[PATCH] Test for empty .clang-format file.

[Alexander Kornienko]

Hi djasper,

Test clang-format's handling of empty .clang-format files.

http://llvm-reviews.chandlerc.com/D1562

Files:
  test/Format/style-on-command-line.cpp

Index: test/Format/style-on-command-line.cpp
===================================================================
--- test/Format/style-on-command-line.cpp
+++ test/Format/style-on-command-line.cpp
@@ -5,8 +5,10 @@
 // RUN: clang-format -style="{lsjd}" %t.cpp 2>&1 | FileCheck -strict-whitespace -check-prefix=CHECK4 %s
 // RUN: [ ! -e %T/.clang-format ] || rm %T/.clang-format
 // RUN: clang-format -style=file %t.cpp 2>&1 | FileCheck -strict-whitespace -check-prefix=CHECK5 %s
-// RUN: printf "BasedOnStyle: google\nIndentWidth: 5\n" > %T/.clang-format
+// RUN: printf "\n" > %T/.clang-format
 // RUN: clang-format -style=file %t.cpp 2>&1 | FileCheck -strict-whitespace -check-prefix=CHECK6 %s
+// RUN: printf "BasedOnStyle: google\nIndentWidth: 5\n" > %T/.clang-format
+// RUN: clang-format -style=file %t.cpp 2>&1 | FileCheck -strict-whitespace -check-prefix=CHECK7 %s
 void f() {
 // CHECK1: {{^        int\* i;$}}
 // CHECK2: {{^       int \*i;$}}
@@ -17,7 +19,9 @@
 // CHECK4: {{^  int \*i;$}}
 // CHECK5: Can't find usable .clang-format, using LLVM style
 // CHECK5: {{^  int \*i;$}}
-// CHECK6: {{^     int\* i;$}}
+// CHECK6: Can't find usable .clang-format, using LLVM style
+// CHECK6: {{^  int \*i;$}}
+// CHECK7: {{^     int\* i;$}}
 int*i;
 int j;
 }
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