Nothing
test_that("with_envvar sets and unsets variables", {
# Make sure the "set_env_testvar" environment var is not set.
Sys.unsetenv("set_env_testvar")
expect_false("set_env_testvar" %in% names(Sys.getenv()))
# Use with_envvar (which calls set_envvar) to temporarily set it to 1
expect_identical("1", with_envvar(c("set_env_testvar" = 1),
Sys.getenv("set_env_testvar")))
# set_env_testvar shouldn't stay in the list of environment vars
expect_false("set_env_testvar" %in% names(Sys.getenv()))
})
test_that("with_envvar respects suffix and prefix", {
nested <- function(op1, op2) {
with_envvar(c(A = 1), action = op1,
with_envvar(c(A = 2), action = op2,
Sys.getenv("A")[[1]]
)
)
}
expect_equal(nested("replace", "suffix"), c("1 2"))
expect_equal(nested("replace", "prefix"), c("2 1"))
expect_equal(nested("prefix", "suffix"), c("1 2"))
expect_equal(nested("prefix", "prefix"), c("2 1"))
expect_equal(nested("suffix", "suffix"), c("1 2"))
expect_equal(nested("suffix", "prefix"), c("2 1"))
})
test_that("local_envvar sets and unsets variables", {
# Make sure the "set_env_testvar" environment var is not set.
Sys.unsetenv("set_env_testvar")
expect_false("set_env_testvar" %in% names(Sys.getenv()))
# Use local_envvar (which calls set_envvar) to temporarily set it to 1
local({
local_envvar(c("set_env_testvar" = 1))
expect_identical("1", Sys.getenv("set_env_testvar"))
})
# set_env_testvar shouldn't stay in the list of environment vars
expect_false("set_env_testvar" %in% names(Sys.getenv()))
})
test_that("local_envar respects suffix and prefix", {
nested <- function(op1, op2) {
local({
local_envvar(c(A = 1), action = op1)
local({
local_envvar(c(A = 2), action = op2)
Sys.getenv("A")[[1]]
})
})
}
expect_equal(nested("replace", "suffix"), c("1 2"))
expect_equal(nested("replace", "prefix"), c("2 1"))
expect_equal(nested("prefix", "suffix"), c("1 2"))
expect_equal(nested("prefix", "prefix"), c("2 1"))
expect_equal(nested("suffix", "suffix"), c("1 2"))
expect_equal(nested("suffix", "prefix"), c("2 1"))
})
test_that("local_envvar works with null values", {
Sys.setenv("FOOBAR" = 1)
local({
local_envvar("FOOBAR" = NULL)
expect_false("FOOBAR" %in% names(Sys.getenv()))
})
})
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