assertThat(response.header("Alpha")).isEqualTo("α")
    assertThat(response.header("β")).isEqualTo("Beta")
  }

  @ParameterizedTest
  @ArgumentsSource(ProtocolParamProvider::class)
  fun serverSendsPushPromise_GET(protocol: Protocol) {
    setUp(protocol)
    val pushPromise =
      PushPromise(
        "GET",
        "/foo/bar",
        headersOf("foo", "bar"),
        MockResponse(body = "bar"),