Function reference • testthat

Expectations
Objects
`expect_equal()` `expect_identical()`	Does code return the expected value?
`expect_type()` `expect_s3_class()` `expect_s4_class()`	Does code return an object inheriting from the expected base type, S3 class, or S4 class?
Vectors
`expect_length()`	Does code return a vector with the specified length?
`expect_lt()` `expect_lte()` `expect_gt()` `expect_gte()`	Does code return a number greater/less than the expected value?
`expect_named()`	Does code return a vector with (given) names?
`expect_setequal()` `expect_mapequal()`	Does code return a vector containing the expected values?
`expect_true()` `expect_false()`	Does code return `TRUE` or `FALSE`?
`expect_vector()`	Does code return a vector with the expected size and/or prototype?
Side-effects
`expect_error()` `expect_warning()` `expect_message()` `expect_condition()`	Does code throw an error, warning, message, or other condition?
`expect_invisible()` `expect_visible()`	Does code return a visible or invisible object?
`expect_output()`	Does code print output to the console?
`expect_silent()`	Does code execute silently?
`local_test_context()` `local_reproducible_output()`	Locally set options for maximal test reproducibility
Snapshot testing
`expect_snapshot()` `expect_snapshot_output()` `expect_snapshot_error()` `expect_snapshot_warning()` `expect_snapshot_value()`	Snapshot testing
`expect_snapshot_file()` `announce_snapshot_file()` `compare_file_binary()` `compare_file_text()`	Snapshot testing for whole files
`snapshot_accept()` `snapshot_review()`	Snapshot management
Test helpers
`is_testing()` `is_parallel()` `testing_package()`	Determine testing status
`skip()` `skip_if_not()` `skip_if()` `skip_if_not_installed()` `skip_if_offline()` `skip_on_cran()` `skip_on_os()` `skip_on_travis()` `skip_on_appveyor()` `skip_on_ci()` `skip_on_covr()` `skip_on_bioc()` `skip_if_translated()`	Skip a test
`teardown_env()`	Run code after all test files
Run tests
`auto_test()`	Watches code and tests for changes, rerunning tests as appropriate.
`auto_test_package()`	Watches a package for changes, rerunning tests as appropriate.
`describe()`	describe: a BDD testing language
`test_file()`	Run all tests in a single file
`test_package()` `test_check()` `test_local()`	Run all tests in a package
`test_path()`	Locate file in testing directory.
`test_that()`	Run a test
`use_catch()`	Use Catch for C++ Unit Testing
Reporters
`CheckReporter`	Check reporter: 13 line summary of problems
`DebugReporter`	Test reporter: start recovery.
`FailReporter`	Test reporter: fail at end.
`JunitReporter`	Test reporter: summary of errors in jUnit XML format.
`ListReporter`	List reporter: gather all test results along with elapsed time and file information.
`LocationReporter`	Test reporter: location
`MinimalReporter`	Test reporter: minimal.
`MultiReporter`	Multi reporter: combine several reporters in one.
`ProgressReporter`	Test reporter: interactive progress bar of errors.
`RStudioReporter`	Test reporter: RStudio
`SilentReporter`	Test reporter: gather all errors silently.
`StopReporter`	Test reporter: stop on error
`SummaryReporter`	Test reporter: summary of errors.
`TapReporter`	Test reporter: TAP format.
`TeamcityReporter`	Test reporter: Teamcity format.
Expectation internals
`expect()`	The building block of all `expect_` functions
`fail()` `succeed()`	Default expectations that always succeed or fail.

Reference

Expectations

Objects

Vectors

Side-effects

Snapshot testing

Test helpers

Run tests

Reporters

Expectation internals