Add PHPUnit call fallback for 5.2 specifically

.travis.yml

@@ -36,13 +36,13 @@ matrix:
     php: 7.2
     env: WP_VERSION=latest WP_MULTISITE=0 RUN_E2E=1
   - name: "Unit tests code coverage"
-    php: 7.1
+    php: 7.3
     env: WP_VERSION=latest WP_MULTISITE=0 RUN_CODE_COVERAGE=1
   - name: "WooCommerce unit tests using WordPress nightly"
     php: 7.3
     env: WP_VERSION=nightly WP_MULTISITE=0
   allow_failures:
-  - php: 7.1
+  - php: 7.3
     env: WP_VERSION=latest WP_MULTISITE=0 RUN_CODE_COVERAGE=1
 
 before_script:

tests/bin/phpunit.sh

@@ -6,6 +6,8 @@ fi
 
 if [[ ${RUN_CODE_COVERAGE} == 1 ]]; then
 	phpdbg -qrr $HOME/.composer/vendor/phpunit/phpunit/phpunit -d memory_limit=-1 -c phpunit.xml --coverage-clover=coverage.clover --exclude-group=timeout
+else if [[ ${TRAVIS_PHP_VERSION:0:3} != "5.2" ]]; then
+	$HOME/.composer/vendor/phpunit/phpunit/phpunit -c phpunit.xml
 else
 	phpunit -c phpunit.xml
 fi