", kTreeSizes[0], &query),               IsError(net::ERR_INVALID_ARGUMENT)); }  TEST_P(LogDnsClientTest, QueryAuditProofReportsInvalidArgIfLeafHashIsEmpty) {   std::unique_ptr<LogDnsClient::AuditProofQuery> query;   ASSERT_THAT(QueryAuditProof("ct.test", "", kTreeSizes[0], &query),               IsError(net::ERR_INVALID_ARGUMENT)); }  TEST_P(LogDnsClientTest,        QueryAuditProofReportsSocketErrorsDuringLeafIndexRequests) {   ASSERT_TRUE(mock_dns_.ExpectRequestAndSocketError(       