test to measure color performance

tests/test_color.py

@@ -0,0 +1,10 @@
+import testenv
+from papers import color
+
+def perf_color():
+    s = str(range(1000))
+    for _ in range(5000000):
+        color.dye(s, color.red)
+
+if __name__ == '__main__':
+    perf_color()

tests/testenv.py

@@ -0,0 +1,3 @@
+# Adjusting paths.
+import os, sys
+sys.path.insert(0, os.path.abspath(os.path.join(__file__, '../..')))