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## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## ----message = FALSE----------------------------------------------------------
library(testthat)
local_edition(3)
## -----------------------------------------------------------------------------
test_that("I can use the 3rd edition", {
local_edition(3)
expect_true(TRUE)
})
## -----------------------------------------------------------------------------
test_that("I want to use the 2nd edition", {
local_edition(2)
expect_true(TRUE)
})
## -----------------------------------------------------------------------------
f <- function() {
warning("First warning")
warning("Second warning")
warning("Third warning")
}
local_edition(2)
expect_warning(f(), "First")
## -----------------------------------------------------------------------------
local_edition(3)
expect_warning(f(), "First")
## -----------------------------------------------------------------------------
f() %>%
expect_warning("First") %>%
expect_warning("Second") %>%
expect_warning("Third")
f() %>%
expect_warning("First") %>%
suppressWarnings()
## -----------------------------------------------------------------------------
test_that("f() produces expected outputs/messages/warnings", {
expect_snapshot(f())
})
## ----error = TRUE-------------------------------------------------------------
try({
f1 <- factor(letters[1:3])
f2 <- ordered(letters[1:3], levels = letters[1:4])
local_edition(2)
expect_equal(f1, f2)
local_edition(3)
expect_equal(f1, f2)
})
## ----error = TRUE-------------------------------------------------------------
try({
dt1 <- dt2 <- ISOdatetime(2020, 1, 2, 3, 4, 0)
attr(dt1, "tzone") <- ""
attr(dt2, "tzone") <- Sys.timezone()
local_edition(2)
expect_equal(dt1, dt2)
local_edition(3)
expect_equal(dt1, dt2)
})
|
