Give tests context for e.g. palette

[MaxSchaTUM]

If you test a component that uses palette props other than the default ones (primary, secondary,...) but instead something like palette.lightBlue.main the test will fail and say this is undefined. We somehow need to give the tests the same context as in App.tsx where these non-default palette props are being defined.

[MaxSchaTUM]

@an-p Didn't you fix this already?

[an-p]

@an-p Didn't you fix this already?

Sort of. I added an an export for the theme to App.tsx, so components can be wrapped inside ThemeProvider components in tests when needed:

render(
  <ThemeProvider theme={theme}>
    <ComponentToTest />
  </ThemeProvider>
);

It would probably be better if this could be done for all tests without adapting each test individually. A custom render function might work, but I'm not sure if the ThemeProvider introduces any side effects.