Added from_to test case with free functions

tests/t20035/.clang-uml

@@ -0,0 +1,15 @@
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t20035_sequence:
+    type: sequence
+    glob:
+      - ../../tests/t20035/t20035.cc
+    include:
+      namespaces:
+        - clanguml::t20035
+    using_namespace:
+      - clanguml::t20035
+    from_to:
+      - [function: "clanguml::t20035::tmain(int,char **)",
+         function: "clanguml::t20035::c(int)"]

tests/t20035/t20035.cc

@@ -0,0 +1,14 @@
+namespace clanguml {
+namespace t20035 {
+
+int c(int arg) { return arg; }
+
+int b1(int arg) { return c(arg); }
+
+int b2(int arg) { return c(arg); }
+
+int a(int arg) { return b1(arg); }
+
+int tmain(int argc, char **argv) { return a(argc); }
+}
+}

tests/t20035/test_case.h

@@ -0,0 +1,57 @@
+/**
+ * tests/t20035/test_case.h
+ *
+ * Copyright (c) 2021-2023 Bartek Kryza <bkryza@gmail.com>
+ *
+ * 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.
+ */
+
+TEST_CASE("t20035", "[test-case][sequence]")
+{
+    auto [config, db] = load_config("t20035");
+
+    auto diagram = config.diagrams["t20035_sequence"];
+
+    REQUIRE(diagram->name == "t20035_sequence");
+
+    auto model = generate_sequence_diagram(*db, diagram);
+
+    REQUIRE(model->name() == "t20035_sequence");
+
+    {
+        auto puml = generate_sequence_puml(diagram, *model);
+        AliasMatcher _A(puml);
+
+        REQUIRE_THAT(puml, StartsWith("@startuml"));
+        REQUIRE_THAT(puml, EndsWith("@enduml\n"));
+
+        REQUIRE_THAT(puml, HasCall(_A("tmain(int,char **)"), _A("a(int)"), ""));
+        REQUIRE_THAT(puml, HasCall(_A("a(int)"), _A("b1(int)"), ""));
+        REQUIRE_THAT(puml, HasCall(_A("b1(int)"), _A("c(int)"), ""));
+
+        save_puml(
+            config.output_directory() + "/" + diagram->name + ".puml", puml);
+    }
+
+    {
+        auto j = generate_sequence_json(diagram, *model);
+
+        using namespace json;
+
+        REQUIRE(HasMessageChain(j,
+            {{"tmain(int,char **)", "a(int)", "int"},
+                {"a(int)", "b1(int)", "int"}, {"b1(int)", "c(int)", "int"}}));
+
+        save_json(config.output_directory() + "/" + diagram->name + ".json", j);
+    }
+}

tests/test_cases.cc

@@ -348,6 +348,7 @@ using namespace clanguml::test::matchers;
 #include "t20032/test_case.h"
 #include "t20033/test_case.h"
 #include "t20034/test_case.h"
+#include "t20035/test_case.h"
 
 ///
 /// Package diagram tests

tests/test_cases.yaml

@@ -298,6 +298,12 @@ test_cases:
     - name: t20033
       title: Control statement text in sequence diagram test case
       description:
+    - name: t20034
+      title: from_to sequence diagram test case
+      description:
+    - name: t20035
+      title: from_to sequence diagram test case with free functions
+      description:
   Package diagrams:
     - name: t30001
       title: Basic package diagram test case