[LUCY-160] Always disable symlink tests on Windows

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.1.0 (incubating)
• Fix Version/s: 0.1.1 (incubating), 0.2.0 (incubating)
• Component/s: Core
• Assignee: Marvin Humphrey
• Reporter: Marvin Humphrey
• Created: 26/Jun/11 04:07
• Updated: 01/Jul/11 05:05
• Resolved: 01/Jul/11 05:05

Description

The enabling of test_preserve_symlinks() test in TestFSFolder.c has heretofore
been keyed off of the existence of the unistd.h header file. This has caused
errors under Strawberry Perl, which provides the unistd.h header but without a
symlink() function. The solution is to disable the test based on whether the
_WIN32 symbol is defined.

We also add a test which uses windows.h and CreateSymbolicLink() rather than
unistd.h and symlink(). However it must remain disabled by default, since
CreateSymbolicLink() fails unless the user running the test has administrator
privileges.