diff --git a/android/neverallow_test.go b/android/neverallow_test.go
index 00c51ea..c60de21 100644
--- a/android/neverallow_test.go
+++ b/android/neverallow_test.go
@@ -148,6 +148,38 @@
 		},
 		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 @@
 }
 
 type mockJavaLibraryProperties struct {
-	Libs []string
+	Libs             []string
+	No_standard_libs *bool
 }
 
 type mockJavaLibraryModule struct {