Fixes 477, optional src_dir in tst_(rmdir,unlink) (#493)

tst_rmdir and tst_unlink now pass for passthrough_hp.

Previously, tst_rmdir and tst_unlink created the directory / file
using src_dir, causing the test to fail as the cache was stale.
Now, the src_dir is optional. When cache is enabled, tst_rmdir
and tst_unlink do not provide a src_dir, forcing the test to
use mnt_dir itself.

1 files changed, 20 insertions, 8 deletions

diff --git a/test/test_examples.py b/test/test_examples.py
index 5d6dacc..da50b2a 100755
--- a/test/test_examples.py
+++ b/test/test_examples.py
@@ -143,8 +143,8 @@ def test_passthrough(short_tmpdir, name, debug, output_checker, writeback):
         tst_append(src_dir, work_dir)
         tst_seek(src_dir, work_dir)
         tst_mkdir(work_dir)
-        tst_rmdir(src_dir, work_dir)
-        tst_unlink(src_dir, work_dir)
+        tst_rmdir(work_dir, src_dir)
+        tst_unlink(work_dir, src_dir)
         tst_symlink(work_dir)
         if os.getuid() == 0:
             tst_chown(work_dir)
@@ -199,8 +199,14 @@ def test_passthrough_hp(short_tmpdir, cache, output_checker):
         tst_append(src_dir, mnt_dir)
         tst_seek(src_dir, mnt_dir)
         tst_mkdir(mnt_dir)
-        tst_rmdir(src_dir, mnt_dir)
-        tst_unlink(src_dir, mnt_dir)
+        if cache:
+            # if cache is enabled, no operations should go through
+            # src_dir as the cache will become stale.
+            tst_rmdir(mnt_dir)
+            tst_unlink(mnt_dir)
+        else:
+            tst_rmdir(mnt_dir, src_dir)
+            tst_unlink(mnt_dir, src_dir)
         tst_symlink(mnt_dir)
         if os.getuid() == 0:
             tst_chown(mnt_dir)
@@ -387,10 +393,13 @@ def os_open(name, flags):
 def os_create(name):
     os.close(os.open(name, os.O_CREAT | os.O_RDWR))
 
-def tst_unlink(src_dir, mnt_dir):
+def tst_unlink(mnt_dir, src_dir=None):
     name = name_generator()
     fullname = mnt_dir + "/" + name
-    with open(pjoin(src_dir, name), 'wb') as fh:
+    srcname = fullname
+    if src_dir is not None:
+        srcname = pjoin(src_dir, name)
+    with open(srcname, 'wb') as fh:
         fh.write(b'hello')
     assert name in os.listdir(mnt_dir)
     os.unlink(fullname)
@@ -410,10 +419,13 @@ def tst_mkdir(mnt_dir):
     assert fstat.st_nlink in (1,2)
     assert dirname in os.listdir(mnt_dir)
 
-def tst_rmdir(src_dir, mnt_dir):
+def tst_rmdir(mnt_dir, src_dir=None):
     name = name_generator()
     fullname = mnt_dir + "/" + name
-    os.mkdir(pjoin(src_dir, name))
+    srcname = fullname
+    if src_dir is not None:
+        srcname = pjoin(src_dir, name)
+    os.mkdir(srcname)
     assert name in os.listdir(mnt_dir)
     os.rmdir(fullname)
     with pytest.raises(OSError) as exc_info: