From f57812bbb1550b26769a2b6860e31f3ea5ef285c Mon Sep 17 00:00:00 2001
From: Sebastian Silbermann <silbermann.sebastian@gmail.com>
Date: Fri, 5 Apr 2019 14:56:45 +0200
Subject: [PATCH] [test] Add undesired withStyles + generic props component
 behavior

---
 .../material-ui/test/typescript/styles.spec.tsx  | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/packages/material-ui/test/typescript/styles.spec.tsx b/packages/material-ui/test/typescript/styles.spec.tsx
index a772a2b12ed353..fd0b453bd610f0 100644
--- a/packages/material-ui/test/typescript/styles.spec.tsx
+++ b/packages/material-ui/test/typescript/styles.spec.tsx
@@ -14,7 +14,7 @@ import {
 import { ThemeProvider } from '@material-ui/styles';
 import Button from '@material-ui/core/Button';
 import { blue } from '@material-ui/core/colors';
-import { StandardProps } from '@material-ui/core';
+import { StandardProps, ButtonBase } from '@material-ui/core';
 
 // Shared types for examples
 interface ComponentProps extends WithStyles<typeof styles> {
@@ -463,3 +463,17 @@ withStyles(theme =>
   // Property 'nonDefaulted' is missing in type '{}'
   const MissingPropUsage = () => <StyledMyButton />; // $ExpectError
 }
+
+// https://github.com/mui-org/material-ui/issues/14586
+{
+  const styles = createStyles({
+    root: {
+      color: 'red',
+    },
+  });
+
+  const StyledButton = withStyles(styles)(Button);
+
+  // undesired
+  <StyledButton component="a" />; // $ExpectError
+}