          `Material-UI: You are using a variant value \`test\` for which you didn't define styles.`,
          `Please create a new variant matcher in your theme for this variant. To learn more about matchers visit https://next.material-ui.com/r/custom-component-variants.`,
 diff --git a/packages/material-ui/src/Autocomplete/Autocomplete.test.js b/packages/material-ui/src/Autocomplete/Autocomplete.test.js
-index 92a2ce6ebf..742df9b951 100644
+index cd02208b63..f3beebd4bc 100644
 --- a/packages/material-ui/src/Autocomplete/Autocomplete.test.js
 +++ b/packages/material-ui/src/Autocomplete/Autocomplete.test.js
-@@ -1169,8 +1169,6 @@ describe('<Autocomplete />', () => {
+@@ -1181,10 +1181,6 @@ describe('<Autocomplete />', () => {
          fireEvent.change(textbox, { target: { value: 'a' } });
          fireEvent.keyDown(textbox, { key: 'Enter' });
        }).toErrorDev([
-         'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
--        // strict mode renders twice
 -        'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
-         'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
 -        // strict mode renders twice
 -        'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
+-        // strict mode renders twice
          'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
          'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
-@@ -1223,9 +1221,6 @@ describe('<Autocomplete />', () => {
+         'Material-UI: The `getOptionLabel` method of Autocomplete returned undefined instead of a string',
+@@ -1238,9 +1234,6 @@ describe('<Autocomplete />', () => {
            />,
          );
        }).toWarnDev([

 
     it('should not be called during the same event that mounted the ClickAwayListener', () => {
diff --git a/packages/material-ui/src/Tabs/Tabs.test.js b/packages/material-ui/src/Tabs/Tabs.test.js
index d629210cde..f53f50970f 100644
--- a/packages/material-ui/src/Tabs/Tabs.test.js
+++ b/packages/material-ui/src/Tabs/Tabs.test.js
@@ -90,9 +90,6 @@ describe('<Tabs />', () => {
       expect(() => {
         render(<Tabs value={0} centered variant="scrollable" />);
       }).toErrorDev([

         'Material-UI: You can not use the `centered={true}` and `variant="scrollable"`',
       ]);
diff --git a/packages/material-ui/src/TextareaAutosize/TextareaAutosize.test.js b/packages/material-ui/src/TextareaAutosize/TextareaAutosize.test.js
index cca7f0ee6c..5a878b6462 100644
--- a/packages/material-ui/src/TextareaAutosize/TextareaAutosize.test.js
+++ b/packages/material-ui/src/TextareaAutosize/TextareaAutosize.test.js
@@ -286,12 +286,7 @@ describe('<TextareaAutosize />', () => {
 
         expect(() => {
           forceUpdate();
