API Update to use PHPUnit 7, bump minimum PHP version to 7.1

.travis.yml

@@ -9,27 +9,19 @@ cache:
     - $HOME/.composer/cache/files
 
 php:
- - 5.6
+  - 7.1
+  - 7.2
 
 env:
   matrix:
     - PHPUNIT_TEST=1
     - PHPCS_TEST=1
 
-matrix:
-  include:
-    - php: 5.6
-      env: PHPUNIT_TEST=1
-    - php: 7.0
-      env: PHPUNIT_TEST=1
-    - php: 7.1.2
-      env: PHPUNIT_TEST=1
-
 before_script:
   - export PATH=~/.composer/vendor/bin:$PATH
   - composer validate
   - composer install --dev --prefer-dist
-  - composer require --prefer-dist --no-update silverstripe/recipe-core:1.0.x-dev
+  - composer require --prefer-dist --no-update silverstripe/recipe-core:2.x-dev
   - composer update
   - if [[ $PHPCS_TEST ]]; then composer global require squizlabs/php_codesniffer:^3 --prefer-dist --no-interaction --no-progress --no-suggest -o; fi
   - phpenv rehash

composer.json

@@ -21,8 +21,8 @@
         }
     ],
     "require": {
-        "php": ">=5.6",
-        "phpunit/phpunit": "^5.7",
+        "php": ">=7.1",
+        "phpunit/phpunit": "^7@dev",
         "behat/behat": "^3.2",
         "behat/mink": "^1.7",
         "behat/mink-extension": "^2.1",

tests/php/SilverStripeContextTest.php

@@ -8,10 +8,11 @@ use Behat\Mink\Session;
 use Behat\Mink\Mink;
 use Behat\Mink\Driver\DriverInterface;
 use Behat\Mink\Element\Element;
+use PHPUnit\Framework\TestCase;
 use SilverStripe\BehatExtension\Tests\SilverStripeContextTest\FeatureContext;
 use SilverStripe\Dev\SapphireTest;
 
-class SilverStripeContextTest extends \PHPUnit_Framework_TestCase
+class SilverStripeContextTest extends TestCase
 {
 
     protected $backupGlobals = false;