use assert[Not]In where appropriate

A patch from Dave Malcolm.

1 files changed, 5 insertions, 5 deletions

diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
index 0b1a637..ab6096a 100755
--- a/Lib/test/test_wsgiref.py
+++ b/Lib/test/test_wsgiref.py
@@ -440,7 +440,7 @@ class HeaderTests(TestCase):
             h.get("content-disposition"))
 
         del h['content-disposition']
-        self.assertTrue(b'content-disposition' not in h)
+        self.assertNotIn(b'content-disposition', h)
 
 
 class ErrorHandler(BaseCGIHandler):
@@ -493,7 +493,7 @@ class HandlerTests(TestCase):
             if k not in empty:
                 self.assertEqual(env[k],v)
         for k,v in empty.items():
-            self.assertTrue(k in env)
+            self.assertIn(k, env)
 
     def testEnviron(self):
         h = TestHandler(X="Y")
@@ -506,7 +506,7 @@ class HandlerTests(TestCase):
         h = BaseCGIHandler(None,None,None,{})
         h.setup_environ()
         for key in 'wsgi.url_scheme', 'wsgi.input', 'wsgi.errors':
-            self.assertTrue(key in h.environ)
+            self.assertIn(key, h.environ)
 
     def testScheme(self):
         h=TestHandler(HTTPS="on"); h.setup_environ()
@@ -593,7 +593,7 @@ class HandlerTests(TestCase):
             "\r\n%s" % (h.error_status,len(h.error_body),h.error_body)
             ).encode("iso-8859-1"))
 
-        self.assertTrue("AssertionError" in h.stderr.getvalue())
+        self.assertIn("AssertionError", h.stderr.getvalue())
 
     def testErrorAfterOutput(self):
         MSG = "Some output has been sent"
@@ -606,7 +606,7 @@ class HandlerTests(TestCase):
         self.assertEqual(h.stdout.getvalue(),
             ("Status: 200 OK\r\n"
             "\r\n"+MSG).encode("iso-8859-1"))
-        self.assertTrue("AssertionError" in h.stderr.getvalue())
+        self.assertIn("AssertionError", h.stderr.getvalue())
 
 
     def testHeaderFormats(self):