context("data.frame constructor")
test_that("new_data_frame returns a data.frame of expected dimensions", {
df <- new_data_frame(list(x = 1:3, y = c("a", "b", "c")))
expect_is(df, "data.frame")
expect_equal(nrow(df), 3)
expect_equal(ncol(df), 2)
expect_named(df, c("x", "y"))
})
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