Update to PHP 7 and PHPUnit 6

Author: carusogabriel

.travis.yml

@@ -1,17 +1,13 @@
 language: php
 dist: trusty
 php:
-  - 5.5
-  - 5.6
   - 7.0
   - 7.1
-  - hhvm
   - nightly
 
 matrix:
   allow_failures:
     - php:
-      - hhvm
       - nightly
 
 cache:
@@ -27,7 +23,7 @@ before_script:
  - composer install --no-interaction
 
 after_script:
-  - if [ $TRAVIS_PHP_VERSION = '5.6' ]; then wget https://scrutinizer-ci.com/ocular.phar; php ocular.phar code-coverage:upload --format=php-clover coverage.clover; fi
+  - if [ $TRAVIS_PHP_VERSION = '7.0' ]; then wget https://scrutinizer-ci.com/ocular.phar; php ocular.phar code-coverage:upload --format=php-clover coverage.clover; fi
 
 notifications:
   irc: "irc.freenode.org#phpdocumentor"

composer.json

@@ -1,23 +1,30 @@
 {
-    "name":    "phpdocumentor/type-resolver",
-    "type":    "library",
+    "name": "phpdocumentor/type-resolver",
+    "type": "library",
     "license": "MIT",
     "authors": [
-        {"name": "Mike van Riel", "email": "[email protected]"}
+        {
+          "name": "Mike van Riel",
+          "email": "[email protected]"
+        }
     ],
     "require": {
-        "php": "^5.5 || ^7.0",
+        "php": "^7.0",
         "phpdocumentor/reflection-common": "^1.0"
     },
     "autoload": {
-        "psr-4": {"phpDocumentor\\Reflection\\": ["src/"]}
+        "psr-4": {
+          "phpDocumentor\\Reflection\\": "src"
+        }
     },
     "autoload-dev": {
-        "psr-4": {"phpDocumentor\\Reflection\\": ["tests/unit"]}
+        "psr-4": {
+          "phpDocumentor\\Reflection\\": "tests/unit"
+        }
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.7 ||^4.8.35",
-        "mockery/mockery": "^0.9.4"
+        "phpunit/phpunit": "^6.4",
+        "mockery/mockery": "^1.0"
     },
     "extra": {
         "branch-alias": {

tests/unit/TypeResolverTest.php

@@ -29,6 +29,15 @@
  */
 class TypeResolverTest extends TestCase
 {
+
+    /**
+     * Call Mockery::close after each test.
+     */
+    public function tearDown()
+    {
+        m::close();
+    }
+
     /**
      * @param string $keyword
      * @param string $expectedClass