Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

namespace core_ai;

/**

 * Test ai image class methods.

 *

 * @package    core_ai

 * @copyright  2024 Matt Porritt <matt.porritt@moodle.com>

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 * @covers     \core_ai\ai_image

 */

final class ai_image_test extends \advanced_testcase {

    /**

     * Test get_predominant_color.

     */

    public function test_get_predominant_color(): void {

        $x = 0;

        $y = 180;

        $width = 20;

        $height = 20;

        // Test for black image.

        $imagepath = self::get_fixture_path(__NAMESPACE__, 'black.png'); // Get the test image from the fixtures file.

        $image = new ai_image($imagepath);

        // We're working with a private method here, so we need to use reflection.

        $method = new \ReflectionMethod($image, 'get_predominant_color');

        $color = $method->invoke($image, $x, $y, $width, $height);

        $this->assertEquals(0, $color['red']);

        $this->assertEquals(0, $color['green']);

        $this->assertEquals(0, $color['blue']);

        // Test for white image.

        $imagepath = self::get_fixture_path(__NAMESPACE__, 'white.png');

        $image = new ai_image($imagepath);

        // We're working with a private method here, so we need to use reflection.

        $method = new \ReflectionMethod($image, 'get_predominant_color');

        $color = $method->invoke($image, $x, $y, $width, $height);

        $this->assertEquals(255, $color['red']);

        $this->assertEquals(255, $color['green']);

        $this->assertEquals(255, $color['blue']);

        // Test for grey image.

        $imagepath = self::get_fixture_path(__NAMESPACE__, 'grey.png');

        $image = new ai_image($imagepath);

        // We're working with a private method here, so we need to use reflection.

        $method = new \ReflectionMethod($image, 'get_predominant_color');

        $color = $method->invoke($image, $x, $y, $width, $height);

        $this->assertEquals(128, $color['red']);

        $this->assertEquals(128, $color['green']);

        $this->assertEquals(128, $color['blue']);

    }

    /**

     * Test is_color_dark.

     */

    public function test_is_color_dark(): void {

        // Load an image as it is required for class instantiation.

        // The color of the image is not important for this test.

        $imagepath = self::get_fixture_path(__NAMESPACE__, 'black.png');

        $image = new ai_image($imagepath);

        // We're working with a private method here, so we need to use reflection.

        $method = new \ReflectionMethod($image, 'is_color_dark');

        $color = ['red' => 0, 'green' => 0, 'blue' => 0];

        $result = $method->invoke($image, $color);

        $this->assertTrue($result);

        $image = new ai_image($imagepath);

        // We're working with a private method here, so we need to use reflection.

        $method = new \ReflectionMethod($image, 'is_color_dark');

        $color = ['red' => 255, 'green' => 255, 'blue' => 255];

        $result = $method->invoke($image, $color);

        $this->assertFalse($result);

        $imagepath = self::get_fixture_path(__NAMESPACE__, 'grey.png');

        $image = new ai_image($imagepath);

        // We're working with a private method here, so we need to use reflection.

        $method = new \ReflectionMethod($image, 'is_color_dark');

        $color = ['red' => 128, 'green' => 128, 'blue' => 128];

        $result = $method->invoke($image, $color);

        $this->assertTrue($result);

    }

}