diff --git a/poetry.lock b/poetry.lock
index b5612f7..62ca2c2 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -612,7 +612,7 @@ twitter = ["twython"]
 
 [[package]]
 name = "notebook"
-version = "6.1.5"
+version = "6.1.6"
 description = "A web-based notebook environment for interactive computing"
 category = "dev"
 optional = false
@@ -635,8 +635,9 @@ tornado = ">=5.0"
 traitlets = ">=4.2.1"
 
 [package.extras]
-docs = ["sphinx", "nbsphinx", "sphinxcontrib-github-alt"]
-test = ["nose", "coverage", "requests", "nose-warnings-filters", "nbval", "nose-exclude", "selenium", "pytest", "pytest-cov", "requests-unixsocket"]
+docs = ["sphinx", "nbsphinx", "sphinxcontrib-github-alt", "sphinx-rtd-theme"]
+json-logging = ["json-logging"]
+test = ["pytest", "coverage", "requests", "nbval", "selenium", "pytest-cov", "requests-unixsocket"]
 
 [[package]]
 name = "orjson"
@@ -1001,6 +1002,18 @@ brotli = ["brotlipy (>=0.6.0)"]
 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
 socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
+[[package]]
+name = "waitress"
+version = "1.4.4"
+description = "Waitress WSGI server"
+category = "dev"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+
+[package.extras]
+docs = ["Sphinx (>=1.8.1)", "docutils", "pylons-sphinx-themes (>=1.0.9)"]
+testing = ["pytest", "pytest-cover", "coverage (>=5.0)"]
+
 [[package]]
 name = "wcwidth"
 version = "0.2.5"
@@ -1029,6 +1042,24 @@ python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*"
 docs = ["Sphinx (>=1.7.5)", "pylons-sphinx-themes"]
 testing = ["pytest (>=3.1.0)", "coverage", "pytest-cov", "pytest-xdist"]
 
+[[package]]
+name = "webtest"
+version = "2.0.35"
+description = "Helper to test WSGI applications"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+beautifulsoup4 = "*"
+six = "*"
+waitress = ">=0.8.5"
+WebOb = ">=1.2"
+
+[package.extras]
+docs = ["Sphinx (>=1.8.1)", "docutils", "pylons-sphinx-themes (>=1.0.8)"]
+tests = ["nose (<1.3.0)", "coverage", "mock", "pastedeploy", "wsgiproxy2", "pyquery"]
+
 [[package]]
 name = "widgetsnbextension"
 version = "3.5.1"
@@ -1043,7 +1074,7 @@ notebook = ">=4.4.1"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "4652673e61d57bf6f9a67c42f717aa0d014e0073a274183a8d47e65e0c251ffa"
+content-hash = "6672edcfd7abe5be006c66fefed7f00b286aa8233a28c0b2f5d42b5328d7f0d8"
 
 [metadata.files]
 anki = [
@@ -1305,8 +1336,8 @@ nltk = [
     {file = "nltk-3.5.zip", hash = "sha256:845365449cd8c5f9731f7cb9f8bd6fd0767553b9d53af9eb1b3abf7700936b35"},
 ]
 notebook = [
-    {file = "notebook-6.1.5-py3-none-any.whl", hash = "sha256:508cf9dad7cdb3188f1aa27017dc78179029dfe83814fc505329f689bc2ab50f"},
-    {file = "notebook-6.1.5.tar.gz", hash = "sha256:3db37ae834c5f3b6378381229d0e5dfcbfb558d08c8ce646b1ad355147f5e91d"},
+    {file = "notebook-6.1.6-py3-none-any.whl", hash = "sha256:e6a62188e319a5d45dd2ed24719f646adf88bef8be1f654ebd0ab360ece6d7a6"},
+    {file = "notebook-6.1.6.tar.gz", hash = "sha256:cf40d4f81541401db5a2fda1707ca7877157abd41f04ef7b88f02b67f3c61791"},
 ]
 orjson = [
     {file = "orjson-3.4.6-cp36-cp36m-macosx_10_7_x86_64.whl", hash = "sha256:4e258f4696255de8038fd01ead8277a7c5c6d1e453cc7ca5aad8c1e9f74af62e"},
@@ -1645,6 +1676,10 @@ urllib3 = [
     {file = "urllib3-1.26.2-py2.py3-none-any.whl", hash = "sha256:d8ff90d979214d7b4f8ce956e80f4028fc6860e4431f731ea4a8c08f23f99473"},
     {file = "urllib3-1.26.2.tar.gz", hash = "sha256:19188f96923873c92ccb987120ec4acaa12f0461fa9ce5d3d0772bc965a39e08"},
 ]
+waitress = [
+    {file = "waitress-1.4.4-py2.py3-none-any.whl", hash = "sha256:3d633e78149eb83b60a07dfabb35579c29aac2d24bb803c18b26fb2ab1a584db"},
+    {file = "waitress-1.4.4.tar.gz", hash = "sha256:1bb436508a7487ac6cb097ae7a7fe5413aefca610550baf58f0940e51ecfb261"},
+]
 wcwidth = [
     {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
     {file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
@@ -1657,6 +1692,10 @@ webob = [
     {file = "WebOb-1.8.6-py2.py3-none-any.whl", hash = "sha256:a3c89a8e9ba0aeb17382836cdb73c516d0ecf6630ec40ec28288f3ed459ce87b"},
     {file = "WebOb-1.8.6.tar.gz", hash = "sha256:aa3a917ed752ba3e0b242234b2a373f9c4e2a75d35291dcbe977649bd21fd108"},
 ]
+webtest = [
+    {file = "WebTest-2.0.35-py2.py3-none-any.whl", hash = "sha256:44ddfe99b5eca4cf07675e7222c81dd624d22f9a26035d2b93dc8862dc1153c6"},
+    {file = "WebTest-2.0.35.tar.gz", hash = "sha256:aac168b5b2b4f200af4e35867cf316712210e3d5db81c1cbdff38722647bb087"},
+]
 widgetsnbextension = [
     {file = "widgetsnbextension-3.5.1-py2.py3-none-any.whl", hash = "sha256:bd314f8ceb488571a5ffea6cc5b9fc6cba0adaf88a9d2386b93a489751938bcd"},
     {file = "widgetsnbextension-3.5.1.tar.gz", hash = "sha256:079f87d87270bce047512400efd70238820751a11d2d8cb137a5a5bdbaf255c7"},
diff --git a/pyproject.toml b/pyproject.toml
index 418a362..47816bd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,7 @@ webob = "^1.8.6"
 mkdocs = "^1.1.2"
 jupyter = "^1.0.0"
 jupyterlab = "^2.2.2"
+webtest = "^2.0.35"
 
 [build-system]
 requires = ["poetry>=0.12"]