val base = parse("http://host/a/b/c")
    assertFailsWith<IllegalArgumentException> {
      base.newBuilder().setPathSegment(0, ".")
    }
  }

  @Test
  fun setPathSegmentRejectsDotDot() {
    val base = parse("http://host/a/b/c")
    assertFailsWith<IllegalArgumentException> {
      base.newBuilder().setPathSegment(0, "..")
    }
  }

  @Test