Added if statement sequence diagram support

tests/t20020/.clang-uml

@@ -0,0 +1,14 @@
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t20020_sequence:
+    type: sequence
+    glob:
+      - ../../tests/t20020/t20020.cc
+    include:
+      namespaces:
+        - clanguml::t20020
+    using_namespace:
+      - clanguml::t20020
+    start_from:
+      - function: "clanguml::t20020::tmain()"

tests/t20020/t20020.cc

@@ -0,0 +1,56 @@
+#include <cmath>
+#include <cstdint>
+
+namespace clanguml {
+namespace t20020 {
+struct A {
+    int a1() { return 0; }
+    int a2() { return 1; }
+    int a3() { return 2; }
+};
+
+struct B {
+    void log() { }
+
+    int b1() { return 3; }
+    int b2() { return 4; }
+};
+
+int tmain()
+{
+    A a;
+    B b;
+
+    int result{0};
+
+    if (reinterpret_cast<uint64_t>(&a) % 100 == 0ULL) {
+        result = a.a1();
+    }
+    else if (reinterpret_cast<uint64_t>(&a) % 64 == 0ULL) {
+        if (a.a2() > 2)
+            result = b.b1();
+        else
+            result = b.b2();
+    }
+    else {
+        result = a.a3();
+    }
+
+    b.log();
+
+    // This if/else should not be included in the diagram at all
+    // as the calls to std will be excluded by the diagram filters
+    if (result != 2) {
+        result = std::exp(result);
+    }
+    else if(result == 3) {
+        result = 4;
+    }
+    else {
+        result = std::exp(result + 1);
+    }
+
+    return result;
+}
+}
+}

tests/t20020/test_case.h

@@ -0,0 +1,49 @@
+/**
+ * tests/t20020/test_case.h
+ *
+ * Copyright (c) 2021-2022 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("t20020", "[test-case][sequence]")
+{
+    auto [config, db] = load_config("t20020");
+
+    auto diagram = config.diagrams["t20020_sequence"];
+
+    REQUIRE(diagram->name == "t20020_sequence");
+
+    auto model = generate_sequence_diagram(*db, diagram);
+
+    REQUIRE(model->name() == "t20020_sequence");
+
+    auto puml = generate_sequence_puml(diagram, *model);
+    AliasMatcher _A(puml);
+
+    REQUIRE_THAT(puml, StartsWith("@startuml"));
+    REQUIRE_THAT(puml, EndsWith("@enduml\n"));
+
+    
+    // Check if all calls exist
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("A"), "a1()"));
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("A"), "a2()"));
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("A"), "a3()"));
+
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("B"), "b1()"));
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("B"), "b2()"));
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("B"), "log()"));
+
+    save_puml(
+        "./" + config.output_directory() + "/" + diagram->name + ".puml", puml);
+}

tests/test_cases.cc

@@ -266,6 +266,7 @@ using namespace clanguml::test::matchers;
 #include "t20017/test_case.h"
 #include "t20018/test_case.h"
 #include "t20019/test_case.h"
+#include "t20020/test_case.h"
 
 ///
 /// Package diagram tests

tests/test_cases.yaml

@@ -205,6 +205,9 @@ test_cases:
     - name: t20019
       title: Curiously Recurring Template Pattern sequence diagram test case
       description:
+    - name: t20020
+      title: If statement sequence diagram test case
+      description:
   Package diagrams:
     - name: t30001
       title: Basic package diagram test case