diff --git a/setup.py b/setup.py
index d0729b6..9e22fef 100644
--- a/setup.py
+++ b/setup.py
@@ -35,6 +35,6 @@ setup(
     entry_points={
         "console_scripts": ["wal=pywal.__main__:main"]
     },
-    python_requires=">=3.6",
+    requires_python=">=3.6",
     test_suite="tests",
 )
diff --git a/tests/test_export_colors.py b/tests/test_export_colors.py
new file mode 100755
index 0000000..ce6fe1e
--- /dev/null
+++ b/tests/test_export_colors.py
@@ -0,0 +1,21 @@
+"""Test util functions."""
+import unittest
+import pathlib
+from pywal import export_colors
+from pywal import util
+
+
+class TestExportColors(unittest.TestCase):
+    """Test the export_colors functions."""
+
+    def test_save_colors(self):
+        """> Export colors to a file."""
+        tmp_file = pathlib.Path("/tmp/test_file")
+        colors = util.read_file("tests/test_file")
+        export_colors.save_colors(colors, tmp_file, "plain colors")
+        result = tmp_file.is_file()
+        self.assertTrue(result)
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/test_util.py b/tests/test_util.py
index 3aebc78..0d72f01 100755
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -8,41 +8,41 @@ class TestUtil(unittest.TestCase):
     """Test the util functions."""
 
     def test_read_file_start(self):
-        """Test read_file()."""
+        """> Read colors from a file."""
         result = util.read_file("tests/test_file")
         self.assertEqual(result[0], "#363442")
 
     def test_read_file_end(self):
-        """Test read_file()."""
+        """> Read colors from a file."""
         result = util.read_file("tests/test_file")
         self.assertEqual(result[15], "#C9CFD0")
 
     def test_save_file(self):
-        """Test save_file()."""
+        """> Save colors to a file."""
         tmp_file = pathlib.Path("/tmp/test_file")
         util.save_file("Hello, world", tmp_file)
         result = tmp_file.is_file()
         self.assertTrue(result)
 
     def test_create_dir(self):
-        """Test create_dir()."""
+        """> Create a directoru."""
         tmp_dir = pathlib.Path("/tmp/test_dir")
         util.create_dir(tmp_dir)
         result = tmp_dir.is_dir()
         self.assertTrue(result)
 
     def test_hex_to_rgb_black(self):
-        """Test hex_to_rgb() on #000000."""
+        """> Convert #000000 to RGB."""
         result = util.hex_to_rgb("#000000")
         self.assertEqual(result, "0,0,0")
 
     def test_hex_to_rgb_white(self):
-        """Test hex_to_rgb() on #FFFFFF."""
+        """> Convert #FFFFFF to RGB."""
         result = util.hex_to_rgb("#FFFFFF")
         self.assertEqual(result, "255,255,255")
 
     def test_hex_to_rgb_rand(self):
-        """Test hex_to_rgb() on #98AEC2."""
+        """> Convert #98AEC2 to RGB."""
         result = util.hex_to_rgb("#98AEC2")
         self.assertEqual(result, "152,174,194")