Allow multiple sources for duplicate consistency checks; break into multiple unit test to improve output

test/duplicate_consistency/frodokem1344shake_clean.yml

@@ -1,7 +1,8 @@
-source:
+consistency_checks:
+- source:
     scheme: frodokem640shake
     implementation: clean
-files:
+  files:
     - common.h
     - kem.c
     - matrix_shake.c

test/duplicate_consistency/frodokem640aes_clean.yml

@@ -1,7 +1,8 @@
-source:
+consistency_checks:
+- source:
     scheme: frodokem640shake
     implementation: clean
-files:
+  files:
     - common.h
     - params.h
     - kem.c

test/duplicate_consistency/frodokem976shake_clean.yml

@@ -1,7 +1,8 @@
-source:
+consistency_checks:
+- source:
     scheme: frodokem640shake
     implementation: clean
-files:
+  files:
     - common.h
     - kem.c
     - matrix_shake.c

test/test_duplicate_consistency.py

@@ -9,22 +9,23 @@ import unittest
 import yaml
 
 def test_duplicate_consistency():
+    helpers.skip_windows()
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
             if os.path.isfile(os.path.join('duplicate_consistency', '{}_{}.yml'.format(scheme.name, implementation.name))):
-                yield check_duplicate_consistency, implementation
+                metafile = os.path.join('duplicate_consistency', '{}_{}.yml'.format(implementation.scheme.name, implementation.name))
+                with open(metafile, encoding='utf-8') as f:
+                    metadata = yaml.load(f.read())
+                    for group in metadata['consistency_checks']:
+                        source = pqclean.Implementation.by_name(group['source']['scheme'], group['source']['implementation'])
+                        for file in group['files']:
+                            yield check_duplicate_consistency, implementation, source, file
 
 def file_get_contents(filename):
     with open(filename) as f:
         return f.read()
 
-def check_duplicate_consistency(implementation):
-    helpers.skip_windows()
-    metafile = os.path.join('duplicate_consistency', '{}_{}.yml'.format(implementation.scheme.name, implementation.name))
-    with open(metafile, encoding='utf-8') as f:
-        metadata = yaml.load(f.read())
-        source = pqclean.Implementation.by_name(metadata['source']['scheme'], metadata['source']['implementation'])
-        for file in metadata['files']:
+def check_duplicate_consistency(implementation, source, file):
     transformed_src = helpers.run_subprocess(
         ['sed', '-e', 's/{}/{}/g'.format(source.namespace_prefix(), implementation.namespace_prefix()), os.path.join(source.path(), file)]
     )