Update regex replace to not require full path matching #1723
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Summary
The config option
moduleNameMapper
currently requires a full path match. This is because it is doing a regex replace on the original module name. This diff changes that so that instead we are using the mapped name directly. This makes it much easier to match any file of a specific type: like'\\.css'
. There will be a small backwards compatability possibility for matches that depended on the previously incorrect behavior. (I found one such case in the Pinterest codebase that was resolved by using requireActual instead, which was more correct anyway).The previous functionality is:
Before
After
Test plan
I ran the changes over the 900 Pinterest tests as well as the jest codebase tests. I also added a test to make sure that the path is used correctly.
#1624