tests/testthat/test-basic.R

In ThoDuyNguyen/fars: Package analyzes FARS accident data

context("Test functions of package")

library(dplyr)
library(maps)

setwd(system.file("extdata", package = "fars"))

test_that("function fars_read worked correctly", {
     expect_is(fars_read("accident_2015.csv.bz2"), "tbl_df")
     expect_error(fars_read("accident_2016.csv.bz2"))
})

test_that("function fars_summarize_years worked correctly", {
     expect_is(fars_summarize_years(2013:2015), "tbl_df")
     expect_is(fars_summarize_years(list(2013, 2014)), "tbl_df")
     expect_equal(names(fars_summarize_years(2013:2015)), c("MONTH", 2013:2015))
     expect_error(fars_summarize_years(2016))
})

test_that("function fars_map_state worked correctly", {
     expect_silent(fars_map_state(1, 2015))
     expect_error(fars_map_state(100, 2015))
     expect_error(fars_map_state(1, 2016))
})