Always generate rules for blueprint tests

Generate the rules to build and run the blueprint tests whether or
not running the tests during bootstrap is enabled, and only add them
as validation dependencies if running the tests is enabled.  Export
the outputs of the tests as a phony target for checkbuild to depend on.

Bug: 269296618
Test: m nothing
Test: aninja -t path checkbuild out/host/linux-x86/bin/go/soong-java/test/test.passed
Change-Id: I09cd20d802bed5a659f3f36e87128d4281dfcfb0

bootstrap/bootstrap.go

@@ -320,12 +320,10 @@ func (g *GoPackage) GenerateBuildActions(ctx blueprint.ModuleContext) {
 		testSrcs = append(g.properties.TestSrcs, g.properties.Linux.TestSrcs...)
 	}
 
-	if ctx.Config().(BootstrapConfig).RunGoTests() {
 	testArchiveFile := filepath.Join(testRoot(ctx),
 		filepath.FromSlash(g.properties.PkgPath)+".a")
 	g.testResultFile = buildGoTest(ctx, testRoot(ctx), testArchiveFile,
 		g.properties.PkgPath, srcs, genSrcs, testSrcs)
-	}
 
 	// Don't build for test-only packages
 	if len(srcs) == 0 && len(genSrcs) == 0 {
@@ -493,10 +491,8 @@ func (g *GoBinary) GenerateBuildActions(ctx blueprint.ModuleContext) {
 		testSrcs = append(g.properties.TestSrcs, g.properties.Linux.TestSrcs...)
 	}
 
-	if ctx.Config().(BootstrapConfig).RunGoTests() {
 	testDeps = buildGoTest(ctx, testRoot(ctx), testArchiveFile,
 		name, srcs, genSrcs, testSrcs)
-	}
 
 	buildGoPackage(ctx, objDir, "main", archiveFile, srcs, genSrcs)
 
@@ -525,11 +521,16 @@ func (g *GoBinary) GenerateBuildActions(ctx blueprint.ModuleContext) {
 		Optional:  true,
 	})
 
+	var validations []string
+	if ctx.Config().(BootstrapConfig).RunGoTests() {
+		validations = testDeps
+	}
+
 	ctx.Build(pctx, blueprint.BuildParams{
 		Rule:        cp,
 		Outputs:     []string{g.installPath},
 		Inputs:      []string{aoutFile},
-		Validations: testDeps,
+		Validations: validations,
 		Optional:    !g.properties.Default,
 	})
 }
@@ -688,6 +689,8 @@ func (s *singleton) GenerateBuildActions(ctx blueprint.SingletonContext) {
 	var primaryBuilders []*GoBinary
 	// blueprintTools contains blueprint go binaries that will be built in StageMain
 	var blueprintTools []string
+	// blueprintTools contains the test outputs of go tests that can be run in StageMain
+	var blueprintTests []string
 	// blueprintGoPackages contains all blueprint go packages that can be built in StageMain
 	var blueprintGoPackages []string
 	ctx.VisitAllModulesIf(IsBootstrapModule,
@@ -703,7 +706,7 @@ func (s *singleton) GenerateBuildActions(ctx blueprint.SingletonContext) {
 				if packageModule, ok := module.(*GoPackage); ok {
 					blueprintGoPackages = append(blueprintGoPackages,
 						packageModule.GoPackageTarget())
-					blueprintGoPackages = append(blueprintGoPackages,
+					blueprintTests = append(blueprintTests,
 						packageModule.GoTestTargets()...)
 				}
 			}
@@ -777,6 +780,13 @@ func (s *singleton) GenerateBuildActions(ctx blueprint.SingletonContext) {
 		Inputs:  blueprintTools,
 	})
 
+	// Add a phony target for running various tests that are part of blueprint
+	ctx.Build(pctx, blueprint.BuildParams{
+		Rule:    blueprint.Phony,
+		Outputs: []string{"blueprint_tests"},
+		Inputs:  blueprintTests,
+	})
+
 	// Add a phony target for running go tests
 	ctx.Build(pctx, blueprint.BuildParams{
 		Rule:     blueprint.Phony,