<?php
/*
* This file is part of sebastian/comparator.
*
* (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 SebastianBergmann\Comparator;

use PHPUnit\Framework\TestCase;

/**
* @coversDefaultClass SebastianBergmann\Comparator\ArrayComparator
*
* @uses SebastianBergmann\Comparator\Comparator
* @uses SebastianBergmann\Comparator\Factory
* @uses SebastianBergmann\Comparator\ComparisonFailure
*/
class ArrayComparatorTest extends TestCase
{
/**
* @var ArrayComparator
*/
private $comparator;

protected function setUp()
{
$this->comparator = new ArrayComparator;
$this->comparator->setFactory(new Factory);
}

public function acceptsFailsProvider()
{
return [
[[], null],
[null, []],
[null, null]
];
}

public function assertEqualsSucceedsProvider()
{
return [
[
['a' => 1, 'b' => 2],
['b' => 2, 'a' => 1]
],
[
[1],
['1']
],
[
[3, 2, 1],
[2, 3, 1],
0,
true
],
[
[2.3],
[2.5],
0.5
],
[
[[2.3]],
[[2.5]],
0.5
],
[
[new Struct(2.3)],
[new Struct(2.5)],
0.5
],
];
}

public function assertEqualsFailsProvider()
{
return [
[
[],
[0 => 1]
],
[
[0 => 1],
[]
],
[
[0 => null],
[]
],
[
[0 => 1, 1 => 2],
[0 => 1, 1 => 3]
],
[
['a', 'b' => [1, 2]],
['a', 'b' => [2, 1]]
],
[
[2.3],
[4.2],
0.5
],
[
[[2.3]],
[[4.2]],
0.5
],
[
[new Struct(2.3)],
[new Struct(4.2)],
0.5
]
];
}

/**
* @covers ::accepts
*/
public function testAcceptsSucceeds()
{
$this->assertTrue(
$this->comparator->accepts([], [])
);
}

/**
* @covers ::accepts
* @dataProvider acceptsFailsProvider
*/
public function testAcceptsFails($expected, $actual)
{
$this->assertFalse(
$this->comparator->accepts($expected, $actual)
);
}

/**
* @covers ::assertEquals
* @dataProvider assertEqualsSucceedsProvider
*/
public function testAssertEqualsSucceeds($expected, $actual, $delta = 0.0, $canonicalize = false)
{
$exception = null;

try {
$this->comparator->assertEquals($expected, $actual, $delta, $canonicalize);
} catch (ComparisonFailure $exception) {
}

$this->assertNull($exception, 'Unexpected ComparisonFailure');
}

/**
* @covers ::assertEquals
* @dataProvider assertEqualsFailsProvider
*/
public function testAssertEqualsFails($expected, $actual, $delta = 0.0, $canonicalize = false)
{
$this->expectException(ComparisonFailure::class);
$this->expectExceptionMessage('Failed asserting that two arrays are equal');

$this->comparator->assertEquals($expected, $actual, $delta, $canonicalize);
}
}