Added testing for laravel 5.7 to travis ci config file

Author: korridor

.travis.yml

@@ -1,38 +1,54 @@
 cache:
-  directories:
-    - $HOME/.composer/cache
+    directories:
+        - $HOME/.composer/cache
 
 language: php
 
 matrix:
-  include:
-    - php: 7.2
-      env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
-    - php: 7.2
-      env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
-    - php: 7.3
-      env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
-    - php: 7.3
-      env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
-    - php: 7.2
-      env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-lowest'
-    - php: 7.2
-      env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-stable'
-    - php: 7.3
-      env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-lowest'
-    - php: 7.3
-      env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-stable'
-  fast_finish: true
-
-before_script:
-  - composer config discard-changes true
+    include:
+        - php: 7.1
+          env: LARAVEL='5.7.*' TESTBENCH='3.7.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.1
+          env: LARAVEL='5.7.*' TESTBENCH='3.7.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.2
+          env: LARAVEL='5.7.*' TESTBENCH='3.7.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.2
+          env: LARAVEL='5.7.*' TESTBENCH='3.7.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.3
+          env: LARAVEL='5.7.*' TESTBENCH='3.7.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.3
+          env: LARAVEL='5.7.*' TESTBENCH='3.7.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.1
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.1
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.2
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.2
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.3
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.3
+          env: LARAVEL='5.8.*' TESTBENCH='3.8.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.2
+          env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.2
+          env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-stable'
+        - php: 7.3
+          env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-lowest'
+        - php: 7.3
+          env: LARAVEL='6.*' TESTBENCH='4.*' COMPOSER_FLAGS='--prefer-stable'
+    fast_finish: true
 
 before_install:
-  - travis_retry composer self-update
-  - travis_retry composer require "laravel/framework:${LARAVEL}" "orchestra/testbench:${TESTBENCH}" --no-interaction --no-update
+    - travis_retry composer self-update
+    - travis_retry composer require "laravel/framework:${LARAVEL}" "orchestra/testbench:${TESTBENCH}" --no-interaction --no-update
 
 install:
-  - travis_retry composer update ${COMPOSER_FLAGS} --prefer-dist --no-interaction --no-suggest
+    - travis_retry composer update ${COMPOSER_FLAGS} --prefer-dist --no-interaction --no-suggest
+
+before_script:
+    - composer config discard-changes true
 
 script:
-  - vendor/bin/phpunit --coverage-text --coverage-clover=coverage.clover
+    - vendor/bin/phpunit --coverage-text

composer.json

@@ -12,10 +12,10 @@
     "license": "MIT",
     "require": {
         "php": "^7.1|^7.2|^7.3",
-        "illuminate/support": "^5.8|^6.0"
+        "illuminate/support": "^5.7|^5.8|^6.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^3.5|^4.0",
+        "orchestra/testbench": "^3.7|^3.8|^4.0",
         "phpunit/phpunit": "^7.0|^8.0",
         "friendsofphp/php-cs-fixer": "^2.15",
         "squizlabs/php_codesniffer": "^3.4"