Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/clang-tools-extra/unittests/clang-tidy/ObjCModuleTest.cpp

@@ -0,0 +1,49 @@
+//===---- ObjCModuleTest.cpp - clang-tidy ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangTidyTest.h"
+#include "gtest/gtest.h"
+#include "objc/ForbiddenSubclassingCheck.h"
+
+using namespace clang::tidy::objc;
+
+namespace clang {
+namespace tidy {
+namespace test {
+
+TEST(ObjCForbiddenSubclassing, AllowedSubclass) {
+  std::vector<ClangTidyError> Errors;
+  runCheckOnCode<ForbiddenSubclassingCheck>(
+      "@interface Foo\n"
+      "@end\n"
+      "@interface Bar : Foo\n"
+      "@end\n",
+      &Errors,
+      "input.m");
+  EXPECT_EQ(0ul, Errors.size());
+}
+
+TEST(ObjCForbiddenSubclassing, ForbiddenSubclass) {
+  std::vector<ClangTidyError> Errors;
+  runCheckOnCode<ForbiddenSubclassingCheck>(
+      "@interface UIImagePickerController\n"
+      "@end\n"
+      "@interface Foo : UIImagePickerController\n"
+      "@end\n",
+      &Errors,
+      "input.m");
+  EXPECT_EQ(1ul, Errors.size());
+  EXPECT_EQ(
+      "Objective-C interface 'Foo' subclasses 'UIImagePickerController', which is not intended to be subclassed",
+      Errors[0].Message.Message);
+}
+
+} // namespace test
+} // namespace tidy
+} // namespace clang