Ledgerdata (#596)

Fixes #600
2025-11-21 12:15:54 +00:00 · 2023-04-24 09:00:10 +01:00
parent 93e2ac529d
commit 88e25687dc
4 changed files with 795 additions and 0 deletions
--- a/unittests/rpc/handlers/LedgerDataTest.cpp
+++ b/unittests/rpc/handlers/LedgerDataTest.cpp
@@ -0,0 +1,477 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of clio: https://github.com/XRPLF/clio
+    Copyright (c) 2023, 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 <rpc/common/AnyHandler.h>
+#include <rpc/ngHandlers/LedgerData.h>
+#include <util/Fixtures.h>
+#include <util/TestObject.h>
+
+#include <fmt/core.h>
+
+using namespace RPCng;
+namespace json = boost::json;
+using namespace testing;
+
+constexpr static auto RANGEMIN = 10;
+constexpr static auto RANGEMAX = 30;
+constexpr static auto ACCOUNT = "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn";
+constexpr static auto ACCOUNT2 = "rLEsXccBGNR3UPuPu2hUXPjziKC3qKSBun";
+constexpr static auto LEDGERHASH = "4BC50C9B0D8515D3EAAE1E74B29A95804346C491EE1A95BF25E4AAB854A6A652";
+constexpr static auto INDEX1 = "05FB0EB4B899F056FA095537C5817163801F544BAFCEA39C995D76DB4D16F9DD";
+constexpr static auto INDEX2 = "E6DBAFC99223B42257915A63DFC6B0C032D4070F9A574B255AD97466726FC322";
+constexpr static auto TXNID = "05FB0EB4B899F056FA095537C5817163801F544BAFCEA39C995D76DB4D16F0DD";
+
+class RPCLedgerDataHandlerTest : public HandlerBaseTest
+{
+};
+
+struct LedgerDataParamTestCaseBundle
+{
+    std::string testName;
+    std::string testJson;
+    std::string expectedError;
+    std::string expectedErrorMessage;
+};
+
+// parameterized test cases for parameters check
+struct LedgerDataParameterTest : public RPCLedgerDataHandlerTest,
+                                 public WithParamInterface<LedgerDataParamTestCaseBundle>
+{
+    struct NameGenerator
+    {
+        template <class ParamType>
+        std::string
+        operator()(const testing::TestParamInfo<ParamType>& info) const
+        {
+            auto bundle = static_cast<LedgerDataParamTestCaseBundle>(info.param);
+            return bundle.testName;
+        }
+    };
+};
+
+static auto
+generateTestValuesForParametersTest()
+{
+    return std::vector<LedgerDataParamTestCaseBundle>{
+        LedgerDataParamTestCaseBundle{
+            "ledger_indexInvalid", R"({"ledger_index": "x"})", "invalidParams", "ledgerIndexMalformed"},
+        LedgerDataParamTestCaseBundle{
+            "ledger_hashInvalid", R"({"ledger_hash": "x"})", "invalidParams", "ledger_hashMalformed"},
+        LedgerDataParamTestCaseBundle{
+            "ledger_hashNotString", R"({"ledger_hash": 123})", "invalidParams", "ledger_hashNotString"},
+        LedgerDataParamTestCaseBundle{"binaryNotBool", R"({"binary": 123})", "invalidParams", "Invalid parameters."},
+        LedgerDataParamTestCaseBundle{"limitNotInt", R"({"limit": "xxx"})", "invalidParams", "Invalid parameters."},
+        LedgerDataParamTestCaseBundle{"markerInvalid", R"({"marker": "xxx"})", "invalidParams", "markerMalformed"},
+        LedgerDataParamTestCaseBundle{
+            "markerOutOfOrder",
+            R"({
+                "marker": "4BC50C9B0D8515D3EAAE1E74B29A95804346C491EE1A95BF25E4AAB854A6A652",
+                "out_of_order": true
+            })",
+            "invalidParams",
+            "outOfOrderMarkerNotInt"},
+        LedgerDataParamTestCaseBundle{"markerNotString", R"({"marker": 123})", "invalidParams", "markerNotString"},
+    };
+}
+
+INSTANTIATE_TEST_CASE_P(
+    RPCLedgerDataGroup1,
+    LedgerDataParameterTest,
+    ValuesIn(generateTestValuesForParametersTest()),
+    LedgerDataParameterTest::NameGenerator{});
+
+TEST_P(LedgerDataParameterTest, InvalidParams)
+{
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+    auto const testBundle = GetParam();
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(testBundle.testJson);
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_FALSE(output);
+        auto const err = RPC::makeError(output.error());
+        EXPECT_EQ(err.at("error").as_string(), testBundle.expectedError);
+        EXPECT_EQ(err.at("error_message").as_string(), testBundle.expectedErrorMessage);
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, LedgerNotExistViaIntSequence)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _)).WillByDefault(Return(std::nullopt));
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(fmt::format(
+            R"({{
+                "ledger_index": {}
+            }})",
+            RANGEMAX));
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_FALSE(output);
+        auto const err = RPC::makeError(output.error());
+        EXPECT_EQ(err.at("error").as_string(), "lgrNotFound");
+        EXPECT_EQ(err.at("error_message").as_string(), "ledgerNotFound");
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, LedgerNotExistViaStringSequence)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _)).WillByDefault(Return(std::nullopt));
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(fmt::format(
+            R"({{
+                "ledger_index": "{}"
+            }})",
+            RANGEMAX));
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_FALSE(output);
+        auto const err = RPC::makeError(output.error());
+        EXPECT_EQ(err.at("error").as_string(), "lgrNotFound");
+        EXPECT_EQ(err.at("error_message").as_string(), "ledgerNotFound");
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, LedgerNotExistViaHash)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerByHash).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerByHash(ripple::uint256{LEDGERHASH}, _)).WillByDefault(Return(std::nullopt));
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(fmt::format(
+            R"({{
+                "ledger_hash": "{}"
+            }})",
+            LEDGERHASH));
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_FALSE(output);
+        auto const err = RPC::makeError(output.error());
+        EXPECT_EQ(err.at("error").as_string(), "lgrNotFound");
+        EXPECT_EQ(err.at("error_message").as_string(), "ledgerNotFound");
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, MarkerNotExist)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _))
+        .WillByDefault(Return(CreateLedgerInfo(LEDGERHASH, RANGEMAX)));
+
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObject).Times(1);
+    ON_CALL(*rawBackendPtr, doFetchLedgerObject(ripple::uint256{INDEX1}, RANGEMAX, _))
+        .WillByDefault(Return(std::nullopt));
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(fmt::format(
+            R"({{
+                "marker": "{}"
+            }})",
+            INDEX1));
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_FALSE(output);
+        auto const err = RPC::makeError(output.error());
+        EXPECT_EQ(err.at("error").as_string(), "invalidParams");
+        EXPECT_EQ(err.at("error_message").as_string(), "markerDoesNotExist");
+    });
+}
+
+// no marker
+TEST_F(RPCLedgerDataHandlerTest, NoMarker)
+{
+    static auto const ledgerExpected = R"({
+      "accepted":true,
+      "account_hash":"0000000000000000000000000000000000000000000000000000000000000000",
+      "close_flags":0,
+      "close_time":0,
+      "close_time_resolution":0,
+      "hash":"4BC50C9B0D8515D3EAAE1E74B29A95804346C491EE1A95BF25E4AAB854A6A652",
+      "ledger_hash":"4BC50C9B0D8515D3EAAE1E74B29A95804346C491EE1A95BF25E4AAB854A6A652",
+      "ledger_index":"30",
+      "parent_close_time":0,
+      "parent_hash":"0000000000000000000000000000000000000000000000000000000000000000",
+      "seqNum":"30",
+      "totalCoins":"0",
+      "total_coins":"0",
+      "transaction_hash":"0000000000000000000000000000000000000000000000000000000000000000",
+      "closed":true
+   })";
+
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _))
+        .WillByDefault(Return(CreateLedgerInfo(LEDGERHASH, RANGEMAX)));
+
+    auto limit = 10;
+    std::vector<Blob> bbs;
+
+    EXPECT_CALL(*rawBackendPtr, doFetchSuccessorKey).Times(limit);
+    ON_CALL(*rawBackendPtr, doFetchSuccessorKey(_, RANGEMAX, _)).WillByDefault(Return(ripple::uint256{INDEX2}));
+
+    while (limit--)
+    {
+        auto const line =
+            CreateRippleStateLedgerObject(ACCOUNT, "USD", ACCOUNT2, 10, ACCOUNT, 100, ACCOUNT2, 200, TXNID, 123);
+        bbs.push_back(line.getSerializer().peekData());
+    }
+
+    ON_CALL(*rawBackendPtr, doFetchLedgerObjects).WillByDefault(Return(bbs));
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObjects).Times(1);
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(R"({"limit":10})");
+        auto output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_TRUE(output);
+        EXPECT_TRUE(output->as_object().contains("ledger"));
+        //"close_time_human" 's format depends on platform, might be sightly different
+        EXPECT_EQ(output->as_object().at("ledger").as_object().erase("close_time_human"), 1);
+        EXPECT_EQ(output->as_object().at("ledger"), json::parse(ledgerExpected));
+        EXPECT_EQ(output->as_object().at("marker").as_string(), INDEX2);
+        EXPECT_EQ(output->as_object().at("state").as_array().size(), 10);
+        EXPECT_EQ(output->as_object().at("ledger_hash").as_string(), LEDGERHASH);
+        EXPECT_EQ(output->as_object().at("ledger_index").as_uint64(), RANGEMAX);
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, OutOfOrder)
+{
+    static auto const ledgerExpected = R"({
+      "accepted":true,
+      "account_hash":"0000000000000000000000000000000000000000000000000000000000000000",
+      "close_flags":0,
+      "close_time":0,
+      "close_time_resolution":0,
+      "hash":"4BC50C9B0D8515D3EAAE1E74B29A95804346C491EE1A95BF25E4AAB854A6A652",
+      "ledger_hash":"4BC50C9B0D8515D3EAAE1E74B29A95804346C491EE1A95BF25E4AAB854A6A652",
+      "ledger_index":"30",
+      "parent_close_time":0,
+      "parent_hash":"0000000000000000000000000000000000000000000000000000000000000000",
+      "seqNum":"30",
+      "totalCoins":"0",
+      "total_coins":"0",
+      "transaction_hash":"0000000000000000000000000000000000000000000000000000000000000000",
+      "closed":true
+   })";
+
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _))
+        .WillByDefault(Return(CreateLedgerInfo(LEDGERHASH, RANGEMAX)));
+
+    // page end
+    // marker return seq
+    std::vector<Blob> bbs;
+    EXPECT_CALL(*rawBackendPtr, doFetchSuccessorKey).Times(2);
+    ON_CALL(*rawBackendPtr, doFetchSuccessorKey(firstKey, RANGEMAX, _)).WillByDefault(Return(ripple::uint256{INDEX2}));
+    ON_CALL(*rawBackendPtr, doFetchSuccessorKey(ripple::uint256{INDEX2}, RANGEMAX, _))
+        .WillByDefault(Return(std::nullopt));
+
+    auto const line =
+        CreateRippleStateLedgerObject(ACCOUNT, "USD", ACCOUNT2, 10, ACCOUNT, 100, ACCOUNT2, 200, TXNID, 123);
+    bbs.push_back(line.getSerializer().peekData());
+
+    ON_CALL(*rawBackendPtr, doFetchLedgerObjects).WillByDefault(Return(bbs));
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObjects).Times(1);
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(R"({"limit":10, "out_of_order":true})");
+        auto output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_TRUE(output);
+        EXPECT_TRUE(output->as_object().contains("ledger"));
+        EXPECT_EQ(output->as_object().at("ledger").as_object().erase("close_time_human"), 1);
+        EXPECT_EQ(output->as_object().at("ledger"), json::parse(ledgerExpected));
+        EXPECT_EQ(output->as_object().at("marker").as_uint64(), RANGEMAX);
+        EXPECT_EQ(output->as_object().at("state").as_array().size(), 1);
+        EXPECT_EQ(output->as_object().at("ledger_hash").as_string(), LEDGERHASH);
+        EXPECT_EQ(output->as_object().at("ledger_index").as_uint64(), RANGEMAX);
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, Marker)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _))
+        .WillByDefault(Return(CreateLedgerInfo(LEDGERHASH, RANGEMAX)));
+
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObject).Times(1);
+    ON_CALL(*rawBackendPtr, doFetchLedgerObject(ripple::uint256{INDEX1}, RANGEMAX, _))
+        .WillByDefault(
+            Return(CreateRippleStateLedgerObject(ACCOUNT, "USD", ACCOUNT2, 10, ACCOUNT, 100, ACCOUNT2, 200, TXNID, 123)
+                       .getSerializer()
+                       .peekData()));
+
+    auto limit = 10;
+    std::vector<Blob> bbs;
+    EXPECT_CALL(*rawBackendPtr, doFetchSuccessorKey).Times(limit);
+    ON_CALL(*rawBackendPtr, doFetchSuccessorKey(ripple::uint256{INDEX1}, RANGEMAX, _))
+        .WillByDefault(Return(ripple::uint256{INDEX2}));
+    ON_CALL(*rawBackendPtr, doFetchSuccessorKey(ripple::uint256{INDEX2}, RANGEMAX, _))
+        .WillByDefault(Return(ripple::uint256{INDEX2}));
+
+    while (limit--)
+    {
+        auto const line =
+            CreateRippleStateLedgerObject(ACCOUNT, "USD", ACCOUNT2, 10, ACCOUNT, 100, ACCOUNT2, 200, TXNID, 123);
+        bbs.push_back(line.getSerializer().peekData());
+    }
+
+    ON_CALL(*rawBackendPtr, doFetchLedgerObjects).WillByDefault(Return(bbs));
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObjects).Times(1);
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(fmt::format(
+            R"({{
+                "limit":10,
+                "marker": "{}"
+            }})",
+            INDEX1));
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_TRUE(output);
+        EXPECT_FALSE(output->as_object().contains("ledger"));
+        EXPECT_EQ(output->as_object().at("marker").as_string(), INDEX2);
+        EXPECT_EQ(output->as_object().at("state").as_array().size(), 10);
+        EXPECT_EQ(output->as_object().at("ledger_hash").as_string(), LEDGERHASH);
+        EXPECT_EQ(output->as_object().at("ledger_index").as_uint64(), RANGEMAX);
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, DiffMarker)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _))
+        .WillByDefault(Return(CreateLedgerInfo(LEDGERHASH, RANGEMAX)));
+
+    auto limit = 10;
+    std::vector<LedgerObject> los;
+    std::vector<Blob> bbs;
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerDiff).Times(1);
+
+    while (limit--)
+    {
+        auto const line =
+            CreateRippleStateLedgerObject(ACCOUNT, "USD", ACCOUNT2, 10, ACCOUNT, 100, ACCOUNT2, 200, TXNID, 123);
+        bbs.push_back(line.getSerializer().peekData());
+        los.push_back(LedgerObject{ripple::uint256{INDEX2}, Blob{}});
+    }
+    ON_CALL(*rawBackendPtr, fetchLedgerDiff(RANGEMAX, _)).WillByDefault(Return(los));
+
+    ON_CALL(*rawBackendPtr, doFetchLedgerObjects).WillByDefault(Return(bbs));
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObjects).Times(1);
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(fmt::format(
+            R"({{
+                "limit":10,
+                "marker": {},
+                "out_of_order": true
+            }})",
+            RANGEMAX));
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_TRUE(output);
+        EXPECT_FALSE(output->as_object().contains("ledger"));
+        EXPECT_EQ(output->as_object().at("state").as_array().size(), 10);
+        EXPECT_EQ(output->as_object().at("ledger_hash").as_string(), LEDGERHASH);
+        EXPECT_EQ(output->as_object().at("ledger_index").as_uint64(), RANGEMAX);
+        EXPECT_FALSE(output->as_object().at("cache_full").as_bool());
+    });
+}
+
+TEST_F(RPCLedgerDataHandlerTest, Binary)
+{
+    auto const rawBackendPtr = static_cast<MockBackend*>(mockBackendPtr.get());
+    mockBackendPtr->updateRange(RANGEMIN);  // min
+    mockBackendPtr->updateRange(RANGEMAX);  // max
+
+    EXPECT_CALL(*rawBackendPtr, fetchLedgerBySequence).Times(1);
+    ON_CALL(*rawBackendPtr, fetchLedgerBySequence(RANGEMAX, _))
+        .WillByDefault(Return(CreateLedgerInfo(LEDGERHASH, RANGEMAX)));
+
+    auto limit = 10;
+    std::vector<Blob> bbs;
+
+    EXPECT_CALL(*rawBackendPtr, doFetchSuccessorKey).Times(limit);
+    ON_CALL(*rawBackendPtr, doFetchSuccessorKey(_, RANGEMAX, _)).WillByDefault(Return(ripple::uint256{INDEX2}));
+
+    while (limit--)
+    {
+        auto const line =
+            CreateRippleStateLedgerObject(ACCOUNT, "USD", ACCOUNT2, 10, ACCOUNT, 100, ACCOUNT2, 200, TXNID, 123);
+        bbs.push_back(line.getSerializer().peekData());
+    }
+
+    ON_CALL(*rawBackendPtr, doFetchLedgerObjects).WillByDefault(Return(bbs));
+    EXPECT_CALL(*rawBackendPtr, doFetchLedgerObjects).Times(1);
+
+    runSpawn([&, this](auto& yield) {
+        auto const handler = AnyHandler{LedgerDataHandler{mockBackendPtr}};
+        auto const req = json::parse(
+            R"({
+                "limit":10,
+                "binary": true
+            })");
+        auto const output = handler.process(req, Context{std::ref(yield)});
+        ASSERT_TRUE(output);
+        EXPECT_TRUE(output->as_object().contains("ledger"));
+        EXPECT_TRUE(output->as_object().at("ledger").as_object().contains("ledger_data"));
+        EXPECT_TRUE(output->as_object().at("ledger").as_object().at("closed").as_bool());
+        EXPECT_EQ(output->as_object().at("state").as_array().size(), 10);
+        EXPECT_EQ(output->as_object().at("ledger_hash").as_string(), LEDGERHASH);
+        EXPECT_EQ(output->as_object().at("ledger_index").as_uint64(), RANGEMAX);
+    });
+}