test: cover anonymous security references

src/test/kotlin/de/lancom/openapi/parser/EntityDescriptorSecurityTest.kt

@@ -0,0 +1,54 @@
+package de.lancom.openapi.parser
+
+import tools.jackson.module.kotlin.readValue
+import de.lancom.openapi.common.types.ComponentType
+import de.lancom.openapi.common.util.ValidParsedReference
+import de.lancom.openapi.common.util.yamlMapper
+import de.lancom.openapi.parser.entity.OpenApi
+import org.junit.jupiter.api.Assertions
+import org.junit.jupiter.api.Test
+
+class EntityDescriptorSecurityTest {
+    @Test
+    fun `anonymous security alternatives are not parsed as scheme references`() {
+        val given: OpenApi = yamlMapper.readValue(
+            """
+            openapi: 3.1.0
+            info:
+              title: Test
+              version: 1.0.0
+            security:
+              - {}
+              - apiKey: []
+            paths:
+              /profile:
+                get:
+                  security:
+                    - {}
+                    - bearerAuth: []
+                  responses:
+                    200:
+                      description: OK
+            components:
+              securitySchemes:
+                apiKey:
+                  type: apiKey
+                  in: header
+                  name: X-API-Key
+                bearerAuth:
+                  type: http
+                  scheme: bearer
+                unused:
+                  type: http
+                  scheme: basic
+            """.trimIndent()
+        )
+
+        val expected = setOf(
+            ValidParsedReference(ComponentType.SecuritySchemes, "apiKey"),
+            ValidParsedReference(ComponentType.SecuritySchemes, "bearerAuth"),
+        )
+
+        Assertions.assertEquals(expected, given.entityDescriptor.parsedReferences)
+    }
+}