95 lines
3.2 KiB
PHP
95 lines
3.2 KiB
PHP
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<?php
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/**
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* BlendModeTest.php
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*
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* @since 2026-07-17
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* @category Library
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* @package PdfGraph
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* @author Nicola Asuni <info@tecnick.com>
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* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
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* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
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* @link https://github.com/tecnickcom/tc-lib-pdf-graph
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*
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* This file is part of tc-lib-pdf-graph software library.
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*/
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namespace Test;
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use Com\Tecnick\Pdf\Graph\BlendMode;
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/**
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* BlendMode enum test
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*
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* @since 2026-07-17
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* @category Library
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* @package PdfGraph
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* @author Nicola Asuni <info@tecnick.com>
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* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
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* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
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* @link https://github.com/tecnickcom/tc-lib-pdf-graph
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*/
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class BlendModeTest extends TestUtil
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{
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protected function getTestObject(): \Com\Tecnick\Pdf\Graph\Draw
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{
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return new \Com\Tecnick\Pdf\Graph\Draw(1, 0, 0, new \Com\Tecnick\Color\Pdf(), $this->getEncryptObject(), false);
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}
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public function testCaseBackingValues(): void
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{
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$this->assertSame('Normal', BlendMode::Normal->value);
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$this->assertSame('Multiply', BlendMode::Multiply->value);
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$this->assertSame('Luminosity', BlendMode::Luminosity->value);
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$this->assertCount(16, BlendMode::cases());
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}
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public function testFromLooseCanonical(): void
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{
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$this->assertSame(BlendMode::Multiply, BlendMode::fromLoose('Multiply'));
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$this->assertSame(BlendMode::ColorBurn, BlendMode::fromLoose('ColorBurn'));
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}
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public function testFromLooseStripsLeadingSlash(): void
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{
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$this->assertSame(BlendMode::Screen, BlendMode::fromLoose('/Screen'));
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}
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public function testFromLooseFallsBackToNormal(): void
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{
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$this->assertSame(BlendMode::Normal, BlendMode::fromLoose('bogus'));
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$this->assertSame(BlendMode::Normal, BlendMode::fromLoose(''));
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// case sensitive: wrong case is unknown and falls back
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$this->assertSame(BlendMode::Normal, BlendMode::fromLoose('multiply'));
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}
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public function testFromLoosePassesThroughEnumInstance(): void
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{
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$this->assertSame(BlendMode::HardLight, BlendMode::fromLoose(BlendMode::HardLight));
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}
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public function testFromLooseRoundTrip(): void
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{
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foreach (BlendMode::cases() as $case) {
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$this->assertSame($case, BlendMode::fromLoose($case->value));
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}
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}
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/**
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* The widened getAlpha() accepts a BlendMode enum; equal blend modes dedupe
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* to the same ExtGState reference, different ones do not.
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*
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* @throws \Com\Tecnick\Pdf\Graph\Exception
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*/
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public function testGetAlphaAcceptsEnum(): void
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{
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$draw = $this->getTestObject();
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$fromEnum = $draw->getAlpha(1.0, BlendMode::Multiply);
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$this->assertSame($fromEnum, $draw->getAlpha(1.0, 'Multiply'));
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$this->assertSame($fromEnum, $draw->getAlpha(1.0, '/Multiply'));
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$this->assertNotSame($fromEnum, $draw->getAlpha(1.0, BlendMode::Screen));
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// unknown blend mode falls back to Normal
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$this->assertSame($draw->getAlpha(1.0, 'Normal'), $draw->getAlpha(1.0, 'bogus'));
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}
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}
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