[glib: 1/2] tests: Fix running fileutils test in cwd which is a symlink

[Philip Withnall <pwithnall src gnome org>]

commit d1d17e83c6fabb1860fdfb2ec4bbd0b76032892b
Author: Philip Withnall <withnall endlessm com>
Date:   Wed Jul 11 15:43:22 2018 +0200

    tests: Fix running fileutils test in cwd which is a symlink
    
    If the fileutils test was run in a directory which is a symlink (for
    example, on macOS, /tmp is often a symlink to /private/tmp), a path
    comparison was failing. Compare the paths as inodes instead.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    https://gitlab.gnome.org/GNOME/glib/issues/889

 glib/tests/fileutils.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
---
diff --git a/glib/tests/fileutils.c b/glib/tests/fileutils.c
index f9cae5709..4772540c3 100644
--- a/glib/tests/fileutils.c
+++ b/glib/tests/fileutils.c
@@ -887,6 +887,7 @@ test_stdio_wrappers (void)
   gint ret;
   struct utimbuf ut;
   GError *error = NULL;
+  GStatBuf path_statbuf, cwd_statbuf;
 
   /* The permissions tests here don’t work when running as root. */
 #ifdef G_OS_UNIX
@@ -920,7 +921,13 @@ test_stdio_wrappers (void)
   ret = g_chdir (path);
   g_assert_cmpint (ret, ==, 0);
   cwd = g_get_current_dir ();
-  g_assert_true (g_str_equal (cwd, path));
+  /* We essentially want to check that cwd == path, but we can’t compare the
+   * paths directly since the tests might be running under a symlink (for
+   * example, /tmp is sometimes a symlink). Compare the inode numbers instead. */
+  g_assert_cmpint (g_stat (cwd, &cwd_statbuf), ==, 0);
+  g_assert_cmpint (g_stat (path, &path_statbuf), ==, 0);
+  g_assert_true (cwd_statbuf.st_dev == path_statbuf.st_dev &&
+                 cwd_statbuf.st_ino == path_statbuf.st_ino);
   g_free (cwd);
   g_free (path);