InspectorTest.php

<?php


/**
 * @file
 * Contains \Drupal\Tests\Component\Assertion\InspectorTest.
 */
namespace Drupal\Tests\Component\Assertion;

use PHPUnit\Framework\TestCase;
use Drupal\Component\Assertion\Inspector;

/**
 * @coversDefaultClass \Drupal\Component\Assertion\Inspector
 * @group Assertion
 */
class InspectorTest extends TestCase {
    
    /**
     * Tests asserting argument is an array or traversable object.
     *
     * @covers ::assertTraversable
     */
    public function testAssertTraversable() {
        $this->assertTrue(Inspector::assertTraversable([]));
        $this->assertTrue(Inspector::assertTraversable(new \ArrayObject()));
        $this->assertFalse(Inspector::assertTraversable(new \stdClass()));
        $this->assertFalse(Inspector::assertTraversable('foo'));
    }
    
    /**
     * Tests asserting all members are strings.
     *
     * @covers ::assertAllStrings
     * @dataProvider providerTestAssertAllStrings
     */
    public function testAssertAllStrings($input, $expected) {
        $this->assertSame($expected, Inspector::assertAllStrings($input));
    }
    public function providerTestAssertAllStrings() {
        $data = [
            'empty-array' => [
                [],
                TRUE,
            ],
            'array-with-strings' => [
                [
                    'foo',
                    'bar',
                ],
                TRUE,
            ],
            'string' => [
                'foo',
                FALSE,
            ],
            'array-with-strings-with-colon' => [
                [
                    'foo',
                    'bar',
                    'llama:2001988',
                    'baz',
                    'llama:14031991',
                ],
                TRUE,
            ],
            'with-FALSE' => [
                [
                    FALSE,
                ],
                FALSE,
            ],
            'with-TRUE' => [
                [
                    TRUE,
                ],
                FALSE,
            ],
            'with-string-and-boolean' => [
                [
                    'foo',
                    FALSE,
                ],
                FALSE,
            ],
            'with-NULL' => [
                [
                    NULL,
                ],
                FALSE,
            ],
            'string-with-NULL' => [
                [
                    'foo',
                    NULL,
                ],
                FALSE,
            ],
            'integer' => [
                [
                    1337,
                ],
                FALSE,
            ],
            'string-and-integer' => [
                [
                    'foo',
                    1337,
                ],
                FALSE,
            ],
            'double' => [
                [
                    3.14,
                ],
                FALSE,
            ],
            'string-and-double' => [
                [
                    'foo',
                    3.14,
                ],
                FALSE,
            ],
            'array' => [
                [
                    [],
                ],
                FALSE,
            ],
            'string-and-array' => [
                [
                    'foo',
                    [],
                ],
                FALSE,
            ],
            'string-and-nested-array' => [
                [
                    'foo',
                    [
                        'bar',
                    ],
                ],
                FALSE,
            ],
            'object' => [
                [
                    new \stdClass(),
                ],
                FALSE,
            ],
            'string-and-object' => [
                [
                    'foo',
                    new StringObject(),
                ],
                FALSE,
            ],
        ];
        return $data;
    }
    
    /**
     * Tests asserting all members are strings or objects with __toString().
     *
     * @covers ::assertAllStringable
     */
    public function testAssertAllStringable() {
        $this->assertTrue(Inspector::assertAllStringable([]));
        $this->assertTrue(Inspector::assertAllStringable([
            'foo',
            'bar',
        ]));
        $this->assertFalse(Inspector::assertAllStringable('foo'));
        $this->assertTrue(Inspector::assertAllStringable([
            'foo',
            new StringObject(),
        ]));
    }
    
    /**
     * Tests asserting all members are arrays.
     *
     * @covers ::assertAllArrays
     */
    public function testAssertAllArrays() {
        $this->assertTrue(Inspector::assertAllArrays([]));
        $this->assertTrue(Inspector::assertAllArrays([
            [],
            [],
        ]));
        $this->assertFalse(Inspector::assertAllArrays([
            [],
            'foo',
        ]));
    }
    
    /**
     * Tests asserting array is 0-indexed - the strict definition of array.
     *
     * @covers ::assertStrictArray
     */
    public function testAssertStrictArray() {
        $this->assertTrue(Inspector::assertStrictArray([]));
        $this->assertTrue(Inspector::assertStrictArray([
            'bar',
            'foo',
        ]));
        $this->assertFalse(Inspector::assertStrictArray([
            'foo' => 'bar',
            'bar' => 'foo',
        ]));
    }
    
    /**
     * Tests asserting all members are strict arrays.
     *
     * @covers ::assertAllStrictArrays
     */
    public function testAssertAllStrictArrays() {
        $this->assertTrue(Inspector::assertAllStrictArrays([]));
        $this->assertTrue(Inspector::assertAllStrictArrays([
            [],
            [],
        ]));
        $this->assertFalse(Inspector::assertAllStrictArrays([
            [
                'foo' => 'bar',
                'bar' => 'foo',
            ],
        ]));
    }
    
    /**
     * Tests asserting all members have specified keys.
     *
     * @covers ::assertAllHaveKey
     */
    public function testAssertAllHaveKey() {
        $this->assertTrue(Inspector::assertAllHaveKey([]));
        $this->assertTrue(Inspector::assertAllHaveKey([
            [
                'foo' => 'bar',
                'bar' => 'foo',
            ],
        ]));
        $this->assertTrue(Inspector::assertAllHaveKey([
            [
                'foo' => 'bar',
                'bar' => 'foo',
            ],
        ], 'foo'));
        $this->assertTrue(Inspector::assertAllHaveKey([
            [
                'foo' => 'bar',
                'bar' => 'foo',
            ],
        ], 'bar', 'foo'));
        $this->assertFalse(Inspector::assertAllHaveKey([
            [
                'foo' => 'bar',
                'bar' => 'foo',
            ],
        ], 'bar', 'foo', 'moo'));
    }
    
    /**
     * Tests asserting all members are integers.
     *
     * @covers ::assertAllIntegers
     */
    public function testAssertAllIntegers() {
        $this->assertTrue(Inspector::assertAllIntegers([]));
        $this->assertTrue(Inspector::assertAllIntegers([
            1,
            2,
            3,
        ]));
        $this->assertFalse(Inspector::assertAllIntegers([
            1,
            2,
            3.14,
        ]));
        $this->assertFalse(Inspector::assertAllIntegers([
            1,
            '2',
            3,
        ]));
    }
    
    /**
     * Tests asserting all members are floating point variables.
     *
     * @covers ::assertAllFloat
     */
    public function testAssertAllFloat() {
        $this->assertTrue(Inspector::assertAllFloat([]));
        $this->assertTrue(Inspector::assertAllFloat([
            1.0,
            2.1,
            3.14,
        ]));
        $this->assertFalse(Inspector::assertAllFloat([
            1,
            2.1,
            3.14,
        ]));
        $this->assertFalse(Inspector::assertAllFloat([
            1.0,
            '2',
            3,
        ]));
        $this->assertFalse(Inspector::assertAllFloat([
            'Titanic',
        ]));
    }
    
    /**
     * Tests asserting all members are callable.
     *
     * @covers ::assertAllCallable
     */
    public function testAllCallable() {
        $this->assertTrue(Inspector::assertAllCallable([
            'strchr',
            [
                $this,
                'callMe',
            ],
            [
                __CLASS__,
                'callMeStatic',
            ],
            function () {
                return TRUE;
            },
        ]));
        $this->assertFalse(Inspector::assertAllCallable([
            'strchr',
            [
                $this,
                'callMe',
            ],
            [
                __CLASS__,
                'callMeStatic',
            ],
            function () {
                return TRUE;
            },
            "I'm not callable",
        ]));
    }
    
    /**
     * Tests asserting all members are !empty().
     *
     * @covers ::assertAllNotEmpty
     */
    public function testAllNotEmpty() {
        $this->assertTrue(Inspector::assertAllNotEmpty([
            1,
            'two',
        ]));
        $this->assertFalse(Inspector::assertAllNotEmpty([
            '',
        ]));
    }
    
    /**
     * Tests asserting all arguments are numbers or strings castable to numbers.
     *
     * @covers ::assertAllNumeric
     */
    public function testAssertAllNumeric() {
        $this->assertTrue(Inspector::assertAllNumeric([
            1,
            '2',
            3.14,
        ]));
        $this->assertFalse(Inspector::assertAllNumeric([
            1,
            'two',
            3.14,
        ]));
    }
    
    /**
     * Tests asserting strstr() or stristr() match.
     *
     * @covers ::assertAllMatch
     */
    public function testAssertAllMatch() {
        $this->assertTrue(Inspector::assertAllMatch('f', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertTrue(Inspector::assertAllMatch('F', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertTrue(Inspector::assertAllMatch('f', [
            'fee',
            'fi',
            'fo',
        ], TRUE));
        $this->assertFalse(Inspector::assertAllMatch('F', [
            'fee',
            'fi',
            'fo',
        ], TRUE));
        $this->assertFalse(Inspector::assertAllMatch('e', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertFalse(Inspector::assertAllMatch('1', [
            12,
        ]));
    }
    
    /**
     * Tests asserting regular expression match.
     *
     * @covers ::assertAllRegularExpressionMatch
     */
    public function testAssertAllRegularExpressionMatch() {
        $this->assertTrue(Inspector::assertAllRegularExpressionMatch('/f/i', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertTrue(Inspector::assertAllRegularExpressionMatch('/F/i', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertTrue(Inspector::assertAllRegularExpressionMatch('/f/', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertFalse(Inspector::assertAllRegularExpressionMatch('/F/', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertFalse(Inspector::assertAllRegularExpressionMatch('/e/', [
            'fee',
            'fi',
            'fo',
        ]));
        $this->assertFalse(Inspector::assertAllRegularExpressionMatch('/1/', [
            12,
        ]));
    }
    
    /**
     * Tests asserting all members are objects.
     *
     * @covers ::assertAllObjects
     */
    public function testAssertAllObjects() {
        $this->assertTrue(Inspector::assertAllObjects([
            new \ArrayObject(),
            new \ArrayObject(),
        ]));
        $this->assertFalse(Inspector::assertAllObjects([
            new \ArrayObject(),
            new \ArrayObject(),
            'foo',
        ]));
        $this->assertTrue(Inspector::assertAllObjects([
            new \ArrayObject(),
            new \ArrayObject(),
        ], '\\Traversable'));
        $this->assertFalse(Inspector::assertAllObjects([
            new \ArrayObject(),
            new \ArrayObject(),
            'foo',
        ], '\\Traversable'));
        $this->assertFalse(Inspector::assertAllObjects([
            new \ArrayObject(),
            new StringObject(),
        ], '\\Traversable'));
        $this->assertTrue(Inspector::assertAllObjects([
            new \ArrayObject(),
            new StringObject(),
        ], '\\Traversable', '\\Drupal\\Tests\\Component\\Assertion\\StringObject'));
        $this->assertFalse(Inspector::assertAllObjects([
            new \ArrayObject(),
            new StringObject(),
            new \stdClass(),
        ], '\\ArrayObject', '\\Drupal\\Tests\\Component\\Assertion\\StringObject'));
    }
    
    /**
     * Test method referenced by ::testAllCallable().
     */
    public function callMe() {
        return TRUE;
    }
    
    /**
     * Test method referenced by ::testAllCallable().
     */
    public static function callMeStatic() {
        return TRUE;
    }

}

/**
 * Quick class for testing for objects with __toString.
 */
class StringObject {
    
    /**
     * {@inheritdoc}
     */
    public function __toString() {
        return 'foo';
    }

}