Cache loading update (#1254)

Fix #1199

unittests/etl/CursorFromAccountProviderTests.cpp

@@ -0,0 +1,68 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of clio: https://github.com/XRPLF/clio
+    Copyright (c) 2024, the clio developers.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL,  DIRECT,  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include "data/Types.hpp"
+#include "etl/impl/CursorFromAccountProvider.hpp"
+#include "util/Fixtures.hpp"
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <ripple/basics/base_uint.h>
+
+#include <vector>
+
+using namespace etl;
+using namespace util;
+using namespace data;
+using namespace testing;
+
+namespace {
+
+constexpr auto SEQ = 30;
+
+std::vector<ripple::uint256> const ACCOUNTROOTS = {
+    ripple::uint256{"05E1EAC2574BE082B00B16F907CE32E6058DEB8F9E81CF34A00E80A5D71FA4FE"},
+    ripple::uint256{"110872C7196EE6EF7032952F1852B11BB461A96FF2D7E06A8003B4BB30FD130B"},
+    ripple::uint256{"3B3A84E850C724E914293271785A31D0BFC8B9DD1B6332E527B149AD72E80E18"},
+    ripple::uint256{"4EC98C5C3F34C44409BC058998CBD64F6AED3FF6C0CAAEC15F7F42DF14EE9F04"},
+    ripple::uint256{"58CEC9F17733EA7BA68C88E6179B8F207D001EE04D4E0366F958CC04FF6AB834"},
+    ripple::uint256{"64FB1712146BA604C274CC335C5DE7ADFE52D1F8C3E904A9F9765FE8158A3E01"},
+    ripple::uint256{"700BE23B1D9EE3E6BF52543D05843D5345B85D9EDB3D33BBD6B4C3A13C54B38E"},
+    ripple::uint256{"82C297FCBCD634C4424F263D17480AA2F13975DF5846A5BB57246022CEEBE441"},
+    ripple::uint256{"A2AA4C212DC2CA2C49BF58805F7C63363BC981018A01AC9609A7CBAB2A02CEDF"},
+};
+
+struct CursorFromAccountProviderTests : MockBackendTestNaggy {};
+}  // namespace
+
+TEST_F(CursorFromAccountProviderTests, EnoughAccountRoots)
+{
+    auto const numCursors = 9;
+    auto const pageSize = 100;
+    auto const provider = etl::impl::CursorFromAccountProvider{backend, numCursors, pageSize};
+
+    ON_CALL(*backend, fetchAccountRoots(numCursors, _, SEQ, _)).WillByDefault(Return(ACCOUNTROOTS));
+    EXPECT_CALL(*backend, fetchAccountRoots(_, _, _, _)).Times(1);
+
+    auto const cursors = provider.getCursors(SEQ);
+    ASSERT_EQ(cursors.size(), numCursors + 1);
+
+    EXPECT_EQ(cursors.front().start, firstKey);
+    EXPECT_EQ(cursors.back().end, lastKey);
+}