Running 'spelling.R' [0s/1s]
  Running 'testthat.R' [9s/11s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(ggdag)
  Loading required package: ggplot2
  
  Attaching package: 'ggdag'
  
  The following object is masked from 'package:stats':
  
      filter
  
  > 
  > test_check("ggdag")
  -- 1. Error: adjustment sets drawn correctly (@test-adjustment_sets.R#5)  ------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 2. Error: dags cannonicalize correctly (@test-canonical.R#7)  ---------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 3. Error: colliders correctly identified (@test-colliders.R#7)  -------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 4. Error: d relationships correctly identified (@test-drelationship.R#10)  --
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 5. Error: dags ............ (@test-equivalence.R#8)  ------------------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 6. Error: dags identify exogenous variables correctly (@test-exogenous.R#8)  
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 7. Error: repelled labels work (@test-geom_dag.R#31)  -----------------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 8. Error: different edge types work (@test-geom_dag.R#45)  ------------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 9. Error: basic ggdag quick functions works (@test-ggdag.R#7)  --------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 10. Error: dags identify IVs correctly (@test-instrumental.R#6)  ------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 11. Error: DAG paths are identified and drawn correctly (@test-paths.R#43)  -
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 12. Error: quick plots render correctly (@test-quick_plots.R#5)  ------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 13. Error: dags cannonicalize correctly (@test-relations.R#5)  --------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 14. Error: dags have correct status (@test-status.R#15)  --------------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  -- 15. Error: themes look good (@test-themes.R#9)  -----------------------------
  there is no package called 'vdiffr'
  Backtrace:
   1. vdiffr::expect_doppelganger
   2. base::getExportedValue(pkg, name)
   3. base::asNamespace(ns)
   4. base::getNamespace(ns)
   5. base::loadNamespace(name)
   6. base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
   7. base:::withOneRestart(expr, restarts[[1L]])
   8. base:::doWithOneRestart(return(expr), restart)
  
  == testthat results  ===========================================================
  [ OK: 57 | SKIPPED: 0 | WARNINGS: 0 | FAILED: 15 ]
  1. Error: adjustment sets drawn correctly (@test-adjustment_sets.R#5) 
  2. Error: dags cannonicalize correctly (@test-canonical.R#7) 
  3. Error: colliders correctly identified (@test-colliders.R#7) 
  4. Error: d relationships correctly identified (@test-drelationship.R#10) 
  5. Error: dags ............ (@test-equivalence.R#8) 
  6. Error: dags identify exogenous variables correctly (@test-exogenous.R#8) 
  7. Error: repelled labels work (@test-geom_dag.R#31) 
  8. Error: different edge types work (@test-geom_dag.R#45) 
  9. Error: basic ggdag quick functions works (@test-ggdag.R#7) 
  1. ...
  
  Error: testthat unit tests failed
  Execution halted