diff --git a/planning/autoware_planning_test_manager/include/autoware_planning_test_manager/autoware_planning_test_manager_utils.hpp b/planning/autoware_planning_test_manager/include/autoware_planning_test_manager/autoware_planning_test_manager_utils.hpp
index 5081b14dda63b..8a075594ebd3a 100644
--- a/planning/autoware_planning_test_manager/include/autoware_planning_test_manager/autoware_planning_test_manager_utils.hpp
+++ b/planning/autoware_planning_test_manager/include/autoware_planning_test_manager/autoware_planning_test_manager_utils.hpp
@@ -35,7 +35,7 @@ using geometry_msgs::msg::Pose;
 using nav_msgs::msg::Odometry;
 using RouteSections = std::vector<autoware_planning_msgs::msg::LaneletSegment>;
 
-Pose createPoseFromLaneID(
+inline Pose createPoseFromLaneID(
   const lanelet::Id & lane_id, const std::string & package_name = "autoware_test_utils",
   const std::string & map_filename = "lanelet2_map.osm")
 {
@@ -70,7 +70,7 @@ Pose createPoseFromLaneID(
 
 // Function to create a route from given start and goal lanelet ids
 // start pose and goal pose are set to the middle of the lanelet
-LaneletRoute makeBehaviorRouteFromLaneId(
+inline LaneletRoute makeBehaviorRouteFromLaneId(
   const int & start_lane_id, const int & goal_lane_id,
   const std::string & package_name = "autoware_test_utils",
   const std::string & map_filename = "lanelet2_map.osm")
@@ -119,7 +119,7 @@ LaneletRoute makeBehaviorRouteFromLaneId(
   return route;
 }
 
-Odometry makeInitialPoseFromLaneId(const lanelet::Id & lane_id)
+inline Odometry makeInitialPoseFromLaneId(const lanelet::Id & lane_id)
 {
   Odometry current_odometry;
   current_odometry.pose.pose = createPoseFromLaneID(lane_id);
diff --git a/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/include/autoware/behavior_path_start_planner_module/shift_pull_out.hpp b/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/include/autoware/behavior_path_start_planner_module/shift_pull_out.hpp
index d1b4c9dabdd7f..5b4f78b252d22 100644
--- a/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/include/autoware/behavior_path_start_planner_module/shift_pull_out.hpp
+++ b/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/include/autoware/behavior_path_start_planner_module/shift_pull_out.hpp
@@ -56,6 +56,8 @@ class ShiftPullOut : public PullOutPlannerBase
 
   std::shared_ptr<LaneDepartureChecker> lane_departure_checker_;
 
+  friend class TestShiftPullOut;
+
 private:
   // Calculate longitudinal distance based on the acceleration limit, curvature limit, and the
   // minimum distance requirement.
diff --git a/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/test/test_shift_pull_out.cpp b/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/test/test_shift_pull_out.cpp
new file mode 100644
index 0000000000000..156cf62f9ac4a
--- /dev/null
+++ b/planning/behavior_path_planner/autoware_behavior_path_start_planner_module/test/test_shift_pull_out.cpp
@@ -0,0 +1,179 @@
+// Copyright 2024 TIER IV, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <ament_index_cpp/get_package_share_directory.hpp>
+#include <autoware/behavior_path_start_planner_module/shift_pull_out.hpp>
+#include <autoware/behavior_path_start_planner_module/start_planner_module.hpp>
+#include <autoware/behavior_path_start_planner_module/util.hpp>
+#include <autoware/lane_departure_checker/lane_departure_checker.hpp>
+#include <autoware/route_handler/route_handler.hpp>
+#include <autoware_lanelet2_extension/utility/query.hpp>
+#include <autoware_planning_test_manager/autoware_planning_test_manager_utils.hpp>
+#include <autoware_test_utils/autoware_test_utils.hpp>
+
+#include <gtest/gtest.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+using autoware::behavior_path_planner::ShiftPullOut;
+using autoware::behavior_path_planner::StartPlannerParameters;
+using autoware::lane_departure_checker::LaneDepartureChecker;
+using autoware::test_utils::get_absolute_path_to_config;
+using autoware_planning_msgs::msg::LaneletRoute;
+using RouteSections = std::vector<autoware_planning_msgs::msg::LaneletSegment>;
+using autoware_planning_test_manager::utils::makeBehaviorRouteFromLaneId;
+
+namespace autoware::behavior_path_planner
+{
+
+class TestShiftPullOut : public ::testing::Test
+{
+public:
+  std::optional<PullOutPath> call_plan(
+    const Pose & start_pose, const Pose & goal_pose, PlannerDebugData & planner_debug_data)
+  {
+    return shift_pull_out_->plan(start_pose, goal_pose, planner_debug_data);
+  }
+
+protected:
+  void SetUp() override
+  {
+    rclcpp::init(0, nullptr);
+    node_ = rclcpp::Node::make_shared("shift_pull_out", make_node_options());
+
+    initialize_lane_departure_checker();
+    initialize_shift_pull_out_planner();
+  }
+
+  void TearDown() override { rclcpp::shutdown(); }
+
+  PlannerData make_planner_data(
+    const Pose & start_pose, const int route_start_lane_id, const int route_goal_lane_id)
+  {
+    PlannerData planner_data;
+    planner_data.init_parameters(*node_);
+
+    // Load a sample lanelet map and create a route handler
+    const auto shoulder_map_path = autoware::test_utils::get_absolute_path_to_lanelet_map(
+      "autoware_test_utils", "road_shoulder/lanelet2_map.osm");
+    const auto map_bin_msg = autoware::test_utils::make_map_bin_msg(shoulder_map_path, 0.5);
+    auto route_handler = std::make_shared<autoware::route_handler::RouteHandler>(map_bin_msg);
+
+    // Set up current odometry at start pose
+    auto odometry = std::make_shared<nav_msgs::msg::Odometry>();
+    odometry->pose.pose = start_pose;
+    odometry->header.frame_id = "map";
+    planner_data.self_odometry = odometry;
+
+    // Setup route
+    const auto route = makeBehaviorRouteFromLaneId(
+      route_start_lane_id, route_goal_lane_id, "autoware_test_utils",
+      "road_shoulder/lanelet2_map.osm");
+    route_handler->setRoute(route);
+
+    // Update planner data with the route handler
+    planner_data.route_handler = route_handler;
+
+    return planner_data;
+  }
+
+  // Member variables
+  std::shared_ptr<rclcpp::Node> node_;
+  std::shared_ptr<ShiftPullOut> shift_pull_out_;
+  std::shared_ptr<LaneDepartureChecker> lane_departure_checker_;
+
+private:
+  rclcpp::NodeOptions make_node_options() const
+  {
+    // Load common configuration files
+    auto node_options = rclcpp::NodeOptions{};
+
+    const auto common_param_path =
+      get_absolute_path_to_config("autoware_test_utils", "test_common.param.yaml");
+    const auto nearest_search_param_path =
+      get_absolute_path_to_config("autoware_test_utils", "test_nearest_search.param.yaml");
+    const auto vehicle_info_param_path =
+      get_absolute_path_to_config("autoware_test_utils", "test_vehicle_info.param.yaml");
+    const auto behavior_path_planner_param_path = get_absolute_path_to_config(
+      "autoware_behavior_path_planner", "behavior_path_planner.param.yaml");
+    const auto drivable_area_expansion_param_path = get_absolute_path_to_config(
+      "autoware_behavior_path_planner", "drivable_area_expansion.param.yaml");
+    const auto scene_module_manager_param_path = get_absolute_path_to_config(
+      "autoware_behavior_path_planner", "scene_module_manager.param.yaml");
+    const auto start_planner_param_path = get_absolute_path_to_config(
+      "autoware_behavior_path_start_planner_module", "start_planner.param.yaml");
+
+    autoware::test_utils::updateNodeOptions(
+      node_options, {common_param_path, nearest_search_param_path, vehicle_info_param_path,
+                     behavior_path_planner_param_path, drivable_area_expansion_param_path,
+                     scene_module_manager_param_path, start_planner_param_path});
+
+    return node_options;
+  }
+
+  void initialize_lane_departure_checker()
+  {
+    const auto vehicle_info =
+      autoware::vehicle_info_utils::VehicleInfoUtils(*node_).getVehicleInfo();
+    lane_departure_checker_ = std::make_shared<LaneDepartureChecker>();
+    lane_departure_checker_->setVehicleInfo(vehicle_info);
+
+    autoware::lane_departure_checker::Param lane_departure_checker_params{};
+    lane_departure_checker_->setParam(lane_departure_checker_params);
+  }
+
+  void initialize_shift_pull_out_planner()
+  {
+    auto parameters = StartPlannerParameters::init(*node_);
+
+    auto time_keeper = std::make_shared<autoware::universe_utils::TimeKeeper>();
+    shift_pull_out_ =
+      std::make_shared<ShiftPullOut>(*node_, parameters, lane_departure_checker_, time_keeper);
+  }
+};
+
+TEST_F(TestShiftPullOut, GenerateValidShiftPullOutPath)
+{
+  const auto start_pose =
+    geometry_msgs::build<geometry_msgs::msg::Pose>()
+      .position(geometry_msgs::build<geometry_msgs::msg::Point>().x(362.181).y(362.164).z(100.000))
+      .orientation(
+        geometry_msgs::build<geometry_msgs::msg::Quaternion>().x(0.0).y(0.0).z(0.709650).w(
+          0.704554));
+
+  const auto goal_pose =
+    geometry_msgs::build<geometry_msgs::msg::Pose>()
+      .position(geometry_msgs::build<geometry_msgs::msg::Point>().x(365.658).y(507.253).z(100.000))
+      .orientation(
+        geometry_msgs::build<geometry_msgs::msg::Quaternion>().x(0.0).y(0.0).z(0.705897).w(
+          0.708314));
+  const auto planner_data = make_planner_data(start_pose, 4619, 4635);
+
+  shift_pull_out_->setPlannerData(std::make_shared<PlannerData>(planner_data));
+
+  // Plan the pull out path
+  PlannerDebugData debug_data;
+  auto result = call_plan(start_pose, goal_pose, debug_data);
+
+  // Assert that a valid shift pull out path is generated
+  ASSERT_TRUE(result.has_value()) << "shift pull out path generation failed.";
+  EXPECT_EQ(result->partial_paths.size(), 1UL)
+    << "Generated shift pull out path does not have the expected number of partial paths.";
+  EXPECT_EQ(debug_data.conditions_evaluation.back(), "success")
+    << "shift pull out path planning did not succeed.";
+}
+
+}  // namespace autoware::behavior_path_planner