1 files changed, 37 insertions, 0 deletions
diff --git a/test/Lexer/preamble.c b/test/Lexer/preamble.c
new file mode 100644
index 000000000000..69cdbb7f241e
--- /dev/null
+++ b/test/Lexer/preamble.c
@@ -0,0 +1,37 @@
+// Preamble detection test: see below for comments and test commands.
+//
+#include <blah>
+#ifndef FOO
+#else
+#ifdef BAR
+#elif WIBBLE
+#endif
+#pragma unknown
+#endif
+#ifdef WIBBLE
+#include "honk"
+#else
+int foo();
+#endif
+
+// This test checks for detection of the preamble of a file, which
+// includes all of the starting comments and #includes. Note that any
+// changes to the preamble part of this file must be mirrored in
+// Inputs/preamble.txt, since we diff against it.
+
+// RUN: %clang_cc1 -print-preamble %s > %t
+// RUN: echo END. >> %t
+// RUN: FileCheck < %t %s
+// XFAIL: win32
+
+// CHECK: // Preamble detection test: see below for comments and test commands.
+// CHECK-NEXT: //
+// CHECK-NEXT: #include <blah>
+// CHECK-NEXT: #ifndef FOO
+// CHECK-NEXT: #else
+// CHECK-NEXT: #ifdef BAR
+// CHECK-NEXT: #elif WIBBLE
+// CHECK-NEXT: #endif
+// CHECK-NEXT: #pragma unknown
+// CHECK-NEXT: #endif
+// CHECK-NEXT: END.