fix: multipart enum initial value not set (#7004)

src/core/plugins/oas3/components/request-body.jsx

@@ -155,11 +155,18 @@ const RequestBody = ({
               const currentValue = requestBodyValue.getIn([key, "value"])
               const currentErrors = requestBodyValue.getIn([key, "errors"]) || requestBodyErrors
               const included = requestBodyInclusionSetting.get(key) || false
-              let hasNonEmptyInitialVal = prop.has("default") || prop.has("example") || prop.hasIn(["items", "example"]) || prop.hasIn(["items", "default"]) || prop.has("enum") && prop.get("enum").size === 1
+
+              const useInitialValFromSchemaSamples = prop.has("default")
+                || prop.has("example")
+                || prop.hasIn(["items", "example"])
+                || prop.hasIn(["items", "default"])
+              const useInitialValFromEnum = prop.has("enum") && (prop.get("enum").size === 1 || required)
+              const useInitialValue = useInitialValFromSchemaSamples || useInitialValFromEnum
+              
               let initialValue = ""
-              if(type === "array" && !hasNonEmptyInitialVal) {
+              if(type === "array" && !useInitialValue) {
                 initialValue = []
-              } else if (hasNonEmptyInitialVal) {
+              } else if (useInitialValue) {
                 // TODO: what about example or examples from requestBody could be passed as exampleOverride
                 initialValue = getSampleSchema(prop, false, {
                   includeWriteOnly: true

test/e2e-cypress/static/documents/features/request-body/multipart/enum.yaml

@@ -0,0 +1,29 @@
+openapi: 3.0.3
+info:
+  title: asd
+  version: 0.0.1
+paths:
+  /test:
+    post:
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              $ref: '#/components/schemas/TestBody'
+      responses:
+        200:
+          description: ok
+components:
+  schemas:
+    TestBody:
+      required:
+        - test_enum
+      type: object
+      properties:
+        test_enum:
+          allOf:
+            - $ref: "#/components/schemas/TestEnum"
+    TestEnum:
+      enum:
+        - A
+        - B

test/e2e-cypress/tests/features/oas3-user-edit-request-body-flows.js

@@ -1,12 +1,16 @@
-const getRequestBodyFromCY = (page = null) =>
-  (page || cy.visit(
+function getExpandedTryout(page = null, operationId = "#operations-pet-addPet") {
+  return (page || cy.visit(
     "/?url=/documents/features/petstore-only-pet.openapi.yaml",
   ))
-    .get("#operations-pet-addPet")
+    .get(operationId)
     .click()
     // Expand Try It Out
     .get(".try-out__btn")
     .click()
+}
+
+const getRequestBodyFromCY = (page = null, operationId = "#operations-pet-addPet") =>
+  getExpandedTryout(page, operationId)
     // get textarea
     .get(".opblock-body .opblock-section .opblock-section-request-body .body-param textarea")
 
@@ -84,4 +88,19 @@ describe("OAS3 Request Body user edit flows", () => {
           })
       })
   })
+  describe("multipart/", () => {
+    // Case: User wants to execute operation with media-type multipart/ with a enum property. The user expects the first enum value to be used when execuded.
+    it("should use the first enum value on execute if not changed by user (#6976)", () => {
+      // test/e2e-cypress/static/documents/features/request-body/multipart/enum.yaml
+      getExpandedTryout(
+        cy.visit(
+          "/?url=/documents/features/request-body/multipart/enum.yaml",
+        ), "#operations-default-post_test")
+        .get(".execute")
+        .click()
+        // Assert on the request URL
+        .get(".curl")
+        .contains("test_enum=A")
+    })
+  })
 })