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assert_that failure for inherits on multiple classes fails #73

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#74
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assert_that failure for inherits on multiple classes fails#73
#74
@MichaelChirico

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@MichaelChirico
MichaelChirico
opened on Dec 23, 2021
assert_that(inherits(NULL, c("a", "b")))
Error in stop(assertError(attr(res, "msg"))) : bad error message

The issue is here, where what is assumed length-1:

assertthat/R/base-is.r

Lines 45 to 49 in 50dc4b0

# Catch all
base_fs$inherits <- function(call, env) {
class <- eval(call$what, env)
paste0(deparse(call$x), " does not inherit from class ", class)
}

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