Running 'testthat.R' [19s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(PlackettLuce)
  > 
  > test_check("PlackettLuce")
  -- 1. Error: (unknown) (@test-S3-methods.R#14)  --------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R) at testthat/test-S3-methods.R:14
  
  -- 2. Error: logLik matches agRank, fixed adherence [fake triple comparisons] (@
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R[seq(p), ], npseudo = 0, maxit = 0, adherence = adherence[seq(p)], 
         start = alpha, normal = list(mu = mu, Sigma = sigma)) at testthat/test-adherence.R:33
  
  -- 3. Error: estimated adherence works for grouped_rankings [fake triples] (@tes
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0, gamma = list(shape = 10, rate = 10)) at testthat/test-adherence.R:60
  
  -- 4. Error: estimated adherence works w/ npseudo != 0 [fake triples] (@test-adh
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, gamma = list(shape = 100, rate = 100)) at testthat/test-adherence.R:86
  
  -- 5. Error: default prior for adherence works [fake triples] (@test-adherence.R
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, gamma = list(shape = 10, rate = 10)) at testthat/test-adherence.R:93
  
  -- 6. Error: check on prior for adherence works [fake triples] (@test-adherence.
  could not find function "isFALSE"
  1: expect_warning(mod1 <- PlackettLuce(rankings = R, gamma = list(shape = 100, rate = 10))) at testthat/test-adherence.R:102
  2: quasi_capture(enquo(object), capture_warnings, label = label)
  3: capture(act$val <- eval_bare(get_expr(quo), get_env(quo)))
  4: withCallingHandlers(code, warning = function(condition) {
         out$push(condition)
         invokeRestart("muffleWarning")
     })
  5: eval_bare(get_expr(quo), get_env(quo))
  6: PlackettLuce(rankings = R, gamma = list(shape = 100, rate = 10))
  
  -- 7. Error: fixed adherence works for grouped_rankings [beans] (@test-adherence
  could not find function "isFALSE"
  1: PlackettLuce(G) at testthat/test-adherence.R:150
  
  -- 8. Error: estimated adherence works for grouped_rankings [partial + ties] (@t
  could not find function "isFALSE"
  1: suppressWarnings(PlackettLuce(R, npseudo = 0, method = "BFGS", weights = w, gamma = list(shape = 10, 
         rate = 10))) at testthat/test-adherence.R:178
  2: withCallingHandlers(expr, warning = function(w) invokeRestart("muffleWarning"))
  3: PlackettLuce(R, npseudo = 0, method = "BFGS", weights = w, gamma = list(shape = 10, 
         rate = 10))
  
  -- 9. Error: logLik matches agRank [fake triple comparisons] (@test-agrank.R#29)
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0, method = "BFGS") at testthat/test-agrank.R:29
  
  -- 10. Error: logLik matches agRank with normal prior [fake triple comparisons] 
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0, normal = prior, start = exp(prior$mu)) at testthat/test-agrank.R:53
  
  -- 11. Error: (unknown) (@test-algorithms.R#14)  -------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R) at testthat/test-algorithms.R:14
  
  -- 12. Error: estfun matches agRank, fixed adherence [fake triple comparisons] (
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0, adherence = adherence, start = c(alpha, delta)) at testthat/test-estfun.R:19
  
  -- 13. Error: (unknown) (@test-log-likelihood.R#42)  ---------------------------
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0) at testthat/test-log-likelihood.R:42
  
  -- 14. Error: (unknown) (@test-pseudo.R#31)  -----------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(rankings = X, npseudo = 1) at testthat/test-pseudo.R:31
  
  -- 15. Error: (unknown) (@test-psycho.R#14)  -----------------------------------
  could not find function "isFALSE"
  1: plfit(G, npseudo = 0, ref = "Anja", estfun = TRUE, object = TRUE) at testthat/test-psycho.R:14
  2: PlackettLuce(y, start = start, weights = weights, ...)
  
  -- 16. Error: (unknown) (@test-reference.R#12)  --------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R) at testthat/test-reference.R:12
  
  -- 17. Error: (unknown) (@test-simulate.R#17)  ---------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(R) at testthat/test-simulate.R:17
  
  -- 18. Error: (unknown) (@test-start.R#16)  ------------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(R, npseudo = 0) at testthat/test-start.R:16
  
  -- 19. Error: vcov.PlackettLuce matches vcov.gnm [partial + ties] (@test-vcov.R#
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0) at testthat/test-vcov.R:19
  
  -- 20. Error: vcov.PlackettLuce matches vcov_hessian [normal prior] (@test-vcov.
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0, method = "BFGS", normal = list(mu = mu, Sigma = sigma)) at testthat/test-vcov.R:59
  
  -- 21. Error: vcov.PlackettLuce approximated by vcov_hessian [gamma prior] (@tes
  could not find function "isFALSE"
  1: PlackettLuce(rankings = R, npseudo = 0, method = "BFGS", gamma = list(shape = 100, 
         rate = 100)) at testthat/test-vcov.R:88
  
  -- 22. Error: vcov.PlackettLuce works, grouped rankings [normal + gamma prior] (
  could not find function "isFALSE"
  1: PlackettLuce(rankings = G, npseudo = 0, method = "BFGS", normal = prior, gamma = list(shape = 100, 
         rate = 100)) at testthat/test-vcov.R:122
  
  -- 23. Error: (unknown) (@test-weights.R#37)  ----------------------------------
  could not find function "isFALSE"
  1: PlackettLuce(R, npseudo = 0) at testthat/test-weights.R:37
  
  == testthat results  ===========================================================
  OK: 4 SKIPPED: 0 FAILED: 23
  1. Error: (unknown) (@test-S3-methods.R#14) 
  2. Error: logLik matches agRank, fixed adherence [fake triple comparisons] (@test-adherence.R#33) 
  3. Error: estimated adherence works for grouped_rankings [fake triples] (@test-adherence.R#60) 
  4. Error: estimated adherence works w/ npseudo != 0 [fake triples] (@test-adherence.R#86) 
  5. Error: default prior for adherence works [fake triples] (@test-adherence.R#93) 
  6. Error: check on prior for adherence works [fake triples] (@test-adherence.R#102) 
  7. Error: fixed adherence works for grouped_rankings [beans] (@test-adherence.R#150) 
  8. Error: estimated adherence works for grouped_rankings [partial + ties] (@test-adherence.R#178) 
  9. Error: logLik matches agRank [fake triple comparisons] (@test-agrank.R#29) 
  1. ...
  
  Error: testthat unit tests failed
  Execution halted