createNewCache()
    assertGarbageFilesAllDeleted()
  }

  @Test
  fun openWithInvalidJournalLineClearsDirectory() {
    cache.close()
    generateSomeGarbageFiles()
    createJournal("CLEAN k1 1 1", "BOGUS")
    createNewCache()
    assertGarbageFilesAllDeleted()
    assertThat(cache["k1"]).isNull()
  }

  @Test
  fun openWithInvalidFileSizeClearsDirectory() {
    cache.close()

  @Test fun bogusDataFrameDoesNotDisruptConnection() {
    // Write the mocking script.
    peer.sendFrame().settings(Settings())
    peer.acceptFrame() // ACK
    peer.sendFrame().data(true, 41, Buffer().writeUtf8("bogus"), 5)
    peer.acceptFrame() // RST_STREAM
    peer.sendFrame().ping(false, 2, 0)
    peer.acceptFrame() // PING
    peer.play()

    // Play it back.
    connect(peer)

  EXPECT_EQ(attr_value.type(), tensorflow::DT_INT32);

  // Test not found errors in TF_Operation*() query functions.
  EXPECT_EQ(-1, TF_OperationOutputListLength(feed, "bogus", s));
  EXPECT_EQ(TF_INVALID_ARGUMENT, TF_GetCode(s));

  ASSERT_FALSE(GetAttrValue(feed, "missing", &attr_value, s));
  EXPECT_EQ(string("Operation 'feed' has no attr named 'missing'."),