Merge pull request #575 from lucasfcosta/clean-browser-before-karma

Clean browser before karma

Author: keithamus

CONTRIBUTING.md

@@ -121,12 +121,9 @@ git checkout -b <topic-branch-name>
 
 4. Commit your changes in logical chunks. Use Git's [interactive rebase](https://help.github.com/articles/interactive-rebase) feature to tidy up your commits before making them public.
 
-5. Run you code to make sure it works.
+5. Run you code to make sure it works. If you're still having problems please try to run `make clean` and then test your code again.
 
 ```bash
-npm i
-rm chai.js
-make chai.js
 npm test
 # when finished running tests...
 git checkout chai.js

Makefile

@@ -61,17 +61,17 @@ test-cov: node_modules
 		--require ./test/bootstrap \
 		$(TESTS) \
 
-test-phantom: chai.js
+test-phantom: clean-browser chai.js
 	@printf "==> [Test :: Karma (PhantomJS)]\n"
 	@./node_modules/karma/bin/karma start \
 		--single-run --browsers PhantomJS
 
-test-firefox: chai.js
+test-firefox: clean-browser chai.js
 	@printf "==> [Test :: Karma (Firefox)]\n"
 	@./node_modules/karma/bin/karma start \
 		--browsers Firefox
 
-test-sauce: chai.js
+test-sauce: clean-browser chai.js
 	@printf "==> [Test :: Karma (Sauce)]\n"
 	@CHAI_TEST_ENV=sauce ./node_modules/karma/bin/karma start \
 		--single-run