Fix linting errors

tracetools_test/src/test_timer.cpp

@@ -1,47 +1,48 @@
+#include <memory>
 #include <chrono>
 
 #include "rclcpp/rclcpp.hpp"
 
 using namespace std::chrono_literals;
 
-
 class TimerNode : public rclcpp::Node
 {
 public:
-    TimerNode(rclcpp::NodeOptions options) : Node("timer_node", options)
-    {
-        is_done_ = false;
-        timer_ = this->create_wall_timer(
-            1ms,
-            std::bind(&TimerNode::timer_callback, this));
-    }
+  explicit TimerNode(rclcpp::NodeOptions options)
+  : Node("timer_node", options)
+  {
+    is_done_ = false;
+    timer_ = this->create_wall_timer(
+      1ms,
+      std::bind(&TimerNode::timer_callback, this));
+  }
 
 private:
-    void timer_callback()
-    {
-        if (is_done_) {
-            rclcpp::shutdown();
-        } else {
-            is_done_ = true;
-        }
+  void timer_callback()
+  {
+    if (is_done_) {
+      rclcpp::shutdown();
+    } else {
+      is_done_ = true;
     }
+  }
 
-    rclcpp::TimerBase::SharedPtr timer_;
-    bool is_done_;
+  rclcpp::TimerBase::SharedPtr timer_;
+  bool is_done_;
 };
 
-int main(int argc, char* argv[])
+int main(int argc, char * argv[])
 {
-    rclcpp::init(argc, argv);
+  rclcpp::init(argc, argv);
 
-    rclcpp::executors::SingleThreadedExecutor exec;
-    auto timer_node = std::make_shared<TimerNode>(rclcpp::NodeOptions());
-    exec.add_node(timer_node);
+  rclcpp::executors::SingleThreadedExecutor exec;
+  auto timer_node = std::make_shared<TimerNode>(rclcpp::NodeOptions());
+  exec.add_node(timer_node);
 
-    printf("spinning\n");
-    exec.spin();
+  printf("spinning\n");
+  exec.spin();
 
-    // Will actually be called inside the timer's callback
-    rclcpp::shutdown();
-    return 0;
+  // Will actually be called inside the timer's callback
+  rclcpp::shutdown();
+  return 0;
 }