add small doc to run tests

Author: rhysd

.travis.yml

@@ -7,7 +7,6 @@ env:
     - CLANG_VERSION="5.0"
 
 install:
-    - bundle install
     - clang-format-${CLANG_VERSION} -version || true
     - vim --version
     - clang-format --version

.gitignore renamed to test/.gitignore

@@ -0,0 +1,23 @@
+How to run the tests
+====================
+
+## Prerequisities
+
+- Ruby 1.9 or higher
+- Rake
+- Bundler
+
+## How to run tests
+
+```
+$ bundle install --path=.bundle
+$ rake test
+```
+
+## How to watch file changes and run tests automatically
+
+```
+$ rake watch
+```
+
+It requires guard gem.

test/README.md

@@ -1,5 +1,5 @@
 task :test do
-  sh 'bundle install'
+  sh 'bundle install --path=.bundle'
   sh 'bundle exec vim-flavor test'
 end