tests: add unit tests for get_output_distribution

1 files changed, 171 insertions, 0 deletions

diff --git a/tests/unit_tests/output_distribution.cpp b/tests/unit_tests/output_distribution.cpp
new file mode 100644
index 000000000..649752ac7
--- /dev/null
+++ b/tests/unit_tests/output_distribution.cpp
@@ -0,0 +1,171 @@
+// Copyright (c) 2018, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "gtest/gtest.h"
+#include "misc_log_ex.h"
+#include "rpc/rpc_handler.h"
+#include "blockchain_db/blockchain_db.h"
+#include "cryptonote_core/cryptonote_core.h"
+#include "cryptonote_core/tx_pool.h"
+#include "cryptonote_core/blockchain.h"
+#include "testdb.h"
+
+static const uint64_t test_distribution[32] = {
+  0, 0, 0, 0, 0, 1, 5, 1, 4, 0, 0, 1, 0, 1, 2, 3, 1, 0, 2, 0, 1, 3, 8, 1, 3, 5, 7, 1, 5, 0, 2, 3
+};
+static const size_t test_distribution_size = sizeof(test_distribution) / sizeof(test_distribution[0]);
+
+namespace
+{
+
+class TestDB: public BaseTestDB
+{
+public:
+  TestDB(size_t bc_height = test_distribution_size): blockchain_height(bc_height) { m_open = true; }
+  virtual uint64_t height() const override { return blockchain_height; }
+
+  std::vector<uint64_t> get_block_cumulative_rct_outputs(const std::vector<uint64_t> &heights) const override
+  {
+    std::vector<uint64_t> d;
+    for (uint64_t h: heights)
+    {
+      uint64_t c = 0;
+      for (uint64_t i = 0; i <= h; ++i)
+        c += test_distribution[i];
+      d.push_back(c);
+    }
+    return d;
+  }
+
+  uint64_t blockchain_height;
+};
+
+}
+
+bool get_output_distribution(uint64_t amount, uint64_t from, uint64_t to, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base)
+{
+  std::unique_ptr<cryptonote::Blockchain> bc;
+  cryptonote::tx_memory_pool txpool(*bc);
+  bc.reset(new cryptonote::Blockchain(txpool));
+  struct get_test_options {
+    const std::pair<uint8_t, uint64_t> hard_forks[2];
+    const cryptonote::test_options test_options = {
+      hard_forks
+    };
+    get_test_options():hard_forks{std::make_pair((uint8_t)1, (uint64_t)0), std::make_pair((uint8_t)0, (uint64_t)0)}{}
+  } opts;
+  cryptonote::Blockchain *blockchain = bc.get();
+  bool r = blockchain->init(new TestDB(test_distribution_size), cryptonote::FAKECHAIN, true, &opts.test_options, 0, NULL);
+  return r && bc->get_output_distribution(amount, from, to, start_height, distribution, base);
+}
+
+TEST(output_distribution, extend)
+{
+  boost::optional<cryptonote::rpc::output_distribution_data> res;
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 28, 29, false);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 2);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({5, 0}));
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 28, 29, true);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 2);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({55, 55}));
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 28, 30, false);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 3);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({5, 0, 2}));
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 28, 30, true);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 3);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({55, 55, 57}));
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 28, 31, false);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 4);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({5, 0, 2, 3}));
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 28, 31, true);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 4);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({55, 55, 57, 60}));
+}
+
+TEST(output_distribution, one)
+{
+  boost::optional<cryptonote::rpc::output_distribution_data> res;
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 0, 0, false);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 1);
+  ASSERT_EQ(res->distribution.back(), 0);
+}
+
+TEST(output_distribution, full_cumulative)
+{
+  boost::optional<cryptonote::rpc::output_distribution_data> res;
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 0, 31, true);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 32);
+  ASSERT_EQ(res->distribution.back(), 60);
+}
+
+TEST(output_distribution, full_noncumulative)
+{
+  boost::optional<cryptonote::rpc::output_distribution_data> res;
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 0, 31, false);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 32);
+  for (size_t i = 0; i < 32; ++i)
+    ASSERT_EQ(res->distribution[i], test_distribution[i]);
+}
+
+TEST(output_distribution, part_cumulative)
+{
+  boost::optional<cryptonote::rpc::output_distribution_data> res;
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 4, 8, true);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 5);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({0, 1, 6, 7, 11}));
+}
+
+TEST(output_distribution, part_noncumulative)
+{
+  boost::optional<cryptonote::rpc::output_distribution_data> res;
+
+  res = cryptonote::rpc::RpcHandler::get_output_distribution(::get_output_distribution, 0, 4, 8, false);
+  ASSERT_TRUE(res != boost::none);
+  ASSERT_EQ(res->distribution.size(), 5);
+  ASSERT_EQ(res->distribution, std::vector<uint64_t>({0, 1, 5, 1, 4}));
+}