Implemented Unit Testing.

README.md

@@ -91,6 +91,35 @@ heroku config:add BUILDPACK_URL=git://github.com/iphoting/heroku-buildpack-php-t
 
 Push deploy your app and you should see Nginx, mcrypt, and PHP being bundled.
 
+
+Testing the Buildpack
+---------------------
+Setup the test environment on Heroku as follows:
+```
+$ cd heroku-buildpack-php-tyler/
+$ heroku create -s cedar -b git://github.com/ryanbrainard/heroku-buildpack-testrunner.git
+Creating deep-thought-1234... done, stack is cedar
+http://deep-thought-1234.herokuapp.com/ | git@heroku.com:deep-thought-1234.git
+Git remote heroku added
+```
+
+Then, push the buildpack to be tested into Heroku:
+```
+$ git push -f heroku <branch>:master  # where <branch> is the git branch you want to test.
+```
+
+Finally, run those tests:
+```
+$ heroku run tests
+```
+
+If you run your tests programatically, you might need the follow command instead:
+```
+$ heroku run tests | bin/report
+```
+
+Source: <https://github.com/ryanbrainard/heroku-buildpack-testrunner>
+
 Credits
 -------
 

test/compile_test.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+. ${BUILDPACK_TEST_RUNNER_HOME}/lib/test_utils.sh
+
+. ${BUILDPACK_HOME}/support/set-env.sh
+
+testCompile()
+{
+	compile
+
+	assertCapturedSuccess
+
+	assertCaptured "-----> Installing Nginx"
+	assertCaptured "-----> Bundling Nginx v${NGINX_VERSION}"
+	assertTrue "nginx should be executable" "[ -x ${BUILD_DIR}/vendor/nginx/sbin/nginx ]"
+
+	assertCaptured "-----> Installing libmcrypt"
+	assertCaptured "-----> Bundling libmcrypt v${LIBMCRYPT_VERSION}"
+	assertTrue "libmcrypt should exist" "[ -e ${BUILD_DIR}/local/lib/libmcrypt.so ]"
+
+	assertCaptured "-----> Installing libmemcached"
+	assertCaptured "-----> Bundling libmemcached v${LIBMEMCACHED_VERSION}"
+	assertTrue "libmemcached should exist" "[ -e ${BUILD_DIR}/local/lib/libmemcached.so ]"
+
+	assertCaptured "-----> Installing PHP"
+	assertCaptured "-----> Bundling PHP v${PHP_VERSION}"
+	assertTrue "php-fpm should be executable" "[ -x ${BUILD_DIR}/vendor/php/sbin/php-fpm ]"
+
+	assertCaptured "-----> Installing newrelic"
+	assertCaptured "-----> Bundling newrelic daemon v${NEWRELIC_VERSION}"
+	assertTrue "newrelic-daemon should be executable" "[ -x  ${BUILD_DIR}/local/bin/newrelic-daemon ]"
+
+	assertCaptured "-----> Copying config files"
+	assertTrue "php-fpm.conf exists and readable" "[ -r ${BUILD_DIR}/vendor/php/etc/php-fpm.conf ]"
+	assertTrue "php.ini exists and readable" "[ -r ${BUILD_DIR}/vendor/php/php.ini ]"
+	assertTrue "php/etc.d/ directory exists" "[ -d ${BUILD_DIR}/vendor/php/etc.d/ ]"
+	assertTrue "nginx.conf.erb exists and readable" "[ -r ${BUILD_DIR}/vendor/nginx/conf/nginx.conf.erb ]"
+
+	assertCaptured "-----> Installing boot script"
+	assertTrue "boot.sh exists and executable" "[ -x ${BUILD_DIR}/boot.sh ]"
+
+	assertCaptured "-----> Done with compile"
+}

test/detect_test.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+. ${BUILDPACK_TEST_RUNNER_HOME}/lib/test_utils.sh
+
+testDetect()
+{
+	mkdir -p ${BUILD_DIR}/
+	touch ${BUILD_DIR}/index.php
+
+	detect
+
+	assertCapturedSuccess
+	assertAppDetected "PHP"
+}
+
+testNoDetectPHP()
+{
+	mkdir -p ${BUILD_DIR}/
+
+	detect
+
+	assertCapturedError 1 "no"
+	assertNoAppDetected
+}