fix(utils): disallow schema type array value string (swagger-api#10691)

* fix(utils): disallow schema type array value string

Author: lukaszzazulak

src/core/utils/index.js

@@ -466,7 +466,6 @@ function validateValueBySchema(value, schema, requiredByParam, bypassRequiredChe
   let stringCheck = type === "string" && value
   let arrayCheck = type === "array" && Array.isArray(value) && value.length
   let arrayListCheck = type === "array" && Im.List.isList(value) && value.count()
-  let arrayStringCheck = type === "array" && typeof value === "string" && value
   let fileCheck = type === "file" && value instanceof win.File
   let booleanCheck = type === "boolean" && (value || value === false)
   let numberCheck = type === "number" && (value || value === 0)
@@ -475,7 +474,7 @@ function validateValueBySchema(value, schema, requiredByParam, bypassRequiredChe
   let objectStringCheck = type === "object" && typeof value === "string" && value
 
   const allChecks = [
-    stringCheck, arrayCheck, arrayListCheck, arrayStringCheck, fileCheck,
+    stringCheck, arrayCheck, arrayListCheck, fileCheck,
     booleanCheck, numberCheck, integerCheck, objectCheck, objectStringCheck,
   ]
 

test/e2e-cypress/e2e/features/try-it-out-schema-type-array-example-type-string.cy.js

@@ -0,0 +1,12 @@
+describe("Try it out with schema type array but example type string", () => {
+    it("shows a validation error message when Execute is clicked", () => {
+      cy
+        .visit("?tryItOutEnabled=true&url=/documents/features/try-it-out-schema-type-array-example-type-string.yaml")
+        .get("#operations-default-get_")
+        .click()
+        .get(".btn.execute")
+        .click()
+        .get(".validation-errors")
+        .should("exist")
+    })
+  })

test/e2e-cypress/static/documents/features/try-it-out-schema-type-array-example-type-string.yaml

@@ -0,0 +1,23 @@
+openapi: 3.0.3
+info:
+  title: test
+  version: 1.0.0
+paths:
+  /:
+    get:
+      parameters:
+        - in: query
+          name: test
+          required: true
+          schema:
+            type: array
+            example: 'test1'
+            items:
+              type: string
+              enum:
+                - 'test1'
+                - 'test2'
+                - 'test3'
+      responses:
+        default:
+          description: ok

test/unit/core/utils.js

@@ -749,7 +749,7 @@ describe("utils", () => {
         type: "array"
       }
       value = "[1]"
-      assertValidateParam(param, value, [])
+      assertValidateParam(param, value, ["Required field is not provided"])
 
       // valid array, items match type
       param = {