FIX: simple use case int test

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - the restricted_path argument allows to crawl only a subtree
 - You can now access the file system path of a structure element (if it has one) using the variable
   name "<converter name>\_path"
+- added the arguments 'add-prefix' and 'remove-prefix' to the command line and `crawler_main`
 
 ### Changed ###
 

integrationtests/test_data/extroot/use_case_simple_presentation/cfood.yml

@@ -68,8 +68,8 @@ extroot:
               parents:
                 - mdfile
               role: File
-              path: $DataFile
-              file: $DataFile
+              path: $DataFile_path
+              file: $DataFile_path
 
             Experiment: {}
 

integrationtests/test_use_case_simple_presentation.py

@@ -63,7 +63,7 @@ def test_complete_crawler(
                  True,
                  os.path.join(DATADIR, "provenance.yml"),
                  False,
-                 remove_prefix="/use_case_simple_presentation")
+                 remove_prefix=os.path.abspath(DATADIR))
 
     res = db.execute_query("FIND Record Experiment")
     assert len(res) == 1

src/caoscrawler/crawl.py

@@ -1308,7 +1308,8 @@ def crawler_main(crawled_directory_path: str,
                         elem.path = elem.path[len(remove_prefix):]
                     else:
                         raise RuntimeError("Prefix shall be removed from file path but the path "
-                                           "does not start with the prefix")
+                                           "does not start with the prefix:"
+                                           f"\n{remove_prefix}\n{elem.path}")
                 if add_prefix:
                     elem.path = add_prefix + elem.path
                 elem.file = None