diff --git a/.gitignore b/.gitignore
index 996b759..02b635b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -58,3 +58,4 @@ history.txt
 .venv
 fake.py
 .vscode
+*~
diff --git a/.travis.yml b/.travis.yml
index d6c4ff0..5ab9f0b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,6 @@
 language: python
 python:
 - 2.7
-- 3.2
-- 3.3
 - 3.4
 - 3.5
 - 3.6
@@ -14,6 +12,7 @@ install:
 script:
 - echo -e 'x=0\nfor i in range(0, 10000000):\n    x+=i\nprint(x)' > fake.py
 - howlong -i 1 -c python fake.py
+- pytest
 
 after_success:
 - bash <(curl -s https://codecov.io/bash)
diff --git a/HowLong/test_parser.py b/HowLong/test_parser.py
index aaac078..677a175 100644
--- a/HowLong/test_parser.py
+++ b/HowLong/test_parser.py
@@ -1,6 +1,7 @@
-import unittest
-from HowLong import HowLong
+from __future__ import absolute_import
 
+import unittest
+from HowLong.HowLong import HowLong
 
 class TestParser(unittest.TestCase):
 
@@ -13,7 +14,7 @@ def test_empty_arguments(self):
         '''Tests with no arguments
             At least one argument is required.
         '''
-        with self.assertRaises(AssertionError):
+        with self.assertRaises(SystemExit):
             self.parser()
 
     def test_c_option_with_empty_arguments(self):
@@ -29,7 +30,3 @@ def test_p_option_with_empty_arguments(self):
         '''
         with self.assertRaises(TypeError):
             self.parser('-p')
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/HowLong/test_process.py b/HowLong/test_process.py
new file mode 100644
index 0000000..1ca606b
--- /dev/null
+++ b/HowLong/test_process.py
@@ -0,0 +1,29 @@
+from __future__ import absolute_import
+
+import os
+import sys
+import unittest
+
+
+from HowLong.HowLong import Process
+
+class TestProcess(unittest.TestCase):
+    def test_command(self):
+        p = Process(command=["true"])
+        assert p.command == "true"
+        assert p.start_time
+
+    def test_pid(self):
+        p = Process(os.getpid())
+        # Specific command could be dependent on host running test,
+        # settle for making sure it was filled in at all.
+        assert p.command
+        assert p.start_time
+
+    def test_is_running_pid(self):
+        p = Process(os.getpid())
+        assert p.is_running()
+
+    def test_is_running_cmd(self):
+        p = Process(command=["true"])
+        assert p.is_running()
diff --git a/HowLong/test_utils.py b/HowLong/test_utils.py
new file mode 100644
index 0000000..a23bca2
--- /dev/null
+++ b/HowLong/test_utils.py
@@ -0,0 +1,28 @@
+from __future__ import absolute_import
+
+import unittest
+import sys
+
+from HowLong import HowLong
+
+def test_red():
+    ret = HowLong.red("asdf")
+    assert ret == '\033[91masdf\033[0m'
+
+
+# While it would be good to also test the printed output,
+# dealing with print statement versus print function
+# being different across python2 and python3 makes that
+# really hard.
+class TestErrorAndExit(unittest.TestCase):
+    def test_no_args(self):
+        with self.assertRaises(SystemExit):
+            HowLong.error_and_exit()
+
+    def test_one_arg(self):
+        with self.assertRaises(SystemExit):
+            HowLong.error_and_exit("one")
+
+    def test_multi_arg(self):
+        with self.assertRaises(SystemExit):
+            HowLong.error_and_exit("one", "two")
diff --git a/requirements.txt b/requirements.txt
index 268a7b2..19c48a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,9 @@
 psutil>=5.0.1
 termcolor>=1.1.0
 colorama>=0.3.9
+pytest==3.9.2
+pytest-cov==2.6.0
+six==1.11.0
+mock==2.0.0
+pbr==5.1.0
 -e .