The Coherency Test will not correctly resolve a filepath in the <contributor><source_tag> with an ampersand ascii code.
For example, if you export from the following file:
C:\spaces & ampersand test\box.dae
which is written as the following <source_data> tag
then the Coherency Test returns the following error:
ERROR: Failed to parse file:///C:/spaces %26 ampersand test/box.dae
To reproduce this issue, open test.zip and copy "spaces & ampersand test" into C:\.
Included are a Maya 8.5 scene (C:\spaces & ampersand test\box.mb) which, when exported with ColladaMaya 3.04D, generates (C:\spaces & ampersand test\box.dae).
This box.dae is opened (via File->Open not drag and drop or import) in Maya and re-exported as "C:\spaces & ampersand test\box_reexport.dae".
Steps to Reproduce:
1) Drag and drop box_reexport.dae (in C:\spaces & ampersand test\ along with box.dae) into the Coherency Test.