Add tests for core library neverallow rules

Bug: 134566750
Test: m
Change-Id: I65e2afdf726937c29fc4f62a317024dc133254bf

android/neverallow.go

@@ -95,6 +95,9 @@ func createLibcoreRules() []*rule {
 		"external/icu",
 		"external/okhttp",
 		"external/wycheproof",
+
+		// Not really a core library but still needs access to same capabilities.
+		"development",
 	}
 
 	// Core library constraints. The no_standard_libs can only be used in core
@@ -102,7 +105,7 @@ func createLibcoreRules() []*rule {
 	// visibility rules.
 	rules := []*rule{
 		neverallow().
-			notIn(append(coreLibraryProjects, "development")...).
+			notIn(coreLibraryProjects...).
 			with("no_standard_libs", "true"),
 	}
 

android/neverallow_test.go

@@ -148,6 +148,38 @@ var neverallowTests = []struct {
 		},
 		expectedError: "java_device_for_host can only be used in whitelisted projects",
 	},
+	// Libcore rule tests
+	{
+		name: "no_standard_libs: true inside core libraries",
+		fs: map[string][]byte{
+			"libcore/Blueprints": []byte(`
+				java_library {
+					name: "inside_core_libraries",
+					no_standard_libs: true,
+				}`),
+		},
+	},
+	{
+		name: "no_standard_libs: true outside core libraries",
+		fs: map[string][]byte{
+			"Blueprints": []byte(`
+				java_library {
+					name: "outside_core_libraries",
+					no_standard_libs: true,
+				}`),
+		},
+		expectedError: "module \"outside_core_libraries\": violates neverallow",
+	},
+	{
+		name: "no_standard_libs: false",
+		fs: map[string][]byte{
+			"Blueprints": []byte(`
+				java_library {
+					name: "outside_core_libraries",
+					no_standard_libs: false,
+				}`),
+		},
+	},
 }
 
 func TestNeverallow(t *testing.T) {
@@ -227,7 +259,8 @@ func (p *mockCcLibraryModule) GenerateAndroidBuildActions(ModuleContext) {
 }
 
 type mockJavaLibraryProperties struct {
-	Libs []string
+	Libs             []string
+	No_standard_libs *bool
 }
 
 type mockJavaLibraryModule struct {