init project

test/regressions/fixtures/StepLabel/AlternativeLabelOptionalText.js

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+import * as React from 'react';
+import Box from '@mui/material/Box';
+import Stepper from '@mui/material/Stepper';
+import Step from '@mui/material/Step';
+import StepLabel from '@mui/material/StepLabel';
+
+const steps = ['Select master blaster campaign settings', 'Create an ad group', 'Create an ad'];
+
+export default function AlternativeLabelOptionalText() {
+  return (
+    <Box sx={{ width: '100%' }}>
+      <Stepper activeStep={1} alternativeLabel>
+        {steps.map((label) => (
+          <Step key={label} expanded>
+            <StepLabel optional="optional">{label}</StepLabel>
+          </Step>
+        ))}
+      </Stepper>
+    </Box>
+  );
+}

test/regressions/fixtures/StepLabel/NoShrinkIcon.js

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+import * as React from 'react';
+import Stepper from '@mui/material/Stepper';
+import Step from '@mui/material/Step';
+import StepLabel from '@mui/material/StepLabel';
+
+function TestIcon() {
+  return <div style={{ border: '1px solid red' }}>should not shrink</div>;
+}
+
+const steps = ['Step 1', 'Step 2'];
+
+export default function NoShrinkIcon() {
+  return (
+    <Stepper sx={{ width: 200 }}>
+      {steps.map((label) => (
+        <Step key={label}>
+          <StepLabel StepIconComponent={TestIcon} sx={{ width: '1px' }}>
+            {label}
+          </StepLabel>
+        </Step>
+      ))}
+    </Stepper>
+  );
+}