fix(callbacks): display all defined callbacks (#9223)

Refs #9222

src/core/plugins/oas3/spec-extensions/selectors.js

@@ -58,22 +58,27 @@ export const callbacksOperations = onlyOAS3(
         .reduce((allOperations, callback, callbackName) => {
           if (!Map.isMap(callback)) return allOperations
 
-          return callback.reduce((callbackOperations, pathItem, expression) => {
-            if (!Map.isMap(pathItem)) return callbackOperations
+          const callbackOperations = callback.reduce(
+            (callbackOps, pathItem, expression) => {
+              if (!Map.isMap(pathItem)) return callbackOps
 
-            const pathItemOperations = pathItem
-              .entrySeq()
-              .filter(([key]) => validOperationMethods.includes(key))
-              .map(([method, operation]) => ({
-                operation: Map({ operation }),
-                method,
-                path: expression,
-                callbackName,
-                specPath: specPath.concat([callbackName, expression, method]),
-              }))
+              const pathItemOperations = pathItem
+                .entrySeq()
+                .filter(([key]) => validOperationMethods.includes(key))
+                .map(([method, operation]) => ({
+                  operation: Map({ operation }),
+                  method,
+                  path: expression,
+                  callbackName,
+                  specPath: specPath.concat([callbackName, expression, method]),
+                }))
 
-            return callbackOperations.concat(pathItemOperations)
-          }, List())
+              return callbackOps.concat(pathItemOperations)
+            },
+            List()
+          )
+
+          return allOperations.concat(callbackOperations)
         }, List())
         .groupBy((operationDTO) => operationDTO.callbackName)
         .map((operations) => operations.toArray())

test/e2e-cypress/e2e/features/oas3-callbacks.cy.js

@@ -0,0 +1,19 @@
+/**
+ * Related to // https://github.com/swagger-api/swagger-ui/issues/9222.
+ */
+
+describe("OpenAPI 3.0 Callbacks", () => {
+  it("should render all defined callbacks", () => {
+    cy.visit(
+      "/?url=/documents/features/oas3-callbacks.yaml"
+    )
+      .get("#operations-Device-register")
+      .click()
+      .get(".opblock-section-header .tab-item.false")
+      .click()
+      .get("#operations-callbacks-callbackOne")
+      .should("be.visible")
+      .get("#operations-callbacks-callbackTwo")
+      .should("be.visible")
+  })
+})

test/e2e-cypress/static/documents/features/oas3-callbacks.yaml

@@ -0,0 +1,41 @@
+openapi: 3.0.0
+servers: []
+info:
+  version: "1.0.0"
+  title: home-iot-api
+  description: The API
+paths:
+  /devices:
+    get:
+      callbacks:
+        callbackOne:
+          'callbackOne':
+            get:
+              operationId: callbackOne
+              responses:
+                '200':
+                  $ref: '#/components/schemas/ApiResponse'
+        callbackTwo:
+          'callbackTwo':
+            get:
+              operationId: callbackTwo
+              responses:
+                '200':
+                  $ref: '#/components/schemas/ApiResponse'
+      tags:
+        - Device
+      operationId: register
+      responses:
+        '200':
+          description: successfully registered device
+components:
+  schemas:
+    ApiResponse:
+      type: object
+      properties:
+        code:
+          type: integer
+          format: int32
+        message:
+          type: string
+          example: everything is ok