fix tests, use pytest

We currently test with unparallelized builds,
because there are apparently some race conditions
in the test suite, which I can't trigger locally
but happen on travis.

Squashed commit of the following:

commit 7dceb6dd3a1bdbc39688258bc4dff6eee685a33b
Author: Maximilian Hils <git@maximilianhils.com>
Date:   Mon Sep 21 23:00:24 2015 +0200

    disable parallelized tests

commit fc0c3f12ee9259162e83026851362925d93b69f2
Author: Maximilian Hils <git@maximilianhils.com>
Date:   Mon Sep 21 22:49:19 2015 +0200

    fix tests

commit baba3ca5ef49bdbd7aad14f1bf0626738fa3d21c
Author: Maximilian Hils <git@maximilianhils.com>
Date:   Mon Sep 21 22:28:20 2015 +0200

    fix tests, use py.test

13 files changed, 50 insertions, 101 deletions

diff --git a/.appveyor.yml b/.appveyor.yml
index 4e690c06..dbb6d2fa 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -8,4 +8,4 @@ install:
   - "%PYTHON%\\python -c \"from OpenSSL import SSL; print(SSL.SSLeay_version(SSL.SSLEAY_VERSION))\""
 build: off  # Not a C# project
 test_script:
-  - "%PYTHON%\\Scripts\\nosetests"
\ No newline at end of file
+  - "%PYTHON%\\Scripts\\py.test -n 4"
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 4c8c70a2..7eeeb614 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ netlib
 venv
 .idea/
 pathod.egg-info/
+.cache/
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index cdc57851..832c2501 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,7 @@ before_script:
   - "openssl version -a"
 
 script:
-  - "nosetests --with-cov --cov-report term-missing"
+  - "py.test --cov pathod -v"
 
 after_success:
   - coveralls
@@ -51,7 +51,7 @@ notifications:
     on_failure: always
   slack:
     rooms:
-        - mitmproxy:YaDGC9Gt9TEM7o8zkC2OLNsu
+      - mitmproxy:YaDGC9Gt9TEM7o8zkC2OLNsu
     on_success: change
     on_failure: always
 
diff --git a/examples/test_context.py b/examples/test_context.py
index 1f0a7f8b..7c0386c1 100644
--- a/examples/test_context.py
+++ b/examples/test_context.py
@@ -16,7 +16,7 @@ def test_simple():
 
         # Check the returned data
         assert r.status_code == 200
-        assert len(r.body) == 100
+        assert len(r.content) == 100
 
         # Check pathod's internal log
         log = d.last_log()["request"]
diff --git a/examples/test_setup.py b/examples/test_setup.py
index c6e52d00..6085c98a 100644
--- a/examples/test_setup.py
+++ b/examples/test_setup.py
@@ -10,10 +10,10 @@ class Test:
         each test.
     """
 
-    def setUp(self):
+    def setup(self):
         self.d = test.Daemon()
 
-    def tearDown(self):
+    def teardown(self):
         self.d.shutdown()
 
     def test_simple(self):
@@ -24,7 +24,7 @@ class Test:
 
         # Check the returned data
         assert r.status_code == 200
-        assert len(r.body) == 100
+        assert len(r.content) == 100
 
         # Check pathod's internal log
         log = self.d.last_log()["request"]
diff --git a/examples/test_setupall.py b/examples/test_setupall.py
index ddf4d905..f0ba5844 100644
--- a/examples/test_setupall.py
+++ b/examples/test_setupall.py
@@ -10,14 +10,14 @@ class Test:
         for the test suite.
     """
     @classmethod
-    def setUpAll(cls):
+    def setup_class(cls):
         cls.d = test.Daemon()
 
     @classmethod
-    def tearDownAll(cls):
+    def teardown_class(cls):
         cls.d.shutdown()
 
-    def setUp(self):
+    def setup(self):
         # Clear the pathod logs between tests
         self.d.clear_log()
 
@@ -29,7 +29,7 @@ class Test:
 
         # Check the returned data
         assert r.status_code == 200
-        assert len(r.body) == 100
+        assert len(r.content) == 100
 
         # Check pathod's internal log
         log = self.d.last_log()["request"]
diff --git a/libpathod/language/websockets.py b/libpathod/language/websockets.py
index 2c0231e6..ea7c870e 100644
--- a/libpathod/language/websockets.py
+++ b/libpathod/language/websockets.py
@@ -212,7 +212,7 @@ class WebsocketFrame(message.Message):
             if v is not None:
                 frameparts[i] = v.value
         frame = netlib.websockets.FrameHeader(**frameparts)
-        vals = [frame.to_bytes()]
+        vals = [bytes(frame)]
         if bodygen:
             if frame.masking_key and not self.rawbody:
                 masker = netlib.websockets.Masker(frame.masking_key)
diff --git a/setup.py b/setup.py
index 041b164d..7acb23b5 100644
--- a/setup.py
+++ b/setup.py
@@ -56,8 +56,9 @@ setup(
     extras_require={
         'dev': [
             "mock>=1.0.1",
-            "nose>=1.3.0",
-            "nose-cov>=1.6",
+            "pytest>=2.8.0",
+            "pytest-xdist>=1.13.1",
+            "pytest-cov>=2.1.0",
             "coveralls>=0.4.1"
         ]
     }
diff --git a/test/test_language_base.py b/test/test_language_base.py
index 7a9d2a54..b18ee5b2 100644
--- a/test/test_language_base.py
+++ b/test/test_language_base.py
@@ -2,7 +2,6 @@ import os
 from libpathod import language
 from libpathod.language import base, exceptions
 import tutils
-import nose.tools as nt
 
 
 def parse_request(s):
@@ -63,8 +62,8 @@ class TestTokValueLiteral:
         e = base.TokValueLiteral.expr()
         v = base.TokValueLiteral(spec)
         v2 = e.parseString(v.spec())
-        nt.assert_equal(v.val, v2[0].val)
-        nt.assert_equal(v.spec(), v2[0].spec())
+        assert v.val == v2[0].val
+        assert v.spec() == v2[0].spec()
 
     def test_roundtrip(self):
         self.roundtrip("'")
diff --git a/test/test_language_websocket.py b/test/test_language_websocket.py
index 8878f355..d98fd33e 100644
--- a/test/test_language_websocket.py
+++ b/test/test_language_websocket.py
@@ -131,11 +131,8 @@ class TestWebsocketFrame:
         assert frm.payload == "abc"
 
     def test_knone(self):
-        tutils.raises(
-            "expected 4 bytes",
-            self.fr,
-            "wf:b'foo':mask:knone",
-        )
+        with tutils.raises("expected 4 bytes"):
+            self.fr("wf:b'foo':mask:knone")
 
     def test_length(self):
         assert self.fr("wf:l3:b'foo'").header.payload_length == 3
diff --git a/test/test_pathoc.py b/test/test_pathoc.py
index 6c0bf039..72af8b13 100644
--- a/test/test_pathoc.py
+++ b/test/test_pathoc.py
@@ -22,10 +22,10 @@ class _TestDaemon:
     ssloptions = pathod.SSLOptions()
 
     @classmethod
-    def setUpAll(self):
-        self.d = test.Daemon(
-            ssl=self.ssl,
-            ssloptions=self.ssloptions,
+    def setup_class(cls):
+        cls.d = test.Daemon(
+            ssl=cls.ssl,
+            ssloptions=cls.ssloptions,
             staticdir=tutils.test_data.path("data"),
             anchors=[
                 (re.compile("/anchor/.*"), "202")
@@ -33,8 +33,8 @@ class _TestDaemon:
         )
 
     @classmethod
-    def tearDownAll(self):
-        self.d.shutdown()
+    def teardown_class(cls):
+        cls.d.shutdown()
 
     def setUp(self):
         self.d.clear_log()
diff --git a/test/test_pathoc_cmdline.py b/test/test_pathoc_cmdline.py
index 6c070aed..74dfef57 100644
--- a/test/test_pathoc_cmdline.py
+++ b/test/test_pathoc_cmdline.py
@@ -8,9 +8,8 @@ import mock
 def test_pathoc(perror):
     assert cmdline.args_pathoc(["pathoc", "foo.com", "get:/"])
     s = cStringIO.StringIO()
-    tutils.raises(
-        SystemExit, cmdline.args_pathoc, [
-            "pathoc", "--show-uas"], s, s)
+    with tutils.raises(SystemExit):
+        cmdline.args_pathoc(["pathoc", "--show-uas"], s, s)
 
     a = cmdline.args_pathoc(["pathoc", "foo.com:8888", "get:/"])
     assert a.port == 8888
@@ -56,9 +55,5 @@ def test_pathoc(perror):
     )
     assert len(list(a.requests)) == 1
 
-    tutils.raises(
-        SystemExit,
-        cmdline.args_pathoc,
-        ["pathoc", "foo.com", "invalid"],
-        s, s
-    )
+    with tutils.raises(SystemExit):
+        cmdline.args_pathoc(["pathoc", "foo.com", "invalid"], s, s)
diff --git a/test/tutils.py b/test/tutils.py
index a728e852..ceef1c15 100644
--- a/test/tutils.py
+++ b/test/tutils.py
@@ -4,6 +4,8 @@ import re
 import shutil
 import cStringIO
 from contextlib import contextmanager
+
+import netlib
 from libpathod import utils, test, pathoc, pathod, language
 from netlib import tcp
 import requests
@@ -27,36 +29,36 @@ class DaemonTests(object):
     nocraft = False
 
     @classmethod
-    def setUpAll(klass):
-        opts = klass.ssloptions or {}
-        klass.confdir = tempfile.mkdtemp()
-        opts["confdir"] = klass.confdir
+    def setup_class(cls):
+        opts = cls.ssloptions or {}
+        cls.confdir = tempfile.mkdtemp()
+        opts["confdir"] = cls.confdir
         so = pathod.SSLOptions(**opts)
-        klass.d = test.Daemon(
+        cls.d = test.Daemon(
             staticdir=test_data.path("data"),
             anchors=[
                 (re.compile("/anchor/.*"), "202:da")
             ],
-            ssl=klass.ssl,
+            ssl=cls.ssl,
             ssloptions=so,
             sizelimit=1 * 1024 * 1024,
-            noweb=klass.noweb,
-            noapi=klass.noapi,
-            nohang=klass.nohang,
-            timeout=klass.timeout,
-            hexdump=klass.hexdump,
-            nocraft=klass.nocraft,
+            noweb=cls.noweb,
+            noapi=cls.noapi,
+            nohang=cls.nohang,
+            timeout=cls.timeout,
+            hexdump=cls.hexdump,
+            nocraft=cls.nocraft,
             logreq=True,
             logresp=True,
             explain=True
         )
 
     @classmethod
-    def tearDownAll(self):
-        self.d.shutdown()
-        shutil.rmtree(self.confdir)
+    def teardown_class(cls):
+        cls.d.shutdown()
+        shutil.rmtree(cls.confdir)
 
-    def setUp(self):
+    def teardown(self):
         if not (self.noweb or self.noapi):
             self.d.clear_log()
 
@@ -114,55 +116,9 @@ class DaemonTests(object):
         return ret, logfp.getvalue()
 
 
-@contextmanager
-def tmpdir(*args, **kwargs):
-    orig_workdir = os.getcwd()
-    temp_workdir = tempfile.mkdtemp(*args, **kwargs)
-    os.chdir(temp_workdir)
-
-    yield temp_workdir
-
-    os.chdir(orig_workdir)
-    shutil.rmtree(temp_workdir)
-
-
-def raises(exc, obj, *args, **kwargs):
-    """
-        Assert that a callable raises a specified exception.
-
-        :exc An exception class or a string. If a class, assert that an
-        exception of this type is raised. If a string, assert that the string
-        occurs in the string representation of the exception, based on a
-        case-insenstivie match.
-
-        :obj A callable object.
+tmpdir = netlib.tutils.tmpdir
 
-        :args Arguments to be passsed to the callable.
-
-        :kwargs Arguments to be passed to the callable.
-    """
-    try:
-        obj(*args, **kwargs)
-    except (Exception, SystemExit) as v:
-        if isinstance(exc, basestring):
-            if exc.lower() in str(v).lower():
-                return
-            else:
-                raise AssertionError(
-                    "Expected %s, but caught %s" % (
-                        repr(str(exc)), v
-                    )
-                )
-        else:
-            if isinstance(v, exc):
-                return
-            else:
-                raise AssertionError(
-                    "Expected %s, but caught %s %s" % (
-                        exc.__name__, v.__class__.__name__, str(v)
-                    )
-                )
-    raise AssertionError("No exception raised.")
+raises = netlib.tutils.raises
 
 test_data = utils.Data(__name__)