# ==============================================================================
# as_forecast_nominal()
# ==============================================================================
test_that("as_forecast.forecast_nominal() works as expected", {
ex <- data.table::copy(example_nominal) %>%
na.omit()
expect_s3_class(
as_forecast_nominal(ex),
c("forecast_nominal", "forecast", "data.table", "data.frame"),
exact = TRUE
)
setnames(ex, old = "predicted_label", new = "label")
expect_no_condition(
as_forecast_nominal(ex, predicted_label = "label")
)
})
test_that("as_forecast.forecast_nominal() breaks when rows with zero probability are missing", {
ex_faulty <- as.data.table(example_nominal)
ex_faulty <- ex_faulty[predicted != 0]
expect_warning(
expect_error(
as_forecast_nominal(ex_faulty),
"Found incomplete forecasts"
),
"Some forecasts have different numbers of rows"
)
})
# ==============================================================================
# is_forecast_nominal()
# ==============================================================================
test_that("is_forecast_nominal() works as expected", {
expect_true(is_forecast_nominal(example_nominal))
expect_false(is_forecast_nominal(example_binary))
expect_false(is_forecast_nominal(example_point))
expect_false(is_forecast_nominal(example_quantile))
expect_false(is_forecast_nominal(example_sample_continuous))
expect_false(is_forecast_nominal(1:10))
})
# ==============================================================================
# get_metrics.forecast_nominal()
# ==============================================================================
test_that("get_metrics.forecast_nominal() works as expected", {
expect_true(
is.list(get_metrics(example_nominal))
)
})
# ==============================================================================
# Printing
# ==============================================================================
test_that("Printing works as expected", {
suppressMessages(
expect_message(
expect_message(
capture.output(print(example_nominal)),
"Forecast type: nominal"
),
"Forecast unit:")
)
})
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