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<?php
namespace Dompdf\Tests;
use Dompdf\Helpers;
use Dompdf\Tests\TestCase;
class HelpersTest extends TestCase
{
public function testParseDataUriBase64Image(): void
{
$imageParts = [
'mime' => 'data:image/png;base64,',
'data' => 'iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg=='
];
$result = Helpers::parse_data_uri(implode('', $imageParts));
$this->assertEquals(
$result['data'],
base64_decode($imageParts['data'])
);
}
public function dec2RomanProvider(): array
{
return [
[-5, "-5"],
[0, "0"],
[1, "i"],
[5, "v"],
[3999, "mmmcmxcix"],
[4000, "4000"],
[50000, "50000"],
];
}
/**
* @dataProvider dec2RomanProvider
*/
public function testDec2Roman($number, string $expected): void
{
$roman = Helpers::dec2roman($number);
$this->assertSame($expected, $roman);
}
public function lengthEqualProvider(): array
{
// Adapted from
// https://floating-point-gui.de/errors/NearlyEqualsTest.java
return [
[0.0, 0.3 - 0.2 - 0.1, true],
[0.3, 0.1 + 0.1 + 0.1, true],
// Large numbers
[100000000.0, 100000001.0, true],
[100000.0001, 100000.0002, true],
[100000.01, 100000.02, false],
[1000.0001, 1000.0002, false],
// Numbers around 1
[1.000000001, 1.000000002, true],
[1.0000001, 1.0000002, false],
// Numbers between 1 and 0
[0.00000010000001, 0.00000010000002, true],
[0.00000000001001, 0.00000000001002, true],
[0.000000100001, 0.000000100002, false],
// Close to zero
[0.0, 0.0, true],
[0.0, -0.0, true],
[1e-38, 1e-37, true],
[1e-38, -1e-37, true],
[1e-38, 0.0, true],
[1e-13, 1e-38, true],
[1e-13, 0.0, true],
[1e-13, -1e-13, true],
[1e-12, -1e-12, false],
[1e-12, 0.0, false],
// Very large numbers
[1e38, 1e38, true],
[1e38, 1.000001e38, false],
// Infinity and NaN
[INF, INF, true],
[INF, -INF, false],
[INF, 1e38, false],
[NAN, NAN, false],
[NAN, 0.0, false],
];
}
/**
* @dataProvider lengthEqualProvider
*/
public function testLengthEqual(float $a, float $b, bool $expected): void
{
$this->assertSame($expected, Helpers::lengthEqual($a, $b));
$this->assertSame($expected, Helpers::lengthEqual($b, $a));
$this->assertSame($expected, Helpers::lengthEqual(-$a, -$b));
$this->assertSame($expected, Helpers::lengthEqual(-$b, -$a));
}
public function testCustomProtocolParsing(): void
{
$uri = "mock://path/to/resource";
$this->assertSame($uri, Helpers::build_url("", "", "", $uri));
}
}
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