don't test graphql type object validation repeatedly (github#26197)

Author: peterbe

tests/content/graphql.js

@@ -1,5 +1,3 @@
-import fs from 'fs'
-import path from 'path'
 import readJsonFile from '../../lib/read-json-file.js'
 import {
   schemaValidator,
@@ -29,15 +27,21 @@ describe('graphql json files', () => {
   })
 
   test('schemas object validation', () => {
+    // The typeObj is repeated thousands of times in each .json file
+    // so use a cache of which we've already validated to speed this
+    // test up significantly.
+    const typeObjsTested = new Set()
     graphqlVersions.forEach((version) => {
-      const schemaJsonPerVersion = JSON.parse(
-        fs.readFileSync(path.join(process.cwd(), `lib/graphql/static/schema-${version}.json`))
-      )
+      const schemaJsonPerVersion = readJsonFile(`lib/graphql/static/schema-${version}.json`)
       // all graphql types are arrays except for queries
       graphqlTypes
         .filter((type) => type !== 'queries')
         .forEach((type) => {
           schemaJsonPerVersion[type].forEach((typeObj) => {
+            const key = JSON.stringify(typeObj) + type
+            if (typeObjsTested.has(key)) return
+            typeObjsTested.add(key)
+
             const { valid, errors } = revalidator.validate(typeObj, schemaValidator[type])
             const errorMessage = JSON.stringify(errors, null, 2)
             expect(valid, errorMessage).toBe(true)