Mongolid\SchemaTest::testShouldCastDocumentTimestamps PHP Method

    public function testShouldCastDocumentTimestamps()
    {
        // Arrange
        $schema = m::mock(Schema::class . '[]');
        $value = null;
        // Assertion
        $this->assertInstanceOf(UTCDateTime::class, $schema->createdAtTimestamp($value));
    }