diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 2383cee..f045e42 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -26,7 +26,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest
+        pip install flake8 pytest -e .
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |
diff --git a/setup.py b/setup.py
index 25a399f..17ad84b 100644
--- a/setup.py
+++ b/setup.py
@@ -51,6 +51,10 @@
         "requests_oauthlib==2.0.0",
         "ipdb",
         "ipython",
+        "coverage",
+        "pytest",
+        "pytest-asyncio",
+        "pytz",
     ],
     classifiers=[
         "Development Status :: 3 - Alpha",
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_tweet_bot.py b/tests/test_tweet_bot.py
new file mode 100644
index 0000000..2af17f6
--- /dev/null
+++ b/tests/test_tweet_bot.py
@@ -0,0 +1,15 @@
+import time
+from pathlib import Path
+from unittest.mock import patch, MagicMock
+
+from taogod_terminal.tweet_bot import parse_args, TWEET_FREQ
+
+
+def test_parse_args():
+    with patch("argparse.ArgumentParser.parse_args", return_value=MagicMock(tweets=Path("tweets.json"))):
+        args = parse_args()
+        assert args.tweets == Path("tweets.json")
+
+def test_tweet_frequency_logic():
+    last_post_time = time.time() - TWEET_FREQ.total_seconds() - 1
+    assert time.time() - last_post_time > TWEET_FREQ.total_seconds()