Fix the use of deprecated inspect.getargspec() on Python 3

Mickaël Schoentgen · Mickaël Schoentgen · commit d68a778e3bad · 2018-08-10T18:30:22.000+02:00
diff --git a/tests/languages/all_test.py b/tests/languages/all_test.py
@@ -1,20 +1,34 @@
 from __future__ import unicode_literals
 
+import functools
 import inspect
 
 import pytest
+import six
 
 from pre_commit.languages.all import all_languages
 from pre_commit.languages.all import languages
 
 
+if six.PY2:  # pragma: no cover
+    ArgSpec = functools.partial(
+        inspect.ArgSpec, varargs=None, keywords=None, defaults=None,
+    )
+    getargspec = inspect.getargspec
+else:
+    ArgSpec = functools.partial(
+        inspect.FullArgSpec, varargs=None, varkw=None, defaults=None,
+        kwonlyargs=[], kwonlydefaults=None, annotations={},
+    )
+    getargspec = inspect.getfullargspec
+
+
 @pytest.mark.parametrize('language', all_languages)
 def test_install_environment_argspec(language):
-    expected_argspec = inspect.ArgSpec(
+    expected_argspec = ArgSpec(
         args=['prefix', 'version', 'additional_dependencies'],
-        varargs=None, keywords=None, defaults=None,
     )
-    argspec = inspect.getargspec(languages[language].install_environment)
+    argspec = getargspec(languages[language].install_environment)
     assert argspec == expected_argspec
 
 
@@ -25,28 +39,20 @@ def test_ENVIRONMENT_DIR(language):
 
 @pytest.mark.parametrize('language', all_languages)
 def test_run_hook_argpsec(language):
-    expected_argspec = inspect.ArgSpec(
-        args=['prefix', 'hook', 'file_args'],
-        varargs=None, keywords=None, defaults=None,
-    )
-    argspec = inspect.getargspec(languages[language].run_hook)
+    expected_argspec = ArgSpec(args=['prefix', 'hook', 'file_args'])
+    argspec = getargspec(languages[language].run_hook)
     assert argspec == expected_argspec
 
 
 @pytest.mark.parametrize('language', all_languages)
 def test_get_default_version_argspec(language):
-    expected_argspec = inspect.ArgSpec(
-        args=[], varargs=None, keywords=None, defaults=None,
-    )
-    argspec = inspect.getargspec(languages[language].get_default_version)
+    expected_argspec = ArgSpec(args=[])
+    argspec = getargspec(languages[language].get_default_version)
     assert argspec == expected_argspec
 
 
 @pytest.mark.parametrize('language', all_languages)
 def test_healthy_argspec(language):
-    expected_argspec = inspect.ArgSpec(
-        args=['prefix', 'language_version'],
-        varargs=None, keywords=None, defaults=None,
-    )
-    argspec = inspect.getargspec(languages[language].healthy)
+    expected_argspec = ArgSpec(args=['prefix', 'language_version'])
+    argspec = getargspec(languages[language].healthy)
     assert argspec == expected_argspec
