<?php

class PaletteTests extends \PHPUnit_Framework_TestCase
{
    public function test_class_is_found_and_has_default_attributes()
    {
        $palette = new \ivuorinen\Palette\Palette();
        $this->assertInstanceOf('ivuorinen\Palette\Palette', $palette);

        $this->assertInternalType('integer', $palette->precision);
        $this->assertInternalType('integer', $palette->returnColors);
        $this->assertInternalType('array', $palette->colorsArray);
        $this->assertInternalType('null', $palette->filename);
        $this->assertInternalType('string', $palette->destination);
    }

    public function test_known_images()
    {
        $location = dirname(__FILE__) . DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR;
        $images = ['black.png' => '000000', 'red.png' => 'CC3333'];

        foreach ($images as $imageFile => $hex) {
            $image = $location . $imageFile;
            $this->assertTrue(file_exists($image));

            $palette = new \ivuorinen\Palette\Palette($image);
            $this->assertCount(1, $palette->colorsArray);
            $this->assertArrayHasKey($hex, $palette->colorsArray);
            $this->assertEquals($image, $palette->filename);            
        }
    }
}