context("test helper functions")
## Test expand_list() ----
test_that("expand_list() accepts a list of arguments with no multiple values", {
single_params <- list(
commodity_desc = "CORN",
year__GE = "2012",
state_alpha = "VA"
)
expect_equal(single_params, expand_list(single_params))
})
test_that("expand_list() accepts a list of arguments with multiple values", {
multi_params <- list(
commodity_desc = "CORN",
year__GE = "2012",
state_alpha = c("VA", "WA")
)
expect_equal(multi_params, expand_list(multi_params))
})
test_that("expand_list() accepts separate arguments", {
expected_list <- list(
commodity_desc = "CORN",
year__GE = "2012",
state_alpha = c("VA", "WA"))
l1 <- expand_list(commodity_desc = "CORN",
year__GE = "2012",
state_alpha = c("VA", "WA"))
expect_equal(expected_list, l1)
})
## Test char_to_num() ----
test_that("char_to_num() correctly converts an array of character values to numbers", {
c_str <- c("43,345", "1", "(D)", "(Z)", "", "NA")
c_expected <- c(43345, 1, NA, NA, NA, NA)
expect_equal(char_to_num(c_str), c_expected)
})
test_that("char_to_num() warnings ensue when not parsed correctly", {
c_str <- c("43,345", "1", "(D)", "(Z)", "", "NA", "(A)")
expect_warning(char_to_num(c_str), "NAs introduced by coercion")
})
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