Added root namespace test case

tests/t00045/.clang-uml

@@ -0,0 +1,10 @@
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t00045_class:
+    type: class
+    glob:
+      - ../../tests/t00045/t00045.cc
+    exclude:
+      namespaces:
+        - std

tests/t00045/t00045.cc

@@ -0,0 +1,31 @@
+class A { };
+
+class AA { };
+
+namespace ns1 {
+
+class A { };
+
+namespace ns2 {
+
+class A { };
+
+class B : public A { };
+
+class C : public ns1::A { };
+
+class D : public ns1::ns2::A { };
+
+class E : public ::A { };
+
+class R {
+public:
+    A *a;
+    ns1::A *ns1_a;
+    ns1::ns2::A *ns1_ns2_a;
+    ::A *root_a;
+
+    void foo(::AA &aa) { (void)aa; }
+};
+}
+}

tests/t00045/test_case.h

@@ -0,0 +1,63 @@
+/**
+ * tests/t00045/test_case.cc
+ *
+ * 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("t00045", "[test-case][class]")
+{
+    auto [config, db] = load_config("t00045");
+
+    auto diagram = config.diagrams["t00045_class"];
+
+    REQUIRE(diagram->name == "t00045_class");
+
+    auto model = generate_class_diagram(db, diagram);
+
+    REQUIRE(model->name() == "t00045_class");
+    REQUIRE(model->should_include("clanguml::t00045::ns1::ns2::A"));
+
+    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("A")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::A")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::ns2::A")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::ns2::B")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::ns2::C")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::ns2::D")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::ns2::E")));
+    REQUIRE_THAT(puml, IsClass(_A("ns1::ns2::R")));
+
+    REQUIRE_THAT(puml, IsBaseClass(_A("ns1::ns2::A"), _A("ns1::ns2::B")));
+    REQUIRE_THAT(puml, IsBaseClass(_A("ns1::A"), _A("ns1::ns2::C")));
+    REQUIRE_THAT(puml, IsBaseClass(_A("ns1::ns2::A"), _A("ns1::ns2::D")));
+    REQUIRE_THAT(puml, IsBaseClass(_A("A"), _A("ns1::ns2::E")));
+
+    REQUIRE_THAT(
+        puml, IsAssociation(_A("ns1::ns2::R"), _A("ns1::ns2::A"), "+a"));
+    REQUIRE_THAT(
+        puml, IsAssociation(_A("ns1::ns2::R"), _A("ns1::A"), "+ns1_a"));
+    REQUIRE_THAT(puml,
+        IsAssociation(_A("ns1::ns2::R"), _A("ns1::ns2::A"), "+ns1_ns2_a"));
+    REQUIRE_THAT(puml, IsAssociation(_A("ns1::ns2::R"), _A("A"), "+root_a"));
+
+    REQUIRE_THAT(puml, IsDependency(_A("ns1::ns2::R"), _A("AA")));
+
+    save_puml(
+        "./" + config.output_directory() + "/" + diagram->name + ".puml", puml);
+}

tests/test_cases.cc

@@ -226,6 +226,7 @@ using namespace clanguml::test::matchers;
 #include "t00042/test_case.h"
 #include "t00043/test_case.h"
 #include "t00044/test_case.h"
+#include "t00045/test_case.h"
 
 //
 // Sequence diagram tests

tests/test_cases.yaml

@@ -129,6 +129,9 @@ test_cases:
     - name: t00044
       title: Test case for inner type aliases with parent class template args
       description:
+    - name: t00045
+      title: Test case for root namespace handling
+      description:
   Sequence diagrams:
     - name: t20001
       title: Basic sequence diagram test case

tests/test_util.cc

@@ -33,6 +33,11 @@ TEST_CASE("Test split", "[unit-test]")
 
     CHECK(split("", " ") == C{""});
     CHECK(split("ABCD", " ") == C{"ABCD"});
+    CHECK(split("::A", "::") == C{"A"});
+    CHECK(split("::", "::") == C{});
+    CHECK(split("A::", "::") == C{"A"});
+    CHECK(split(":1", ":") == C{"1"});
+    CHECK(split(":1", ":", false) == C{"", "1"});
 
     CHECK(split("std::vector::detail", "::") == C{"std", "vector", "detail"});