data("sample_explan_data")
data("sample_events_data")
sample_occ_abs_data_fortest <- dplyr::sample_n(sample_explan_data, 3)

test_that("stops if no sampling effort data provided", {
  expect_error(
    spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  )
})

test_that("identifies missing year col in survey effort df", {
  expect_error(spatiotemp_weights(
    occ.data = sample_occ_abs_data_fortest,
    samp.events = subset(
      sample_events_data,
      select = -c(year),
      spatial.dist = 10000,
      temporal.dist = 20
    )
  ))
})
test_that("identifies missing month col in survey effort df", {
  expect_error(spatiotemp_weights(
    occ.data = sample_occ_abs_data_fortest,
    samp.events = subset(
      sample_events_data,
      select = -c(month),
      spatial.dist = 10000,
      temporal.dist = 20
    )
  ))
})
test_that("identifies missing day col in survey effort df", {
  expect_error(spatiotemp_weights(
    occ.data = sample_occ_abs_data_fortest,
    samp.events = subset(
      sample_events_data,
      select = -c(day),
      spatial.dist = 10000,
      temporal.dist = 20
    )
  ))
})
test_that("identifies missing x col in survey effort df", {
  expect_error(spatiotemp_weights(
    occ.data = sample_occ_abs_data_fortest,
    samp.events = subset(
      sample_events_data,
      select = -c(x),
      spatial.dist = 10000,
      temporal.dist = 20
    )
  ))
})
test_that("identifies missing y col in survey effort df", {
  expect_error(spatiotemp_weights(
    occ.data = sample_occ_abs_data_fortest,
    samp.events = subset(
      sample_events_data,
      select = -c(y),
      spatial.dist = 10000,
      temporal.dist = 20
    )
  ))
})

test_that("identifies wrong year class in survey effort df", {
  wrong.class <- sample_events_data
  wrong.class$year <- as.character(wrong.class$year)
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = wrong.class,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  )
})

test_that("identifies wrong month class in survey effort df", {
  wrong.class <- sample_events_data
  wrong.class$month <- as.character(wrong.class$month)
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = wrong.class,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  )
})

test_that("identifies wrong day class in survey effort df", {
  wrong.class <- sample_events_data
  wrong.class$day <- as.character(wrong.class$day)
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = wrong.class,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  )
})

test_that("identifies wrong x class in survey effort df", {
  wrong.class <- sample_events_data
  wrong.class$x <- as.character(wrong.class$x)
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = wrong.class,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  )
})

test_that("identifies wrong y class in survey effort df", {
  wrong.class <- sample_events_data
  wrong.class$x <- as.character(wrong.class$x)
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = wrong.class,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  )
})

test_that("stops if spatial.dist not class numeric", {
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = "300metres",
      temporal.dist = 20
    )
  )
})

test_that("stops if temporal.dist not class numeric", {
  expect_error(
    spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = 10000,
      temporal.dist = "twenty"
    )
  )
})

test_that("stops if spatial.dist not length(1) numeric", {
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = c(200, 300, 400),
      temporal.dist = 20
    )
  )
})

test_that("stops if temporal.dist not length(1) numeric", {
  expect_error(spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = 10000,
      temporal.dist = c(20, 30, 40)
    )
  )
})

test_that("Output is class data.frame", {
  results <- spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  expect_equal(class(results), "data.frame")
})

test_that("Output is same nrows as input data.frame", {
  results <- spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  expect_equal(nrow(results), nrow(sample_occ_abs_data_fortest))
})

test_that("Output is adds two rows with sampling effort", {
  results <- spatiotemp_weights(
      occ.data = sample_occ_abs_data_fortest,
      samp.events = sample_events_data,
      spatial.dist = 10000,
      temporal.dist = 20
    )
  expect_equal(ncol(results), ncol(sample_occ_abs_data_fortest) + 2)
})