/**
  * @test
  *
  * @return void
  */
 public function adminGetCharsetsReturnsArrayWithCharsets()
 {
     $columnsRes = $this->subject->admin_query('SHOW CHARACTER SET');
     $result = $this->subject->admin_get_charsets();
     $this->assertEquals(count($result), $columnsRes->num_rows);
     /** @var array $row */
     while ($row = $columnsRes->fetch_assoc()) {
         $this->assertArrayHasKey($row['Charset'], $result);
     }
 }