Fix Travis CI configuration (#33)

* Fix Travis CI configuration

* SUpport 5.6 and 7.*, owngrade PHPUnit

* Use older autoload class name

* Use vendor binary

* Install composer deps

* Remove php 7 syntax

* Add build badge

.travis.yml

@@ -1,13 +1,13 @@
 language: php
 php:
-    - 5.5
-    - 5.4
-    - 7
-script: phpunit
+    - 5.6
+    - 7.1
+    - 7.2
+    - 7.3
+before_script:
+  - composer install --prefer-source --no-interaction --dev
+
+script: ./vendor/bin/phpunit
 
 env:
     - AUTOLOAD=1
-
-script: php ./build.php ${AUTOLOAD}
-after_script: ./vendor/bin/coveralls -v
-sudo: false

README.md

@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/robwittman/shopify-php-sdk.svg?branch=master)](https://travis-ci.org/robwittman/shopify-php-sdk)
+
 # Shopify PHP SDK
 
 This SDK was created to enable rapid efficient development using Shopify's API.

composer.json

@@ -27,7 +27,7 @@
         ]
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.1",
+        "phpunit/phpunit": "^5.1",
         "squizlabs/php_codesniffer": "^3.0",
         "overtrue/phplint": "^0.2.4"
     },

src/Service/AbstractService.php

@@ -26,7 +26,7 @@ abstract class AbstractService
     const REQUEST_METHOD_PUT = 'PUT';
     const REQUEST_METHOD_DELETE = 'DELETE';
 
-    public static function factory(ApiInterface $api): AbstractService
+    public static function factory(ApiInterface $api)
     {
         return new static($api);
     }

test/TestCase.php

@@ -12,7 +12,7 @@
 
 session_start();
 
-class TestCase extends \PHPUnit\Framework\TestCase
+class TestCase extends \PHPUnit_Framework_TestCase
 {
     public function getApi(array $params = array())
     {