From afa1d62d211edc5e1e87ebee6f06a6c60da8d776 Mon Sep 17 00:00:00 2001
From: Lev Dragunov <l.dragunov@corp.mail.ru>
Date: Tue, 10 Nov 2015 11:11:30 +0300
Subject: [PATCH] Routing session tests.

---
 .../routing_tests/routing_session_test.cpp    | 127 ++++++++++++++++++
 routing/routing_tests/routing_tests.pro       |   1 +
 2 files changed, 128 insertions(+)
 create mode 100644 routing/routing_tests/routing_session_test.cpp

diff --git a/routing/routing_tests/routing_session_test.cpp b/routing/routing_tests/routing_session_test.cpp
new file mode 100644
index 0000000000..cd7c15a4e1
--- /dev/null
+++ b/routing/routing_tests/routing_session_test.cpp
@@ -0,0 +1,127 @@
+#include "testing/testing.hpp"
+
+#include "routing/route.hpp"
+#include "routing/router.hpp"
+#include "routing/routing_session.hpp"
+
+#include "geometry/point2d.hpp"
+
+#include "base/logging.hpp"
+
+#include "std/string.hpp"
+#include "std/vector.hpp"
+
+namespace routing {
+// Simple router. It returns route given to him on creation.
+class DummyRouter : public IRouter
+{
+private:
+  Route & m_route;
+  ResultCode m_code;
+  size_t & m_buildCount;
+
+public:
+  DummyRouter(Route & route, ResultCode code, size_t & buildCounter)
+    : m_route(route), m_code(code), m_buildCount(buildCounter)
+  {
+  }
+  string GetName() const override { return "dummy"; }
+  void ClearState() override {}
+  ResultCode CalculateRoute(m2::PointD const & /* startPoint */,
+                            m2::PointD const & /* startDirection */,
+                            m2::PointD const & /* finalPoint */,
+                            RouterDelegate const & /* delegate */, Route & route) override
+  {
+    ++m_buildCount;
+    route = m_route;
+    return m_code;
+  }
+};
+
+static vector<m2::PointD> kTestRoute = {{0., 1.}, {0., 2.}, {0., 3.}, {0., 4.}};
+
+UNIT_TEST(TestRouteBuilding)
+{
+  RoutingSession session;
+  session.Init(nullptr, nullptr);
+  vector<m2::PointD> routePoints = kTestRoute;
+  Route masterRoute("dummy", routePoints.begin(), routePoints.end());
+  size_t counter = 0;
+  atomic<bool> routeBuilded(false);
+  unique_ptr<DummyRouter> router = make_unique<DummyRouter>(masterRoute, DummyRouter::NoError, counter);
+  session.SetRouter(move(router), nullptr);
+  session.BuildRoute(kTestRoute.front(), kTestRoute.back(),
+                     [&routeBuilded](Route const &, IRouter::ResultCode)
+                     {
+                       routeBuilded = true;
+                     },
+                     nullptr, 0);
+  while (!routeBuilded)
+  {
+  }
+  TEST_EQUAL(counter, 1, ());
+}
+
+UNIT_TEST(TestRouteRebuilding)
+{
+  Index index;
+  RoutingSession session;
+  session.Init(nullptr, nullptr);
+  vector<m2::PointD> routePoints = kTestRoute;
+  Route masterRoute("dummy", routePoints.begin(), routePoints.end());
+  size_t counter = 0;
+  atomic<bool> routeBuilded(false);
+  unique_ptr<DummyRouter> router = make_unique<DummyRouter>(masterRoute, DummyRouter::NoError, counter);
+  session.SetRouter(move(router), nullptr);
+
+  // Go along the route.
+  session.BuildRoute(kTestRoute.front(), kTestRoute.back(),
+                     [&routeBuilded](Route const &, IRouter::ResultCode)
+                     {
+                       routeBuilded = true;
+                     },
+                     nullptr, 0);
+  while (!routeBuilded)
+  {
+  }
+
+  location::GpsInfo info;
+  info.m_horizontalAccuracy = 0.01;
+  info.m_verticalAccuracy = 0.01;
+  info.m_longitude = 0.;
+  info.m_latitude = 1.;
+  RoutingSession::State code = session.OnLocationPositionChanged(
+      MercatorBounds::FromLatLon(info.m_latitude, info.m_longitude), info, index);
+  while (info.m_latitude < kTestRoute.back().y)
+  {
+    code = session.OnLocationPositionChanged(
+        MercatorBounds::FromLatLon(info.m_latitude, info.m_longitude), info, index);
+    TEST_EQUAL(code, RoutingSession::State::OnRoute, ());
+    info.m_latitude += 0.01;
+  }
+  TEST_EQUAL(counter, 1, ());
+
+  // Rebuild route and go in opposite direction. So initiate a route rebuilding flag.
+  counter = 0;
+  routeBuilded = false;
+  session.BuildRoute(kTestRoute.front(), kTestRoute.back(),
+                     [&routeBuilded](Route const &, IRouter::ResultCode)
+                     {
+                       routeBuilded = true;
+                     },
+                     nullptr, 0);
+  info.m_longitude = 0.;
+  info.m_latitude = 1.;
+  while (!routeBuilded)
+  {
+  }
+
+  for (size_t i = 0; i < 10; ++i)
+  {
+    code = session.OnLocationPositionChanged(
+        MercatorBounds::FromLatLon(info.m_latitude, info.m_longitude), info, index);
+    info.m_latitude -= 0.1;
+  }
+  TEST_EQUAL(code, RoutingSession::State::RouteNeedRebuild, ());
+}
+}  // namespace routing
diff --git a/routing/routing_tests/routing_tests.pro b/routing/routing_tests/routing_tests.pro
index 6c46d3ae7b..f9cad6e63f 100644
--- a/routing/routing_tests/routing_tests.pro
+++ b/routing/routing_tests/routing_tests.pro
@@ -34,6 +34,7 @@ SOURCES += \
   road_graph_nearest_edges_test.cpp \
   route_tests.cpp \
   routing_mapping_test.cpp \
+  routing_session_test.cpp \
   turns_generator_test.cpp \
   turns_sound_test.cpp \
   turns_tts_text_tests.cpp \