Running 'spelling.R'
  Running 'testthat.R'
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(RtD3)
  > 
  > test_check("RtD3")
  ══ Skipped tests ═══════════════════════════════════════════════════════════════
  • On CRAN (3)
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error (test-check_input_data.R:6:3): check_geoData_columns works as expected ──
  Error: there is no package called 'sf'
  Backtrace:
      █
   1. └─base::loadNamespace(x) test-check_input_data.R:6:2
   2.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   3.     └─base:::withOneRestart(expr, restarts[[1L]])
   4.       └─base:::doWithOneRestart(return(expr), restart)
  ── Error (test-mapWidget.R:4:3): summaryWidget errors as expected ──────────────
  Error: there is no package called 'sf'
  Backtrace:
      █
   1. └─base::loadNamespace(x) test-mapWidget.R:4:2
   2.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   3.     └─base:::withOneRestart(expr, restarts[[1L]])
   4.       └─base:::doWithOneRestart(return(expr), restart)
  ── Error (test-summaryWidget.R:13:3): geojsonNull works as expected ────────────
  Error: there is no package called 'sf'
  Backtrace:
      █
   1. └─base::loadNamespace(x) test-summaryWidget.R:13:2
   2.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   3.     └─base:::withOneRestart(expr, restarts[[1L]])
   4.       └─base:::doWithOneRestart(return(expr), restart)
  ── Error (test-summaryWidget.R:37:3): summaryWidget errors as expected ─────────
  Error: there is no package called 'sf'
  Backtrace:
      █
   1. └─base::loadNamespace(x) test-summaryWidget.R:37:2
   2.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   3.     └─base:::withOneRestart(expr, restarts[[1L]])
   4.       └─base:::doWithOneRestart(return(expr), restart)
  
  [ FAIL 4 | WARN 0 | SKIP 3 | PASS 25 ]
  Error: Test failures
  Execution halted