* 80..95 : Offset by a fixed positive offset. The bottom 4 bits of b1 are the top 4 bits of the offset.
 *    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].
 *    123 : Mapped inline to the sequence: [b2a].
 *    124 : Mapped inline to the sequence: [b2, b3].

  data class Constant(
    override val rangeStart: Int,
    val type: Int,
  ) : MappedRange {
    val b1: Int
      get() =
        when (type) {
          TYPE_IGNORED -> 119
          TYPE_VALID -> 120
          TYPE_DISALLOWED -> 121
          else -> error("unexpected type: $type")
        }
  }

  data class Inline1(
    override val rangeStart: Int,
    private val mappedTo: ByteString,
  ) : MappedRange {

      MockResponse.Builder()
        .addHeader("Last-Modified: " + formatDate(-120, TimeUnit.SECONDS))
        .addHeader("Cache-Control: max-age=60")
        .build(),
    )
  }

  @Test
  fun maxAgeInTheFutureWithDateAndLastModifiedHeaders() {
    assertFullyCached(
      MockResponse.Builder()
        .addHeader("Last-Modified: " + formatDate(-120, TimeUnit.SECONDS))
        .addHeader("Date: " + formatDate(0, TimeUnit.SECONDS))

      removeEntry(entry)
    }
    mostRecentTrimFailed = false
  }

  private fun validateKey(key: String) {
    require(LEGAL_KEY_PATTERN.matches(key)) { "keys must match regex [a-z0-9_-]{1,120}: \"$key\"" }
  }

  /**
   * Returns an iterator over the cache's current entries. This iterator doesn't throw
   * `ConcurrentModificationException`, but if new entries are added while iterating, those new

    }.also { expected ->
      assertThat(expected.message).isEqualTo("keys must match regex [a-z0-9_-]{1,120}: \"$key\"")
    }
    assertFailsWith<IllegalArgumentException> {
      key = "has_CR\r"
      cache.edit(key)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("keys must match regex [a-z0-9_-]{1,120}: \"$key\"")
    }
    assertFailsWith<IllegalArgumentException> {
      key = "has_LF\n"