Minor formatting

Author: wojtekmaj

src/Calendar/Navigation.spec.jsx

@@ -159,10 +159,7 @@ describe('Navigation', () => {
 
     const arrows = container.querySelectorAll('button.react-calendar__navigation__arrow');
 
-    const prev2 = arrows[0];
-    const prev = arrows[1];
-    const next = arrows[2];
-    const next2 = arrows[3];
+    const [prev2, prev, next, next2] = arrows;
 
     fireEvent.click(prev2);
     fireEvent.click(prev);
@@ -367,8 +364,7 @@ describe('Navigation', () => {
 
     const arrows = container.querySelectorAll('button.react-calendar__navigation__arrow');
 
-    const prev2 = arrows[0];
-    const prev = arrows[1];
+    const [prev2, prev] = arrows;
 
     expect(prev2).toBeDisabled();
     expect(prev).toBeDisabled();
@@ -381,8 +377,7 @@ describe('Navigation', () => {
 
     const arrows = container.querySelectorAll('button.react-calendar__navigation__arrow');
 
-    const prev2 = arrows[0];
-    const prev = arrows[1];
+    const [prev2, prev] = arrows;
 
     expect(prev2).toBeDisabled();
     expect(prev).toBeDisabled();
@@ -454,8 +449,7 @@ describe('Navigation', () => {
 
     const arrows = container.querySelectorAll('button.react-calendar__navigation__arrow');
 
-    const prev2 = arrows[0];
-    const prev = arrows[1];
+    const [prev2, prev] = arrows;
 
     expect(prev2).toBeDisabled();
     expect(prev).toBeDisabled();

src/MonthView/WeekNumbers.spec.jsx

@@ -110,9 +110,9 @@ describe('.react-calendar__month-view__weekNumbers', () => {
       />,
     );
 
-    const children = container.querySelectorAll('button.react-calendar__tile');
+    const firstChild = container.querySelector('button.react-calendar__tile');
+    fireEvent.click(firstChild);
 
-    fireEvent.click(children[0]);
     expect(onClickWeekNumber).toHaveBeenCalledWith(52, new Date(2016, 11, 26), expect.any(Object));
   });
 
@@ -122,9 +122,9 @@ describe('.react-calendar__month-view__weekNumbers', () => {
       <WeekNumbers {...defaultProps} calendarType="US" onClickWeekNumber={onClickWeekNumber} />,
     );
 
-    const children = container.querySelectorAll('button.react-calendar__tile');
+    const firstChild = container.querySelector('button.react-calendar__tile');
+    fireEvent.click(firstChild);
 
-    fireEvent.click(children[0]);
     expect(onClickWeekNumber).toHaveBeenCalledWith(1, new Date(2017, 0, 1), expect.any(Object));
   });
 });