diff --git a/clang-tools-extra/unittests/clangd/ClangdTests.cpp b/clang-tools-extra/unittests/clangd/ClangdTests.cpp index 18e7ec1594dd..ace2cef4b458 100644 --- a/clang-tools-extra/unittests/clangd/ClangdTests.cpp +++ b/clang-tools-extra/unittests/clangd/ClangdTests.cpp @@ -35,6 +35,7 @@ namespace clangd { using ::testing::ElementsAre; using ::testing::Eq; +using ::testing::Field; using ::testing::Gt; using ::testing::IsEmpty; using ::testing::Pair; @@ -927,6 +928,41 @@ void f() {} EXPECT_EQ(Expected, *Changed); } +TEST_F(ClangdVFSTest, ChangedHeaderFromISystem) { + MockFSProvider FS; + ErrorCheckingDiagConsumer DiagConsumer; + MockCompilationDatabase CDB; + ClangdServer Server(CDB, FS, DiagConsumer, ClangdServer::optsForTest()); + + auto SourcePath = testPath("source/foo.cpp"); + auto HeaderPath = testPath("headers/foo.h"); + FS.Files[HeaderPath] = "struct X { int bar; };"; + Annotations Code(R"cpp( + #include "foo.h" + + int main() { + X().ba^ + })cpp"); + CDB.ExtraClangFlags.push_back("-xc++"); + CDB.ExtraClangFlags.push_back("-isystem" + testPath("headers")); + + runAddDocument(Server, SourcePath, Code.code()); + auto Completions = cantFail(runCodeComplete(Server, SourcePath, Code.point(), + clangd::CodeCompleteOptions())) + .Completions; + EXPECT_THAT(Completions, ElementsAre(Field(&CodeCompletion::Name, "bar"))); + // Update the header and rerun addDocument to make sure we get the updated + // files. + FS.Files[HeaderPath] = "struct X { int bar; int baz; };"; + runAddDocument(Server, SourcePath, Code.code()); + Completions = cantFail(runCodeComplete(Server, SourcePath, Code.point(), + clangd::CodeCompleteOptions())) + .Completions; + // We want to make sure we see the updated version. + EXPECT_THAT(Completions, ElementsAre(Field(&CodeCompletion::Name, "bar"), + Field(&CodeCompletion::Name, "baz"))); +} + } // namespace } // namespace clangd } // namespace clang