Merge pull request #3 from clue-labs/tests

Update test suite to support PHPUnit 6 and PHPUnit 5 and support running on legacy PHP 5.3 through PHP 7.2 and HHVM

.travis.yml

@@ -1,11 +1,29 @@
 language: php
+
 php:
-  - 5.6
-  - 5.5
+# - 5.3 # requires old distro, see below
   - 5.4
-  - 5.3
-  - hhvm
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+  - hhvm # ignore errors, see below
+
+# lock distro so future defaults will not break the build
+dist: trusty
+
+matrix:
+  include:
+    - php: 5.3
+      dist: precise
+  allow_failures:
+    - php: hhvm
+
+sudo: false
+
 install:
-  - composer install --prefer-source --no-interaction
+  - composer install --no-interaction
+
 script:
-  - php vendor/bin/phpunit --coverage-text
+  - vendor/bin/phpunit --coverage-text

README.md

@@ -16,6 +16,26 @@ The recommended way to install this library is [through composer](http://getcomp
 }
 ```
 
+This project aims to run on any platform and thus does not require any PHP
+extensions and supports running on legacy PHP 5.3 through current PHP 7+ and
+HHVM.
+It's *highly recommended to use PHP 7+* for this project.
+
+## Tests
+
+To run the test suite, you first need to clone this repo and then install all
+dependencies [through Composer](https://getcomposer.org):
+
+```bash
+$ composer install
+```
+
+To run the test suite, go to the project root and run:
+
+```bash
+$ php vendor/bin/phpunit
+```
+
 ## License
 
 Released under the terms of the permissive [MIT license](http://opensource.org/licenses/MIT).

composer.json

@@ -15,7 +15,7 @@
         "clue/graph": "~0.9.0|~0.8.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "~4.0"
+        "phpunit/phpunit": "^6.4 || ^5.7 || ^4.8.35"
     },
     "autoload": {
         "psr-4": {"Graphp\\TrivialGraphFormat\\": "src/"}

phpunit.xml.dist

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<phpunit bootstrap="tests/bootstrap.php"
+<phpunit bootstrap="vendor/autoload.php"
          colors="true"
          convertErrorsToExceptions="true"
          convertNoticesToExceptions="true"

tests/TrivialGraphFormatTest.php

@@ -1,7 +1,8 @@
 <?php
 
-use Graphp\TrivialGraphFormat\TrivialGraphFormat;
 use Fhaculty\Graph\Graph;
+use Graphp\TrivialGraphFormat\TrivialGraphFormat;
+use PHPUnit\Framework\TestCase;
 
 class TrivialGraphFormatTest extends TestCase
 {