gndtruth_extractor: Fix segfault on error opening file

plugins/gndtruth_extractor/src/gndtruth_extractor.cpp

@@ -80,7 +80,7 @@ class GndTruthMsgPackSerializer
 class GndTruthSerializer {
  public:
   virtual ~GndTruthSerializer() = 0;
-  virtual void open_file(const std::string& filename) = 0;
+  virtual bool open_file(const std::string& filename) = 0;
   virtual void serialize(const Sync& sync, const GndTruth& gt) = 0;
   virtual void close_file() = 0;
 
@@ -103,10 +103,12 @@ class GndTruthSerializerImpl
   GndTruthSerializerImpl(Logger logger) : base1(logger), GndTruthSerializer() {}
   virtual ~GndTruthSerializerImpl() override;
   using base1::open_file;
-  virtual void open_file(const std::string& filename) override {
+
+  [[nodiscard]]
+  virtual bool open_file(const std::string& filename) override {
     std::string default_name = this->outputstream_.make_default_filename(
         this->serializer_.make_default_filename(default_filename));
-    base1::open_file(filename, default_name);
+    return base1::open_file(filename, default_name);
   }
   virtual void serialize(const Sync& sync, const GndTruth& gt) override {
     base1::serialize(sync, gt);
@@ -219,7 +221,10 @@ class GndTruthExtractor : public Controller {
  private:
   void open_file() {
     if (serializer_) {
-      serializer_->open_file(config_.output_file);
+      bool ok = serializer_->open_file(config_.output_file);
+      if (!ok) {
+        throw cloe::ModelAbort("cannot open file: {}", config_.output_file);
+      }
     }
   }
   void close_file() {

plugins/gndtruth_extractor/tests/conanfile_default.py

@@ -0,0 +1,32 @@
+from pathlib import Path
+from conan import ConanFile
+
+
+class CloeTest(ConanFile):
+    python_requires = "cloe-launch-profile/[~=0.19.0]@cloe/develop"
+    python_requires_extend = "cloe-launch-profile.Base"
+
+    default_options = {
+        "cloe-engine:server": False,
+    }
+
+    @property
+    def cloe_launch_env(self):
+        return {
+            "CLOE_LOG_LEVEL": "debug",
+            "CLOE_STRICT_MODE": "1",
+            "CLOE_WRITE_OUTPUT": "0",
+            "CLOE_ROOT": Path(self.recipe_folder) / "../../..",
+        }
+
+    def set_version(self):
+        self.version = self.project_version("../../../VERSION")
+
+    def requirements(self):
+        self.requires(f"cloe-engine/{self.version}@cloe/develop")
+        self.requires(f"cloe-plugin-basic/{self.version}@cloe/develop")
+        self.requires(f"cloe-plugin-minimator/{self.version}@cloe/develop")
+        self.requires(f"cloe-plugin-gndtruth-extractor/{self.version}@cloe/develop")
+
+        if self.options["cloe-engine"].server:
+            self.requires("boost/[<1.70]", override=True)

plugins/gndtruth_extractor/tests/config_minimator_smoketest.json

@@ -0,0 +1,28 @@
+{
+  "version": "4",
+  "include": [
+    "${CLOE_ROOT}/tests/controller_basic.json"
+  ],
+  "simulators": [
+    {
+      "binding": "minimator"
+    }
+  ],
+  "vehicles": [
+    {
+      "name": "default",
+      "from": {
+        "simulator": "minimator",
+        "index": 0
+      }
+    }
+  ],
+  "server": {
+    "listen": false,
+    "listen_port": 23456
+  },
+  "triggers": [
+    {"event": "start",   "action": "realtime_factor=-1"},
+    {"event": "time=60", "action": "succeed"}
+  ]
+}

plugins/gndtruth_extractor/tests/test_gndtruth.bats

@@ -0,0 +1,13 @@
+#!/usr/bin/env bats
+
+cd "${BATS_TEST_DIRNAME}"
+export CLOE_ROOT="${BATS_TEST_DIRNAME}/../../.."
+load "${CLOE_ROOT}/tests/setup_bats.bash"
+load "${CLOE_ROOT}/tests/setup_testname.bash"
+
+@test "$(testname 'Expect run failure' 'test_gndtruth_invalid_file.json' '29e8ff3b-86f3-4320-ba69-05600df1f836')" {
+    cloe-engine check test_gndtruth_invalid_file.json
+    run cloe-engine run test_gndtruth_invalid_file.json
+    assert_exit_failure $status
+    test $status -eq $CLOE_EXIT_ABORTED
+}

plugins/gndtruth_extractor/tests/test_gndtruth_invalid_file.json

@@ -0,0 +1,15 @@
+{
+  "version": "4",
+  "include": [
+    "config_minimator_smoketest.json"
+  ],
+  "controllers": [
+    {
+      "binding": "gndtruth_extractor",
+      "vehicle": "default",
+      "args": {
+        "output_file": "/tmp/nonexistant/file/that/will/not/be/created.json.gz"
+      }
+    }
+  ]
+}