DrawingTest.php

<?php
/**
 * This file is part of PHPOffice Common
 *
 * PHPOffice Common is free software distributed under the terms of the GNU Lesser
 * General Public License version 3 as published by the Free Software Foundation.
 *
 * For the full copyright and license information, please read the LICENSE
 * file that was distributed with this source code. For the full list of
 * contributors, visit https://github.com/PHPOffice/Common/contributors.
 *
 * @see        https://github.com/PHPOffice/Common
 *
 * @copyright   2009-2016 PHPOffice Common contributors
 * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
 */

namespace PhpOffice\Common\Tests;

use PhpOffice\Common\Drawing;

/**
 * Test class for IOFactory
 *
 * @coversDefaultClass \PhpOffice\Common\IOFactory
 */
class DrawingTest extends \PHPUnit\Framework\TestCase
{
    public function testDegreesAngle(): void
    {
        $value = rand(1, 100);

        $this->assertEquals(0, Drawing::degreesToAngle());
        $this->assertEquals((int) round($value * 60000), Drawing::degreesToAngle($value));
        $this->assertEquals(0, Drawing::angleToDegrees());
        $this->assertEquals(round($value / 60000), Drawing::angleToDegrees($value));
    }

    public function testPixelsCentimeters(): void
    {
        $value = rand(1, 100);

        $this->assertEquals(0, Drawing::pixelsToCentimeters());
        $this->assertEquals($value / Drawing::DPI_96 * 2.54, Drawing::pixelsToCentimeters($value));
        $this->assertEquals(0, Drawing::centimetersToPixels());
        $this->assertEquals(round($value / 2.54 * Drawing::DPI_96), Drawing::centimetersToPixels($value));
    }

    public function testPixelsEMU(): void
    {
        $value = rand(1, 100);

        $this->assertEquals(0, Drawing::pixelsToEmu());
        $this->assertEquals(round($value * 9525), Drawing::pixelsToEmu($value));
        $this->assertEquals(0, Drawing::emuToPixels());
        $this->assertEquals(round($value / 9525), Drawing::emuToPixels($value));
    }

    public function testPixelsPoints(): void
    {
        $value = rand(1, 100);

        $this->assertEquals(0, Drawing::pixelsToPoints());
        $this->assertEquals($value * 0.75, Drawing::pixelsToPoints($value));
        $this->assertEquals(0, Drawing::pointsToPixels());
        $this->assertEquals($value / 0.75, Drawing::pointsToPixels($value));
    }

    public function testPointsCentimeters(): void
    {
        $value = rand(1, 100);

        $this->assertEquals(0, Drawing::pointsToCentimeters());
        $this->assertEquals($value / 0.75 / Drawing::DPI_96 * 2.54, Drawing::pointsToCentimeters($value));
    }

    public function testPointsEmu(): void
    {
        $value = rand(1, 100);

        $this->assertEquals(0, Drawing::pointsToEmu());
        $this->assertEquals(round($value / 0.75 / 9525), Drawing::pointsToEmu($value));
    }

    public function testCentimetersPoints(): void
    {
        $this->assertEquals(0, Drawing::centimetersToPoints());
        $this->assertEquals(28.346456692913385, Drawing::centimetersToPoints(1));
        $this->assertEquals(31.181102362204722, Drawing::centimetersToPoints(1.1));
    }

    public function testTwips(): void
    {
        $value = rand(1, 100);

        // Centimeters
        $this->assertEquals(0, Drawing::centimetersToTwips());
        $this->assertEquals($value * 566.928, Drawing::centimetersToTwips($value));

        $this->assertEquals(0, Drawing::twipsToCentimeters());
        $this->assertEquals($value / 566.928, Drawing::twipsToCentimeters($value));

        // Inches
        $this->assertEquals(0, Drawing::inchesToTwips());
        $this->assertEquals($value * 1440, Drawing::inchesToTwips($value));

        $this->assertEquals(0, Drawing::twipsToInches());
        $this->assertEquals($value / 1440, Drawing::twipsToInches($value));

        // Pixels
        $this->assertEquals(0, Drawing::twipsToPixels());
        $this->assertEquals(round($value / 15), Drawing::twipsToPixels($value));
    }

    public function testHTML(): void
    {
        $this->assertNull(Drawing::htmlToRGB('0'));
        $this->assertNull(Drawing::htmlToRGB('00'));
        $this->assertNull(Drawing::htmlToRGB('0000'));
        $this->assertNull(Drawing::htmlToRGB('00000'));

        $this->assertIsArray(Drawing::htmlToRGB('ABCDEF'));
        $this->assertCount(3, Drawing::htmlToRGB('ABCDEF'));
        $this->assertEquals([0xAB, 0xCD, 0xEF], Drawing::htmlToRGB('ABCDEF'));
        $this->assertEquals([0xAB, 0xCD, 0xEF], Drawing::htmlToRGB('#ABCDEF'));
        $this->assertEquals([0xAA, 0xBB, 0xCC], Drawing::htmlToRGB('ABC'));
        $this->assertEquals([0xAA, 0xBB, 0xCC], Drawing::htmlToRGB('#ABC'));
    }
}