forceArchType android.ArchType
+}
+
+func ravenwoodLibgroupFactory() android.Module {
+	module := &ravenwoodLibgroup{}
+	module.AddProperties(&module.ravenwoodLibgroupProperties)
+
+	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+	return module
+}
+
+func (r *ravenwoodLibgroup) InstallInTestcases() bool { return true }
+func (r *ravenwoodLibgroup) InstallForceOS() (*android.OsType, *android.ArchType) {
+	return &r.forceOSType, &r.forceArchType
+}
+func (r *ravenwoodLibgroup) TestSuites() []string {
+	return []string{"ravenwood-tests"}
+}
+
+func (r *ravenwoodLibgroup) DepsMutator(ctx android.BottomUpMutatorContext) {
+	// Always depends on our underlying libs
+	for _, lib := range r.ravenwoodLibgroupProperties.Libs {
+		ctx.AddVariationDependencies(nil, ravenwoodTag, lib)
+	}
+}
+
+func (r *ravenwoodLibgroup) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	r.forceOSType = ctx.Config().BuildOS
+	r.forceArchType = ctx.Config().BuildArch
+
+	// Install our runtime into expected location for packaging
+	installPath := android.PathForModuleInstall(ctx, r.BaseModuleName())
+	for _, lib := range r.ravenwoodLibgroupProperties.Libs {
+		libModule := ctx.GetDirectDepWithTag(lib, ravenwoodTag)
+		libJar := android.OutputFileForModule(ctx, libModule, "")
+		ctx.InstallFile(installPath, lib+".jar", libJar)
+	}
+
+	// Normal build should perform install steps
+	ctx.Phony(r.BaseModuleName(), android.PathForPhony(ctx, r.BaseModuleName()+"-install"))
+}
diff --git a/java/ravenwood_test.go b/java/ravenwood_test.go
new file mode 100644
index 0000000..4ae1d7c
--- /dev/null
+++ b/java/ravenwood_test.go
@@ -0,0 +1,113 @@
+// Copyright 2022 Google Inc. All rights reserved.
+//
+// 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 java
+
+import (
+	"testing"
+
+	"android/soong/android"
+)
+
+var prepareRavenwoodRuntime = android.GroupFixturePreparers(
+	android.FixtureRegisterWithContext(func(ctx android.RegistrationContext) {
+		RegisterRavenwoodBuildComponents(ctx)
+	}),
+	android.FixtureAddTextFile("ravenwood/Android.bp", `
+		java_library_static {
+			name: "framework-minus-apex.ravenwood",
+			srcs: ["Framework.java"],
+		}
+		java_library_static {
+			name: "framework-services.ravenwood",
+			srcs: ["Services.java"],
+		}
+		java_library_static {
+			name: "framework-rules.ravenwood",
+			srcs: ["Rules.java"],
+		}
+		android_ravenwood_libgroup {
+			name: "ravenwood-runtime",
+			libs: [
+				"framework-minus-apex.ravenwood",
+				"framework-services.ravenwood",
+			],
+		}
+		android_ravenwood_libgroup {
+			name: "ravenwood-utils",
+			libs: [
+				"framework-rules.ravenwood",
+			],
+		}
+	`),
+)
+
+var installPathPrefix = "out/soong/host/linux-x86/testcases"
+
+func TestRavenwoodRuntime(t *testing.T) {
+	ctx := android.GroupFixturePreparers(
+		PrepareForIntegrationTestWithJava,
+		prepareRavenwoodRuntime,
+	).RunTest(t)
+
+	// Verify that our runtime depends on underlying libs
+	CheckModuleHasDependency(t, ctx.TestContext, "ravenwood-runtime", "android_common", "framework-minus-apex.ravenwood")
+	CheckModuleHasDependency(t, ctx.TestContext, "ravenwood-runtime", "android_common", "framework-services.ravenwood")
+	CheckModuleHasDependency(t, ctx.TestContext, "ravenwood-utils", "android_common", "framework-rules.ravenwood")
+
+	// Verify that we've emitted artifacts in expected location
+	runtime := ctx.ModuleForTests("ravenwood-runtime", "android_common")
+	runtime.Output(installPathPrefix + "/ravenwood-runtime/framework-minus-apex.ravenwood.jar")
+	runtime.Output(installPathPrefix + "/ravenwood-runtime/framework-services.ravenwood.jar")
+	utils := ctx.ModuleForTests("ravenwood-utils", "android_common")
+	utils.Output(installPathPrefix + "/ravenwood-utils/framework-rules.ravenwood.jar")
+}
+
+func TestRavenwoodTest(t *testing.T) {
+	ctx := android.GroupFixturePreparers(
+		PrepareForIntegrationTestWithJava,
+		prepareRavenwoodRuntime,
+	).RunTestWithBp(t, `
+		android_ravenwood_test {
+			name: "ravenwood-test",
+			srcs: ["Test.java"],
+			sdk_version: "test_current",
+		}
+	`)
+
+	// Verify that our test depends on underlying libs
+	CheckModuleHasDependency(t, ctx.TestContext, "ravenwood-test", "android_common", "ravenwood-buildtime")
+	CheckModuleHasDependency(t, ctx.TestContext, "ravenwood-test", "android_common", "ravenwood-utils")
+
+	module := ctx.ModuleForTests("ravenwood-test", "android_common")
+	classpath := module.Rule("javac").Args["classpath"]
+
+	// Verify that we're linking against test_current
+	android.AssertStringDoesContain(t, "classpath", classpath, "android_test_stubs_current.jar")
+	// Verify that we're linking against utils
+	android.AssertStringDoesContain(t, "classpath", classpath, "framework-rules.ravenwood.jar")
+	// Verify that we're *NOT* linking against runtime
+	android.AssertStringDoesNotContain(t, "classpath", classpath, "framework-minus-apex.ravenwood.jar")
+	android.AssertStringDoesNotContain(t, "classpath", classpath, "framework-services.ravenwood.jar")
+
+	// Verify that we've emitted test artifacts in expected location
+	outputJar := module.Output(installPathPrefix + "/ravenwood-test/ravenwood-test.jar")
+	module.Output(installPathPrefix + "/ravenwood-test/ravenwood-test.config")
+
+	// Verify that we're going to install underlying libs
+	orderOnly := outputJar.OrderOnly.Strings()
+	android.AssertStringListContains(t, "orderOnly", orderOnly, installPathPrefix+"/ravenwood-runtime/framework-minus-apex.ravenwood.jar")
+	android.AssertStringListContains(t, "orderOnly", orderOnly, installPathPrefix+"/ravenwood-runtime/framework-services.ravenwood.jar")
+	android.AssertStringListContains(t, "orderOnly", orderOnly, installPathPrefix+"/ravenwood-utils/framework-rules.ravenwood.jar")
+}