fixes

state_machine_exporter/src/test/java/click/kamil/springstatemachineexporter/analysis/service/HeuristicCallGraphEngineTest.java

@@ -2704,4 +2704,53 @@ class HeuristicCallGraphEngineTest {
         org.assertj.core.api.Assertions.assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
             .containsExactly("CORRECT_EVENT");
     }
-}
+    @Test
+    void shouldResolveEnumValueOfFromString(@TempDir Path tempDir) throws IOException {
+        String source = """
+                package com.example;
+                public class Endpoint {
+                    private OrderService service;
+                    public void trigger(String eventString) {
+                        service.doSomething(eventString);
+                    }
+                }
+                
+                class OrderService {
+                    public void doSomething(String str) {
+                        MyEvents event = mapToEnum(str);
+                        sendEvent(event);
+                    }
+                    private MyEvents mapToEnum(String str) {
+                        return MyEvents.valueOf(str);
+                    }
+                    public void sendEvent(MyEvents e) {}
+                }
+                
+                enum MyEvents { A, B }
+                """;
+        Files.writeString(tempDir.resolve("Endpoint.java"), source);
+
+        CodebaseContext context = new CodebaseContext();
+        context.scan(tempDir);
+
+        HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
+
+        EntryPoint entryPoint = EntryPoint.builder()
+                .className("com.example.Endpoint")
+                .methodName("trigger")
+                .build();
+
+        TriggerPoint trigger = TriggerPoint.builder()
+                .className("com.example.OrderService")
+                .methodName("sendEvent")
+                .event("e")
+                .build();
+
+        List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
+
+        assertThat(chains).hasSize(1);
+        CallChain chain = chains.get(0);
+        assertThat(chain.getTriggerPoint().getPolymorphicEvents())
+            .containsExactlyInAnyOrder("MyEvents.A", "MyEvents.B");
+    }
+}