Expectation: do two vectors contain the same values?

• expect_setequal(x, y) tests that every element of x occurs in y, and that every element of y occurs in x.

• expect_mapequal(x, y) tests that x and y have the same names, and that x[names(y)] equals x.

expect_setequal(object, expected)

expect_mapequal(object, expected)

Arguments

object	Computation and value to compare it to. Both arguments supports limited unquoting to make it easier to generate readable failures within a function or for loop. See quasi_label for more details.
expected	Computation and value to compare it to. Both arguments supports limited unquoting to make it easier to generate readable failures within a function or for loop. See quasi_label for more details.

Details

Note that expect_setequal() ignores names, and you will be warned if both object and expected have them.

Examples

expect_setequal(letters, rev(letters))
show_failure(expect_setequal(letters[-1], rev(letters)))
#> Failed expectation:
#> rev(letters)[26] absent from letters[-1]

x <- list(b = 2, a = 1)
expect_mapequal(x, list(a = 1, b = 2))
show_failure(expect_mapequal(x, list(a = 1)))
#> Failed expectation:
#> Names absent from `expected`: "b", 
show_failure(expect_mapequal(x, list(a = 1, b = "x")))
#> Failed expectation:
#> act$val[exp_nms] not equal to exp$val.
#> Component “b”: Modes: numeric, character
#> Component “b”: target is numeric, current is character
show_failure(expect_mapequal(x, list(a = 1, b = 2, c = 3)))
#> Failed expectation:
#> Names absent from `object`: "c",