Moved message to title of button

src/app/tabs/test-tab.js

@@ -87,20 +87,12 @@ module.exports = class TestTab extends ViewPlugin {
 
     if (eChecked) {
       checkAll.checked = true
-      this.testsSummary.hidden = true
-      this.testsOutput.hidden = true
       runBtn.removeAttribute('disabled')
+      runBtn.setAttribute('title', 'Run tests')
     } else if (!selectedTests.length) {
       checkAll.checked = false
-      this.testsOutput.hidden = true
-      this.testsSummary.hidden = false
-      this.testsSummary.innerHTML = ''
-      this.testsSummary.appendChild(yo`
-        <div class=${css.summaryTitle}>
-          <div class="text-info">No test file selected</div>
-        </div>
-      `)
       runBtn.setAttribute('disabled', 'disabled')
+      runBtn.setAttribute('title', 'No test file selected')
     }
   }