pytest.raises: shim new API

test/conftest.py

@@ -2,6 +2,7 @@ import os
 import pytest
 import OpenSSL
 import functools
+from contextlib import contextmanager
 
 import mitmproxy.net.tcp
 
@@ -29,35 +30,19 @@ skip_appveyor = pytest.mark.skipif(
 original_pytest_raises = pytest.raises
 
 
+# TODO: remove this wrapper when pytest 3.1.0 is released
+@contextmanager
 @functools.wraps(original_pytest_raises)
 def raises(exc, *args, **kwargs):
-    if isinstance(exc, str):
-        return RaisesContext(exc)
-    else:
-        return original_pytest_raises(exc, *args, **kwargs)
+    with original_pytest_raises(exc, *args, **kwargs) as exc_info:
+        yield
+    if 'match' in kwargs:
+        assert exc_info.match(kwargs['match'])
 
 
 pytest.raises = raises
 
 
-class RaisesContext:
-    def __init__(self, expected_exception):
-        self.expected_exception = expected_exception
-
-    def __enter__(self):
-        return
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        if not exc_type:
-            raise AssertionError("No exception raised.")
-        else:
-            if self.expected_exception.lower() not in str(exc_val).lower():
-                raise AssertionError(
-                    "Expected %s, but caught %s" % (repr(self.expected_exception), repr(exc_val))
-                )
-        return True
-
-
 @pytest.fixture()
 def disable_alpn(monkeypatch):
     monkeypatch.setattr(mitmproxy.net.tcp, 'HAS_ALPN', False)

test/mitmproxy/addons/test_replace.py

@@ -16,16 +16,16 @@ class TestReplace:
         assert x == ("foo", "bar", "vo/ing/")
         x = replace.parse_hook("/bar/voing")
         assert x == (".*", "bar", "voing")
-        with pytest.raises("invalid replacement"):
+        with pytest.raises(Exception, match="Invalid replacement"):
             replace.parse_hook("/")
 
     def test_configure(self):
         r = replace.Replace()
         with taddons.context() as tctx:
             tctx.configure(r, replacements=[("one", "two", "three")])
-            with pytest.raises("invalid filter pattern"):
+            with pytest.raises(Exception, match="Invalid filter pattern"):
                 tctx.configure(r, replacements=[("~b", "two", "three")])
-            with pytest.raises("invalid regular expression"):
+            with pytest.raises(Exception, match="Invalid regular expression"):
                 tctx.configure(r, replacements=[("foo", "+", "three")])
             tctx.configure(r, replacements=["/a/b/c/"])
 

test/mitmproxy/addons/test_script.py

@@ -64,11 +64,11 @@ class TestParseCommand:
             script.parse_command("  ")
 
     def test_no_script_file(self):
-        with pytest.raises("not found"):
+        with pytest.raises(Exception, match="not found"):
             script.parse_command("notfound")
 
         with tutils.tmpdir() as dir:
-            with pytest.raises("not a file"):
+            with pytest.raises(Exception, match="Not a file"):
                 script.parse_command(dir)
 
     def test_parse_args(self):
@@ -204,7 +204,7 @@ class TestScriptLoader:
 
         f = tflow.tflow(resp=True)
         with m.handlecontext():
-            with pytest.raises("file not found"):
+            with pytest.raises(Exception, match="file not found"):
                 sl.run_once("nonexistent", [f])
 
     def test_simple(self):

test/mitmproxy/addons/test_setheaders.py

@@ -14,13 +14,13 @@ class TestSetHeaders:
         assert x == ("foo", "bar", "vo/ing/")
         x = setheaders.parse_setheader("/bar/voing")
         assert x == (".*", "bar", "voing")
-        with pytest.raises("invalid replacement"):
+        with pytest.raises(Exception, match="Invalid replacement"):
             setheaders.parse_setheader("/")
 
     def test_configure(self):
         sh = setheaders.SetHeaders()
         with taddons.context() as tctx:
-            with pytest.raises("invalid setheader filter pattern"):
+            with pytest.raises(Exception, match="Invalid setheader filter pattern"):
                 tctx.configure(sh, setheaders = [("~b", "one", "two")])
             tctx.configure(sh, setheaders = ["/foo/bar/voing"])
 

test/mitmproxy/addons/test_stickycookie.py

@@ -16,7 +16,7 @@ class TestStickyCookie:
     def test_config(self):
         sc = stickycookie.StickyCookie()
         with taddons.context() as tctx:
-            with pytest.raises("invalid filter"):
+            with pytest.raises(Exception, match="invalid filter"):
                 tctx.configure(sc, stickycookie="~b")
 
             tctx.configure(sc, stickycookie="foo")

test/mitmproxy/addons/test_streamfile.py

@@ -18,7 +18,7 @@ def test_configure():
             p = os.path.join(tdir, "foo")
             with pytest.raises(exceptions.OptionsError):
                 tctx.configure(sa, streamfile=tdir)
-            with pytest.raises("invalid filter"):
+            with pytest.raises(Exception, match="Invalid filter"):
                 tctx.configure(sa, streamfile=p, filtstr="~~")
             tctx.configure(sa, filtstr="foo")
             assert sa.filt

test/mitmproxy/addons/test_view.py

@@ -396,11 +396,11 @@ def test_configure():
     v = view.View()
     with taddons.context(options=Options()) as tctx:
         tctx.configure(v, filter="~q")
-        with pytest.raises("invalid interception filter"):
+        with pytest.raises(Exception, match="Invalid interception filter"):
             tctx.configure(v, filter="~~")
 
         tctx.configure(v, console_order="method")
-        with pytest.raises("unknown flow order"):
+        with pytest.raises(Exception, match="Unknown flow order"):
             tctx.configure(v, console_order="no")
 
         tctx.configure(v, console_order_reversed=True)

test/mitmproxy/net/http/http1/test_read.py

@@ -356,11 +356,11 @@ def test_read_chunked():
     assert b"".join(_read_chunked(BytesIO(data))) == b"ab"
 
     data = b"\r\n"
-    with pytest.raises("closed prematurely"):
+    with pytest.raises(Exception, match="closed prematurely"):
         b"".join(_read_chunked(BytesIO(data)))
 
     data = b"1\r\nfoo"
-    with pytest.raises("malformed chunked body"):
+    with pytest.raises(Exception, match="Malformed chunked body"):
         b"".join(_read_chunked(BytesIO(data)))
 
     data = b"foo\r\nfoo"
@@ -368,5 +368,5 @@ def test_read_chunked():
         b"".join(_read_chunked(BytesIO(data)))
 
     data = b"5\r\naaaaa\r\n0\r\n\r\n"
-    with pytest.raises("too large"):
+    with pytest.raises(Exception, match="too large"):
         b"".join(_read_chunked(BytesIO(data), limit=2))

test/mitmproxy/net/test_socks.py

@@ -181,9 +181,8 @@ def test_message_ipv6():
 
 def test_message_invalid_host():
     raw = tutils.treader(b"\xEE\x01\x00\x03\x0bexample@com\xDE\xAD\xBE\xEF")
-    with pytest.raises(socks.SocksError) as exc_info:
+    with pytest.raises(socks.SocksError, match="Invalid hostname: b'example@com'"):
         socks.Message.from_file(raw)
-    assert exc_info.match("Invalid hostname: b'example@com'")
 
 
 def test_message_invalid_rsv():

test/mitmproxy/net/test_tcp.py

@@ -430,7 +430,7 @@ class TestServerCipherListError(tservers.ServerTestBase):
     def test_echo(self):
         c = tcp.TCPClient(("127.0.0.1", self.port))
         with c.connect():
-            with pytest.raises("handshake error"):
+            with pytest.raises(Exception, match="handshake error"):
                 c.convert_to_ssl(sni="foo.com")
 
 
@@ -443,7 +443,7 @@ class TestClientCipherListError(tservers.ServerTestBase):
     def test_echo(self):
         c = tcp.TCPClient(("127.0.0.1", self.port))
         with c.connect():
-            with pytest.raises("cipher specification"):
+            with pytest.raises(Exception, match="cipher specification"):
                 c.convert_to_ssl(sni="foo.com", cipher_list="bogus")
 
 

test/mitmproxy/net/websockets/test_frame.py

@@ -108,9 +108,9 @@ class TestFrameHeader:
         assert not f2.mask
 
     def test_violations(self):
-        with pytest.raises("opcode"):
+        with pytest.raises(Exception, match="opcode"):
             websockets.FrameHeader(opcode=17)
-        with pytest.raises("masking key"):
+        with pytest.raises(Exception, match="Masking key"):
             websockets.FrameHeader(masking_key=b"x")
 
     def test_automask(self):

test/mitmproxy/test_flow.py

@@ -251,9 +251,8 @@ class TestSerialize:
         sio.write(b"bogus")
         sio.seek(0)
         r = mitmproxy.io.FlowReader(sio)
-        with pytest.raises(FlowReadException) as exc_info:
+        with pytest.raises(FlowReadException, match='Invalid data format'):
             list(r.stream())
-        assert exc_info.match('Invalid data format')
 
         sio = io.BytesIO()
         f = tflow.tdummyflow()
@@ -261,9 +260,8 @@ class TestSerialize:
         w.add(f)
         sio.seek(0)
         r = mitmproxy.io.FlowReader(sio)
-        with pytest.raises(FlowReadException) as exc_info:
+        with pytest.raises(FlowReadException, match='Unknown flow type'):
             list(r.stream())
-        assert exc_info.match('Unknown flow type')
 
         f = FlowReadException("foo")
         assert str(f) == "foo"
@@ -277,7 +275,7 @@ class TestSerialize:
         sio.seek(0)
 
         r = mitmproxy.io.FlowReader(sio)
-        with pytest.raises("version"):
+        with pytest.raises(Exception, match="version"):
             list(r.stream())
 
 
@@ -287,15 +285,15 @@ class TestFlowMaster:
         fm = master.Master(None, DummyServer())
         f = tflow.tflow(resp=True)
         f.request.content = None
-        with pytest.raises("missing"):
+        with pytest.raises(Exception, match="missing"):
             fm.replay_request(f)
 
         f.intercepted = True
-        with pytest.raises("intercepted"):
+        with pytest.raises(Exception, match="intercepted"):
             fm.replay_request(f)
 
         f.live = True
-        with pytest.raises("live"):
+        with pytest.raises(Exception, match="live"):
             fm.replay_request(f)
 
     def test_create_flow(self):

test/mitmproxy/test_optmanager.py

@@ -71,9 +71,9 @@ def test_options():
 
     with pytest.raises(TypeError):
         TO(nonexistent = "value")
-    with pytest.raises("no such option"):
+    with pytest.raises(Exception, match="No such option"):
         o.nonexistent = "value"
-    with pytest.raises("no such option"):
+    with pytest.raises(Exception, match="No such option"):
         o.update(nonexistent = "value")
 
     rec = []
@@ -97,7 +97,7 @@ def test_setter():
     f = o.setter("two")
     f("xxx")
     assert o.two == "xxx"
-    with pytest.raises("no such option"):
+    with pytest.raises(Exception, match="No such option"):
         o.setter("nonexistent")
 
 
@@ -108,7 +108,7 @@ def test_toggler():
     assert o.two is False
     f()
     assert o.two is True
-    with pytest.raises("no such option"):
+    with pytest.raises(Exception, match="No such option"):
         o.toggler("nonexistent")
 
 
@@ -193,11 +193,11 @@ def test_serialize():
     assert o2 == o
 
     t = "invalid: foo\ninvalid"
-    with pytest.raises("config error"):
+    with pytest.raises(Exception, match="Config error"):
         o2.load(t)
 
     t = "invalid"
-    with pytest.raises("config error"):
+    with pytest.raises(Exception, match="Config error"):
         o2.load(t)
 
     t = ""

test/mitmproxy/test_platform_pf.py

@@ -14,7 +14,7 @@ class TestLookup:
             p = tutils.test_data.path("mitmproxy/data/pf01")
             d = open(p, "rb").read()
         assert pf.lookup("192.168.1.111", 40000, d) == ("5.5.5.5", 80)
-        with pytest.raises("Could not resolve original destination"):
+        with pytest.raises(Exception, match="Could not resolve original destination"):
             pf.lookup("192.168.1.112", 40000, d)
-        with pytest.raises("Could not resolve original destination"):
+        with pytest.raises(Exception, match="Could not resolve original destination"):
             pf.lookup("192.168.1.111", 40001, d)

test/mitmproxy/test_proxy.py

@@ -96,27 +96,27 @@ class TestProcessProxyOptions:
 
     @mock.patch("mitmproxy.platform.original_addr", None)
     def test_no_transparent(self):
-        with pytest.raises("transparent mode not supported"):
+        with pytest.raises(Exception, match="Transparent mode not supported"):
             self.p("-T")
 
     @mock.patch("mitmproxy.platform.original_addr")
     def test_modes(self, _):
         self.assert_noerr("-R", "http://localhost")
-        with pytest.raises("expected one argument"):
+        with pytest.raises(Exception, match="expected one argument"):
             self.p("-R")
-        with pytest.raises("Invalid server specification"):
+        with pytest.raises(Exception, match="Invalid server specification"):
             self.p("-R", "reverse")
 
         self.assert_noerr("-T")
 
         self.assert_noerr("-U", "http://localhost")
-        with pytest.raises("Invalid server specification"):
+        with pytest.raises(Exception, match="Invalid server specification"):
             self.p("-U", "upstream")
 
         self.assert_noerr("--upstream-auth", "test:test")
-        with pytest.raises("expected one argument"):
+        with pytest.raises(Exception, match="expected one argument"):
             self.p("--upstream-auth")
-        with pytest.raises("mutually exclusive"):
+        with pytest.raises(Exception, match="mutually exclusive"):
             self.p("-R", "http://localhost", "-T")
 
     def test_client_certs(self):
@@ -125,14 +125,14 @@ class TestProcessProxyOptions:
             self.assert_noerr(
                 "--client-certs",
                 os.path.join(tutils.test_data.path("mitmproxy/data/clientcert"), "client.pem"))
-            with pytest.raises("path does not exist"):
+            with pytest.raises(Exception, match="path does not exist"):
                 self.p("--client-certs", "nonexistent")
 
     def test_certs(self):
         self.assert_noerr(
             "--cert",
             tutils.test_data.path("mitmproxy/data/testkey.pem"))
-        with pytest.raises("does not exist"):
+        with pytest.raises(Exception, match="does not exist"):
             self.p("--cert", "nonexistent")
 
     def test_insecure(self):
@@ -156,12 +156,12 @@ class TestProxyServer:
     def test_err(self):
         # binding to 0.0.0.0:1 works without special permissions on Windows
         conf = ProxyConfig(options.Options(listen_port=1))
-        with pytest.raises("error starting proxy server"):
+        with pytest.raises(Exception, match="Error starting proxy server"):
             ProxyServer(conf)
 
     def test_err_2(self):
         conf = ProxyConfig(options.Options(listen_host="invalidhost"))
-        with pytest.raises("error starting proxy server"):
+        with pytest.raises(Exception, match="Error starting proxy server"):
             ProxyServer(conf)
 
 

test/mitmproxy/test_proxy_config.py

@@ -3,7 +3,7 @@ from mitmproxy.proxy import config
 
 
 def test_parse_server_spec():
-    with pytest.raises("Invalid server specification"):
+    with pytest.raises(Exception, match="Invalid server specification"):
         config.parse_server_spec("")
     assert config.parse_server_spec("http://foo.com:88") == (
         "http", ("foo.com", 88)
@@ -14,7 +14,7 @@ def test_parse_server_spec():
     assert config.parse_server_spec("https://foo.com") == (
         "https", ("foo.com", 443)
     )
-    with pytest.raises("Invalid server specification"):
+    with pytest.raises(Exception, match="Invalid server specification"):
         config.parse_server_spec("foo.com")
-    with pytest.raises("Invalid server specification"):
+    with pytest.raises(Exception, match="Invalid server specification"):
         config.parse_server_spec("http://")

test/pathod/test_language_base.py

@@ -149,11 +149,11 @@ class TestTokValueFile:
             v = base.TokValue.parseString("<path2")[0]
             with pytest.raises(exceptions.FileAccessDenied):
                 v.get_generator(language.Settings(staticdir=t))
-            with pytest.raises("access disabled"):
+            with pytest.raises(Exception, match="access disabled"):
                 v.get_generator(language.Settings())
 
             v = base.TokValue.parseString("</outside")[0]
-            with pytest.raises("outside"):
+            with pytest.raises(Exception, match="outside"):
                 v.get_generator(language.Settings(staticdir=t))
 
     def test_spec(self):
@@ -194,32 +194,27 @@ class TestMisc:
         v3 = v2.freeze({})
         assert v2.value.val == v3.value.val
 
-    def test_fixedlengthvalue(self):
+    def test_fixedlengthvalue(self, tmpdir):
         class TT(base.FixedLengthValue):
             preamble = "m"
             length = 4
 
         e = TT.expr()
         assert e.parseString("m@4")
-        with pytest.raises("invalid value length"):
+        with pytest.raises(Exception, match="Invalid value length"):
             e.parseString("m@100")
-        with pytest.raises("invalid value length"):
+        with pytest.raises(Exception, match="Invalid value length"):
             e.parseString("m@1")
 
-        with tutils.tmpdir() as t:
-            p = os.path.join(t, "path")
-            s = base.Settings(staticdir=t)
-            with open(p, "wb") as f:
-                f.write(b"a" * 20)
-            v = e.parseString("m<path")[0]
-            with pytest.raises("invalid value length"):
-                v.values(s)
+        s = base.Settings(staticdir=str(tmpdir))
+        tmpdir.join("path").write_binary(b"a" * 20, ensure=True)
+        v = e.parseString("m<path")[0]
+        with pytest.raises(Exception, match="Invalid value length"):
+            v.values(s)
 
-            p = os.path.join(t, "path")
-            with open(p, "wb") as f:
-                f.write(b"a" * 4)
-            v = e.parseString("m<path")[0]
-            assert v.values(s)
+        tmpdir.join("path2").write_binary(b"a" * 4, ensure=True)
+        v = e.parseString("m<path2")[0]
+        assert v.values(s)
 
 
 class TKeyValue(base.KeyValue):
@@ -282,7 +277,7 @@ def test_intfield():
     assert v.value == 4
     assert v.spec() == "t4"
 
-    with pytest.raises("can't exceed"):
+    with pytest.raises(Exception, match="can't exceed"):
         e.parseString("t5")
 
 
@@ -324,9 +319,9 @@ def test_integer():
     class BInt(base.Integer):
         bounds = (1, 5)
 
-    with pytest.raises("must be between"):
+    with pytest.raises(Exception, match="must be between"):
         BInt(0)
-    with pytest.raises("must be between"):
+    with pytest.raises(Exception, match="must be between"):
         BInt(6)
     assert BInt(5)
     assert BInt(1)

test/pathod/test_language_http.py

@@ -20,7 +20,7 @@ def test_make_error_response():
 class TestRequest:
 
     def test_nonascii(self):
-        with pytest.raises("ascii"):
+        with pytest.raises(Exception, match="ASCII"):
             parse_request("get:\xf0")
 
     def test_err(self):
@@ -226,7 +226,7 @@ class TestResponse:
             assert str(v)
 
     def test_nonascii(self):
-        with pytest.raises("ascii"):
+        with pytest.raises(Exception, match="ASCII"):
             language.parse_pathod("foo:b\xf0")
 
     def test_parse_header(self):
@@ -263,7 +263,7 @@ class TestResponse:
 
     def test_websockets(self):
         r = next(language.parse_pathod("ws"))
-        with pytest.raises("no websocket key"):
+        with pytest.raises(Exception, match="No websocket key"):
             r.resolve(language.Settings())
         res = r.resolve(language.Settings(websocket_key=b"foo"))
         assert res.status_code.string() == b"101"
@@ -351,5 +351,5 @@ def test_nested_response_freeze():
 
 
 def test_unique_components():
-    with pytest.raises("multiple body clauses"):
+    with pytest.raises(Exception, match="multiple body clauses"):
         language.parse_pathod("400:b@1:b@1")

test/pathod/test_language_http2.py

@@ -39,7 +39,7 @@ class TestRequest:
         assert req.values(default_settings()) == req.values(default_settings())
 
     def test_nonascii(self):
-        with pytest.raises("ascii"):
+        with pytest.raises(Exception, match="ASCII"):
             parse_request("get:\xf0")
 
     def test_err(self):
@@ -168,7 +168,7 @@ class TestResponse:
         assert res.values(default_settings()) == res.values(default_settings())
 
     def test_nonascii(self):
-        with pytest.raises("ascii"):
+        with pytest.raises(Exception, match="ASCII"):
             parse_response("200:\xf0")
 
     def test_err(self):

test/pathod/test_language_websocket.py

@@ -130,7 +130,7 @@ class TestWebsocketFrame:
         assert frm.payload == b"abc"
 
     def test_knone(self):
-        with pytest.raises("expected 4 bytes"):
+        with pytest.raises(Exception, match="Expected 4 bytes"):
             self.fr("wf:b'foo':mask:knone")
 
     def test_length(self):
@@ -138,5 +138,5 @@ class TestWebsocketFrame:
         frm = self.fr("wf:l2:b'foo'")
         assert frm.header.payload_length == 2
         assert frm.payload == b"fo"
-        with pytest.raises("expected 1024 bytes"):
+        with pytest.raises(Exception, match="Expected 1024 bytes"):
             self.fr("wf:l1024:b'foo'")

test/pathod/test_pathoc.py

@@ -173,12 +173,12 @@ class TestDaemon(PathocTestDaemon):
         to = ("foobar", 80)
         c = pathoc.Pathoc(("127.0.0.1", self.d.port), fp=None)
         c.rfile, c.wfile = io.BytesIO(), io.BytesIO()
-        with pytest.raises("connect failed"):
+        with pytest.raises(Exception, match="CONNECT failed"):
             c.http_connect(to)
         c.rfile = io.BytesIO(
             b"HTTP/1.1 500 OK\r\n"
         )
-        with pytest.raises("connect failed"):
+        with pytest.raises(Exception, match="CONNECT failed"):
             c.http_connect(to)
         c.rfile = io.BytesIO(
             b"HTTP/1.1 200 OK\r\n"
@@ -195,14 +195,14 @@ class TestDaemon(PathocTestDaemon):
         c.rfile = tutils.treader(
             b"\x05\xEE"
         )
-        with pytest.raises("SOCKS without authentication"):
+        with pytest.raises(Exception, match="SOCKS without authentication"):
             c.socks_connect(("example.com", 0xDEAD))
 
         c.rfile = tutils.treader(
             b"\x05\x00" +
             b"\x05\xEE\x00\x03\x0bexample.com\xDE\xAD"
         )
-        with pytest.raises("SOCKS server error"):
+        with pytest.raises(Exception, match="SOCKS server error"):
             c.socks_connect(("example.com", 0xDEAD))
 
         c.rfile = tutils.treader(

test/pathod/test_pathod.py

@@ -134,7 +134,7 @@ class CommonTests(tservers.DaemonTests):
         assert len(self.d.log()) == 0
 
     def test_disconnect(self):
-        with pytest.raises("unexpected eof"):
+        with pytest.raises(Exception, match="Unexpected EOF"):
             self.get("202:b@100k:d200")
 
     def test_parserr(self):