val expectedRequestHeaders =
      listOf(
        Header(Header.TARGET_METHOD, "GET"),
        Header(Header.TARGET_SCHEME, "https"),
        Header(Header.TARGET_AUTHORITY, "squareup.com"),
        Header(Header.TARGET_PATH, "/cached"),
      )
    peer.sendFrame().pushPromise(3, 2, expectedRequestHeaders)
    val expectedResponseHeaders =
      listOf(
        Header(Header.RESPONSE_STATUS, "200"),
      )