Running ‘testthat.R’ [2s/2s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(dtComb)
  > # require(APtools)
  > # # library(usethis)
  > 
  > test_check("dtComb")
  [ FAIL 5 | WARN 0 | SKIP 0 | PASS 23 ]
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-linComb.R:31:3'): (code run outside of `test_that()`) ──────────
  <packageNotFoundError/error/condition>
  Error in `loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])`: there is no package called 'systemfonts'
  Backtrace:
       ▆
    1. ├─dtComb::linComb(...) at test-linComb.R:31:3
    2. │ └─dtComb:::rocsum(...)
    3. └─base::loadNamespace(x)
    4.   ├─base::namespaceImportFrom(...)
    5.   │ └─base::asNamespace(ns)
    6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
    7.     ├─base::namespaceImportFrom(...)
    8.     │ └─base::asNamespace(ns)
    9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   10.       ├─base::namespaceImportFrom(...)
   11.       │ └─base::asNamespace(ns)
   12.       └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   13.         └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   14.           └─base (local) withOneRestart(expr, restarts[[1L]])
   15.             └─base (local) doWithOneRestart(return(expr), restart)
  ── Error ('test-mathComb.R:31:3'): (code run outside of `test_that()`) ─────────
  <packageNotFoundError/error/condition>
  Error in `loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])`: there is no package called 'systemfonts'
  Backtrace:
       ▆
    1. ├─dtComb::mathComb(...) at test-mathComb.R:31:3
    2. │ └─dtComb:::rocsum(...)
    3. └─base::loadNamespace(x)
    4.   ├─base::namespaceImportFrom(...)
    5.   │ └─base::asNamespace(ns)
    6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
    7.     ├─base::namespaceImportFrom(...)
    8.     │ └─base::asNamespace(ns)
    9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   10.       ├─base::namespaceImportFrom(...)
   11.       │ └─base::asNamespace(ns)
   12.       └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   13.         └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   14.           └─base (local) withOneRestart(expr, restarts[[1L]])
   15.             └─base (local) doWithOneRestart(return(expr), restart)
  ── Error ('test-nonlinComb.R:29:3'): (code run outside of `test_that()`) ───────
  <packageNotFoundError/error/condition>
  Error in `loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])`: there is no package called 'systemfonts'
  Backtrace:
       ▆
    1. ├─dtComb::nonlinComb(...) at test-nonlinComb.R:29:3
    2. │ └─dtComb:::rocsum(...)
    3. └─base::loadNamespace(x)
    4.   ├─base::namespaceImportFrom(...)
    5.   │ └─base::asNamespace(ns)
    6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
    7.     ├─base::namespaceImportFrom(...)
    8.     │ └─base::asNamespace(ns)
    9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   10.       ├─base::namespaceImportFrom(...)
   11.       │ └─base::asNamespace(ns)
   12.       └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   13.         └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   14.           └─base (local) withOneRestart(expr, restarts[[1L]])
   15.             └─base (local) doWithOneRestart(return(expr), restart)
  ── Error ('test-predComb.R:37:3'): (code run outside of `test_that()`) ─────────
  <packageNotFoundError/error/condition>
  Error in `loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])`: there is no package called 'systemfonts'
  Backtrace:
       ▆
    1. ├─dtComb::linComb(...) at test-predComb.R:37:3
    2. │ └─dtComb:::rocsum(...)
    3. └─base::loadNamespace(x)
    4.   ├─base::namespaceImportFrom(...)
    5.   │ └─base::asNamespace(ns)
    6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
    7.     ├─base::namespaceImportFrom(...)
    8.     │ └─base::asNamespace(ns)
    9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   10.       ├─base::namespaceImportFrom(...)
   11.       │ └─base::asNamespace(ns)
   12.       └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   13.         └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   14.           └─base (local) withOneRestart(expr, restarts[[1L]])
   15.             └─base (local) doWithOneRestart(return(expr), restart)
  ── Error ('test-standardize.R:43:3'): (code run outside of `test_that()`) ──────
  <packageNotFoundError/error/condition>
  Error in `loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])`: there is no package called 'systemfonts'
  Backtrace:
       ▆
    1. ├─dtComb::linComb(...) at test-standardize.R:43:3
    2. │ └─dtComb:::rocsum(...)
    3. └─base::loadNamespace(x)
    4.   ├─base::namespaceImportFrom(...)
    5.   │ └─base::asNamespace(ns)
    6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
    7.     ├─base::namespaceImportFrom(...)
    8.     │ └─base::asNamespace(ns)
    9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   10.       ├─base::namespaceImportFrom(...)
   11.       │ └─base::asNamespace(ns)
   12.       └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
   13.         └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   14.           └─base (local) withOneRestart(expr, restarts[[1L]])
   15.             └─base (local) doWithOneRestart(return(expr), restart)
  
  [ FAIL 5 | WARN 0 | SKIP 0 | PASS 23 ]
  Error: Test failures
  Execution halted