add phpunit setup

Author: m-bymike

.travis.yml

@@ -0,0 +1,16 @@
+language: php
+php:
+  - '5.4'
+  - '5.5.9'
+  - '5.5'
+  - '5.6'
+  - '7.0'
+  - hhvm
+script:
+  - vendor/bin/sclcheck src/
+  - vendor/bin/phpunit
+install:
+  - composer install
+cache:
+  directories:
+  - vendor

phpunit.xml.dist

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+<phpunit
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.8/phpunit.xsd"
+        backupGlobals="true"
+        backupStaticAttributes="false"
+        bootstrap="test/unit/bootstrap.php"
+        cacheTokens="false"
+        colors="true"
+        convertErrorsToExceptions="true"
+        convertNoticesToExceptions="true"
+        convertWarningsToExceptions="true"
+        forceCoversAnnotation="false"
+        mapTestClassNameToCoveredClassName="true"
+        printerClass="PHPUnit_TextUI_ResultPrinter"
+        processIsolation="false"
+        stopOnError="false"
+        stopOnFailure="false"
+        stopOnIncomplete="false"
+        stopOnSkipped="false"
+        stopOnRisky="false"
+        testSuiteLoaderClass="PHPUnit_Runner_StandardTestSuiteLoader"
+        timeoutForSmallTests="1"
+        timeoutForMediumTests="10"
+        timeoutForLargeTests="60"
+        verbose="false">
+    <testsuites>
+        <testsuite name="default">
+            <directory>test/unit</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

test/unit/bootstrap.php

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+<?php
+/**
+ * This file is part of the Sclable Array Functions Package.
+ * For the full license information, please read the LICENSE
+ * file distributed with this source code.
+ */
+ 
+require dirname(dirname(__DIR__)) . '/vendor/autoload.php';