Better way to say: "Coronavirus is a case for an emergency fund"

I have this word in my mind that I believe is used for occasions like the current pandemic and saving or building up an emergency fund. You could say something like:

The coronavirus crisis is [X] for an emergency fund.

But I just can't put my finger on the word that is usually used. I believe it's somewhere along the lines of "a case" but I don't think it's that exactly.

Solution 1:

makes a case

to argue that something is the best thing to do, giving your reasons:

-Cambridge online

...from your question:

I believe it's somewhere along the lines of "a case"

The coronavirus crisis makes a case for (having) an emergency fund.