Allow for multiple reference text files

python/plugins/processing/tests/AlgorithmsTestBase.py

@@ -368,8 +368,17 @@ def check_results(self, results, context, params, expected):
                 else:
                     self.assertEqual(strhash, expected_result['hash'])
             elif 'file' == expected_result['type']:
-                expected_filepath = self.filepath_from_param(expected_result)
                 result_filepath = results[id]
+                if isinstance(expected_result.get('name'), list):
+                    # test to see if any match expected
+                    for path in expected_result['name']:
+                        expected_filepath = self.filepath_from_param({'name': path})
+                        if self.checkFilesEqual(expected_filepath, result_filepath):
+                            break
+                    else:
+                        expected_filepath = self.filepath_from_param({'name': expected_result['name'][0]})
+                else:
+                    expected_filepath = self.filepath_from_param(expected_result)
 
                 self.assertFilesEqual(expected_filepath, result_filepath)
             elif 'directory' == expected_result['type']:

python/testing/__init__.py

@@ -196,7 +196,7 @@ def sort_by_pk_or_fid(f):
 
         return True
 
-    def assertFilesEqual(self, filepath_expected, filepath_result):
+    def checkFilesEqual(self, filepath_expected, filepath_result, use_asserts=False):
         with open(filepath_expected, 'r') as file_expected:
             with open(filepath_result, 'r') as file_result:
                 diff = difflib.unified_diff(
@@ -206,7 +206,14 @@ def assertFilesEqual(self, filepath_expected, filepath_result):
                     tofile='result',
                 )
                 diff = list(diff)
-                self.assertEqual(0, len(diff), ''.join(diff))
+                eq = not len(diff)
+                if use_asserts:
+                    self.assertEqual(0, len(diff), ''.join(diff))
+                else:
+                    return eq
+
+    def assertFilesEqual(self, filepath_expected, filepath_result):
+        self.checkFilesEqual(filepath_expected, filepath_result, use_asserts=True)
 
     def assertDirectoriesEqual(self, dirpath_expected, dirpath_result):
         """ Checks whether both directories have the same content (recursively) and raises an assertion error if not. """