diff --git a/tests/test_format_colors.py b/tests/test_format_colors.py
new file mode 100755
index 0000000..fab7181
--- /dev/null
+++ b/tests/test_format_colors.py
@@ -0,0 +1,46 @@
+"""Test format functions."""
+import unittest
+from pywal import format_color
+from pywal import util
+
+
+# Import colors.
+COLORS = util.read_file("tests/test_file")
+
+
+class TestExportColors(unittest.TestCase):
+    """Test the format_colors functions."""
+
+    def test_plain(self):
+        """> Convert colors to plain."""
+        result = format_color.plain(COLORS)
+        self.assertEqual(result[0], "#363442\n")
+
+    def test_shell(self):
+        """> Convert colors to shell variables."""
+        result = format_color.shell(COLORS)
+        self.assertEqual(result[0], "color0='#363442'\n")
+
+    def test_css(self):
+        """> Convert colors to css variables."""
+        result = format_color.css(COLORS)
+        self.assertEqual(result[1], "\t--color0: #363442;\n")
+
+    def test_scss(self):
+        """> Convert colors to scss variables."""
+        result = format_color.scss(COLORS)
+        self.assertEqual(result[0], "$color0: #363442;\n")
+
+    def test_putty(self):
+        """> Convert colors to putty theme."""
+        result = format_color.putty(COLORS)
+        self.assertEqual(result[2], "\"colour0\"=\"54,52,66\"\n")
+
+    def test_xrdb(self):
+        """> Convert colors to putty theme."""
+        result = format_color.xrdb(COLORS)
+        self.assertEqual(result[6], "*.color0: #363442\n*color0: #363442\n")
+
+
+if __name__ == "__main__":
+    unittest.main()