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https://github.com/danog/endtoend-test-psl.git
synced 2024-12-02 09:38:32 +01:00
31 lines
700 B
PHP
31 lines
700 B
PHP
<?php
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declare(strict_types=1);
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namespace Psl\Tests\Str;
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use PHPUnit\Framework\TestCase;
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use Psl\Str;
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class IsStringTest extends TestCase
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{
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public function testIsEmpty(): void
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{
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self::assertTrue(Str\is_string(''));
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self::assertTrue(Str\is_string(Str\chr(0)));
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self::assertFalse(Str\is_string(5));
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self::assertFalse(Str\is_string(5.0));
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self::assertFalse(Str\is_string(true));
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self::assertFalse(Str\is_string(null));
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self::assertFalse(Str\is_string(
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new class {
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public function __toString(): string
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{
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return 'hello';
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}
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}
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));
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}
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}
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