Increase test coverage (#1)

* Added test coverage
* Fix mergify configuration

Author: otherguy

.mergify.yml

@@ -3,7 +3,7 @@ pull_request_rules:
   # If there is at least one positive review and CI passed, merge
   - name: Automatic merge on CI success and review
     conditions:
-      - status-success=continuous-integration/travis-ci/pr
+      - status-success=Travis CI - Pull Request
       - "#approved-reviews-by>=1"
       - base=master
       - label!=WIP
@@ -23,7 +23,7 @@ pull_request_rules:
   - name: Automatic merge for Dependabot pull requests
     conditions:
       - author=dependabot[bot]
-      - status-success=continuous-integration/travis-ci/pr
+      - status-success=Travis CI - Pull Request
       - base=master
     actions:
       merge:

composer.json

@@ -25,9 +25,7 @@
 		"mihaeu/test-generator": "^1.3",
 		"php-coveralls/php-coveralls": "^2.1",
 		"phpunit/php-code-coverage": "^6.1",
-    "phpunit/phpunit": "^7.0",
-    "phpdocumentor/phpdocumentor": "2.*",
-    "sebastian/phpcpd": "2.*"
+    "phpunit/phpunit": "^7.0"
 	},
 	"suggest": {
 		"ext-curl": "Faster HTTP requests"