Function UNIT_TEST

libs/routing/routing_tests/fake_graph_test.cpp:95–132

Test constructs two fake graphs, performs checks during construction, merges graphs Calls FakeGraph::Append and checks topology of the merged graph.

// Test constructs two fake graphs, performs checks during construction, merges graphs
// Calls FakeGraph::Append and checks topology of the merged graph.
UNIT_TEST(FakeGraphTest)
{
  uint32_t const fake0 = 5;
  uint32_t const real0 = 3;
  uint32_t const fake1 = 4;
  uint32_t const real1 = 2;
  auto fakeGraph0 = ConstructFakeGraph(0, fake0, real0);
  TEST_EQUAL(fakeGraph0.GetSize(), fake0 + real0, ("Wrong fake graph size"));

  auto const fakeGraph1 = ConstructFakeGraph(static_cast<uint32_t>(fakeGraph0.GetSize()), fake1, real1);
  TEST_EQUAL(fakeGraph1.GetSize(), fake1 + real1, ("Wrong fake graph size"));

  fakeGraph0.Append(fakeGraph1);
  TEST_EQUAL(fakeGraph0.GetSize(), fake0 + real0 + fake1 + real1, ("Wrong size of merged graph"));

  // Test merged graph.
  for (uint32_t i = 0; i + 1 < fakeGraph0.GetSize(); ++i)
  {
    auto const segmentFrom = GetSegment(i);
    auto const segmentTo = GetSegment(i + 1);

    TEST_EQUAL(fakeGraph0.GetVertex(segmentFrom), GetFakeVertex(i), ("Wrong segment to vertex mapping."));
    TEST_EQUAL(fakeGraph0.GetVertex(segmentTo), GetFakeVertex(i + 1), ("Wrong segment to vertex mapping."));
    // No connection to next fake segment; next segment was in separate fake graph before Append.
    if (i + 1 == fake0 + real0)
    {
      TEST(fakeGraph0.GetEdges(segmentFrom, true /* isOutgoing */).empty(), ("Wrong ingoing edges set."));
      TEST(fakeGraph0.GetEdges(segmentTo, false /* isOutgoing */).empty(), ("Wrong ingoing edges set."));
    }
    else
    {
      TEST_EQUAL(fakeGraph0.GetEdges(segmentFrom, true /* isOutgoing */), set<Segment>{segmentTo},
                 ("Wrong ingoing edges set."));
      TEST_EQUAL(fakeGraph0.GetEdges(segmentTo, false /* isOutgoing */), set<Segment>{segmentFrom},
                 ("Wrong ingoing edges set."));
    }
  }
}
}  // namespace fake_graph_test