Keep test suite in sync with WP files when testing trunk/nightlies

This replaces the existing process of downloading the nightly .zip file with exporting a clean directory tree from https://core.svn.wordpress.org/trunk, which is more closely in sync with the unit test suite files installed during the install_test_suite() process. Additionally, using `svn export` instead of `svn co` avoids downloading the .svn directory, which is unnecessary.

Author: joemcgill

templates/install-wp-tests.sh

@@ -62,10 +62,9 @@ install_wp() {
 	mkdir -p $WP_CORE_DIR
 
 	if [[ $WP_VERSION == 'nightly' || $WP_VERSION == 'trunk' ]]; then
-		mkdir -p $TMPDIR/wordpress-nightly
-		download https://wordpress.org/nightly-builds/wordpress-latest.zip  $TMPDIR/wordpress-nightly/wordpress-nightly.zip
-		unzip -q $TMPDIR/wordpress-nightly/wordpress-nightly.zip -d $TMPDIR/wordpress-nightly/
-		mv $TMPDIR/wordpress-nightly/wordpress/* $WP_CORE_DIR
+		mkdir -p $TMPDIR/wordpress-trunk
+		svn export --quiet https://core.svn.wordpress.org/trunk $TMPDIR/wordpress-trunk/wordpress
+		mv $TMPDIR/wordpress-trunk/wordpress/* $WP_CORE_DIR
 	else
 		if [ $WP_VERSION == 'latest' ]; then
 			local ARCHIVE_NAME='latest'
@@ -107,8 +106,8 @@ install_test_suite() {
 	if [ ! -d $WP_TESTS_DIR ]; then
 		# set up testing suite
 		mkdir -p $WP_TESTS_DIR
-		svn co --quiet --ignore-externals https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/includes/ $WP_TESTS_DIR/includes
-		svn co --quiet --ignore-externals https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/data/ $WP_TESTS_DIR/data
+		svn export --quiet --ignore-externals https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/includes/ $WP_TESTS_DIR/includes
+		svn export --quiet --ignore-externals https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/data/ $WP_TESTS_DIR/data
 	fi
 
 	if [ ! -f wp-tests-config.php ]; then