Running 'testthat.R' [46s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(rscala)
  > 
  > test_check("rscala")
  Starting instance. ********************************
  trying URL 'https://downloads.lightbend.com/scala/2.13.1/scala-2.13.1.tgz'
  Content type 'application/octet-stream' length 19685743 bytes (18.8 MB)
  ==================================================
  downloaded 18.8 MB
  
  trying URL 'https://downloads.lightbend.com/scala/2.13.1/scala-2.13.1.tgz'
  Content type 'application/octet-stream' length 19685743 bytes (18.8 MB)
  ==================================================
  downloaded 18.8 MB
  
  -- 1. Error: primitives work in callbacks (@tests-callbacks.R#8)  --------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(x = x) * "R.evalI0(\"%-\",x)", as.integer(x))
   4. rscala:::`*.rscalaBridge`(s(x = x), "R.evalI0(\"%-\",x)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 2. Error: length 1 vectors work in callbacks (@tests-callbacks.R#26)  -------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`*.rscalaBridge`(s(x = I(x)), "R.evalI1(\"I(%-)\",x)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 3. Error: length 2 vectors work in callbacks (@tests-callbacks.R#36)  -------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(x = x) * "R.evalI1(\"%-\",x)", as.integer(x))
   4. rscala:::`*.rscalaBridge`(s(x = x), "R.evalI1(\"%-\",x)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 4. Error: matrices work in callbacks (@tests-callbacks.R#51)  ---------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(x = x) * "R.evalI2(\"%-\",x)", xi)
   4. rscala:::`*.rscalaBridge`(s(x = x), "R.evalI2(\"%-\",x)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 5. Failure: misc. stuff works as expected (@tests-callbacks.R#59)  ----------
  `s * "R.eval(\"%-\",List(1,2))"` threw an error with unexpected message.
  Expected match: "^Invocation error"
  Actual message: "Error in scalaConfig(FALSE): \n\n<<<<<<<<<<\n<<<<<<<<<<\n<<<<<<<<<<\n\nScala is not found!  Please run 'rscala::scalaConfig(download=\"scala\")'\n\n>>>>>>>>>>\n>>>>>>>>>>\n>>>>>>>>>>\n\n"
  Backtrace:
   1. testthat::expect_error(s * "R.eval(\"%-\",List(1,2))", "^Invocation error")
   6. rscala:::`*.rscalaBridge`(s, "R.eval(\"%-\",List(1,2))")
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 6. Error: we evaluate in the calling R environment. (@tests-callbacks.R#69)  
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. rscala:::`*.rscalaBridge`(s(x = x), "R.eval(\"a <- %-\",x)")
   2. rscala:::scalaInvoke(...)
   3. rscala:::scalaConnect(details)
  
  -- 7. Error: references work (@tests-dollar.R#8)  ------------------------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. s$.new_scala.util.Random()
   2. rscala:::scalaInvoke(details, snippet, list(...), parent.frame(1))
   3. rscala:::scalaConnect(details)
  
  -- 8. Error: (unknown) (@tests-lexical-scoping.R#15)  --------------------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. rscala:::`^.rscalaBridge`(...)
   2. rscala:::scalaConnect(details)
  
  -- 9. Error: regular matrices transfer to Scala as expected by rows (@tests-matr
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`*.rscalaBridge`(s(m = md2by3), "m(0)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 10. Error: regular matrices transfer to Scala as expected in full (@tests-mat
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(m = md2by3) * "m", md2by3)
   4. rscala:::`*.rscalaBridge`(s(m = md2by3), "m")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 11. Error: column vector transfer to Scala as expected by rows (@tests-matric
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`*.rscalaBridge`(s(m = md2by1), "m(0)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 12. Error: column vector transfer to Scala as expected in full (@tests-matric
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(m = md2by1) * "m", md2by1)
   4. rscala:::`*.rscalaBridge`(s(m = md2by1), "m")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 13. Error: row vector transfer to Scala as expected by rows (@tests-matrices.
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`*.rscalaBridge`(s(m = md1by2), "m(0)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 14. Error: row vector transfer to Scala as expected in full (@tests-matrices.
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(m = md1by2) * "m", md1by2)
   4. rscala:::`*.rscalaBridge`(s(m = md1by2), "m")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 15. Error: matrix with no columns and multipe rows transfer to Scala as expec
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(m = md2by0) * "m", md2by0)
   4. rscala:::`*.rscalaBridge`(s(m = md2by0), "m")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 16. Error: matrix with no columns and one row transfer to Scala as expected i
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(m = md1by0) * "m", md1by0)
   4. rscala:::`*.rscalaBridge`(s(m = md1by0), "m")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 17. Failure: matrix with no rows transfer to Scala as expected in full (@test
  `s(m = md0by2) * "m"` threw an error with unexpected message.
  Expected match: "^Number of rows must be at least 1"
  Actual message: "Error in scalaConfig(FALSE): \n\n<<<<<<<<<<\n<<<<<<<<<<\n<<<<<<<<<<\n\nScala is not found!  Please run 'rscala::scalaConfig(download=\"scala\")'\n\n>>>>>>>>>>\n>>>>>>>>>>\n>>>>>>>>>>\n\n"
  Backtrace:
   1. testthat::expect_error(s(m = md0by2) * "m", "^Number of rows must be at least 1")
   6. rscala:::`*.rscalaBridge`(s(m = md0by2), "m")
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 18. Failure: matrix with no rows transfer to Scala as expected in full (@test
  `s(m = mi0by2) * "m"` threw an error with unexpected message.
  Expected match: "^Number of rows must be at least 1"
  Actual message: "Error in scalaConfig(FALSE): \n\n<<<<<<<<<<\n<<<<<<<<<<\n<<<<<<<<<<\n\nScala is not found!  Please run 'rscala::scalaConfig(download=\"scala\")'\n\n>>>>>>>>>>\n>>>>>>>>>>\n>>>>>>>>>>\n\n"
  Backtrace:
   1. testthat::expect_error(s(m = mi0by2) * "m", "^Number of rows must be at least 1")
   6. rscala:::`*.rscalaBridge`(s(m = mi0by2), "m")
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 19. Failure: matrix with no rows transfer to Scala as expected in full (@test
  `s(m = ml0by2) * "m"` threw an error with unexpected message.
  Expected match: "^Number of rows must be at least 1"
  Actual message: "Error in scalaConfig(FALSE): \n\n<<<<<<<<<<\n<<<<<<<<<<\n<<<<<<<<<<\n\nScala is not found!  Please run 'rscala::scalaConfig(download=\"scala\")'\n\n>>>>>>>>>>\n>>>>>>>>>>\n>>>>>>>>>>\n\n"
  Backtrace:
   1. testthat::expect_error(s(m = ml0by2) * "m", "^Number of rows must be at least 1")
   6. rscala:::`*.rscalaBridge`(s(m = ml0by2), "m")
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 20. Failure: matrix with no rows transfer to Scala as expected in full (@test
  `s(m = mr0by2) * "m"` threw an error with unexpected message.
  Expected match: "^Number of rows must be at least 1"
  Actual message: "Error in scalaConfig(FALSE): \n\n<<<<<<<<<<\n<<<<<<<<<<\n<<<<<<<<<<\n\nScala is not found!  Please run 'rscala::scalaConfig(download=\"scala\")'\n\n>>>>>>>>>>\n>>>>>>>>>>\n>>>>>>>>>>\n\n"
  Backtrace:
   1. testthat::expect_error(s(m = mr0by2) * "m", "^Number of rows must be at least 1")
   6. rscala:::`*.rscalaBridge`(s(m = mr0by2), "m")
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 21. Failure: matrix with no rows transfer to Scala as expected in full (@test
  `s(m = mc0by2) * "m"` threw an error with unexpected message.
  Expected match: "^Number of rows must be at least 1"
  Actual message: "Error in scalaConfig(FALSE): \n\n<<<<<<<<<<\n<<<<<<<<<<\n<<<<<<<<<<\n\nScala is not found!  Please run 'rscala::scalaConfig(download=\"scala\")'\n\n>>>>>>>>>>\n>>>>>>>>>>\n>>>>>>>>>>\n\n"
  Backtrace:
   1. testthat::expect_error(s(m = mc0by2) * "m", "^Number of rows must be at least 1")
   6. rscala:::`*.rscalaBridge`(s(m = mc0by2), "m")
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 22. Error: Basic serialization works (@tests-object-serialization.R#12)  ----
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. rscala:::myExpect(...)
   2. rscala::scalaPush(obj, method, s, ...)
   3. pushers[[method]](x, bridge, ...)
   4. bridge$.R.evalObject("x")
   5. rscala:::scalaInvoke(details, snippet, list(...), parent.frame(1))
   6. rscala:::scalaConnect(details)
  
  -- 23. Error: serialization captures output (@tests-output-serialization.R#6)  -
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
    1. testthat::expect_silent(s2 * "print(\"Hi\")")
    9. rscala:::`*.rscalaBridge`(s2, "print(\"Hi\")")
   10. rscala:::scalaInvoke(...)
   11. rscala:::scalaConnect(details)
  
  Hello 0 from R.
  -- 24. Error: recursive callbacks work (@tests-recursion.R#46)  ----------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(f(0, TRUE), 10L)
   4. rscala:::f(0, TRUE)
   6. rscala:::`*.rscalaBridge`(...)
   7. rscala:::scalaInvoke(...)
   8. rscala:::scalaConnect(details)
  
  -- 25. Error: Basic transcompilation works (@tests-transcompile.R#16)  ---------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. rscala:::myExpect(...)
   2. rscala:::`^.rscalaBridge`(s, f)
   3. rscala:::scalaConnect(details)
  
  -- 26. Error: Apply and update work (@tests-transcompile.R#76)  ----------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. rscala:::myExpect(function() c(11, 12, 13)[c(1, 1, 2, 2, 2, 3)])
   2. rscala:::`^.rscalaBridge`(s, f)
   3. rscala:::scalaConnect(details)
  
  -- 27. Error: More basic transcompilation works (@tests-transcompile.R#102)  ---
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. rscala:::myExpect(f, list(F, F))
   2. rscala:::`^.rscalaBridge`(s, f)
   3. rscala:::scalaConnect(details)
  
  -- 28. Error: Misc. items work as expected (@tests-transcompile.R#124)  --------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`^.rscalaBridge`(...)
   5. rscala:::scalaConnect(details)
  
  -- 29. Error: Scala snippets can be embedded (@tests-transcompile.R#137)  ------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`^.rscalaBridge`(...)
   5. rscala:::scalaConnect(details)
  
  -- 30. Error: Recursion works (@tests-transcompile.R#146)  ---------------------
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical((s^self)(3L), self(3L))
   4. rscala:::`^.rscalaBridge`(s, self)
   5. rscala:::scalaConnect(details)
  
  -- 31. Error: The following work: return, break, next, &&, ||, %%, %/%, T, F, !=
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
    1. testthat::expect_output(...)
   10. rscala:::`^.rscalaBridge`(s, f)
   11. rscala:::scalaConnect(details)
  
  -- 32. Error: length 1 as primitives, bridge without a parameter list (@tests-ve
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s * "0", 0L)
   4. rscala:::`*.rscalaBridge`(s, "0")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 33. Error: length 1 as primitives, bridge with a parameter list (@tests-vecto
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(x = 0L) * "x", 0L)
   4. rscala:::`*.rscalaBridge`(s(x = 0L), "x")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 34. Error: length 1 as vector, bridge with a parameter list (@tests-vectors.R
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(x = I(0L)) * "x(0)", 0L)
   4. rscala:::`*.rscalaBridge`(s(x = I(0L)), "x(0)")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 35. Error: length 0 as primitives, bridge with a parameter list (@tests-vecto
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(s(x = integer()) * "x", integer())
   4. rscala:::`*.rscalaBridge`(s(x = integer()), "x")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  -- 36. Error: length 3 as primitives, bridge with a parameter list (@tests-vecto
  
  
  <<<<<<<<<<
  <<<<<<<<<<
  <<<<<<<<<<
  
  Scala is not found!  Please run 'rscala::scalaConfig(download="scala")'
  
  >>>>>>>>>>
  >>>>>>>>>>
  >>>>>>>>>>
  
  Backtrace:
   1. testthat::expect_identical(...)
   4. rscala:::`*.rscalaBridge`(s(x = c(0L, 1L, 2L)), "x")
   5. rscala:::scalaInvoke(...)
   6. rscala:::scalaConnect(details)
  
  == testthat results  ===========================================================
  [ OK: 2 | SKIPPED: 0 | WARNINGS: 0 | FAILED: 36 ]
  1. Error: primitives work in callbacks (@tests-callbacks.R#8) 
  2. Error: length 1 vectors work in callbacks (@tests-callbacks.R#26) 
  3. Error: length 2 vectors work in callbacks (@tests-callbacks.R#36) 
  4. Error: matrices work in callbacks (@tests-callbacks.R#51) 
  5. Failure: misc. stuff works as expected (@tests-callbacks.R#59) 
  6. Error: we evaluate in the calling R environment. (@tests-callbacks.R#69) 
  7. Error: references work (@tests-dollar.R#8) 
  8. Error: (unknown) (@tests-lexical-scoping.R#15) 
  9. Error: regular matrices transfer to Scala as expected by rows (@tests-matrices.R#12) 
  1. ...
  
  Error: testthat unit tests failed
  Stopping instance. **************************
  Execution halted