Running 'testthat.R' [83s/90s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(backbone)
  > 
  > test_check("backbone")
  == Warnings ====================================================================
  -- Warning (test-backbone.extract.R:32:3): backbone.extract fwer = holm --------
  Use caution when applying Holm-Bonferroni or Bonferroni correction to backbones
               found via the Fixed Degree Sequence Method as the precision of the proportions
               depends on the number of trials.
  Backtrace:
   1. backbone::backbone.extract(...) test-backbone.extract.R:32:2
  -- Warning (test-backbone.extract.R:34:3): backbone.extract fwer = holm --------
  Use caution when applying Holm-Bonferroni or Bonferroni correction to backbones
               found via the Fixed Degree Sequence Method as the precision of the proportions
               depends on the number of trials.
  Backtrace:
   1. backbone::backbone.extract(...) test-backbone.extract.R:34:2
  -- Warning (test-backbone.extract.R:54:3): backbone.extract fwer = bonferroni --
  Use caution when applying Holm-Bonferroni or Bonferroni correction to backbones
               found via the Fixed Degree Sequence Method as the precision of the proportions
               depends on the number of trials.
  Backtrace:
   1. backbone::backbone.extract(...) test-backbone.extract.R:54:2
  -- Warning (test-backbone.extract.R:56:3): backbone.extract fwer = bonferroni --
  Use caution when applying Holm-Bonferroni or Bonferroni correction to backbones
               found via the Fixed Degree Sequence Method as the precision of the proportions
               depends on the number of trials.
  Backtrace:
   1. backbone::backbone.extract(...) test-backbone.extract.R:56:2
  
  == Failed tests ================================================================
  -- Error (test-backbone.extract.R:71:3): backbone.extract class outputs --------
  Error: attempt to set index 0/0 in SET_VECTOR_ELT
  Backtrace:
      x
   1. \-backbone::backbone.extract(...) test-backbone.extract.R:71:2
   2.   \-backbone:::class.convert(backbone, class[1], extract = TRUE)
   3.     \-network::network(...)
   4.       +-network::as.network(...)
   5.       \-network::as.network.matrix(...)
   6.         \-network::network.initialize(...)
   7.           \-network::set.vertex.attribute(g, "na", rep(FALSE, n), 1:n)
  -- Error (test-class.convert.R:32:3): class.convert classes match --------------
  Error: attempt to set index 0/0 in SET_VECTOR_ELT
  Backtrace:
      x
   1. \-network::network(...) test-class.convert.R:32:2
   2.   +-network::as.network(...)
   3.   \-network::as.network.matrix(...)
   4.     \-network::network.initialize(...)
   5.       \-network::set.vertex.attribute(g, "na", rep(FALSE, n), 1:n)
  
  [ FAIL 2 | WARN 4 | SKIP 0 | PASS 9 ]
  Error: Test failures
  Execution halted