context("duncan")

###################
# duncan testthat #
###################

test_that("duncan throws error with invalid arguments", {
  
  # Unavailable geography
  expect_error(duncan(geo_small = "zcta", state = "DC", year = 2020,
                      subgroup = "NHoLB", subgroup_ref = "NHoLW", quiet = TRUE))
  expect_error(duncan(geo_large = "block group", state = "DC", year = 2020,
                      subgroup = "NHoLB", subgroup_ref = "NHoLW", quiet = TRUE))
  
  # Unavailable year
  expect_error(duncan(state = "DC", year = 2005,
                      subgroup = "NHoLB", subgroup_ref = "NHoLW", quiet = TRUE))
  
  # Unavailable subgroup
  expect_error(duncan(state = "DC", year = 2020,
                      subgroup = "terran", subgroup_ref = "NHoLW", quiet = TRUE))
  expect_error(duncan(state = "DC", year = 2020,
                      subgroup = "NHoLB", subgroup_ref = "terran", quiet = TRUE))
  
  skip_if(Sys.getenv("CENSUS_API_KEY") == "")
  
  # Incorrect state
  expect_error(duncan(state = "AB", year = 2020,
                      subgroup = "NHoLB", subgroup_ref = "NHoLW", quiet = TRUE))
  
}
)   

test_that("duncan works", {  
  
  skip_if(Sys.getenv("CENSUS_API_KEY") == "")
  
  expect_silent(duncan(state = "DC", year = 2020,
                       subgroup = c("NHoLB", "HoLB"), subgroup_ref = c("NHoLW", "HoLW"))) 
  
  expect_silent(duncan(state = "DC", year = 2020,
                       subgroup = "NHoLB", subgroup_ref = "NHoLW", quiet = TRUE))
  
  expect_silent(duncan(state = "DC", year = 2020,
                       subgroup = c("NHoLB", "HoLB"), subgroup_ref = c("NHoLW", "HoLW"), quiet = TRUE)) 
  
}
)