Nothing
# Define the test cases
test_that("subset.swmpr subsets the swmpr object correctly", {
subset_obj <- subset(wq, subset = '2013-01-01 0:00', operator = '>=')
# Check if the subset object has the correct number of rows
expect_equal(nrow(subset_obj), 35040)
# Check if the subset object has the correct column names
expect_equal(colnames(subset_obj), c("datetimestamp", "temp", "spcond", "sal", "do_pct", "do_mgl",
"depth", "cdepth", "level", "clevel", "ph", "turb", "chlfluor"
))
# Check if the subset object has the correct timezone attribute
expect_equal(attr(subset_obj, "timezone"), "America/Jamaica")
})
test_that("Check error in subset.swmpr if select is incorrect", {
expect_error(subset.swmpr(apacpnut, select = 'test'), 'select argument is invalid: test')
})
test_that("Check error if no record match subset criteria", {
expect_error(subset.swmpr(apacpnut, subset = '2015-01-01 0:00', operator = '>='), 'No records matching subset criteria')
})
test_that("Check error if no binary operator for one date", {
expect_error(subset.swmpr(apacpnut, subset = '2013-01-01 0:00'), 'Binary operator must be included if only one subset value is provided')
})
test_that("Check error if subset input format inccorrect", {
expect_error(subset.swmpr(apacpnut, subset = '2013-01-01'), 'subset must be of format %Y-%m-%d %H:%M')
})
test_that("Check rem_rows returns correct output", {
subset_obj <- subset.swmpr(apacpnut, select = 'no2f', rem_rows = T)
expect_equal(nrow(subset_obj), 107)
})
test_that("Check rem_rows returns error if no data", {
swmpr_in <- nut
swmpr_in$no2f <- NA
expect_error(subset.swmpr(swmpr_in, select = 'no2f', rem_rows = T), 'All data removed, select different parameters')
})
test_that("Subset for datetimestamp as date", {
swmpr_in <- apacpnut
swmpr_in$datetimestamp <- as.Date(swmpr_in$datetimestamp)
attr(swmpr_in, 'stamp_class') <- 'Date'
subset_obj <- subset(swmpr_in, subset = '2013-01-01 0:00', operator = '>=')
expect_equal(nrow(subset_obj), 16)
})
test_that("Check error if all data removed with rem_cols", {
expect_error(subset(apacpwq, rem_cols = T, select = 'level'), 'All data removed, select different parameters')
})
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