1 files changed, 42 insertions, 0 deletions
diff --git a/share/extensions/tests/test_inkex_deprecated.py b/share/extensions/tests/test_inkex_deprecated.py
new file mode 100644
index 0000000..3ec1258
--- /dev/null
+++ b/share/extensions/tests/test_inkex_deprecated.py
@@ -0,0 +1,42 @@
+# coding=utf-8
+"""Test base inkex module functionality"""
+from __future__ import absolute_import, print_function, unicode_literals
+from pathlib import Path
+import warnings
+
+from inkex.deprecated import _deprecated
+from inkex.tester import TestCase
+
+
+class DeprecatedTests(TestCase):
+    """Test ways in which we deprecate code"""
+
+    maxDiff = 10000
+
+    def assertDeprecated(
+        self, call, msg, *args, **kwargs
+    ):  # pylint: disable=invalid-name
+        """Catch deprecation warnings and test their output"""
+        with warnings.catch_warnings(record=True) as warns:
+            warnings.simplefilter("always")
+            call(*args, **kwargs)
+            if msg is None:
+                self.assertFalse(warns, "Expected no warnings, got warnings!")
+            else:
+                self.assertTrue(warns, "No warning was returned, expected warning!")
+                if msg is not False:
+                    self.assertEqual(
+                        str(warns[0].category.__name__), "DeprecationWarning"
+                    )
+                return warns[0]
+
+    def test_warning(self):
+        """What happens when we deprecate things"""
+        self.assertDeprecated(_deprecated, None, "", stack=0, level=0)
+        self.assertDeprecated(_deprecated, "FOO", "FOO", stack=0, level=1)
+
+    def test_traceback(self):
+        """Traceback is possible for deprecation warnings"""
+        warn = self.assertDeprecated(_deprecated, False, "BAR", stack=0, level=2)
+        self.assertIn(str(Path("inkex") / "deprecated"), str(warn.message))
+        self.assertIn("test_inkex_deprecated.py", str(warn.message))