/**
* keys of request headers should be are case insensitive
*/
public function testRequestHeaders()
{
$headers = $this->context->getRequestHeaders();
$key1 = 'test1';
$key2 = 'test2';
$value1 = 'value1';
$value2 = 'value2';
$this->assertFalse($headers->has($key1));
$this->assertFalse(isset($headers[$key1]));
$this->assertNull($headers->get($key1));
$this->assertNull($headers[$key1]);
$headers->set($key1, $value1);
$this->assertTrue($headers->has($key1));
$this->assertTrue(isset($headers[$key1]));
$this->assertEquals($value1, $headers->get($key1));
$this->assertEquals($value1, $headers[$key1]);
$this->assertTrue($headers->has(strtoupper($key1)));
$this->assertTrue(isset($headers[strtoupper($key1)]));
$this->assertEquals($value1, $headers->get(strtoupper($key1)));
$this->assertEquals($value1, $headers[strtoupper($key1)]);
$headers->remove(strtoupper($key1));
$this->assertFalse($headers->has($key1));
$this->assertFalse(isset($headers[$key1]));
$this->assertNull($headers->get($key1));
$this->assertNull($headers[$key1]);
$headers[strtoupper($key2)] = $value2;
$this->assertTrue($headers->has($key2));
$this->assertTrue(isset($headers[$key2]));
$this->assertEquals($value2, $headers->get($key2));
$this->assertEquals($value2, $headers[$key2]);
unset($headers[$key2]);
$this->assertFalse($headers->has(strtoupper($key2)));
$this->assertFalse(isset($headers[strtoupper($key2)]));
$this->assertNull($headers->get(strtoupper($key2)));
$this->assertNull($headers[strtoupper($key2)]);
$headers->set(strtoupper($key1), null);
$this->assertTrue($headers->has($key1));
$this->assertTrue(isset($headers[$key1]));
$this->assertNull($headers->get($key1));
$this->assertNull($headers[$key1]);
$this->assertEquals(1, count($headers));
$this->assertEquals([$key1 => null], $headers->toArray());
$headers->clear();
$this->assertEquals(0, count($headers));
}
