Running 'testthat.R' [2s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(futile.logger)
  > test_check("futile.logger")
  Saving _problems/test_layout-7.R
  Saving _problems/test_layout-16.R
  Saving _problems/test_layout-23.R
  Saving _problems/test_layout-29.R
  Saving _problems/test_layout-35.R
  Saving _problems/test_logger-6.R
  Saving _problems/test_logger-14.R
  Saving _problems/test_logger-22.R
  Saving _problems/test_logger-34.R
  Saving _problems/test_logger-47.R
  Saving _problems/test_logger-61.R
  Saving _problems/test_logger-80.R
  [ FAIL 12 | WARN 1 | SKIP 0 | PASS 40 ]
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test_layout.R:7:3'): Embedded format string ─────────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(grep("INFO", raw)) > 0, is_true()) at test_layout.R:7:3
  ── Error ('test_layout.R:16:3'): Custom layout dereferences level field ────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that("xxx[INFO]xxx" == raw, is_true()) at test_layout.R:16:3
  ── Error ('test_layout.R:23:3'): Raw null value is printed ─────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(...) at test_layout.R:23:3
  ── Error ('test_layout.R:29:3'): Single null value is printed ──────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(...) at test_layout.R:29:3
  ── Error ('test_layout.R:35:3'): Null is printed amongst variables ─────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(...) at test_layout.R:35:3
  ── Error ('test_logger.R:6:3'): Default settings ───────────────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(grep("INFO", raw)) > 0, is_true()) at test_logger.R:6:3
  ── Error ('test_logger.R:14:3'): Change root threshold ─────────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(raw) == 0, is_true()) at test_logger.R:14:3
  ── Error ('test_logger.R:22:3'): Capture works as expected ─────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(raw) == 9, is_true()) at test_logger.R:22:3
  ── Error ('test_logger.R:34:3'): Create new logger ─────────────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(raw.root) == 0, is_true()) at test_logger.R:34:3
  ── Error ('test_logger.R:47:3'): Hierarchy is honored ──────────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(raw.root) == 0, is_true()) at test_logger.R:47:3
  ── Error ('test_logger.R:61:3'): Hierarchy inheritance ─────────────────────────
  Error in `is_true()`: could not find function "is_true"
  Backtrace:
      ▆
   1. └─testthat::expect_that(length(raw.root) == 0, is_true()) at test_logger.R:61:3
  ── Error ('test_logger.R:80:3'): carp returns output ───────────────────────────
  Error in `is_false()`: could not find function "is_false"
  Backtrace:
      ▆
   1. └─testthat::expect_that(flog.carp(), is_false()) at test_logger.R:80:3
  
  [ FAIL 12 | WARN 1 | SKIP 0 | PASS 40 ]
  Error:
  ! Test failures.
  Execution halted