Ceph

I disabled the ColSplitTest1/ColSplitTest2 tests (see bug #5310).

Currently, this test case just crashes with unclear error message:

[ RUN ] EXT4StoreTest._detect_fs
terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_S_construct null not valid

Found in gdb:
#6 0x00007f9afdd1a787 in std::__throw_logic_error(char const*) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7 0x00007f9afdd58509 in char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#8 0x00007f9afdd585e3 in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9 0x000000000091ffe5 in EXT4StoreTest__detect_fs_Test::TestBody (this=0x1796990) at test/filestore/store_test.cc:835

835 const string disk(::getenv("DISK"));

Something is causing the string constructor to throw an error on attempt to create an empty string. Even if this were corrected this test would failed on the next line anyway because of the string size.

836 EXPECT_LT((unsigned)0, disk.size());