testthat 3.2.2

New expectations

• expect_s7_class() tests if an object is an S7 class (#1580).

• expect_no_failure(), expect_no_success() and expect_snapshot_failure()
  provide more options for testing expectations.

Bug fixes and minor improvements

• testthat now requires waldo 0.6.0 or later to access the latest features
  (#1955).

• expect_condition() and related functions now include the class of the
  expected condition in the failure message, if provided (#1987).

• expect_error() and friends now error if you supply ... but not pattern
  (#1932). They no longer give an uninformative error if they fail inside
  a magrittr pipe (#1994).

• expect_no_*() expectations no longer incorrectly emit a passing test result
  if they in fact fail (#1997).

• expect_setequal() correctly identifies what is missing where (#1962).

• expect_snapshot() now strips line breaks in test descriptions
  (@LDSamson, #1900), and errors when called from a test_that() that has an
  empty description (@kevinushey, #1980).

• expect_true() and expect_false() give better errors if actual isn't a
  vector (#1996).

• expect_visible() and expect_invisible() have clearer failure messages
  (#1966).

• local_reproducible_output() (used in test_that() blocks) now sets
  LANGUAGE to "C" instead of "en" to disable translations,
  avoiding warnings on some platforms (#1925).

• skip_if_not_installed() generates a clearer message that sorts better
  (@MichaelChirico, #1959).

• with_mock() and local_mock() have been unconditionally deprecated as
  they will no longer work in future versions of R (#1999).

testthat 3.2.1

• Fix incorrect format string detected by latest R-devel. Fix thanks to
  Tomas Kalibera.

• expect_snapshot() handles unexpected errors like errors outside of
  snapshots, i.e. they terminate the entire test and get a traceback (#1906).

• JunitReporter() now uses ensures numeric values are saved the xml file
  with . as decimal separator. (@maksymiuks, #1660)

• local_mocked_bindings() can now mock any object, not just functions
  (#1896).

• skip_if_offline() now uses captive.apple.com by default. This is the
  hostname that Apple devices use to check that they're online so it should
  have a higher reliability than r-project.org (@jdblischak, #1890).

• test_file(desc = ) will now find describe() tests as well as test_that()
  tests (#1903).

testthat 3.2.0

Lifecycle changes

• is_informative_error() and the wrap argument to test_dir() and friends
  are now defunct.

• expect_no_error(), expect_no_warning(), expect_no_message(),
  expect_no_condition(), local_mocked_bindings(), and
  with_mocked_bindings() are now stable, not experimental.

New features

• All packages, regardless of whether or not they use rlang 1.0.0, now
  use the new snapshot display for errors, warnings, and messages (#1856).
  This no longer shows the class name, instead focussing on a display that
  more closely mimics what you'll see interactively, including showing the
  error call.

• testthat uses an improved algorithm for finding the srcref associated with
  an expectation/error/warning/skip. It now looks for the most recent call
  that has known source and is found inside the test_that() call. This
  generally gives more specific locations than the previous approach and
  gives much better locations if an error occurs in an exit handler.

Minor features and bug fixes

• Helpers are no longer run twice.

• expect_setequal() correctly displays results when only one of actual and
  expected is missing elements (#1835).

• expect_snapshot() and friends no longer create a temporary file on every
  invocation.

• expect_snapshot_file() now generates clickable links to review changes
  (#1821).

• expect_snapshot_value() has an improved error if the object can't be
  safely serialized using the specified style (#1771).

• options(rlang_interactive = TRUE) no longer causes skip_on_cran() to
  not run on CRAN (#1868).

• skip_if_offline() now errors if you don't have curl installed (#1854).

• StopReporter gains the ability to suppress praise when a test passes.

• ProgressReporter now uses is a two characters wide skip column in order
  to have a consistent width when 10 or more tests are skipped in a single file
  (@mgirlich, #1844).

• test_file() gains a desc argument which allows you to run a single
  test from a file (#1776).

testthat 3.1.10

• Fix for upcoming R-devel release.

• testthat now sets the _R_CHECK_BROWSER_NONINTERACTIVE_ environment variable
  when running tests. This should ensure that left-over browser() statements
  will trigger an error if encountered while running tests. This functionality
  is only enabled with R (>= 4.3.0). (#1825)

testthat 3.1.9

• New expect_contains() and expect_in() that works similarly to
  expect_true(all(expected %in% object)) or
  expect_true(all(object %in% expected)) but give more informative failure
  messages (#1346).

• New is_snapshot() returns TRUE if code is running inside a snapshot test
  (#1796) and is_checking() returns TRUE if test is running inside of
  R CMD check (#1795)

• ProgressReporter only reports the run time of test files that take longer
  than 1s, rather than 0.1s. (#1806) and re-displays all failures at the end
  of the results. Skips are now only shown at the end of reporter summaries,
  not as tests are run. This makes them less intrusive in interactive tests
  while still allowing you to verify that the correct tests are skipped (#1801).
  When using parallel tests, links to failed tests (#1787) and links to
  accept/review snapshot (#1802) now work.

• set_state_inspector() allows to to register a function that's called
  before and after every test, reporting on any differences. This
  is very useful for detecting if any of your tests have made changes to
  global state (like options, env vars, or connections) (#1674). This
  function was inspired by renv's testing infrastructure.

• skip_on_cran() no longer skips (errors) when run interactively.

• teardown_env() works in more cases.

• All packages, regardless of whether or not they use rlang, now
  use the new snapshot display for errors, warnings, and messages.

• testthat no longer truncates tracebacks and uses rlang's default tree
  display.

testthat 3.1.8

• expect_snapshot() differences no longer use quotes.

• expect_error(), expect_warning(), and expect_message() now correctly
  enforce that the condition is of the expected base class (e.g. error,
  warning, messsage) even when the class argument is used (#1168).

• it() now calls local_test_context() so that it behaves more
  similarly to test_that() (#1731), and is now exported so that you
  can more easily run BDD tests interactively (#1587)

• skip_on_bioc() now uses the documented environment variable
  (IS_BIOC_BUILD_MACHINE) (#1712).

• source_file(), which is used by various parts of the helper and
  setup/teardown machinery, now reports the file name in the case of
  errors (#1704).

• test_path() now works when called within helper files (#1562).

• New vignette("special-files") describes the various special files
  that testthat uses (#1638).

• with_mocked_bindings() and local_mocked_bindings() now also bind in the
  imports namespace and can mock S3 methods. These changes make them good
  substitutes for the deprecated functions with_mock() and local_mock(), so
  those older functions now recommend switching to the newer equivalents
  instead of using the mockr or mockery packages.

testthat 3.1.7

• expect_setequal() gives more actionable feedback (#1657).

• expect_snapshot() no longer elides new lines when run interactively (#1726).

• Experimental new with_mocked_bindings() and local_mocked_bindings()
  (#1739).

testthat 3.1.6

• The embedded version of Catch no longer uses sprintf().

testthat 3.1.5

• Deprecation warnings are no longer captured by expect_warning(code, NA),
  expect_no_warning(code), or expect_silent(code). This ensures that they
  bubble up to the top level so that you can address them (#1680). If you want
  to assert that code does not throw a deprecation warning, use
  expect_no_condition(code(), class = "lifecycle_warning_deprecation").

• New experimental expect_no_error(), expect_no_warning(),
  expect_no_message(), and expect_no_condition() for asserting
  the code runs without an error, warning, message, or condition (#1679).

• Fixed a warning in R >=4.2.0 on Windows that occurred when using the C++
  testing infrastructure that testthat provides (#1672).

• Fixed an issue that could prevent compilation of Catch unit tests with
  LLVM 15. In the interim, packages needing a local workaround can set
  PKG_CPPFLAGS = -DCATCH_CONFIG_CPP11_NO_SHUFFLE in their src/Makevars.
  (@kevinushey, #1687)

• Improve way capture_output() handles encoding thanks to suggestion from
  Kurt Hornik (#1693). This means that snapshots using UTF-8 encoded text on
  windows work once again.

• local_reproducible_output() will no longer attempt to set the local language
  when LANG='C' is set or an R version is used that was not compiled with
  natural language support (NLS), which would previously emit non-test-related
  warnings during testing (@dgkf, #1662; @heavywatal, #1689).

• test_check() now suppresses hyperlinks since they'll take you to the wrong
  places (#1648).

• New set_max_fails() helper to make it easier to set the maximum number of
  failures before stopping the test suite. And the advice to set to Inf is
  now clickable (#1628).

• You can now configure the behaviour of the implicit
  devtools::load_all() call performed by devtools::test() in your
  package DESCRIPTION file (#1636). To disable exports of internal
  functions and of testthat helpers, use:

  Config/testthat/load-all: list(export_all = FALSE, helpers = FALSE)
  

  Helpers are now attached on the search path by default after calling
  devtools::test().

testthat 3.1.4

• Minor tweaks to output for latest cli (#1606).