Run tests on PHP 7.4 and simplify test matrix

Author: SimonFrings

.travis.yml

@@ -1,27 +1,25 @@
 language: php
 
-php:
-# - 5.3 # requires old distro, see below
-  - 5.4
-  - 5.5
-  - 5.6
-  - 7.0
-  - 7.1
-  - 7.2
-  - 7.3
-  - hhvm # ignore errors, see below
-
-sudo: false
-
 # lock distro so new future defaults will not break the build
 dist: trusty
 
 matrix:
   include:
     - php: 5.3
       dist: precise
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: 7.2
+    - php: 7.3
+    - php: 7.4
+    - php: hhvm-3.18
   allow_failures:
-    - php: hhvm
+    - php: hhvm-3.18
+    
+sudo: false
 
 install:
   - composer install --no-interaction

composer.json

@@ -18,7 +18,7 @@
     },
     "require-dev": {
         "clue/block-react": "^1.1",
-        "phpunit/phpunit": "^5.0 || ^4.8"
+        "phpunit/phpunit": "^7.0 || ^5.0 || ^4.8"
     },
     "autoload": {
         "psr-4": { "Clue\\React\\Zenity\\": "src/" }