Added pimpl unit test case

tests/t00018/.clanguml

@@ -0,0 +1,13 @@
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t00018_class:
+    type: class
+    glob:
+      - ../../tests/t00018/**.h
+      - ../../tests/t00018/**.cc
+    using_namespace:
+      - clanguml::t00018
+    include:
+      namespaces:
+        - clanguml::t00018

tests/t00018/t00018.cc

@@ -0,0 +1,22 @@
+#include "t00018.h"
+#include "t00018_impl.h"
+
+namespace clanguml {
+namespace t00018 {
+
+void widget::draw() const { pImpl->draw(*this); }
+
+void widget::draw() { pImpl->draw(*this); }
+
+widget::widget(int n)
+    : pImpl{std::make_unique<impl::widget>(n)}
+{
+}
+
+widget::widget(widget &&) = default;
+
+widget::~widget() = default;
+
+widget &widget::operator=(widget &&) = default;
+}
+}

tests/t00018/t00018.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <experimental/propagate_const>
+#include <iostream>
+#include <memory>
+
+namespace clanguml {
+namespace t00018 {
+
+namespace impl {
+class widget;
+}
+
+// Pimpl example based on https://en.cppreference.com/w/cpp/language/pimpl
+class widget {
+    std::unique_ptr<impl::widget> pImpl;
+
+public:
+    void draw() const;
+    void draw();
+    bool shown() const { return true; }
+    widget(int);
+    ~widget();
+
+    widget(widget &&);
+
+    widget(const widget &) = delete;
+    widget &operator=(widget &&);
+    widget &operator=(const widget &) = delete;
+};
+}
+}

tests/t00018/t00018_impl.cc

@@ -0,0 +1,26 @@
+#include "t00018_impl.h"
+#include "t00018.h"
+
+namespace clanguml {
+namespace t00018 {
+namespace impl {
+
+widget::widget(int n)
+    : n(n)
+{
+}
+
+void widget::draw(const clanguml::t00018::widget &w) const
+{
+    if (w.shown())
+        std::cout << "drawing a const widget " << n << '\n';
+}
+
+void widget::draw(const clanguml::t00018::widget &w)
+{
+    if (w.shown())
+        std::cout << "drawing a non-const widget " << n << '\n';
+}
+}
+}
+}

tests/t00018/t00018_impl.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "t00018.h"
+
+namespace clanguml {
+namespace t00018 {
+namespace impl {
+
+class widget {
+    int n;
+
+public:
+    void draw(const clanguml::t00018::widget &w) const;
+    void draw(const clanguml::t00018::widget &w);
+    widget(int n);
+};
+}
+}
+}

tests/t00018/test_case.h

@@ -0,0 +1,80 @@
+/**
+ * tests/t00018/test_case.cc
+ *
+ * Copyright (c) 2021 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("t00018", "[test-case][class]")
+{
+    auto [config, db] = load_config("t00018");
+
+    auto diagram = config.diagrams["t00018_class"];
+
+    REQUIRE(diagram->name == "t00018_class");
+
+    REQUIRE(diagram->include.namespaces.size() == 1);
+    REQUIRE_THAT(diagram->include.namespaces,
+        VectorContains(std::string{"clanguml::t00018"}));
+
+    REQUIRE(diagram->exclude.namespaces.size() == 0);
+
+    REQUIRE(diagram->should_include("clanguml::t00018::widget"));
+
+    auto model = generate_class_diagram(db, diagram);
+
+    REQUIRE(model.name == "t00018_class");
+
+    auto puml = generate_class_puml(diagram, model);
+    AliasMatcher _A(puml);
+
+    REQUIRE_THAT(puml, StartsWith("@startuml"));
+    REQUIRE_THAT(puml, EndsWith("@enduml\n"));
+    REQUIRE_THAT(puml, IsClass(_A("widget")));
+    /*
+    REQUIRE_THAT(puml, IsClass(_A("B")));
+    REQUIRE_THAT(puml, IsClass(_A("C")));
+    REQUIRE_THAT(puml, IsClass(_A("D")));
+    REQUIRE_THAT(puml, IsClass(_A("E")));
+    REQUIRE_THAT(puml, IsClass(_A("F")));
+    REQUIRE_THAT(puml, IsClass(_A("G")));
+    REQUIRE_THAT(puml, IsClass(_A("H")));
+    REQUIRE_THAT(puml, IsClass(_A("I")));
+    REQUIRE_THAT(puml, IsClass(_A("J")));
+    REQUIRE_THAT(puml, IsClass(_A("K")));
+    REQUIRE_THAT(puml, IsClass(_A("R")));
+
+    REQUIRE_THAT(puml, (IsField<Private>("some_int", "int")));
+    REQUIRE_THAT(puml, (IsField<Private>("some_int_pointer", "int*")));
+    REQUIRE_THAT(puml, (IsField<Private>("some_int_pointer_pointer", "int**")));
+
+    // Relationship members should not be rendered as part of this testcase
+    REQUIRE_THAT(puml, !(IsField<Private>("a", _A("A"))));
+    REQUIRE_THAT(puml, !(IsField<Private>("b", _A("B"))));
+
+    REQUIRE_THAT(puml, IsAggregation(_A("R"), _A("A"), "-a"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("B"), "-b"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("C"), "-c"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("D"), "-d"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("E"), "-e"));
+    REQUIRE_THAT(puml, IsAggregation(_A("R"), _A("F"), "-f"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("G"), "-g"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("H"), "-h"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("I"), "-i"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("J"), "-j"));
+    REQUIRE_THAT(puml, IsAssociation(_A("R"), _A("K"), "-k"));
+    */
+    save_puml(
+        "./" + config.output_directory + "/" + diagram->name + ".puml", puml);
+}

tests/test_cases.cc

@@ -121,6 +121,7 @@ using namespace clanguml::test::matchers;
 #include "t00015/test_case.h"
 #include "t00016/test_case.h"
 #include "t00017/test_case.h"
+#include "t00018/test_case.h"
 
 //
 // Sequence diagram tests

tests/test_cases.yaml

@@ -48,6 +48,9 @@ test_cases:
     - name: t00017
       title: Test include relations also as members flag
       description:
+    - name: t00018
+      title: Pimpl pattern
+      description:
   Sequence diagrams:
     - name: t20001
       title: Basic sequence diagram