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Filename : EnumMapTest.php
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<?php
declare(strict_types = 1);

namespace DASPRiD\EnumTest;

use DASPRiD\Enum\EnumMap;
use DASPRiD\Enum\Exception\ExpectationException;
use DASPRiD\Enum\Exception\IllegalArgumentException;
use PHPUnit\Framework\TestCase;
use stdClass;

final class EnumMapTest extends TestCase
{
    public function testConstructionWithInvalidEnumType() : void
    {
        $this->expectException(IllegalArgumentException::class);
        new EnumMap(stdClass::class, 'string', false);
    }

    public function testUnexpectedKeyType() : void
    {
        $this->expectException(ExpectationException::class);
        $map = new EnumMap(WeekDay::class, 'string', false);
        $map->expect(Planet::class, 'string', false);
    }

    public function testUnexpectedValueType() : void
    {
        $this->expectException(ExpectationException::class);
        $map = new EnumMap(WeekDay::class, 'string', false);
        $map->expect(WeekDay::class, 'int', false);
    }

    public function testUnexpectedNullableValueType() : void
    {
        $this->expectException(ExpectationException::class);
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->expect(WeekDay::class, 'string', false);
    }

    public function testExpectedTypes() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->expect(WeekDay::class, 'string', true);
        $this->addToAssertionCount(1);
    }

    public function testSize() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $this->assertSame(0, $map->size());
        $map->put(WeekDay::MONDAY(), 'foo');
        $this->assertSame(1, $map->size());
    }

    public function testContainsValue() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $this->assertFalse($map->containsValue('foo'));
        $map->put(WeekDay::TUESDAY(), 'foo');
        $this->assertTrue($map->containsValue('foo'));
        $this->assertFalse($map->containsValue(null));
        $map->put(WeekDay::WEDNESDAY(), null);
        $this->assertTrue($map->containsValue(null));
    }

    public function testContainsKey() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $this->assertFalse($map->containsKey(WeekDay::TUESDAY()));
        $map->put(WeekDay::TUESDAY(), 'foo');
        $this->assertTrue($map->containsKey(WeekDay::TUESDAY()));
        $map->put(WeekDay::WEDNESDAY(), null);
        $this->assertTrue($map->containsKey(WeekDay::WEDNESDAY()));
    }

    public function testPutAndGet() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->put(WeekDay::TUESDAY(), 'foo');
        $map->put(WeekDay::FRIDAY(), null);
        $this->assertSame('foo', $map->get(WeekDay::TUESDAY()));
        $this->assertSame(null, $map->get(WeekDay::WEDNESDAY()));
        $this->assertSame(null, $map->get(WeekDay::FRIDAY()));
    }

    public function testPutInvalidKey() : void
    {
        $this->expectException(IllegalArgumentException::class);
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->put(Planet::MARS(), 'foo');
    }

    public function invalidValues() : array
    {
        return [
            ['bool', null, false],
            ['bool', 0],
            ['boolean', 0],
            ['int', 2.4],
            ['integer', 5.3],
            ['float', 3],
            ['double', 7],
            ['string', 1],
            ['object', 1],
            ['array', 1],
            [stdClass::class, 1],
        ];
    }

    /**
     * @dataProvider invalidValues
     * @param mixed $value
     */
    public function testPutInvalidValue(string $valueType, $value, bool $allowNull = true) : void
    {
        $this->expectException(IllegalArgumentException::class);
        $map = new EnumMap(WeekDay::class, $valueType, $allowNull);
        $map->put(WeekDay::TUESDAY(), $value);
    }

    public function validValues() : array
    {
        return [
            ['bool', null],
            ['mixed', 'foo'],
            ['mixed', 1],
            ['mixed', new stdClass()],
            ['bool', true],
            ['boolean', false],
            ['int', 1],
            ['integer', 4],
            ['float', 2.5],
            ['double', 6.4],
            ['string', 'foo'],
            ['object', new stdClass()],
            ['array', ['foo']],
            [stdClass::class, new stdClass()],
        ];
    }

    /**
     * @dataProvider validValues
     * @param mixed $value
     */
    public function testPutValidValue(string $valueType, $value, bool $allowNull = true) : void
    {
        $map = new EnumMap(WeekDay::class, $valueType, $allowNull);
        $map->put(WeekDay::TUESDAY(), $value);
        $this->addToAssertionCount(1);
    }

    public function testRemove() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->put(WeekDay::TUESDAY(), 'foo');
        $map->remove(WeekDay::TUESDAY());
        $map->remove(WeekDay::WEDNESDAY());
        $this->assertSame(null, $map->get(WeekDay::TUESDAY()));
        $this->assertSame(0, $map->size());
    }

    public function testClear() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->put(WeekDay::TUESDAY(), 'foo');
        $map->clear();
        $this->assertSame(null, $map->get(WeekDay::TUESDAY()));
        $this->assertSame(0, $map->size());
    }

    public function testEqualsWithSameInstance() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $this->assertTrue($map->equals($map));
    }

    public function testEqualsWithDifferentSize() : void
    {
        $mapA = new EnumMap(WeekDay::class, 'string', true);
        $mapB = new EnumMap(WeekDay::class, 'string', true);
        $mapB->put(WeekDay::MONDAY(), 'foo');

        $this->assertFalse($mapA->equals($mapB));
    }

    public function testEqualsWithDifferentValues() : void
    {
        $mapA = new EnumMap(WeekDay::class, 'string', true);
        $mapA->put(WeekDay::MONDAY(), 'foo');
        $mapB = new EnumMap(WeekDay::class, 'string', true);
        $mapB->put(WeekDay::MONDAY(), 'bar');

        $this->assertFalse($mapA->equals($mapB));
    }

    public function testEqualsWithDifferentConstants() : void
    {
        $mapA = new EnumMap(WeekDay::class, 'string', true);
        $mapA->put(WeekDay::MONDAY(), 'foo');
        $mapB = new EnumMap(WeekDay::class, 'string', true);
        $mapB->put(WeekDay::TUESDAY(), 'foo');

        $this->assertFalse($mapA->equals($mapB));
    }

    public function testValues() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $this->assertSame([], $map->values());

        $map->put(WeekDay::FRIDAY(), 'foo');
        $map->put(WeekDay::TUESDAY(), 'bar');
        $map->put(WeekDay::SUNDAY(), null);

        $this->assertSame(['bar', 'foo', null], $map->values());
    }

    public function testSerializeAndUnserialize() : void
    {
        $mapA = new EnumMap(WeekDay::class, 'string', true);
        $mapA->put(WeekDay::MONDAY(), 'foo');
        $mapB = unserialize(serialize($mapA));

        $this->assertTrue($mapA->equals($mapB));
    }

    public function testIterator() : void
    {
        $map = new EnumMap(WeekDay::class, 'string', true);
        $map->put(WeekDay::FRIDAY(), 'foo');
        $map->put(WeekDay::TUESDAY(), 'bar');
        $map->put(WeekDay::SUNDAY(), null);

        $result = [];

        foreach ($map as $key => $value) {
            $result[$key->ordinal()] = $value;
        }

        $this->assertSame([1 => 'bar', 4 => 'foo', 6 => null], $result);
    }
}