test script improvements (GoogleCloudPlatform#397)

* CS fixer now works from any path
* test suites run from any path and if `TEST_DIRECTORIES` is set, only tests those

* ensures the check happens from the current path

* adds path-mode intersection to cs fixer

Author: bshaffer

testing/run_all_tests.sh

@@ -15,12 +15,13 @@
 
 set -ex
 
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # only run when explicitly set
 if [ "${RUN_CS_FIXER}" = "true" ]; then
-  testing/run_cs_check.sh;
+  $DIR/run_cs_check.sh;
 fi
-testing/run_test_suite.sh;
+$DIR/run_test_suite.sh;
 # only run for travis crons
 if [ "${TRAVIS_EVENT_TYPE}" != "pull_request" ]; then
-  testing/run_dependency_check.sh;
+  $DIR/run_dependency_check.sh;
 fi

testing/run_cs_check.sh

@@ -22,4 +22,6 @@ if [ -f "vendor/bin/php-cs-fixer" ]; then
 elif [ -f "./php-cs-fixer" ]; then
     PHP_CS_FIXER="./php-cs-fixer"
 fi
-$PHP_CS_FIXER fix --dry-run --diff
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+$PHP_CS_FIXER fix --dry-run --diff --config="$DIR/../.php_cs.dist" --path-mode=intersection .

testing/run_test_suite.sh

@@ -29,8 +29,12 @@ else
     RUN_ALL_TESTS=0
 fi
 
+if [ "${TEST_DIRECTORIES}" = "" ]; then
+  TEST_DIRECTORIES="*"
+fi
+
 # Loop through all directories containing "phpunit.xml*" and run the test suites.
-find * -name 'phpunit.xml*' -not -path '*/vendor/*' -exec dirname {} \; | while read DIR
+find $TEST_DIRECTORIES -name 'phpunit.xml*' -not -path '*vendor/*' -exec dirname {} \; | while read DIR
 do
     # Only run tests for samples that have changed.
     if [ "$RUN_ALL_TESTS" -ne "1" ]; then