http-test: simplify a bit

src/__tests__/http-test.js

@@ -13,19 +13,18 @@ import multer from 'multer';
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 import {
- buildSchema,
- GraphQLSchema,
- GraphQLObjectType,
- GraphQLNonNull,
- GraphQLString,
- GraphQLError,
- ValidationContext,
- BREAK,
+ type ASTVisitor,
+ type ValidationContext,
  Source,
- validate,
- execute,
+ GraphQLError,
+ GraphQLString,
+ GraphQLNonNull,
+ GraphQLObjectType,
+ GraphQLSchema,
  parse,
- type ASTVisitor,
+ execute,
+ validate,
+ buildSchema,
 } from 'graphql';
 
 import { graphqlHTTP } from '../index';
@@ -1939,9 +1938,7 @@ function runTests(server) {
  customValidateFn(schema, documentAST, validationRules) {
  const errors = validate(schema, documentAST, validationRules);
 
- const error = new GraphQLError(`custom error ${errors.length}`);
-
- return [error];
+ return [new GraphQLError(`custom error ${errors.length}`)];
  },
  }),
  );
@@ -1968,11 +1965,10 @@ function runTests(server) {
  context: ValidationContext,
  ): ASTVisitor {
  return {
- enter() {
+ Document() {
  context.reportError(
  new GraphQLError('AlwaysInvalidRule was really invalid!'),
  );
- return BREAK;
  },
  };
  };