5 files changed, 75 insertions, 25 deletions
diff --git a/android/fixture.go b/android/fixture.go
index f33e7189d..3f01f5a0d 100644
--- a/android/fixture.go
+++ b/android/fixture.go
@@ -658,7 +658,7 @@ func (t *TestPathContext) AddNinjaFileDeps(deps ...string) {
 
 func createFixture(t *testing.T, buildDir string, preparers []*simpleFixturePreparer) Fixture {
 	config := TestConfig(buildDir, nil, "", nil)
-	ctx := NewTestContext(config)
+	ctx := newTestContextForFixture(config)
 	fixture := &fixture{
 		preparers: preparers,
 		t:         t,
@@ -790,6 +790,16 @@ func (f *fixture) RunTest() *TestResult {
 		}
 	}
 
+	// Create and set the Context's NameInterface. It needs to be created here as it depends on the
+	// configuration that has been prepared for this fixture.
+	resolver := NewNameResolver(ctx.config)
+
+	// Set the NameInterface in the main Context.
+	ctx.SetNameInterface(resolver)
+
+	// Set the NameResolver in the TestContext.
+	ctx.NameResolver = resolver
+
 	ctx.Register()
 	var ninjaDeps []string
 	extraNinjaDeps, errs := ctx.ParseBlueprintsFiles("ignored")
diff --git a/android/namespace.go b/android/namespace.go
index a3ff76125..b43ffdf19 100644
--- a/android/namespace.go
+++ b/android/namespace.go
@@ -91,7 +91,27 @@ type NameResolver struct {
 	namespaceExportFilter func(*Namespace) bool
 }
 
-func NewNameResolver(namespaceExportFilter func(*Namespace) bool) *NameResolver {
+// NameResolverConfig provides the subset of the Config interface needed by the
+// NewNameResolver function.
+type NameResolverConfig interface {
+	// ExportedNamespaces is the list of namespaces that Soong must export to
+	// make.
+	ExportedNamespaces() []string
+}
+
+func NewNameResolver(config NameResolverConfig) *NameResolver {
+	namespacePathsToExport := make(map[string]bool)
+
+	for _, namespaceName := range config.ExportedNamespaces() {
+		namespacePathsToExport[namespaceName] = true
+	}
+
+	namespacePathsToExport["."] = true // always export the root namespace
+
+	namespaceExportFilter := func(namespace *Namespace) bool {
+		return namespacePathsToExport[namespace.Path]
+	}
+
 	r := &NameResolver{
 		namespacesByDir:       sync.Map{},
 		namespaceExportFilter: namespaceExportFilter,
diff --git a/android/namespace_test.go b/android/namespace_test.go
index 87d13206b..7a387a0bd 100644
--- a/android/namespace_test.go
+++ b/android/namespace_test.go
@@ -602,6 +602,36 @@ func TestRename(t *testing.T) {
 	// RunTest will report any errors
 }
 
+func TestNamespace_Exports(t *testing.T) {
+	result := GroupFixturePreparers(
+		prepareForTestWithNamespace,
+		FixtureModifyProductVariables(func(variables FixtureProductVariables) {
+			variables.NamespacesToExport = []string{"dir1"}
+		}),
+		dirBpToPreparer(map[string]string{
+			"dir1": `
+				soong_namespace {
+				}
+				test_module {
+					name: "a",
+				}
+			`,
+			"dir2": `
+				soong_namespace {
+				}
+				test_module {
+					name: "b",
+				}
+			`,
+		}),
+	).RunTest(t)
+
+	aModule := result.Module("a", "")
+	AssertBoolEquals(t, "a exported", true, aModule.ExportedToMake())
+	bModule := result.Module("b", "")
+	AssertBoolEquals(t, "b not exported", false, bModule.ExportedToMake())
+}
+
 // some utils to support the tests
 
 var prepareForTestWithNamespace = GroupFixturePreparers(
diff --git a/android/testing.go b/android/testing.go
index 2256c96bc..8fcf4409b 100644
--- a/android/testing.go
+++ b/android/testing.go
@@ -30,19 +30,11 @@ import (
 	"github.com/google/blueprint/proptools"
 )
 
-func NewTestContext(config Config) *TestContext {
-	namespaceExportFilter := func(namespace *Namespace) bool {
-		return true
-	}
-
-	nameResolver := NewNameResolver(namespaceExportFilter)
+func newTestContextForFixture(config Config) *TestContext {
 	ctx := &TestContext{
-		Context:      &Context{blueprint.NewContext(), config},
-		NameResolver: nameResolver,
+		Context: &Context{blueprint.NewContext(), config},
 	}
 
-	ctx.SetNameInterface(nameResolver)
-
 	ctx.postDeps = append(ctx.postDeps, registerPathDepsMutator)
 
 	ctx.SetFs(ctx.config.fs)
@@ -53,6 +45,16 @@ func NewTestContext(config Config) *TestContext {
 	return ctx
 }
 
+func NewTestContext(config Config) *TestContext {
+	ctx := newTestContextForFixture(config)
+
+	nameResolver := NewNameResolver(config)
+	ctx.NameResolver = nameResolver
+	ctx.SetNameInterface(nameResolver)
+
+	return ctx
+}
+
 var PrepareForTestWithArchMutator = GroupFixturePreparers(
 	// Configure architecture targets in the fixture config.
 	FixtureModifyConfig(modifyTestConfigToSupportArchMutator),
diff --git a/cmd/soong_build/main.go b/cmd/soong_build/main.go
index 3fed1a172..028ca44d0 100644
--- a/cmd/soong_build/main.go
+++ b/cmd/soong_build/main.go
@@ -106,19 +106,7 @@ func init() {
 }
 
 func newNameResolver(config android.Config) *android.NameResolver {
-	namespacePathsToExport := make(map[string]bool)
-
-	for _, namespaceName := range config.ExportedNamespaces() {
-		namespacePathsToExport[namespaceName] = true
-	}
-
-	namespacePathsToExport["."] = true // always export the root namespace
-
-	exportFilter := func(namespace *android.Namespace) bool {
-		return namespacePathsToExport[namespace.Path]
-	}
-
-	return android.NewNameResolver(exportFilter)
+	return android.NewNameResolver(config)
 }
 
 func newContext(configuration android.Config) *android.Context {