Enable Flow typings on some of Execution tests

src/execution/__tests__/abstract-promise-test.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
+ * @flow strict
  */
 
 import { expect } from 'chai';
@@ -21,20 +21,28 @@ import {
 } from '../../';
 
 class Dog {
+  name: string;
+  woofs: boolean;
+
   constructor(name, woofs) {
     this.name = name;
     this.woofs = woofs;
   }
 }
 
 class Cat {
+  name: string;
+  meows: boolean;
+
   constructor(name, meows) {
     this.name = name;
     this.meows = meows;
   }
 }
 
 class Human {
+  name: string;
+
   constructor(name) {
     this.name = name;
   }

src/execution/__tests__/lists-test.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
+ * @flow strict
  */
 
 import { expect } from 'chai';
@@ -76,7 +76,7 @@ describe('Execute: Accepts any iterable as list value', () => {
     }),
   );
 
-  function getArgs() {
+  function getArgs(..._args) {
     return arguments;
   }
 

src/execution/__tests__/resolve-test.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
+ * @flow strict
  */
 
 import { expect } from 'chai';
@@ -70,6 +70,8 @@ describe('Execute: resolve function', () => {
     });
 
     class Adder {
+      _num: number;
+
       constructor(num) {
         this._num = num;
       }

src/execution/__tests__/union-interface-test.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
+ * @flow strict
  */
 
 import { expect } from 'chai';
@@ -23,20 +23,30 @@ import {
 } from '../../type';
 
 class Dog {
+  name: string;
+  barks: boolean;
+
   constructor(name, barks) {
     this.name = name;
     this.barks = barks;
   }
 }
 
 class Cat {
+  name: string;
+  meows: boolean;
+
   constructor(name, meows) {
     this.name = name;
     this.meows = meows;
   }
 }
 
 class Person {
+  name: string;
+  pets: ?Array<Dog | Cat>;
+  friends: ?Array<Dog | Cat | Person>;
+
   constructor(name, pets, friends) {
     this.name = name;
     this.pets = pets;

src/execution/__tests__/variables-test.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
+ * @flow strict
  */
 
 import inspect from '../../jsutils/inspect';
@@ -702,7 +702,7 @@ describe('Execute: Handles inputs', () => {
         ],
       });
 
-      expect(result.errors[0].originalError).not.to.equal(undefined);
+      expect(result).to.have.nested.property('errors[0].originalError');
     });
 
     it('reports error for non-provided variables for non-nullable inputs', () => {