First tests

composer.json

@@ -21,5 +21,8 @@
     },
     "require": {
         "php": ">=5.2.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~6.0"
     }
 }

phpunit.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false"
+         bootstrap="vendor/autoload.php"
+>
+    <testsuites>
+        <testsuite name="Test Suite">
+            <directory>./tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./src/</directory>
+        </whitelist>
+    </filter>
+</phpunit>

tests/PaletteTests.php

@@ -0,0 +1,18 @@
+<?php
+
+class PaletteTests extends \PHPUnit_Framework_TestCase
+{
+    public $palette;
+
+    public function test_class_is_found_and_has_default_attributes()
+    {
+        $this->palette = new \ivuorinen\Palette\Palette();
+        $this->assertInstanceOf('ivuorinen\Palette\Palette', $this->palette);
+
+        $this->assertInternalType('integer', $this->palette->precision);
+        $this->assertInternalType('integer', $this->palette->returnColors);
+        $this->assertInternalType('array', $this->palette->colorsArray);
+        $this->assertInternalType('null', $this->palette->filename);
+        $this->assertInternalType('string', $this->palette->destination);
+    }
+}