diff --git a/README.md b/README.md
index 6bf0720..15944d4 100755
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # node-opencv
 
 [![Build Status](https://secure.travis-ci.org/peterbraden/node-opencv.png)](http://travis-ci.org/peterbraden/node-opencv)
-
+[![Coverage](http://codecov.io/github/peterbraden/node-opencv/coverage.svg?branch=master)](https://codecov.io/gh/peterbraden/node-opencv)
 
 [OpenCV](http://opencv.org) bindings for Node.js. OpenCV is
 the defacto computer vision library - by interfacing with it natively in node,
@@ -223,6 +223,20 @@ contours.approxPolyDP(index, epsilon, isClosed);
 contours.convexHull(index, clockwise);
 ```
 
+## Test
+
+Using [tape](https://github.com/substack/tape). Run with command:
+
+`npm test`.
+
+## Code coverage
+
+Using [istanbul](http://gotwarlost.github.io/istanbul/) and [lcov](http://ltp.sourceforge.net/coverage/lcov.php). Run with command:
+
+`make cover`
+
+Build version of `opencv.node` will be generated, and coverage files will be put in `coverage/` directory. These files can be remvoved automatically by running `make clean`.
+
 ## MIT License
 The library is distributed under the MIT License - if for some reason that
 doesn't work for you please get in touch.