gh-71339: Use new assertion methods in the http tests

Lib/test/test_http_cookiejar.py

@@ -1515,7 +1515,7 @@ def test_netscape_example_1(self):
         h = req.get_header("Cookie")
         self.assertIn("PART_NUMBER=ROCKET_LAUNCHER_0001", h)
         self.assertIn("CUSTOMER=WILE_E_COYOTE", h)
-        self.assertTrue(h.startswith("SHIPPING=FEDEX;"))
+        self.assertStartsWith(h, "SHIPPING=FEDEX;")
 
     def test_netscape_example_2(self):
         # Second Example transaction sequence:

Lib/test/test_http_cookies.py

@@ -180,7 +180,7 @@ def test_special_attrs(self):
         C = cookies.SimpleCookie('Customer="WILE_E_COYOTE"')
         C['Customer']['expires'] = 0
         # can't test exact output, it always depends on current date/time
-        self.assertTrue(C.output().endswith('GMT'))
+        self.assertEndsWith(C.output(), 'GMT')
 
         # loading 'expires'
         C = cookies.SimpleCookie()

Lib/test/test_httplib.py

@@ -273,31 +273,31 @@ def test_ipv6host_header(self):
         sock = FakeSocket('')
         conn.sock = sock
         conn.request('GET', '/foo')
-        self.assertTrue(sock.data.startswith(expected))
+        self.assertStartsWith(sock.data, expected)
 
         expected = b'GET /foo HTTP/1.1\r\nHost: [2001:102A::]\r\n' \
                    b'Accept-Encoding: identity\r\n\r\n'
         conn = client.HTTPConnection('[2001:102A::]')
         sock = FakeSocket('')
         conn.sock = sock
         conn.request('GET', '/foo')
-        self.assertTrue(sock.data.startswith(expected))
+        self.assertStartsWith(sock.data, expected)
 
         expected = b'GET /foo HTTP/1.1\r\nHost: [fe80::]\r\n' \
                    b'Accept-Encoding: identity\r\n\r\n'
         conn = client.HTTPConnection('[fe80::%2]')
         sock = FakeSocket('')
         conn.sock = sock
         conn.request('GET', '/foo')
-        self.assertTrue(sock.data.startswith(expected))
+        self.assertStartsWith(sock.data, expected)
 
         expected = b'GET /foo HTTP/1.1\r\nHost: [fe80::]:81\r\n' \
                    b'Accept-Encoding: identity\r\n\r\n'
         conn = client.HTTPConnection('[fe80::%2]:81')
         sock = FakeSocket('')
         conn.sock = sock
         conn.request('GET', '/foo')
-        self.assertTrue(sock.data.startswith(expected))
+        self.assertStartsWith(sock.data, expected)
 
     def test_malformed_headers_coped_with(self):
         # Issue 19996
@@ -335,9 +335,9 @@ def test_parse_all_octets(self):
         self.assertIsNotNone(resp.getheader('obs-text'))
         self.assertIn('obs-text', resp.msg)
         for folded in (resp.getheader('obs-fold'), resp.msg['obs-fold']):
-            self.assertTrue(folded.startswith('text'))
+            self.assertStartsWith(folded, 'text')
             self.assertIn(' folded with space', folded)
-            self.assertTrue(folded.endswith('folded with tab'))
+            self.assertEndsWith(folded, 'folded with tab')
 
     def test_invalid_headers(self):
         conn = client.HTTPConnection('example.com')
@@ -1000,8 +1000,7 @@ def test_send_file(self):
             sock = FakeSocket(body)
             conn.sock = sock
             conn.request('GET', '/foo', body)
-            self.assertTrue(sock.data.startswith(expected), '%r != %r' %
-                    (sock.data[:len(expected)], expected))
+            self.assertStartsWith(sock.data, expected)
 
     def test_send(self):
         expected = b'this is a test this is only a test'
@@ -1545,7 +1544,7 @@ def mypeek(n=-1):
                 # then unbounded peek
                 p2 = resp.peek()
                 self.assertGreaterEqual(len(p2), len(p))
-                self.assertTrue(p2.startswith(p))
+                self.assertStartsWith(p2, p)
                 next = resp.read(len(p2))
                 self.assertEqual(next, p2)
             else:
@@ -1570,7 +1569,7 @@ def _verify_readline(self, readline, expected, limit=5):
             line = readline(limit)
             if line and line != b"foo":
                 if len(line) < 5:
-                    self.assertTrue(line.endswith(b"\n"))
+                    self.assertEndsWith(line, b"\n")
             all.append(line)
             if not line:
                 break
@@ -1765,7 +1764,7 @@ def test_client_constants(self):
         ]
         for const in expected:
             with self.subTest(constant=const):
-                self.assertTrue(hasattr(client, const))
+                self.assertHasAttr(client, const)
 
 
 class SourceAddressTest(TestCase):
@@ -2407,8 +2406,7 @@ def test_tunnel_connect_single_send_connection_setup(self):
                 msg=f'unexpected number of send calls: {mock_send.mock_calls}')
         proxy_setup_data_sent = mock_send.mock_calls[0][1][0]
         self.assertIn(b'CONNECT destination.com', proxy_setup_data_sent)
-        self.assertTrue(
-                proxy_setup_data_sent.endswith(b'\r\n\r\n'),
+        self.assertEndsWith(proxy_setup_data_sent, b'\r\n\r\n',
                 msg=f'unexpected proxy data sent {proxy_setup_data_sent!r}')
 
     def test_connect_put_request(self):

Lib/test/test_httpservers.py

@@ -335,8 +335,7 @@ def test_get(self):
             self.con.request('GET', '/')
             self.con.getresponse()
 
-        self.assertTrue(
-            err.getvalue().endswith('"GET / HTTP/1.1" 200 -\n'))
+        self.assertEndsWith(err.getvalue(), '"GET / HTTP/1.1" 200 -\n')
 
     def test_err(self):
         self.con = http.client.HTTPConnection(self.HOST, self.PORT)
@@ -347,8 +346,8 @@ def test_err(self):
             self.con.getresponse()
 
         lines = err.getvalue().split('\n')
-        self.assertTrue(lines[0].endswith('code 404, message File not found'))
-        self.assertTrue(lines[1].endswith('"ERROR / HTTP/1.1" 404 -'))
+        self.assertEndsWith(lines[0], 'code 404, message File not found')
+        self.assertEndsWith(lines[1], '"ERROR / HTTP/1.1" 404 -')
 
 
 class SimpleHTTPServerTestCase(BaseTestCase):
@@ -472,7 +471,7 @@ def test_get_dir_redirect_location_domain_injection_bug(self):
         response = self.request(attack_url)
         self.check_status_and_reason(response, HTTPStatus.MOVED_PERMANENTLY)
         location = response.getheader('Location')
-        self.assertFalse(location.startswith('//'), msg=location)
+        self.assertNotStartsWith(location, '//')
         self.assertEqual(location, expected_location,
                 msg='Expected Location header to start with a single / and '
                 'end with a / as this is a directory redirect.')
@@ -495,7 +494,7 @@ def test_get_dir_redirect_location_domain_injection_bug(self):
         # We're just ensuring that the scheme and domain make it through, if
         # there are or aren't multiple slashes at the start of the path that
         # follows that isn't important in this Location: header.
-        self.assertTrue(location.startswith('https://pypi.org/'), msg=location)
+        self.assertStartsWith(location, 'https://pypi.org/')
 
     def test_get(self):
         #constructs the path relative to the root directory of the HTTPServer
@@ -1094,7 +1093,7 @@ def test_extra_space(self):
             b'Host: dummy\r\n'
             b'\r\n'
         )
-        self.assertTrue(result[0].startswith(b'HTTP/1.1 400 '))
+        self.assertStartsWith(result[0], b'HTTP/1.1 400 ')
         self.verify_expected_headers(result[1:result.index(b'\r\n')])
         self.assertFalse(self.handler.get_called)