tests: remove extra spaces, unneeded arrays and add missing newlines

js/tests/unit/dom/selector-engine.spec.js

@@ -197,9 +197,7 @@ describe('SelectorEngine', () => {
     })
 
     it('should return not return elements with negative tab index', () => {
-      fixtureEl.innerHTML = [
-        '<button tabindex="-1">lorem</button>'
-      ].join('')
+      fixtureEl.innerHTML = '<button tabindex="-1">lorem</button>'
 
       const expectedElements = []
 
@@ -207,9 +205,7 @@ describe('SelectorEngine', () => {
     })
 
     it('should return contenteditable elements', () => {
-      fixtureEl.innerHTML = [
-        '<div contenteditable="true">lorem</div>'
-      ].join('')
+      fixtureEl.innerHTML = '<div contenteditable="true">lorem</div>'
 
       const expectedElements = [fixtureEl.querySelector('[contenteditable="true"]')]
 
@@ -217,9 +213,7 @@ describe('SelectorEngine', () => {
     })
 
     it('should not return disabled elements', () => {
-      fixtureEl.innerHTML = [
-        '<button disabled="true">lorem</button>'
-      ].join('')
+      fixtureEl.innerHTML = '<button disabled="true">lorem</button>'
 
       const expectedElements = []
 
@@ -227,9 +221,7 @@ describe('SelectorEngine', () => {
     })
 
     it('should not return invisible elements', () => {
-      fixtureEl.innerHTML = [
-        '<button style="display:none;">lorem</button>'
-      ].join('')
+      fixtureEl.innerHTML = '<button style="display:none;">lorem</button>'
 
       const expectedElements = []