Use parse_path(), use absolute path for memo file removal

No need to do the path-splitting and -reassmbling manually, that's
exactly what parse_path() is there for.

Author: ehrenfeu

tests/imagej/bioformats/write_bf_memoryfile/test_01.py

@@ -2,21 +2,23 @@
 
 
 import os
+from imcflibs.pathtools import parse_path
 from imcflibs.imagej import bioformats
 
 
-parent_dir = str(PYTHON_IMCFLIBS_TESTDATA).replace("\\", "/")
-filename = "10x_phmax.czi"
-full_path = parent_dir + "/" + "10x_phmax.czi"
-bfmemofilename = "." + filename + ".bfmemo"
-os.chdir(parent_dir)  # DANGEROUS, relative paths and calling remove() below!
-if os.path.isfile(bfmemofilename):
-    print("bf memo file already existed and was removed")
-    os.remove(bfmemofilename)
+components = parse_path("systems/lsm700/beads/10x_phmax.czi", PYTHON_IMCFLIBS_TESTDATA)
+full_path = components["full"]
+bfmemofile = components["path"] + "." + components["fname"] + ".bfmemo"
+
+if os.path.isfile(bfmemofile):
+    print("BF memory file [%s] already exists, removing..." % bfmemofile)
+    os.remove(bfmemofile)
+
 
 bioformats.write_bf_memoryfile(full_path)
 
-if not os.path.isfile(bfmemofilename):
-    print("Test FAILED. A bf memo file does not exist.")
+
+if not os.path.isfile(bfmemofile):
+    print("Test FAILED: can't find BF memory file [%s]" % bfmemofile)
 else:
-    print("Test passed. A bf memo file was created.")
+    print("Test passed, BF memory file [%s] was created." % bfmemofile)