R Under development (unstable) (2025-05-13 r88200 ucrt) -- "Unsuffered Consequences"
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> # This file is part of the standard setup for testthat.
> # It is recommended that you do not modify it.
> #
> # Where should you do additional test configuration?
> # Learn more about the roles of various files in:
> # * https://r-pkgs.org/testing-design.html#sec-tests-files-overview
> # * https://testthat.r-lib.org/articles/special-files.html
> 
> library(testthat)
> library(tvGarchKF)
> 
> test_check("tvGarchKF")
[ FAIL 2 | WARN 0 | SKIP 0 | PASS 3 ]

══ Failed tests ════════════════════════════════════════════════════════════════
── Error ('test-indipsa.R:5:3'): Valid Input ───────────────────────────────────
Error in `LSgarchKalmanFit(ipsa, c = c(0.05, 0.05), alpha = c(0.05, 0.05), 
    beta = c(0.05, 0.05), type = c("trigonometrico", "trigonometric", 
        "trigonometric"), trig = "cos", arg = "3*(1-log(u))")`: could not find function "LSgarchKalmanFit"
Backtrace:
    ▆
 1. └─testthat::expect_error(...) at test-indipsa.R:5:3
 2.   └─testthat:::expect_condition_matching(...)
 3.     └─testthat:::quasi_capture(...)
 4.       ├─testthat (local) .capture(...)
 5.       │ └─base::withCallingHandlers(...)
 6.       └─rlang::eval_bare(quo_get_expr(.quo), quo_get_env(.quo))
── Error ('test-indipsa.R:23:3'): Example with real data ───────────────────────
Error in `LSgarchKalmanFit(ipsa, c = c(0.05, 0.05), alpha = c(0.05, 0.05), 
    beta = c(0.05, 0.05), type = c("trigonometric", "trigonometric", 
        "trigonometric"), trig = "cos", arg = "3*(1-log(u))")`: could not find function "LSgarchKalmanFit"

[ FAIL 2 | WARN 0 | SKIP 0 | PASS 3 ]
Error: Test failures
Execution halted