1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeCompletion/included-files.cpp b/test/CodeCompletion/included-files.cpp
new file mode 100644
index 0000000000000..ba153e6e27548
--- /dev/null
+++ b/test/CodeCompletion/included-files.cpp
@@ -0,0 +1,35 @@
+// RUN: rm -rf %t && mkdir %t && cp %s %t/main.cc && mkdir %t/a
+// RUN: touch %t/foo.h && touch %t/foo.cc && touch %t/a/foosys %t/a/foosys.h
+
+// Quoted string shows header-ish files from CWD, and all from system.
+#include "foo.h"
+// RUN: %clang -fsyntax-only -isystem %t/a -Xclang -code-completion-at=%t/main.cc:5:13 %t/main.cc | FileCheck -check-prefix=CHECK-1 %s
+// CHECK-1-NOT: foo.cc"
+// CHECK-1: foo.h"
+// CHECK-1: foosys"
+
+// Quoted string with dir shows header-ish files in that subdir.
+#include "a/foosys"
+// RUN: %clang -fsyntax-only -isystem %t/a -Xclang -code-completion-at=%t/main.cc:12:13 %t/main.cc | FileCheck -check-prefix=CHECK-2 %s
+// CHECK-2-NOT: foo.h"
+// CHECK-2: foosys.h"
+// CHECK-2-NOT: foosys"
+
+// Angled shows headers from system dirs.
+#include <foosys>
+// RUN: %clang -fsyntax-only -isystem %t/a -Xclang -code-completion-at=%t/main.cc:19:13 %t/main.cc | FileCheck -check-prefix=CHECK-3 %s
+// CHECK-3-NOT: foo.cc>
+// CHECK-3-NOT: foo.h>
+// CHECK-3: foosys>
+
+// With -I rather than -isystem, the header extension is required.
+#include <foosys>
+// RUN: %clang -fsyntax-only -I %t/a -Xclang -code-completion-at=%t/main.cc:26:13 %t/main.cc | FileCheck -check-prefix=CHECK-4 %s
+// CHECK-4-NOT: foo.cc>
+// CHECK-4-NOT: foo.h>
+// CHECK-4-NOT: foosys>
+
+// Backslash handling.
+#include "a\foosys"
+// RUN: %clang -fsyntax-only -isystem %t/a -Xclang -code-completion-at=%t/main.cc:33:13 %t/main.cc -fms-compatibility | FileCheck -check-prefix=CHECK-5 %s
+// CHECK-5: foosys.h"