bootclasspath_fragment: Add test specific module type

This is needed to allow the behavior of the bootclasspath_fragment to
be tweaked for test fragments.

Bug: 194063708
Test: m nothing
Change-Id: Iee5c09d5b580d088ba081d95a788dbde883078ed
(cherry picked from commit c15b9e99e5)
Merged-In: Iee5c09d5b580d088ba081d95a788dbde883078ed

java/bootclasspath_fragment.go

@@ -37,6 +37,7 @@ func init() {
 
 func registerBootclasspathFragmentBuildComponents(ctx android.RegistrationContext) {
 	ctx.RegisterModuleType("bootclasspath_fragment", bootclasspathFragmentFactory)
+	ctx.RegisterModuleType("bootclasspath_fragment_test", testBootclasspathFragmentFactory)
 	ctx.RegisterModuleType("prebuilt_bootclasspath_fragment", prebuiltBootclasspathFragmentFactory)
 }
 
@@ -231,6 +232,9 @@ type BootclasspathFragmentModule struct {
 	android.SdkBase
 	ClasspathFragmentBase
 
+	// True if this fragment is for testing purposes.
+	testFragment bool
+
 	properties bootclasspathFragmentProperties
 
 	sourceOnlyProperties SourceOnlyBootclasspathProperties
@@ -302,6 +306,12 @@ func bootclasspathFragmentFactory() android.Module {
 	return m
 }
 
+func testBootclasspathFragmentFactory() android.Module {
+	m := bootclasspathFragmentFactory().(*BootclasspathFragmentModule)
+	m.testFragment = true
+	return m
+}
+
 // bootclasspathFragmentInitContentsFromImage will initialize the contents property from the image_name if
 // necessary.
 func bootclasspathFragmentInitContentsFromImage(ctx android.EarlyModuleContext, m *BootclasspathFragmentModule) {
@@ -823,6 +833,11 @@ func (b *BootclasspathFragmentModule) createHiddenAPIFlagInput(ctx android.Modul
 	return input
 }
 
+// isTestFragment returns true if the current module is a test bootclasspath_fragment.
+func (b *BootclasspathFragmentModule) isTestFragment() bool {
+	return b.testFragment
+}
+
 // produceHiddenAPIOutput produces the hidden API all-flags.csv file (and supporting files)
 // for the fragment as well as encoding the flags in the boot dex jars.
 func (b *BootclasspathFragmentModule) produceHiddenAPIOutput(ctx android.ModuleContext, contents []android.Module, input HiddenAPIFlagInput) *HiddenAPIOutput {

java/bootclasspath_fragment_test.go

@@ -278,3 +278,42 @@ func TestBootclasspathFragment_StubLibs(t *testing.T) {
 
 	android.AssertPathsRelativeToTopEquals(t, "widest dex stubs jar", expectedWidestPaths, info.TransitiveStubDexJarsByScope.StubDexJarsForWidestAPIScope())
 }
+
+func TestBootclasspathFragment_Test(t *testing.T) {
+	result := android.GroupFixturePreparers(
+		prepareForTestWithBootclasspathFragment,
+		PrepareForTestWithJavaSdkLibraryFiles,
+		FixtureWithLastReleaseApis("mysdklibrary"),
+	).RunTestWithBp(t, `
+		bootclasspath_fragment {
+			name: "myfragment",
+			contents: ["mysdklibrary"],
+			hidden_api: {
+				split_packages: [],
+			},
+		}
+
+		bootclasspath_fragment_test {
+			name: "a_test_fragment",
+			contents: ["mysdklibrary"],
+			hidden_api: {
+				split_packages: [],
+			},
+		}
+
+
+		java_sdk_library {
+			name: "mysdklibrary",
+			srcs: ["a.java"],
+			shared_library: false,
+			public: {enabled: true},
+			system: {enabled: true},
+		}
+	`)
+
+	fragment := result.Module("myfragment", "android_common").(*BootclasspathFragmentModule)
+	android.AssertBoolEquals(t, "not a test fragment", false, fragment.isTestFragment())
+
+	fragment = result.Module("a_test_fragment", "android_common").(*BootclasspathFragmentModule)
+	android.AssertBoolEquals(t, "is a test fragment by type", true, fragment.isTestFragment())
+}