diff --git a/IPython/html/tests/test_nbextensions.py b/IPython/html/tests/test_nbextensions.py
index 65484a0..4c5a646 100644
--- a/IPython/html/tests/test_nbextensions.py
+++ b/IPython/html/tests/test_nbextensions.py
@@ -7,13 +7,18 @@
 import glob
 import os
 import re
+import sys
 import tarfile
 import zipfile
-from io import BytesIO
+from io import BytesIO, StringIO
 from os.path import basename, join as pjoin
 from unittest import TestCase
 
-import IPython.testing.tools as tt
+try:
+    from unittest import mock
+except ImportError:
+    import mock # py2
+
 import IPython.testing.decorators as dec
 from IPython.utils import py3compat
 from IPython.utils.tempdir import TemporaryDirectory
@@ -213,8 +218,13 @@ class TestInstallNBExtension(TestCase):
             self.assertEqual(new_mtime, old_mtime)
 
     def test_quiet(self):
-        with tt.AssertNotPrints(re.compile(r'.+')):
+        stdout = StringIO()
+        stderr = StringIO()
+        with mock.patch.object(sys, 'stdout', stdout), \
+             mock.patch.object(sys, 'stderr', stderr):
             install_nbextension(self.src, verbose=0)
+        self.assertEqual(stdout.getvalue(), '')
+        self.assertEqual(stderr.getvalue(), '')
     
     def test_install_zip(self):
         path = pjoin(self.src, "myjsext.zip")
diff --git a/IPython/html/tests/test_notebookapp.py b/IPython/html/tests/test_notebookapp.py
index 088a647..8546589 100644
--- a/IPython/html/tests/test_notebookapp.py
+++ b/IPython/html/tests/test_notebookapp.py
@@ -1,15 +1,5 @@
 """Test NotebookApp"""
 
-#-----------------------------------------------------------------------------
-#  Copyright (C) 2013 The IPython Development Team
-#
-#  Distributed under the terms of the BSD License.  The full license is in
-#  the file COPYING, distributed as part of this software.
-#-----------------------------------------------------------------------------
-
-#-----------------------------------------------------------------------------
-# Imports
-#-----------------------------------------------------------------------------
 
 import logging
 import os
@@ -17,19 +7,17 @@ from tempfile import NamedTemporaryFile
 
 import nose.tools as nt
 
+from traitlets.tests.utils import check_help_all_output
+
 from IPython.utils.tempdir import TemporaryDirectory
 from IPython.utils.traitlets import TraitError
-import IPython.testing.tools as tt
 from IPython.html import notebookapp
 NotebookApp = notebookapp.NotebookApp
 
-#-----------------------------------------------------------------------------
-# Test functions
-#-----------------------------------------------------------------------------
 
 def test_help_output():
     """ipython notebook --help-all works"""
-    tt.help_all_output_test('notebook')
+    check_help_all_output('IPython.html')
 
 def test_server_info_file():
     nbapp = NotebookApp(profile='nbserver_file_test', log=logging.getLogger())
diff --git a/IPython/html/tests/test_utils.py b/IPython/html/tests/test_utils.py
index 0eb6166..eba3f75 100644
--- a/IPython/html/tests/test_utils.py
+++ b/IPython/html/tests/test_utils.py
@@ -1,31 +1,21 @@
 """Test HTML utils"""
 
-#-----------------------------------------------------------------------------
-#  Copyright (C) 2013 The IPython Development Team
-#
-#  Distributed under the terms of the BSD License.  The full license is in
-#  the file COPYING, distributed as part of this software.
-#-----------------------------------------------------------------------------
-
-#-----------------------------------------------------------------------------
-# Imports
-#-----------------------------------------------------------------------------
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
 
 import os
 
 import nose.tools as nt
 
-import IPython.testing.tools as tt
+from traitlets.tests.utils import check_help_all_output
 from IPython.html.utils import url_escape, url_unescape, is_hidden
 from IPython.utils.tempdir import TemporaryDirectory
 
-#-----------------------------------------------------------------------------
-# Test functions
-#-----------------------------------------------------------------------------
 
 def test_help_output():
-    """ipython notebook --help-all works"""
-    tt.help_all_output_test('notebook')
+    """jupyter notebook --help-all works"""
+    # FIXME: will be jupyter_notebook
+    check_help_all_output('IPython.html')
 
 
 def test_url_escape():
diff --git a/IPython/testing/tools.py b/IPython/testing/tools.py
index 84f200a..467d707 100644
--- a/IPython/testing/tools.py
+++ b/IPython/testing/tools.py
@@ -465,23 +465,3 @@ def help_all_output_test(subcommand=''):
     nt.assert_in("Class parameters", out)
     return out, err
 
-def assert_big_text_equal(a, b, chunk_size=80):
-    """assert that large strings are equal
-
-    Zooms in on first chunk that differs,
-    to give better info than vanilla assertEqual for large text blobs.
-    """
-    for i in range(0, len(a), chunk_size):
-        chunk_a = a[i:i + chunk_size]
-        chunk_b = b[i:i + chunk_size]
-        nt.assert_equal(chunk_a, chunk_b, "[offset: %i]\n%r != \n%r" % (
-            i, chunk_a, chunk_b))
-
-    if len(a) > len(b):
-        nt.fail("Length doesn't match (%i > %i). Extra text:\n%r" % (
-            len(a), len(b), a[len(b):]
-        ))
-    elif len(a) < len(b):
-        nt.fail("Length doesn't match (%i < %i). Extra text:\n%r" % (
-            len(a), len(b), b[len(a):]
-        ))
diff --git a/jupyter_console/tests/test_console.py b/jupyter_console/tests/test_console.py
index d406039..e7bc884 100644
--- a/jupyter_console/tests/test_console.py
+++ b/jupyter_console/tests/test_console.py
@@ -1,28 +1,15 @@
-"""Tests for two-process terminal frontend
+"""Tests for two-process terminal frontend"""
 
-Currently only has the most simple test possible, starting a console and running
-a single command.
-
-Authors:
-
-* Min RK
-"""
-
-#-----------------------------------------------------------------------------
-# Imports
-#-----------------------------------------------------------------------------
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
 
 import sys
 
 from nose import SkipTest
 
-import IPython.testing.tools as tt
+from traitlets.tests.utils import check_help_all_output
 from IPython.testing import decorators as dec
 
-#-----------------------------------------------------------------------------
-# Tests
-#-----------------------------------------------------------------------------
-
 @dec.skip_win32
 def test_console_starts():
     """test that `ipython console` starts a terminal"""
@@ -34,8 +21,7 @@ def test_console_starts():
 
 def test_help_output():
     """ipython console --help-all works"""
-    tt.help_all_output_test('console')
-
+    check_help_all_output('jupyter_console')
 
 def test_display_text():
     "Ensure display protocol plain/text key is supported"
diff --git a/jupyter_console/tests/test_image_handler.py b/jupyter_console/tests/test_image_handler.py
index f91de61..26c92e5 100644
--- a/jupyter_console/tests/test_image_handler.py
+++ b/jupyter_console/tests/test_image_handler.py
@@ -14,7 +14,6 @@ except ImportError:
 from IPython.kernel import KernelClient
 from IPython.terminal.console.interactiveshell import ZMQTerminalInteractiveShell
 from IPython.utils.tempdir import TemporaryDirectory
-from IPython.testing.tools import monkeypatch
 from IPython.testing.decorators import skip_without
 from IPython.utils.ipstruct import Struct
 
diff --git a/jupyter_nbconvert/__main__.py b/jupyter_nbconvert/__main__.py
new file mode 100644
index 0000000..8f0dd72
--- /dev/null
+++ b/jupyter_nbconvert/__main__.py
@@ -0,0 +1,2 @@
+from .nbconvertapp import launch_new_instance
+launch_new_instance()
diff --git a/jupyter_nbconvert/exporters/tests/test_notebook.py b/jupyter_nbconvert/exporters/tests/test_notebook.py
index a0b4560..68a966b 100644
--- a/jupyter_nbconvert/exporters/tests/test_notebook.py
+++ b/jupyter_nbconvert/exporters/tests/test_notebook.py
@@ -9,7 +9,7 @@ from .base import ExportersTestsBase
 from ..notebook import NotebookExporter
 
 from IPython.nbformat import validate
-from IPython.testing.tools import assert_big_text_equal
+from jupyter_nbconvert.tests.base import assert_big_text_equal
 
 class TestNotebookExporter(ExportersTestsBase):
     """Contains test functions for notebook.py"""
diff --git a/jupyter_nbconvert/tests/base.py b/jupyter_nbconvert/tests/base.py
index 0e1b5ef..c3a95dc 100644
--- a/jupyter_nbconvert/tests/base.py
+++ b/jupyter_nbconvert/tests/base.py
@@ -6,17 +6,17 @@
 import io
 import os
 import glob
+import shlex
 import shutil
+import sys
 import unittest
 
+import nose.tools as nt
+
 from IPython.nbformat import v4, write
 from IPython.utils.tempdir import TemporaryWorkingDirectory
 from IPython.utils.process import get_output_error_code
-from IPython.testing.tools import get_ipython_cmd
-
-# a trailing space allows for simpler concatenation with the other arguments
-ipy_cmd = get_ipython_cmd(as_string=True) + " "
-
+from IPython.utils.py3compat import string_types
 
 class TestsBase(unittest.TestCase):
     """Base tests class.  Contains useful fuzzy comparison and nbconvert
@@ -126,20 +126,43 @@ class TestsBase(unittest.TestCase):
         return os.path.join(path, *names)
 
 
-    def call(self, parameters, ignore_return_code=False):
+    def nbconvert(self, parameters, ignore_return_code=False):
         """
-        Execute a, IPython shell command, listening for both Errors and non-zero
+        Run nbconvert a, IPython shell command, listening for both Errors and non-zero
         return codes.
 
         Parameters
         ----------
-        parameters : str
+        parameters : str, list(str)
             List of parameters to pass to IPython.
         ignore_return_code : optional bool (default False)
             Throw an OSError if the return code 
         """
-
-        stdout, stderr, retcode = get_output_error_code(ipy_cmd + parameters)
+        if isinstance(parameters, string_types):
+            parameters = shlex.split(parameters)
+        cmd = [sys.executable, '-m', 'jupyter_nbconvert'] + parameters
+        stdout, stderr, retcode = get_output_error_code(cmd)
         if not (retcode == 0 or ignore_return_code):
             raise OSError(stderr)
         return stdout, stderr
+    
+def assert_big_text_equal(a, b, chunk_size=80):
+    """assert that large strings are equal
+
+    Zooms in on first chunk that differs,
+    to give better info than vanilla assertEqual for large text blobs.
+    """
+    for i in range(0, len(a), chunk_size):
+        chunk_a = a[i:i + chunk_size]
+        chunk_b = b[i:i + chunk_size]
+        nt.assert_equal(chunk_a, chunk_b, "[offset: %i]\n%r != \n%r" % (
+            i, chunk_a, chunk_b))
+
+    if len(a) > len(b):
+        nt.fail("Length doesn't match (%i > %i). Extra text:\n%r" % (
+            len(a), len(b), a[len(b):]
+        ))
+    elif len(a) < len(b):
+        nt.fail("Length doesn't match (%i < %i). Extra text:\n%r" % (
+            len(a), len(b), b[len(a):]
+        ))
diff --git a/jupyter_nbconvert/tests/test_nbconvertapp.py b/jupyter_nbconvert/tests/test_nbconvertapp.py
index 61b1ad0..e81aef5 100644
--- a/jupyter_nbconvert/tests/test_nbconvertapp.py
+++ b/jupyter_nbconvert/tests/test_nbconvertapp.py
@@ -11,7 +11,7 @@ import sys
 from .base import TestsBase
 from ..postprocessors import PostProcessorBase
 
-import IPython.testing.tools as tt
+from traitlets.tests.utils import check_help_all_output
 from IPython.testing import decorators as dec
 
 #-----------------------------------------------------------------------------
@@ -29,19 +29,19 @@ class TestNbConvertApp(TestsBase):
     def test_notebook_help(self):
         """Will help show if no notebooks are specified?"""
         with self.create_temp_cwd():
-            out, err = self.call('nbconvert --log-level 0', ignore_return_code=True)
+            out, err = self.nbconvert('--log-level 0', ignore_return_code=True)
             self.assertIn("see '--help-all'", out)
     
     def test_help_output(self):
         """ipython nbconvert --help-all works"""
-        tt.help_all_output_test('nbconvert')
+        check_help_all_output('jupyter_nbconvert')
 
     def test_glob(self):
         """
         Do search patterns work for notebook names?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
-            self.call('nbconvert --to python *.ipynb --log-level 0')
+            self.nbconvert('--to python *.ipynb --log-level 0')
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
@@ -52,7 +52,7 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd():
             self.copy_files_to(['notebook*.ipynb'], 'subdir/')
-            self.call('nbconvert --to python --log-level 0 ' + 
+            self.nbconvert('--to python --log-level 0 ' + 
                       os.path.join('subdir', '*.ipynb'))
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
@@ -63,7 +63,7 @@ class TestNbConvertApp(TestsBase):
         Do explicit notebook names work?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
-            self.call('nbconvert --log-level 0 --to python notebook2')
+            self.nbconvert('--log-level 0 --to python notebook2')
             assert not os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
@@ -76,7 +76,7 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd(['notebook2.ipynb']):
             os.rename('notebook2.ipynb', 'notebook with spaces.ipynb')
-            self.call('nbconvert --log-level 0 --to pdf'
+            self.nbconvert('--log-level 0 --to pdf'
                     ' "notebook with spaces"'
                     ' --PDFExporter.latex_count=1'
                     ' --PDFExporter.verbose=True'
@@ -86,7 +86,7 @@ class TestNbConvertApp(TestsBase):
     def test_post_processor(self):
         """Do post processors work?"""
         with self.create_temp_cwd(['notebook1.ipynb']):
-            out, err = self.call('nbconvert --log-level 0 --to python notebook1 '
+            out, err = self.nbconvert('--log-level 0 --to python notebook1 '
                       '--post jupyter_nbconvert.tests.test_nbconvertapp.DummyPost')
             self.assertIn('Dummy:notebook1.py', out)
 
@@ -94,11 +94,11 @@ class TestNbConvertApp(TestsBase):
     def test_spurious_cr(self):
         """Check for extra CR characters"""
         with self.create_temp_cwd(['notebook2.ipynb']):
-            self.call('nbconvert --log-level 0 --to latex notebook2')
+            self.nbconvert('--log-level 0 --to latex notebook2')
             assert os.path.isfile('notebook2.tex')
             with open('notebook2.tex') as f:
                 tex = f.read()
-            self.call('nbconvert --log-level 0 --to html notebook2')
+            self.nbconvert('--log-level 0 --to html notebook2')
             assert os.path.isfile('notebook2.html')
             with open('notebook2.html') as f:
                 html = f.read()
@@ -109,7 +109,7 @@ class TestNbConvertApp(TestsBase):
     def test_png_base64_html_ok(self):
         """Is embedded png data well formed in HTML?"""
         with self.create_temp_cwd(['notebook2.ipynb']):
-            self.call('nbconvert --log-level 0 --to HTML '
+            self.nbconvert('--log-level 0 --to HTML '
                       'notebook2.ipynb --template full')
             assert os.path.isfile('notebook2.html')
             with open('notebook2.html') as f:
@@ -121,7 +121,7 @@ class TestNbConvertApp(TestsBase):
         Do export templates work?
         """
         with self.create_temp_cwd(['notebook2.ipynb']):
-            self.call('nbconvert --log-level 0 --to slides '  
+            self.nbconvert('--log-level 0 --to slides '  
                       'notebook2.ipynb')
             assert os.path.isfile('notebook2.slides.html')
             with open('notebook2.slides.html') as f:
@@ -130,11 +130,11 @@ class TestNbConvertApp(TestsBase):
     def test_output_ext(self):
         """test --output=outputfile[.ext]"""
         with self.create_temp_cwd(['notebook1.ipynb']):
-            self.call('nbconvert --log-level 0 --to python '
+            self.nbconvert('--log-level 0 --to python '
                       'notebook1.ipynb --output nb.py')
             assert os.path.exists('nb.py')
 
-            self.call('nbconvert --log-level 0 --to python '
+            self.nbconvert('--log-level 0 --to python '
                       'notebook1.ipynb --output nb2')
             assert os.path.exists('nb2.py')
 
@@ -143,7 +143,7 @@ class TestNbConvertApp(TestsBase):
         Can a search pattern be used along with matching explicit notebook names?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
-            self.call('nbconvert --log-level 0 --to python '
+            self.nbconvert('--log-level 0 --to python '
                       '*.ipynb notebook1.ipynb notebook2.ipynb')
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
@@ -154,7 +154,7 @@ class TestNbConvertApp(TestsBase):
         Can explicit notebook names be used and then a matching search pattern?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
-            self.call('nbconvert --log-level 0 --to=python '
+            self.nbconvert('--log-level 0 --to=python '
                       'notebook1.ipynb notebook2.ipynb *.ipynb')
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
@@ -165,7 +165,7 @@ class TestNbConvertApp(TestsBase):
         Does the default config work?
         """
         with self.create_temp_cwd(['notebook*.ipynb', 'ipython_nbconvert_config.py']):
-            self.call('nbconvert --log-level 0')
+            self.nbconvert('--log-level 0')
             assert os.path.isfile('notebook1.py')
             assert not os.path.isfile('notebook2.py')
 
@@ -177,7 +177,7 @@ class TestNbConvertApp(TestsBase):
         with self.create_temp_cwd(['notebook*.ipynb',
                                    'ipython_nbconvert_config.py',
                                    'override.py']):
-            self.call('nbconvert --log-level 0 --config="override.py"')
+            self.nbconvert('--log-level 0 --config="override.py"')
             assert not os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
@@ -187,7 +187,7 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd():
             self.create_empty_notebook(u'nb1_análisis.ipynb')
-            self.call('nbconvert --log-level 0 --to python nb1_*')
+            self.nbconvert('--log-level 0 --to python nb1_*')
             assert os.path.isfile(u'nb1_análisis.py')
     
     @dec.onlyif_cmds_exist('pdflatex', 'pandoc')
@@ -197,7 +197,7 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd():
             self.create_empty_notebook(u'nb1_análisis.ipynb')
-            self.call('nbconvert --log-level 0 --to pdf "nb1_*"'
+            self.nbconvert('--log-level 0 --to pdf "nb1_*"'
                     ' --PDFExporter.latex_count=1'
                     ' --PDFExporter.verbose=True')
             assert os.path.isfile(u'nb1_análisis.pdf')
@@ -208,7 +208,7 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd(['hello.py']):
             self.create_empty_notebook(u'empty.ipynb')
-            self.call('nbconvert empty --to html --NbConvertApp.writer_class=\'hello.HelloWriter\'')
+            self.nbconvert('empty --to html --NbConvertApp.writer_class=\'hello.HelloWriter\'')
             assert os.path.isfile(u'hello.txt')
 
     def test_output_suffix(self):
@@ -217,7 +217,7 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd():
             self.create_empty_notebook('empty.ipynb')
-            self.call('nbconvert empty.ipynb --to notebook')
+            self.nbconvert('empty.ipynb --to notebook')
             assert os.path.isfile('empty.nbconvert.ipynb')
 
     def test_different_build_dir(self):
@@ -227,8 +227,8 @@ class TestNbConvertApp(TestsBase):
         with self.create_temp_cwd():
             self.create_empty_notebook('empty.ipynb')
             os.mkdir('output')
-            self.call(
-                'nbconvert empty.ipynb --to notebook '
+            self.nbconvert(
+                'empty.ipynb --to notebook '
                 '--FilesWriter.build_directory=output')
             assert os.path.isfile('output/empty.ipynb')
 
@@ -238,6 +238,6 @@ class TestNbConvertApp(TestsBase):
         """
         with self.create_temp_cwd():
             self.create_empty_notebook('empty.ipynb')
-            self.call('nbconvert empty.ipynb --to notebook --inplace')
+            self.nbconvert('empty.ipynb --to notebook --inplace')
             assert os.path.isfile('empty.ipynb')
             assert not os.path.isfile('empty.nbconvert.ipynb')
diff --git a/jupyter_qtconsole/console/tests/test_app.py b/jupyter_qtconsole/console/tests/test_app.py
index 9c7c2b3..2168f6b 100644
--- a/jupyter_qtconsole/console/tests/test_app.py
+++ b/jupyter_qtconsole/console/tests/test_app.py
@@ -1,27 +1,15 @@
 """Test QtConsoleApp"""
 
-#-----------------------------------------------------------------------------
-#  Copyright (C) 2013 The IPython Development Team
-#
-#  Distributed under the terms of the BSD License.  The full license is in
-#  the file COPYING, distributed as part of this software.
-#-----------------------------------------------------------------------------
-
-#-----------------------------------------------------------------------------
-# Imports
-#-----------------------------------------------------------------------------
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
 
 import nose.tools as nt
 
-import IPython.testing.tools as tt
+from traitlets.tests.utils import check_help_all_output
 from IPython.testing.decorators import skip_if_no_x11
 
-#-----------------------------------------------------------------------------
-# Test functions
-#-----------------------------------------------------------------------------
-
 @skip_if_no_x11
 def test_help_output():
-    """ipython qtconsole --help-all works"""
-    tt.help_all_output_test('qtconsole')
+    """jupyter qtconsole --help-all works"""
+    check_help_all_output('jupyter_qtconsole')
 
diff --git a/traitlets/tests/utils.py b/traitlets/tests/utils.py
new file mode 100644
index 0000000..34bc062
--- /dev/null
+++ b/traitlets/tests/utils.py
@@ -0,0 +1,40 @@
+import sys
+import nose.tools as nt
+
+from subprocess import Popen, PIPE
+
+def get_output_error_code(cmd):
+    """Get stdout, stderr, and exit code from running a command"""
+    p = Popen(cmd, stdout=PIPE, stderr=PIPE)
+    out, err = p.communicate()
+    out = out.decode('utf8', 'replace')
+    err = err.decode('utf8', 'replace')
+    return out, err, p.returncode
+
+
+def check_help_output(pkg, subcommand=None):
+    """test that `python -m PKG [subcommand] -h` works"""
+    cmd = [sys.executable, '-m', pkg]
+    if subcommand:
+        cmd.extend(subcommand)
+    cmd.append('-h')
+    out, err, rc = get_output_error_code(cmd)
+    nt.assert_equal(rc, 0, err)
+    nt.assert_not_in("Traceback", err)
+    nt.assert_in("Options", out)
+    nt.assert_in("--help-all", out)
+    return out, err
+
+
+def check_help_all_output(pkg, subcommand=None):
+    """test that `python -m PKG --help-all` works"""
+    cmd = [sys.executable, '-m', pkg]
+    if subcommand:
+        cmd.extend(subcommand)
+    cmd.append('--help-all')
+    out, err, rc = get_output_error_code(cmd)
+    nt.assert_equal(rc, 0, err)
+    nt.assert_not_in("Traceback", err)
+    nt.assert_in("Options", out)
+    nt.assert_in("Class parameters", out)
+    return out, err