Tests to make sure facet_wrap() and facet_grid() can facet by date #3330
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In previous versions of ggplot2, it was possible to facet by a date variable. This was temporarily broken (#3313) and will be fixed by #3327. It should always be possible to use
facet_wrap()
andfacet_grid()
with date variables, and as @yutannihilation pointed out, there is no test to enforce this behaviour. This PR adds such a test (there are already similar tests intests/testthat/test-facet-map.r
). This test currently fails as #3327 isn't merged.