[CI] Add coveragepy and remove ignore: test (ros-controls#1668)

codecov.yml

@@ -14,8 +14,6 @@ fixes:
 comment:
   layout: "diff, flags, files"
   behavior: default
-ignore:
-  - "**/test"
 flags:
   unittests:
     paths:

controller_manager/package.xml

@@ -31,6 +31,7 @@
 
   <test_depend>ament_cmake_gmock</test_depend>
   <test_depend>ament_cmake_pytest</test_depend>
+  <test_depend>python3-coverage</test_depend>
   <test_depend>hardware_interface_testing</test_depend>
   <test_depend>ros2_control_test_assets</test_depend>
 

controller_manager/test/test_spawner_unspawner.cpp

@@ -27,6 +27,7 @@
 
 using ::testing::_;
 using ::testing::Return;
+const char coveragepy_script[] = "python3 -m coverage run --append --branch";
 
 using namespace std::chrono_literals;
 class TestLoadController : public ControllerManagerFixture<controller_manager::ControllerManager>
@@ -68,14 +69,18 @@ class TestLoadController : public ControllerManagerFixture<controller_manager::C
 
 int call_spawner(const std::string extra_args)
 {
-  std::string spawner_script = "ros2 run controller_manager spawner ";
+  std::string spawner_script =
+    std::string(coveragepy_script) +
+    " $(ros2 pkg prefix controller_manager)/lib/controller_manager/spawner ";
   return std::system((spawner_script + extra_args).c_str());
 }
 
 int call_unspawner(const std::string extra_args)
 {
-  std::string spawner_script = "ros2 run controller_manager unspawner ";
-  return std::system((spawner_script + extra_args).c_str());
+  std::string unspawner_script =
+    std::string(coveragepy_script) +
+    " $(ros2 pkg prefix controller_manager)/lib/controller_manager/unspawner ";
+  return std::system((unspawner_script + extra_args).c_str());
 }
 
 TEST_F(TestLoadController, spawner_with_no_arguments_errors)
@@ -301,8 +306,9 @@ TEST_F(TestLoadController, unload_on_kill)
   cm_->set_parameter(rclcpp::Parameter("ctrl_3.type", test_controller::TEST_CONTROLLER_CLASS_NAME));
   std::stringstream ss;
   ss << "timeout --signal=INT 5 "
-     << "ros2 run controller_manager spawner ctrl_3 -c test_controller_manager"
-     << " --unload-on-kill";
+     << std::string(coveragepy_script) +
+          " $(ros2 pkg prefix controller_manager)/lib/controller_manager/spawner "
+     << "ctrl_3 -c test_controller_manager --unload-on-kill";
 
   EXPECT_NE(std::system(ss.str().c_str()), 0)
     << "timeout should have killed spawner and returned non 0 code";