R Under development (unstable) (2026-02-27 r89498 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(algebraic.mle)

Attaching package: 'algebraic.mle'

The following object is masked from 'package:testthat':

    expectation

> 
> test_check("algebraic.mle")
Saving _problems/test-mle-72.R
[ FAIL 1 | WARN 1 | SKIP 0 | PASS 227 ]

══ Failed tests ════════════════════════════════════════════════════════════════
── Error ('test-mle.R:72:3'): AIC and BIC work via logLik ──────────────────────
Error in `object@min`: no applicable method for `@` applied to an object of class "mle"
Backtrace:
    ▆
 1. ├─testthat::expect_equal(AIC(fit), -2 * (-50) + 2 * 2) at test-mle.R:72:3
 2. │ └─testthat::quasi_label(enquo(object), label)
 3. │   └─rlang::eval_bare(expr, quo_get_env(quo))
 4. ├─stats::AIC(fit)
 5. └─stats:::AIC.default(fit)
 6.   ├─stats (local) ll(object)
 7.   └─stats4 (local) ll(object)

[ FAIL 1 | WARN 1 | SKIP 0 | PASS 227 ]
Error:
! Test failures.
Execution halted