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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\Constraint;
use PHPUnit\Framework\ExpectationFailedException;
use PHPUnit\Framework\TestFailure;
/**
* @small
*/
final class IsJsonTest extends ConstraintTestCase
{
public static function evaluateDataprovider(): array
{
return [
'valid JSON' => [true, '{}'],
'empty string should be treated as invalid JSON' => [false, ''],
];
}
/**
* @testdox Evaluate $_dataName
* @dataProvider evaluateDataprovider
*
* @throws \PHPUnit\Framework\ExpectationFailedException
* @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
*/
public function testEvaluate($expected, $jsonOther): void
{
$constraint = new IsJson;
$this->assertEquals($expected, $constraint->evaluate($jsonOther, '', true));
}
public function testIsJsonCanBeExportedAsString(): void
{
$isJson = new IsJson;
$this->assertSame('is valid JSON', $isJson->toString());
}
public function testIsJsonCanBeEmptyString(): void
{
$isJson = new IsJson;
try {
$isJson->evaluate('');
} catch (ExpectationFailedException $e) {
$this->assertEquals(
<<<'EOF'
Failed asserting that an empty string is valid JSON.
EOF
,
TestFailure::exceptionToString($e)
);
}
}
}
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