Add locales to available_features for tests.

Linux has a lot of failures caused by not having support for certain
locales. Since these come out as a lot of noise in the test results,
have lit.cfg detect the presence of the various locales used in the
tests and add them to config.available_features as locale.LOCALE_NAME.

This patch also adds REQUIRES: locale.REQUIRED_LOCALE to every test that
I saw failing in this manner. We probably need to add more for all the
tests requiring en_US.UTF-8, but we can do that on an as-needed basis.

One thing that concerns me is how many tests get skipped because of
missing locales (especially in regex/). We should make a point of
splitting up any tests that test default behavior _and_ behavior under a
given locale so that we aren't losing coverage for default behavior.

llvm-svn: 214753

4 files changed, 11 insertions, 0 deletions

diff --git a/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/copyfmt.pass.cpp b/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/copyfmt.pass.cpp
index 80f6e2672de..c46e2c054e8 100644
--- a/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/copyfmt.pass.cpp
+++ b/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/copyfmt.pass.cpp
@@ -7,6 +7,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+// REQUIRES: locale.fr_FR.UTF-8
+
 // <ios>
 
 // template <class charT, class traits> class basic_ios
diff --git a/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/move.pass.cpp b/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/move.pass.cpp
index eb9262c9d81..509b836686c 100644
--- a/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/move.pass.cpp
+++ b/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/move.pass.cpp
@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.fr_FR.UTF-8
+
 // <ios>
 
 // template <class charT, class traits> class basic_ios
diff --git a/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/swap.pass.cpp b/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/swap.pass.cpp
index 08b8ec4a9b6..e44f4b32512 100644
--- a/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/swap.pass.cpp
+++ b/libcxx/test/input.output/iostreams.base/ios/basic.ios.members/swap.pass.cpp
@@ -7,6 +7,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+// REQUIRES: locale.fr_FR.UTF-8
+
 // <ios>
 
 // template <class charT, class traits> class basic_ios
diff --git a/libcxx/test/input.output/stream.buffers/streambuf/streambuf.members/streambuf.locales/locales.pass.cpp b/libcxx/test/input.output/stream.buffers/streambuf/streambuf.members/streambuf.locales/locales.pass.cpp
index 2c4f22b1cf0..deb2dc7c139 100644
--- a/libcxx/test/input.output/stream.buffers/streambuf/streambuf.members/streambuf.locales/locales.pass.cpp
+++ b/libcxx/test/input.output/stream.buffers/streambuf/streambuf.members/streambuf.locales/locales.pass.cpp
@@ -7,6 +7,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+// REQUIRES: locale.fr_FR.UTF-8
+
 // <streambuf>
 
 // template <class charT, class traits = char_traits<charT> >