MockResponse.Builder()
          .addHeader("Last-Modified: $lastModifiedDate")
          .addHeader("Date: " + formatDate(-15, TimeUnit.SECONDS))
          .build(),
      )
    assertThat(conditionalRequest.headers["If-Modified-Since"])
      .isEqualTo(lastModifiedDate)
  }

  @Test
  fun defaultExpirationDateFullyCachedForMoreThan24Hours() {
    //      last modified: 105 days ago
    //             served:   5 days ago