fix eslint issues

test/unit/src/math/Quaternion.tests.js

@@ -713,10 +713,10 @@ export default QUnit.module( 'Maths', () => {
 
 		QUnit.test( "_onChange", ( assert ) => {
 
-
+			var b = false;
 			var f = function () {
 
-				var b = true;
+				b = true;
 
 			};
 
@@ -724,13 +724,18 @@ export default QUnit.module( 'Maths', () => {
 			a._onChange( f );
 			assert.ok( a._onChangeCallback === f, "Passed!" );
 
+			a._onChangeCallback();
+			assert.ok( b, "Passed!" );
+
+
 		} );
 
 		QUnit.test( "_onChangeCallback", ( assert ) => {
 
+			var b = false;
 			var f = function () {
 
-				var b = true;
+				b = true;
 
 			};
 
@@ -738,6 +743,10 @@ export default QUnit.module( 'Maths', () => {
 			a._onChangeCallback = f;
 			assert.ok( a._onChangeCallback === f, "Passed!" );
 
+
+			a._onChangeCallback();
+			assert.ok( b, "Passed!" );
+
 		} );
 
 		// OTHERS