Test enhancement

Author: peter279k

.gitignore

@@ -1 +1,2 @@
 vendor/
+composer.lock

.travis.yml

@@ -7,6 +7,7 @@ php:
     - "7.1"
     - "7.2"
     - "7.3"
+    - "7.4"
     - hhvm-3.30
 sudo: false
 dist: trusty
@@ -16,7 +17,6 @@ matrix:
             php: "5.3"
             dist: precise
             sudo: false
-before_script: rm composer.lock && composer install
+before_script: composer install
 script: ./vendor/bin/phpunit --coverage-clover build/coverage/xml
 after_script: ./vendor/bin/codacycoverage clover build/coverage/xml
-

composer.json

@@ -12,10 +12,10 @@
         "php": ">=5.3.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "~4.8",
+        "phpunit/phpunit": "^4.8.36",
         "codacy/coverage": "^1.4"
     },
     "autoload": {
-        "psr-0": { "Sabberworm\\CSS\\": "lib/" }
+        "psr-4": { "Sabberworm\\CSS\\": "lib/Sabberworm/CSS/" }
     }
 }