Update Travis builds to include PHP 7, update PHPUnit to 5.7

.travis.yml

@@ -1,33 +1,21 @@
 # See https://github.com/silverstripe/silverstripe-travis-support for setup details
 
-sudo: false
+dist: trusty
 
 language: php
 
-php:
-  - 5.6
-
-env:
-  global:
-    - DB=MYSQL CORE_RELEASE=3
-    - MODULE_PATH=iframe
-    - COVERAGE=0
-
 matrix:
   include:
-    - php: 5.6
-      env: DB=MYSQL CORE_RELEASE=3.5
-    - php: 5.6
-      env: DB=PGSQL CORE_RELEASE=3
-    # Allowed to fail, meaning delayed code coverage reports
-    - php: 5.5.9
-      env: DB=MYSQL CORE_RELEASE=3 COVERAGE=1
-  allow_failures:
-    - php: 5.5.9
-  fast_finish: true
-
-before_install:
-  - pip install --user codecov
+    - php: '5.6'
+      env: DB=MYSQL CORE_RELEASE=3.6
+    - php: '7.0'
+      env: DB=PGSQL CORE_RELEASE=3.7
+    - php: '7.1'
+      env: DB=MYSQL CORE_RELEASE=3.7
+    - php: '7.2'
+      env: DB=MYSQL CORE_RELEASE=3.7
+    - php: '7.3'
+      env: DB=MYSQL CORE_RELEASE=3.7
 
 before_script:
   - composer self-update || true
@@ -37,15 +25,4 @@ before_script:
   - composer install
 
 script:
-  # Execute tests with no coverage.  This is the fastest option
-  - "if [ \"$COVERAGE\" = \"0\" ]; then vendor/bin/phpunit $MODULE_PATH/tests/; fi"
-
-  # Execute tests with coverage.  Do this for a small
-  - "if [ \"$COVERAGE\" = \"1\" ]; then vendor/bin/phpunit --coverage-clover=coverage.clover $MODULE_PATH/tests/; fi"
-
-after_script:
-  - "if [ \"$COVERAGE\" = \"1\" ]; then mv coverage.clover ~/build/$TRAVIS_REPO_SLUG/; fi"
-  - cd ~/build/$TRAVIS_REPO_SLUG
-  - wget https://scrutinizer-ci.com/ocular.phar
-  - "if [ \"$COVERAGE\" = \"1\" ]; then travis_retry codecov && travis_retry php ocular.phar code-coverage:upload --format=php-clover coverage.clover; fi"
-
+  - vendor/bin/phpunit iframe/tests

composer.json

@@ -16,5 +16,8 @@
         "silverstripe/framework": "3.*",
         "silverstripe/cms": "3.*"
     },
+    "require-dev": {
+        "phpunit/phpunit": "^5.7"
+    },
     "extra": []
-}
+}