tests/testthat/test_is_valid_date_str.R

In rmsharp/rmsutilityr: Utility Functions Used for Reproducible Research

context("test_is_valid_date_str")
library(testthat)

dates <- c("13-21-1995", "20-13-98", "5-28-1014", "1-21-15", "2-13-2098", 
           "25-28-2014", "11111111", NA, "99999999", "19821021", "12345678",
           "7-8-2006", "2-7-2015", "3-1-2003", "11-21-2006", "6-7-2003",
           "9-5-2009", "10-1-2006", "12-14-2006", "9-3-2006", "7-23-2009")
test_that("is_valid_date_str returns correct logical values", {
  expect_equal(is_valid_date_str(dates, format = "%m-%d-%Y"), 
               c(FALSE, FALSE, TRUE, TRUE, TRUE, FALSE, TRUE, FALSE, FALSE, 
                 TRUE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
                 TRUE, TRUE))
  expect_equal(is_valid_date_str(dates, format = "%m-%d-%Y", optional = TRUE), 
               c(NA, NA, TRUE, TRUE, TRUE, NA, TRUE, NA, NA, TRUE, NA, TRUE,
                 TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE))
  expect_equal(is_valid_date_str(dates, format = "%m-%d-%Y", optional = FALSE), 
               c(FALSE, FALSE, TRUE, TRUE, TRUE, FALSE, TRUE, FALSE, FALSE, 
                 TRUE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
                 TRUE, TRUE))
  expect_equal(is_valid_date_str(c(19821021, 20140806), format = "%m-%d-%Y", optional = FALSE), 
               c(FALSE, FALSE))
})