java/robolectric.go - android_build_soong - Gitiles

 // Copyright 2019 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 (
 	"fmt"
 	"io"
 	"strconv"
 	"strings"

 	"android/soong/android"
 	"android/soong/java/config"
 	"android/soong/tradefed"

 	"github.com/google/blueprint/proptools"
 )

 func init() {
 	android.RegisterModuleType("android_robolectric_test", RobolectricTestFactory)
 	android.RegisterModuleType("android_robolectric_runtimes", robolectricRuntimesFactory)
 }

 var robolectricDefaultLibs = []string{
 	"mockito-robolectric-prebuilt",
 	"truth-prebuilt",
 	// TODO(ccross): this is not needed at link time
 	"junitxml",
 }

 const robolectricCurrentLib = "Robolectric_all-target"
 const robolectricPrebuiltLibPattern = "platform-robolectric-%s-prebuilt"

 var (
 	roboCoverageLibsTag = dependencyTag{name: "roboCoverageLibs"}
 	roboRuntimesTag     = dependencyTag{name: "roboRuntimes"}
 )

 type robolectricProperties struct {
 	// The name of the android_app module that the tests will run against.
 	Instrumentation_for *string

 	// Additional libraries for which coverage data should be generated
 	Coverage_libs []string

 	Test_options struct {
 		// Timeout in seconds when running the tests.
 		Timeout *int64

 		// Number of shards to use when running the tests.
 		Shards *int64
 	}

 	// The version number of a robolectric prebuilt to use from prebuilts/misc/common/robolectric
 	// instead of the one built from source in external/robolectric-shadows.
 	Robolectric_prebuilt_version *string

 	// Use /external/robolectric rather than /external/robolectric-shadows as the version of robolectri
 	// to use.  /external/robolectric closely tracks github's master, and will fully replace /external/robolectric-shadows
 	Upstream *bool
 }

 type robolectricTest struct {
 	Library

 	robolectricProperties robolectricProperties
 	testProperties        testProperties

 	libs  []string
 	tests []string

 	manifest    android.Path
 	resourceApk android.Path

 	combinedJar android.WritablePath

 	roboSrcJar android.Path

 	testConfig android.Path
 	data       android.Paths

 	forceOSType   android.OsType
 	forceArchType android.ArchType
 }

 func (r *robolectricTest) TestSuites() []string {
 	return r.testProperties.Test_suites
 }

 var _ android.TestSuiteModule = (*robolectricTest)(nil)

 func (r *robolectricTest) DepsMutator(ctx android.BottomUpMutatorContext) {
 	r.Library.DepsMutator(ctx)

 	if r.robolectricProperties.Instrumentation_for != nil {
 		ctx.AddVariationDependencies(nil, instrumentationForTag, String(r.robolectricProperties.Instrumentation_for))
 	} else {
 		ctx.PropertyErrorf("instrumentation_for", "missing required instrumented module")
 	}

 	if v := String(r.robolectricProperties.Robolectric_prebuilt_version); v != "" {
 		ctx.AddVariationDependencies(nil, libTag, fmt.Sprintf(robolectricPrebuiltLibPattern, v))
 	} else {
 		if proptools.Bool(r.robolectricProperties.Upstream) {
 			ctx.AddVariationDependencies(nil, libTag, robolectricCurrentLib+"_upstream")
 		} else {
 			ctx.AddVariationDependencies(nil, libTag, robolectricCurrentLib)
 		}
 	}

 	ctx.AddVariationDependencies(nil, libTag, robolectricDefaultLibs...)

 	ctx.AddVariationDependencies(nil, roboCoverageLibsTag, r.robolectricProperties.Coverage_libs...)

 	ctx.AddFarVariationDependencies(ctx.Config().BuildOSCommonTarget.Variations(),
 		roboRuntimesTag, "robolectric-android-all-prebuilts")
 }

 func (r *robolectricTest) 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:         "${RobolectricTestConfigTemplate}",
 		HostTemplate:           "${RobolectricTestConfigTemplate}",
 	})
 	r.data = android.PathsForModuleSrc(ctx, r.testProperties.Data)

 	roboTestConfig := android.PathForModuleGen(ctx, "robolectric").
 		Join(ctx, "com/android/tools/test_config.properties")

 	var ok bool
 	var instrumentedApp *AndroidApp

 	// TODO: this inserts paths to built files into the test, it should really be inserting the contents.
 	instrumented := ctx.GetDirectDepsWithTag(instrumentationForTag)

 	if len(instrumented) == 1 {
 		instrumentedApp, ok = instrumented[0].(*AndroidApp)
 		if !ok {
 			ctx.PropertyErrorf("instrumentation_for", "dependency must be an android_app")
 		}
 	} else if !ctx.Config().AllowMissingDependencies() {
 		panic(fmt.Errorf("expected exactly 1 instrumented dependency, got %d", len(instrumented)))
 	}

 	if instrumentedApp != nil {
 		r.manifest = instrumentedApp.mergedManifestFile
 		r.resourceApk = instrumentedApp.outputFile

 		generateRoboTestConfig(ctx, roboTestConfig, instrumentedApp)
 		r.extraResources = android.Paths{roboTestConfig}
 	}

 	r.Library.GenerateAndroidBuildActions(ctx)

 	roboSrcJar := android.PathForModuleGen(ctx, "robolectric", ctx.ModuleName()+".srcjar")

 	if instrumentedApp != nil {
 		r.generateRoboSrcJar(ctx, roboSrcJar, instrumentedApp)
 		r.roboSrcJar = roboSrcJar
 	}

 	roboTestConfigJar := android.PathForModuleOut(ctx, "robolectric_samedir", "samedir_config.jar")
 	generateSameDirRoboTestConfigJar(ctx, roboTestConfigJar)

 	combinedJarJars := android.Paths{
 		// roboTestConfigJar comes first so that its com/android/tools/test_config.properties
 		// overrides the one from r.extraResources.  The r.extraResources one can be removed
 		// once the Make test runner is removed.
 		roboTestConfigJar,
 		r.outputFile,
 	}

 	if instrumentedApp != nil {
 		combinedJarJars = append(combinedJarJars, instrumentedApp.implementationAndResourcesJar)
 	}

 	handleLibDeps := func(dep android.Module) {
 		m := ctx.OtherModuleProvider(dep, JavaInfoProvider).(JavaInfo)
 		r.libs = append(r.libs, ctx.OtherModuleName(dep))
 		if !android.InList(ctx.OtherModuleName(dep), config.FrameworkLibraries) {
 			combinedJarJars = append(combinedJarJars, m.ImplementationAndResourcesJars...)
 		}
 	}

 	for _, dep := range ctx.GetDirectDepsWithTag(libTag) {
 		handleLibDeps(dep)
 	}
 	for _, dep := range ctx.GetDirectDepsWithTag(sdkLibTag) {
 		handleLibDeps(dep)
 	}

 	r.combinedJar = android.PathForModuleOut(ctx, "robolectric_combined", r.outputFile.Base())
 	TransformJarsToJar(ctx, r.combinedJar, "combine jars", combinedJarJars, android.OptionalPath{},
 		false, nil, nil)

 	// TODO: this could all be removed if tradefed was used as the test runner, it will find everything
 	// annotated as a test and run it.
 	for _, src := range r.uniqueSrcFiles {
 		s := src.Rel()
 		if !strings.HasSuffix(s, "Test.java") && !strings.HasSuffix(s, "Test.kt") {
 			continue
 		} else if strings.HasSuffix(s, "/BaseRobolectricTest.java") {
 			continue
 		} else {
 			s = strings.TrimPrefix(s, "src/")
 		}
 		r.tests = append(r.tests, s)
 	}

 	installPath := android.PathForModuleInstall(ctx, r.BaseModuleName())
 	var installDeps android.Paths

 	if r.manifest != nil {
 		r.data = append(r.data, r.manifest)
 		installedManifest := ctx.InstallFile(installPath, ctx.ModuleName()+"-AndroidManifest.xml", r.manifest)
 		installDeps = append(installDeps, installedManifest)
 	}

 	if r.resourceApk != nil {
 		r.data = append(r.data, r.resourceApk)
 		installedResourceApk := ctx.InstallFile(installPath, ctx.ModuleName()+".apk", r.resourceApk)
 		installDeps = append(installDeps, installedResourceApk)
 	}

 	runtimes := ctx.GetDirectDepWithTag("robolectric-android-all-prebuilts", roboRuntimesTag)
 	for _, runtime := range runtimes.(*robolectricRuntimes).runtimes {
 		installDeps = append(installDeps, runtime)
 	}

 	installedConfig := ctx.InstallFile(installPath, ctx.ModuleName()+".config", r.testConfig)
 	installDeps = append(installDeps, installedConfig)

 	for _, data := range android.PathsForModuleSrc(ctx, r.testProperties.Data) {
 		installedData := ctx.InstallFile(installPath, data.Rel(), data)
 		installDeps = append(installDeps, installedData)
 	}

 	r.installFile = ctx.InstallFile(installPath, ctx.ModuleName()+".jar", r.combinedJar, installDeps...)
 }

 func generateRoboTestConfig(ctx android.ModuleContext, outputFile android.WritablePath,
 	instrumentedApp *AndroidApp) {
 	rule := android.NewRuleBuilder(pctx, ctx)

 	manifest := instrumentedApp.mergedManifestFile
 	resourceApk := instrumentedApp.outputFile

 	rule.Command().Text("rm -f").Output(outputFile)
 	rule.Command().
 		Textf(`echo "android_merged_manifest=%s" >>`, manifest.String()).Output(outputFile).Text("&&").
 		Textf(`echo "android_resource_apk=%s" >>`, resourceApk.String()).Output(outputFile).
 		// Make it depend on the files to which it points so the test file's timestamp is updated whenever the
 		// contents change
 		Implicit(manifest).
 		Implicit(resourceApk)

 	rule.Build("generate_test_config", "generate test_config.properties")
 }

 func generateSameDirRoboTestConfigJar(ctx android.ModuleContext, outputFile android.ModuleOutPath) {
 	rule := android.NewRuleBuilder(pctx, ctx)

 	outputDir := outputFile.InSameDir(ctx)
 	configFile := outputDir.Join(ctx, "com/android/tools/test_config.properties")
 	rule.Temporary(configFile)
 	rule.Command().Text("rm -f").Output(outputFile).Output(configFile)
 	rule.Command().Textf("mkdir -p $(dirname %s)", configFile.String())
 	rule.Command().
 		Text("(").
 		Textf(`echo "android_merged_manifest=%s-AndroidManifest.xml" &&`, ctx.ModuleName()).
 		Textf(`echo "android_resource_apk=%s.apk"`, ctx.ModuleName()).
 		Text(") >>").Output(configFile)
 	rule.Command().
 		BuiltTool("soong_zip").
 		FlagWithArg("-C ", outputDir.String()).
 		FlagWithInput("-f ", configFile).
 		FlagWithOutput("-o ", outputFile)

 	rule.Build("generate_test_config_samedir", "generate test_config.properties")
 }

 func (r *robolectricTest) generateRoboSrcJar(ctx android.ModuleContext, outputFile android.WritablePath,
 	instrumentedApp *AndroidApp) {

 	srcJarArgs := android.CopyOf(instrumentedApp.srcJarArgs)
 	srcJarDeps := append(android.Paths(nil), instrumentedApp.srcJarDeps...)

 	for _, m := range ctx.GetDirectDepsWithTag(roboCoverageLibsTag) {
 		if ctx.OtherModuleHasProvider(m, JavaInfoProvider) {
 			dep := ctx.OtherModuleProvider(m, JavaInfoProvider).(JavaInfo)
 			srcJarArgs = append(srcJarArgs, dep.SrcJarArgs...)
 			srcJarDeps = append(srcJarDeps, dep.SrcJarDeps...)
 		}
 	}

 	TransformResourcesToJar(ctx, outputFile, srcJarArgs, srcJarDeps)
 }

 func (r *robolectricTest) 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", "robolectric-tests")
 			if r.testConfig != nil {
 				entries.SetPath("LOCAL_FULL_TEST_CONFIG", r.testConfig)
 			}
 		})

 	entries.ExtraFooters = []android.AndroidMkExtraFootersFunc{
 		func(w io.Writer, name, prefix, moduleDir string) {
 			if s := r.robolectricProperties.Test_options.Shards; s != nil && *s > 1 {
 				numShards := int(*s)
 				shardSize := (len(r.tests) + numShards - 1) / numShards
 				shards := android.ShardStrings(r.tests, shardSize)
 				for i, shard := range shards {
 					r.writeTestRunner(w, name, "Run"+name+strconv.Itoa(i), shard)
 				}

 				// TODO: add rules to dist the outputs of the individual tests, or combine them together?
 				fmt.Fprintln(w, "")
 				fmt.Fprintln(w, ".PHONY:", "Run"+name)
 				fmt.Fprintln(w, "Run"+name, ": \\")
 				for i := range shards {
 					fmt.Fprintln(w, "   ", "Run"+name+strconv.Itoa(i), "\\")
 				}
 				fmt.Fprintln(w, "")
 			} else {
 				r.writeTestRunner(w, name, "Run"+name, r.tests)
 			}
 		},
 	}

 	return entriesList
 }

 func (r *robolectricTest) writeTestRunner(w io.Writer, module, name string, tests []string) {
 	fmt.Fprintln(w, "")
 	fmt.Fprintln(w, "include $(CLEAR_VARS)", " # java.robolectricTest")
 	fmt.Fprintln(w, "LOCAL_MODULE :=", name)
 	android.AndroidMkEmitAssignList(w, "LOCAL_JAVA_LIBRARIES", []string{module}, r.libs)
 	fmt.Fprintln(w, "LOCAL_TEST_PACKAGE :=", String(r.robolectricProperties.Instrumentation_for))
 	if r.roboSrcJar != nil {
 		fmt.Fprintln(w, "LOCAL_INSTRUMENT_SRCJARS :=", r.roboSrcJar.String())
 	}
 	android.AndroidMkEmitAssignList(w, "LOCAL_ROBOTEST_FILES", tests)
 	if t := r.robolectricProperties.Test_options.Timeout; t != nil {
 		fmt.Fprintln(w, "LOCAL_ROBOTEST_TIMEOUT :=", *t)
 	}
 	if v := String(r.robolectricProperties.Robolectric_prebuilt_version); v != "" {
 		fmt.Fprintf(w, "-include prebuilts/misc/common/robolectric/%s/run_robotests.mk\n", v)
 	} else {
 		fmt.Fprintln(w, "-include external/robolectric-shadows/run_robotests.mk")
 	}
 }

 // An android_robolectric_test module compiles tests against the Robolectric framework that can run on the local host
 // instead of on a device.  It also generates a rule with the name of the module prefixed with "Run" that can be
 // used to run the tests.  Running the tests with build rule will eventually be deprecated and replaced with atest.
 //
 // The test runner considers any file listed in srcs whose name ends with Test.java to be a test class, unless
 // it is named BaseRobolectricTest.java.  The path to the each source file must exactly match the package
 // name, or match the package name when the prefix "src/" is removed.
 func RobolectricTestFactory() android.Module {
 	module := &robolectricTest{}

 	module.addHostProperties()
 	module.AddProperties(
 		&module.Module.deviceProperties,
 		&module.robolectricProperties,
 		&module.testProperties)

 	module.Module.dexpreopter.isTest = true
 	module.Module.linter.properties.Lint.Test = proptools.BoolPtr(true)

 	module.testProperties.Test_suites = []string{"robolectric-tests"}

 	InitJavaModule(module, android.DeviceSupported)
 	return module
 }

 func (r *robolectricTest) InstallInTestcases() bool { return true }
 func (r *robolectricTest) InstallForceOS() (*android.OsType, *android.ArchType) {
 	return &r.forceOSType, &r.forceArchType
 }

 func robolectricRuntimesFactory() android.Module {
 	module := &robolectricRuntimes{}
 	module.AddProperties(&module.props)
 	android.InitAndroidArchModule(module, android.HostSupportedNoCross, android.MultilibCommon)
 	return module
 }

 type robolectricRuntimesProperties struct {
 	Jars []string `android:"path"`
 	Lib  *string
 }

 type robolectricRuntimes struct {
 	android.ModuleBase

 	props robolectricRuntimesProperties

 	runtimes []android.InstallPath

 	forceOSType   android.OsType
 	forceArchType android.ArchType
 }

 func (r *robolectricRuntimes) TestSuites() []string {
 	return []string{"robolectric-tests"}
 }

 var _ android.TestSuiteModule = (*robolectricRuntimes)(nil)

 func (r *robolectricRuntimes) DepsMutator(ctx android.BottomUpMutatorContext) {
 	if !ctx.Config().AlwaysUsePrebuiltSdks() && r.props.Lib != nil {
 		ctx.AddVariationDependencies(nil, libTag, String(r.props.Lib))
 	}
 }

 func (r *robolectricRuntimes) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	if ctx.Target().Os != ctx.Config().BuildOSCommonTarget.Os {
 		return
 	}

 	r.forceOSType = ctx.Config().BuildOS
 	r.forceArchType = ctx.Config().BuildArch

 	files := android.PathsForModuleSrc(ctx, r.props.Jars)

 	androidAllDir := android.PathForModuleInstall(ctx, "android-all")
 	for _, from := range files {
 		installedRuntime := ctx.InstallFile(androidAllDir, from.Base(), from)
 		r.runtimes = append(r.runtimes, installedRuntime)
 	}

 	if !ctx.Config().AlwaysUsePrebuiltSdks() && r.props.Lib != nil {
 		runtimeFromSourceModule := ctx.GetDirectDepWithTag(String(r.props.Lib), libTag)
 		if runtimeFromSourceModule == nil {
 			if ctx.Config().AllowMissingDependencies() {
 				ctx.AddMissingDependencies([]string{String(r.props.Lib)})
 			} else {
 				ctx.PropertyErrorf("lib", "missing dependency %q", String(r.props.Lib))
 			}
 			return
 		}
 		runtimeFromSourceJar := android.OutputFileForModule(ctx, runtimeFromSourceModule, "")

 		// "TREE" name is essential here because it hooks into the "TREE" name in
 		// Robolectric's SdkConfig.java that will always correspond to the NEWEST_SDK
 		// in Robolectric configs.
 		runtimeName := "android-all-current-robolectric-r0.jar"
 		installedRuntime := ctx.InstallFile(androidAllDir, runtimeName, runtimeFromSourceJar)
 		r.runtimes = append(r.runtimes, installedRuntime)
 	}
 }

 func (r *robolectricRuntimes) InstallInTestcases() bool { return true }
 func (r *robolectricRuntimes) InstallForceOS() (*android.OsType, *android.ArchType) {
 	return &r.forceOSType, &r.forceArchType
 }
	// Copyright 2019 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 (
	"fmt"
	"io"
	"strconv"
	"strings"

	"android/soong/android"
	"android/soong/java/config"
	"android/soong/tradefed"

	"github.com/google/blueprint/proptools"
	)

	func init() {
	android.RegisterModuleType("android_robolectric_test", RobolectricTestFactory)
	android.RegisterModuleType("android_robolectric_runtimes", robolectricRuntimesFactory)
	}

	var robolectricDefaultLibs = []string{
	"mockito-robolectric-prebuilt",
	"truth-prebuilt",
	// TODO(ccross): this is not needed at link time
	"junitxml",
	}

	const robolectricCurrentLib = "Robolectric_all-target"
	const robolectricPrebuiltLibPattern = "platform-robolectric-%s-prebuilt"

	var (
	roboCoverageLibsTag = dependencyTag{name: "roboCoverageLibs"}
	roboRuntimesTag = dependencyTag{name: "roboRuntimes"}
	)

	type robolectricProperties struct {
	// The name of the android_app module that the tests will run against.
	Instrumentation_for *string

	// Additional libraries for which coverage data should be generated
	Coverage_libs []string

	Test_options struct {
	// Timeout in seconds when running the tests.
	Timeout *int64

	// Number of shards to use when running the tests.
	Shards *int64
	}

	// The version number of a robolectric prebuilt to use from prebuilts/misc/common/robolectric
	// instead of the one built from source in external/robolectric-shadows.
	Robolectric_prebuilt_version *string

	// Use /external/robolectric rather than /external/robolectric-shadows as the version of robolectri
	// to use. /external/robolectric closely tracks github's master, and will fully replace /external/robolectric-shadows
	Upstream *bool
	}

	type robolectricTest struct {
	Library

	robolectricProperties robolectricProperties
	testProperties testProperties

	libs []string
	tests []string

	manifest android.Path
	resourceApk android.Path

	combinedJar android.WritablePath

	roboSrcJar android.Path

	testConfig android.Path
	data android.Paths

	forceOSType android.OsType
	forceArchType android.ArchType
	}

	func (r *robolectricTest) TestSuites() []string {
	return r.testProperties.Test_suites
	}

	var _ android.TestSuiteModule = (*robolectricTest)(nil)

	func (r *robolectricTest) DepsMutator(ctx android.BottomUpMutatorContext) {
	r.Library.DepsMutator(ctx)

	if r.robolectricProperties.Instrumentation_for != nil {
	ctx.AddVariationDependencies(nil, instrumentationForTag, String(r.robolectricProperties.Instrumentation_for))
	} else {
	ctx.PropertyErrorf("instrumentation_for", "missing required instrumented module")
	}

	if v := String(r.robolectricProperties.Robolectric_prebuilt_version); v != "" {
	ctx.AddVariationDependencies(nil, libTag, fmt.Sprintf(robolectricPrebuiltLibPattern, v))
	} else {
	if proptools.Bool(r.robolectricProperties.Upstream) {
	ctx.AddVariationDependencies(nil, libTag, robolectricCurrentLib+"_upstream")
	} else {
	ctx.AddVariationDependencies(nil, libTag, robolectricCurrentLib)
	}
	}

	ctx.AddVariationDependencies(nil, libTag, robolectricDefaultLibs...)

	ctx.AddVariationDependencies(nil, roboCoverageLibsTag, r.robolectricProperties.Coverage_libs...)

	ctx.AddFarVariationDependencies(ctx.Config().BuildOSCommonTarget.Variations(),
	roboRuntimesTag, "robolectric-android-all-prebuilts")
	}

	func (r *robolectricTest) 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: "${RobolectricTestConfigTemplate}",
	HostTemplate: "${RobolectricTestConfigTemplate}",
	})
	r.data = android.PathsForModuleSrc(ctx, r.testProperties.Data)

	roboTestConfig := android.PathForModuleGen(ctx, "robolectric").
	Join(ctx, "com/android/tools/test_config.properties")

	var ok bool
	var instrumentedApp *AndroidApp

	// TODO: this inserts paths to built files into the test, it should really be inserting the contents.
	instrumented := ctx.GetDirectDepsWithTag(instrumentationForTag)

	if len(instrumented) == 1 {
	instrumentedApp, ok = instrumented[0].(*AndroidApp)
	if !ok {
	ctx.PropertyErrorf("instrumentation_for", "dependency must be an android_app")
	}
	} else if !ctx.Config().AllowMissingDependencies() {
	panic(fmt.Errorf("expected exactly 1 instrumented dependency, got %d", len(instrumented)))
	}

	if instrumentedApp != nil {
	r.manifest = instrumentedApp.mergedManifestFile
	r.resourceApk = instrumentedApp.outputFile

	generateRoboTestConfig(ctx, roboTestConfig, instrumentedApp)
	r.extraResources = android.Paths{roboTestConfig}
	}

	r.Library.GenerateAndroidBuildActions(ctx)

	roboSrcJar := android.PathForModuleGen(ctx, "robolectric", ctx.ModuleName()+".srcjar")

	if instrumentedApp != nil {
	r.generateRoboSrcJar(ctx, roboSrcJar, instrumentedApp)
	r.roboSrcJar = roboSrcJar
	}

	roboTestConfigJar := android.PathForModuleOut(ctx, "robolectric_samedir", "samedir_config.jar")
	generateSameDirRoboTestConfigJar(ctx, roboTestConfigJar)

	combinedJarJars := android.Paths{
	// roboTestConfigJar comes first so that its com/android/tools/test_config.properties
	// overrides the one from r.extraResources. The r.extraResources one can be removed
	// once the Make test runner is removed.
	roboTestConfigJar,
	r.outputFile,
	}

	if instrumentedApp != nil {
	combinedJarJars = append(combinedJarJars, instrumentedApp.implementationAndResourcesJar)
	}

	handleLibDeps := func(dep android.Module) {
	m := ctx.OtherModuleProvider(dep, JavaInfoProvider).(JavaInfo)
	r.libs = append(r.libs, ctx.OtherModuleName(dep))
	if !android.InList(ctx.OtherModuleName(dep), config.FrameworkLibraries) {
	combinedJarJars = append(combinedJarJars, m.ImplementationAndResourcesJars...)
	}
	}

	for _, dep := range ctx.GetDirectDepsWithTag(libTag) {
	handleLibDeps(dep)
	}
	for _, dep := range ctx.GetDirectDepsWithTag(sdkLibTag) {
	handleLibDeps(dep)
	}

	r.combinedJar = android.PathForModuleOut(ctx, "robolectric_combined", r.outputFile.Base())
	TransformJarsToJar(ctx, r.combinedJar, "combine jars", combinedJarJars, android.OptionalPath{},
	false, nil, nil)

	// TODO: this could all be removed if tradefed was used as the test runner, it will find everything
	// annotated as a test and run it.
	for _, src := range r.uniqueSrcFiles {
	s := src.Rel()
	if !strings.HasSuffix(s, "Test.java") && !strings.HasSuffix(s, "Test.kt") {
	continue
	} else if strings.HasSuffix(s, "/BaseRobolectricTest.java") {
	continue
	} else {
	s = strings.TrimPrefix(s, "src/")
	}
	r.tests = append(r.tests, s)
	}

	installPath := android.PathForModuleInstall(ctx, r.BaseModuleName())
	var installDeps android.Paths

	if r.manifest != nil {
	r.data = append(r.data, r.manifest)
	installedManifest := ctx.InstallFile(installPath, ctx.ModuleName()+"-AndroidManifest.xml", r.manifest)
	installDeps = append(installDeps, installedManifest)
	}

	if r.resourceApk != nil {
	r.data = append(r.data, r.resourceApk)
	installedResourceApk := ctx.InstallFile(installPath, ctx.ModuleName()+".apk", r.resourceApk)
	installDeps = append(installDeps, installedResourceApk)
	}

	runtimes := ctx.GetDirectDepWithTag("robolectric-android-all-prebuilts", roboRuntimesTag)
	for _, runtime := range runtimes.(*robolectricRuntimes).runtimes {
	installDeps = append(installDeps, runtime)
	}

	installedConfig := ctx.InstallFile(installPath, ctx.ModuleName()+".config", r.testConfig)
	installDeps = append(installDeps, installedConfig)

	for _, data := range android.PathsForModuleSrc(ctx, r.testProperties.Data) {
	installedData := ctx.InstallFile(installPath, data.Rel(), data)
	installDeps = append(installDeps, installedData)
	}

	r.installFile = ctx.InstallFile(installPath, ctx.ModuleName()+".jar", r.combinedJar, installDeps...)
	}

	func generateRoboTestConfig(ctx android.ModuleContext, outputFile android.WritablePath,
	instrumentedApp *AndroidApp) {
	rule := android.NewRuleBuilder(pctx, ctx)

	manifest := instrumentedApp.mergedManifestFile
	resourceApk := instrumentedApp.outputFile

	rule.Command().Text("rm -f").Output(outputFile)
	rule.Command().
	Textf(`echo "android_merged_manifest=%s" >>`, manifest.String()).Output(outputFile).Text("&&").
	Textf(`echo "android_resource_apk=%s" >>`, resourceApk.String()).Output(outputFile).
	// Make it depend on the files to which it points so the test file's timestamp is updated whenever the
	// contents change
	Implicit(manifest).
	Implicit(resourceApk)

	rule.Build("generate_test_config", "generate test_config.properties")
	}

	func generateSameDirRoboTestConfigJar(ctx android.ModuleContext, outputFile android.ModuleOutPath) {
	rule := android.NewRuleBuilder(pctx, ctx)

	outputDir := outputFile.InSameDir(ctx)
	configFile := outputDir.Join(ctx, "com/android/tools/test_config.properties")
	rule.Temporary(configFile)
	rule.Command().Text("rm -f").Output(outputFile).Output(configFile)
	rule.Command().Textf("mkdir -p $(dirname %s)", configFile.String())
	rule.Command().
	Text("(").
	Textf(`echo "android_merged_manifest=%s-AndroidManifest.xml" &&`, ctx.ModuleName()).
	Textf(`echo "android_resource_apk=%s.apk"`, ctx.ModuleName()).
	Text(") >>").Output(configFile)
	rule.Command().
	BuiltTool("soong_zip").
	FlagWithArg("-C ", outputDir.String()).
	FlagWithInput("-f ", configFile).
	FlagWithOutput("-o ", outputFile)

	rule.Build("generate_test_config_samedir", "generate test_config.properties")
	}

	func (r *robolectricTest) generateRoboSrcJar(ctx android.ModuleContext, outputFile android.WritablePath,
	instrumentedApp *AndroidApp) {

	srcJarArgs := android.CopyOf(instrumentedApp.srcJarArgs)
	srcJarDeps := append(android.Paths(nil), instrumentedApp.srcJarDeps...)

	for _, m := range ctx.GetDirectDepsWithTag(roboCoverageLibsTag) {
	if ctx.OtherModuleHasProvider(m, JavaInfoProvider) {
	dep := ctx.OtherModuleProvider(m, JavaInfoProvider).(JavaInfo)
	srcJarArgs = append(srcJarArgs, dep.SrcJarArgs...)
	srcJarDeps = append(srcJarDeps, dep.SrcJarDeps...)
	}
	}

	TransformResourcesToJar(ctx, outputFile, srcJarArgs, srcJarDeps)
	}

	func (r *robolectricTest) 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", "robolectric-tests")
	if r.testConfig != nil {
	entries.SetPath("LOCAL_FULL_TEST_CONFIG", r.testConfig)
	}
	})

	entries.ExtraFooters = []android.AndroidMkExtraFootersFunc{
	func(w io.Writer, name, prefix, moduleDir string) {
	if s := r.robolectricProperties.Test_options.Shards; s != nil && *s > 1 {
	numShards := int(*s)
	shardSize := (len(r.tests) + numShards - 1) / numShards
	shards := android.ShardStrings(r.tests, shardSize)
	for i, shard := range shards {
	r.writeTestRunner(w, name, "Run"+name+strconv.Itoa(i), shard)
	}

	// TODO: add rules to dist the outputs of the individual tests, or combine them together?
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, ".PHONY:", "Run"+name)
	fmt.Fprintln(w, "Run"+name, ": \\")
	for i := range shards {
	fmt.Fprintln(w, " ", "Run"+name+strconv.Itoa(i), "\\")
	}
	fmt.Fprintln(w, "")
	} else {
	r.writeTestRunner(w, name, "Run"+name, r.tests)
	}
	},
	}

	return entriesList
	}

	func (r *robolectricTest) writeTestRunner(w io.Writer, module, name string, tests []string) {
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "include $(CLEAR_VARS)", " # java.robolectricTest")
	fmt.Fprintln(w, "LOCAL_MODULE :=", name)
	android.AndroidMkEmitAssignList(w, "LOCAL_JAVA_LIBRARIES", []string{module}, r.libs)
	fmt.Fprintln(w, "LOCAL_TEST_PACKAGE :=", String(r.robolectricProperties.Instrumentation_for))
	if r.roboSrcJar != nil {
	fmt.Fprintln(w, "LOCAL_INSTRUMENT_SRCJARS :=", r.roboSrcJar.String())
	}
	android.AndroidMkEmitAssignList(w, "LOCAL_ROBOTEST_FILES", tests)
	if t := r.robolectricProperties.Test_options.Timeout; t != nil {
	fmt.Fprintln(w, "LOCAL_ROBOTEST_TIMEOUT :=", *t)
	}
	if v := String(r.robolectricProperties.Robolectric_prebuilt_version); v != "" {
	fmt.Fprintf(w, "-include prebuilts/misc/common/robolectric/%s/run_robotests.mk\n", v)
	} else {
	fmt.Fprintln(w, "-include external/robolectric-shadows/run_robotests.mk")
	}
	}

	// An android_robolectric_test module compiles tests against the Robolectric framework that can run on the local host
	// instead of on a device. It also generates a rule with the name of the module prefixed with "Run" that can be
	// used to run the tests. Running the tests with build rule will eventually be deprecated and replaced with atest.
	//
	// The test runner considers any file listed in srcs whose name ends with Test.java to be a test class, unless
	// it is named BaseRobolectricTest.java. The path to the each source file must exactly match the package
	// name, or match the package name when the prefix "src/" is removed.
	func RobolectricTestFactory() android.Module {
	module := &robolectricTest{}

	module.addHostProperties()
	module.AddProperties(
	&module.Module.deviceProperties,
	&module.robolectricProperties,
	&module.testProperties)

	module.Module.dexpreopter.isTest = true
	module.Module.linter.properties.Lint.Test = proptools.BoolPtr(true)

	module.testProperties.Test_suites = []string{"robolectric-tests"}

	InitJavaModule(module, android.DeviceSupported)
	return module
	}

	func (r *robolectricTest) InstallInTestcases() bool { return true }
	func (r robolectricTest) InstallForceOS() (android.OsType, *android.ArchType) {
	return &r.forceOSType, &r.forceArchType
	}

	func robolectricRuntimesFactory() android.Module {
	module := &robolectricRuntimes{}
	module.AddProperties(&module.props)
	android.InitAndroidArchModule(module, android.HostSupportedNoCross, android.MultilibCommon)
	return module
	}

	type robolectricRuntimesProperties struct {
	Jars []string `android:"path"`
	Lib *string
	}

	type robolectricRuntimes struct {
	android.ModuleBase

	props robolectricRuntimesProperties

	runtimes []android.InstallPath

	forceOSType android.OsType
	forceArchType android.ArchType
	}

	func (r *robolectricRuntimes) TestSuites() []string {
	return []string{"robolectric-tests"}
	}

	var _ android.TestSuiteModule = (*robolectricRuntimes)(nil)

	func (r *robolectricRuntimes) DepsMutator(ctx android.BottomUpMutatorContext) {
	if !ctx.Config().AlwaysUsePrebuiltSdks() && r.props.Lib != nil {
	ctx.AddVariationDependencies(nil, libTag, String(r.props.Lib))
	}
	}

	func (r *robolectricRuntimes) GenerateAndroidBuildActions(ctx android.ModuleContext) {
	if ctx.Target().Os != ctx.Config().BuildOSCommonTarget.Os {
	return
	}

	r.forceOSType = ctx.Config().BuildOS
	r.forceArchType = ctx.Config().BuildArch

	files := android.PathsForModuleSrc(ctx, r.props.Jars)

	androidAllDir := android.PathForModuleInstall(ctx, "android-all")
	for _, from := range files {
	installedRuntime := ctx.InstallFile(androidAllDir, from.Base(), from)
	r.runtimes = append(r.runtimes, installedRuntime)
	}

	if !ctx.Config().AlwaysUsePrebuiltSdks() && r.props.Lib != nil {
	runtimeFromSourceModule := ctx.GetDirectDepWithTag(String(r.props.Lib), libTag)
	if runtimeFromSourceModule == nil {
	if ctx.Config().AllowMissingDependencies() {
	ctx.AddMissingDependencies([]string{String(r.props.Lib)})
	} else {
	ctx.PropertyErrorf("lib", "missing dependency %q", String(r.props.Lib))
	}
	return
	}
	runtimeFromSourceJar := android.OutputFileForModule(ctx, runtimeFromSourceModule, "")

	// "TREE" name is essential here because it hooks into the "TREE" name in
	// Robolectric's SdkConfig.java that will always correspond to the NEWEST_SDK
	// in Robolectric configs.
	runtimeName := "android-all-current-robolectric-r0.jar"
	installedRuntime := ctx.InstallFile(androidAllDir, runtimeName, runtimeFromSourceJar)
	r.runtimes = append(r.runtimes, installedRuntime)
	}
	}

	func (r *robolectricRuntimes) InstallInTestcases() bool { return true }
	func (r robolectricRuntimes) InstallForceOS() (android.OsType, *android.ArchType) {
	return &r.forceOSType, &r.forceArchType
	}