Forward compatibility with PHPUnit 7 and use legacy PHPUnit 5 on HHVM

Author: clue

.travis.yml

@@ -9,7 +9,7 @@ php:
   - 7.1
   - 7.2
   - 7.3
-  - hhvm # ignore errors, see below
+# - hhvm # requires legacy phpunit & ignore errors, see below
 
 # lock distro so new future defaults will not break the build
 dist: trusty
@@ -18,6 +18,8 @@ matrix:
   include:
     - php: 5.3
       dist: precise
+    - php: hhvm
+      install: composer require phpunit/phpunit:^5 --dev --no-interaction
   allow_failures:
     - php: hhvm
 

composer.json

@@ -7,7 +7,7 @@
         "php": ">=5.3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "~4.8.35 || ^5.7 || ^6.4"
+        "phpunit/phpunit": "^7.0 || ^6.4 || ^5.7 || ^4.8.35"
     },
     "suggest": {
         "ext-event": "~1.0 for ExtEventLoop",

phpunit.xml.dist

@@ -8,7 +8,6 @@
          convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="false"
-         syntaxCheck="false"
          bootstrap="vendor/autoload.php"
 >
     <testsuites>