Added test case for context filter outward direction (#274)

src/common/model/diagram_filter.h

@@ -517,12 +517,19 @@ private:
             // elements
             for (const relationship &rel : el.get().relationships()) {
                 // At the moment aggregation and composition are added in the
-                // model in reverse direction so we don't consider them here
-                if (rel.type() == relationship_t::kAggregation ||
-                    rel.type() == relationship_t::kComposition) {
+                // model in reverse direction, so we don't consider them here
+                if (context_cfg.direction ==
+                        config::context_direction_t::inward &&
+                    (rel.type() == relationship_t::kAggregation ||
+                        rel.type() == relationship_t::kComposition)) {
+                    continue;
+                }
+                if (context_cfg.direction ==
+                        config::context_direction_t::outward &&
+                    (rel.type() != relationship_t::kAggregation &&
+                        rel.type() != relationship_t::kComposition)) {
                     continue;
                 }
-
                 for (const auto &element_id : effective_context) {
                     if (d.should_include(rel.type()) &&
                         rel.destination() == element_id)

tests/t00077/.clang-uml

@@ -0,0 +1,14 @@
+diagrams:
+  t00077_class:
+    type: class
+    glob:
+      - t00077.cc
+    include:
+      namespaces:
+        - clanguml::t00077
+      context:
+        - match:
+            radius: 2
+            pattern: clanguml::t00077::B
+            direction: outward
+    using_namespace: clanguml::t00077

tests/t00077/t00077.cc

@@ -0,0 +1,69 @@
+namespace clanguml {
+namespace t00077 {
+
+enum Color { red, green, blue };
+
+struct F;
+struct GG { };
+struct G {
+    GG gg;
+};
+struct GGG {
+    G g;
+};
+struct H { };
+struct J { };
+
+struct Base { };
+
+struct A : public Base { };
+
+struct B : public A {
+    F *f;
+    Color c;
+    G g;
+    /// @uml{composition[0..1:1..*]}
+    J j;
+
+    void a(H *h) { (void)h; }
+};
+
+struct C : public B { };
+
+struct D : public C { };
+
+struct EE { };
+
+struct E {
+    B *b;
+    EE *ee;
+};
+
+struct EEE {
+    E *e;
+};
+
+struct FF { };
+struct F {
+    FF *ff;
+};
+struct FFF {
+    F *f;
+};
+
+struct I {
+    void i(B *b) { (void)b; }
+};
+
+struct KKK { };
+
+struct K {
+    B b;
+    KKK kkk;
+};
+
+struct KK {
+    K k;
+};
+}
+}

tests/t00077/test_case.h

@@ -0,0 +1,51 @@
+/**
+ * tests/t00077/test_case.h
+ *
+ * Copyright (c) 2021-2024 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("t00077")
+{
+    using namespace clanguml::test;
+    using namespace std::string_literals;
+
+    auto [config, db, diagram, model] =
+        CHECK_CLASS_MODEL("t00077", "t00077_class");
+
+    CHECK_CLASS_DIAGRAM(*config, diagram, *model, [](const auto &src) {
+        REQUIRE(IsClass(src, "B"));
+        REQUIRE(IsClass(src, "Base"));
+        REQUIRE(IsClass(src, "A"));
+        REQUIRE(IsClass(src, "F"));
+        REQUIRE(IsClass(src, "H"));
+        REQUIRE(IsClass(src, "FF"));
+        REQUIRE(IsClass(src, "K"));
+        REQUIRE(IsClass(src, "KK"));
+
+        REQUIRE(!IsClass(src, "C"));
+        REQUIRE(!IsClass(src, "D"));
+        REQUIRE(!IsClass(src, "E"));
+        REQUIRE(!IsClass(src, "EE"));
+        REQUIRE(!IsClass(src, "EEE"));
+        REQUIRE(!IsClass(src, "FFF"));
+        REQUIRE(!IsClass(src, "G"));
+        REQUIRE(!IsClass(src, "GG"));
+        REQUIRE(!IsClass(src, "I"));
+        REQUIRE(!IsClass(src, "J"));
+        REQUIRE(!IsClass(src, "KKK"));
+        REQUIRE(!IsEnum(src, "Color"));
+        REQUIRE(!IsClass(src, "GGG"));
+    });
+}

tests/test_cases.cc

@@ -550,6 +550,7 @@ void CHECK_INCLUDE_DIAGRAM(const clanguml::config::config &config,
 #include "t00075/test_case.h"
 #endif
 #include "t00076/test_case.h"
+#include "t00077/test_case.h"
 
 ///
 /// Sequence diagram tests

tests/test_cases.yaml

@@ -224,6 +224,10 @@ test_cases:
       description:
     - name: t00076
       title: Test case for context diagram with inward direction flag
+      description:
+    - name: t00077
+      title: Test case for context diagram with outward direction flag
+      description:
   Sequence diagrams:
     - name: t20001
       title: Basic sequence diagram test case