1 files changed, 36 insertions, 0 deletions
diff --git a/Cython/Compiler/Tests/Utils.py b/Cython/Compiler/Tests/Utils.py
new file mode 100644
index 000000000..a158ecc50
--- /dev/null
+++ b/Cython/Compiler/Tests/Utils.py
@@ -0,0 +1,36 @@
+import copy
+
+from .. import Options
+
+
+def backup_Options():
+    backup = {}
+    for name, value in vars(Options).items():
+        # we need a deep copy of _directive_defaults, because they can be changed
+        if name == '_directive_defaults':
+            value = copy.deepcopy(value)
+        backup[name] = value
+    return backup
+
+
+def restore_Options(backup):
+    no_value = object()
+    for name, orig_value in backup.items():
+        if getattr(Options, name, no_value) != orig_value:
+            setattr(Options, name, orig_value)
+    # strip Options from new keys that might have been added:
+    for name in vars(Options).keys():
+        if name not in backup:
+            delattr(Options, name)
+
+
+def check_global_options(expected_options, white_list=[]):
+    """
+    returns error message of "" if check Ok
+    """
+    no_value = object()
+    for name, orig_value in expected_options.items():
+        if name not in white_list:
+            if getattr(Options, name, no_value) != orig_value:
+                return "error in option " + name
+    return ""