Expect a Case-Insensitive Match

We had a testing issue this week when a button's text save changes! was rendering as SAVE CHANGES!, due to the CSS property text-transform: uppercase. How do you test that?

One technique is to use RSpec's match method, and include case insensitivity with i (explored earlier here):

> button_text = "foo"
=> "foo"
> expect(button_text).to match("FOO")
RSpec::Expectations::ExpectationNotMetError: expected "foo" to match "FOO"
# stuff
> expect(button_text).to match(/FOO/i)
=> true

We ultimately hard coded the expectation to match("FOO"), because allowing fOo and FoO seemed too permissive. But it remains an option.

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