Add more testing

.gitignore

@@ -1,3 +1,4 @@
 /vendor
 /example/qr.png
 /example/qr.svg
+/.php_cs.cache

.scrutinizer.yml

@@ -1,17 +1,13 @@
 checks:
-    php: true
+  php: true
 
 filter:
-    excluded_paths:
-        - tests/*
+  excluded_paths:
+    - tests/*
 
 build:
-    nodes:
-        tests: true
-        analysis:
-            tests:
-                override:
-                    -
-                        command: phpcs-run
-                        use_website_config: true
-                    - php-scrutinizer-run
+  nodes:
+    analysis:
+      tests:
+        override:
+          - php-scrutinizer-run

.travis.yml

@@ -11,8 +11,24 @@ env:
     - PREFER_LOWEST="--prefer-lowest"
     - PREFER_LOWEST=""
 
-before_script:
+jobs:
+  include:
+    - stage: "Integrate"
+      name: "Coding standard"
+      php: 7.3
+      env:
+        - PREFER_LOWEST=""
+      script: vendor/bin/php-cs-fixer --no-interaction --dry-run --diff -v fix src/
+    - name: "Static analysis"
+      php: 7.3
+      env:
+        - PREFER_LOWEST=""
+      script: vendor/bin/phpstan analyse
+
+install:
+  - composer validate --strict
   - composer update --prefer-source $PREFER_LOWEST
 
 script:
-  - vendor/bin/phpunit
+  - find src/ tests/ example/ -type f -name '*.php' -print0 | xargs -0 -L1 -P4 -- php -l
+  - vendor/bin/phpunit

composer.json

@@ -13,7 +13,9 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^6.4|^7.0",
-        "symfony/css-selector": "^4.2"
+        "symfony/css-selector": "^4.2",
+        "phpstan/phpstan": "^0.12.23",
+        "friendsofphp/php-cs-fixer": "^2.16"
     },
     "autoload": {
         "psr-4": {