expect_ functionsCall expect() when writing your own expectations. See
vignette("custom-expectation") for details.
expect(
ok,
failure_message,
info = NULL,
srcref = NULL,
trace = NULL,
trace_env = caller_env()
)An expectation object. Signals the expectation condition
with a continue_test restart.
TRUE or FALSE indicating if the expectation was successful.
Message to show if the expectation failed.
Character vector continuing additional information. Included for backward compatibility only and new expectations should not use it.
Location of the failure. Should only needed to be explicitly supplied when you need to forward a srcref captured elsewhere.
An optional backtrace created by rlang::trace_back().
When supplied, the expectation is displayed with the backtrace.
If is.null(trace), this is used to automatically
generate a traceback running from test_code()/test_file() to
trace_env. You'll generally only need to set this if you're wrapping
an expectation inside another function.
While expect() creates and signals an expectation in one go,
exp_signal() separately signals an expectation that you
have manually created with new_expectation(). Expectations are
signalled with the following protocol:
If the expectation is a failure or an error, it is signalled with
base::stop(). Otherwise, it is signalled with
base::signalCondition().
The continue_test restart is registered. When invoked, failing
expectations are ignored and normal control flow is resumed to
run the other tests.
exp_signal()