expect_match {testthat} | R Documentation |
Expectation: does string match a regular expression?
expect_match(object, regexp, perl = FALSE, fixed = FALSE, ..., all = TRUE, info = NULL, label = NULL)
object |
Object to test. Supports limited unquoting to make it easier to generate readable failures within a function or for loop. See quasi_label for more details. |
regexp |
Regular expression to test against. |
perl |
logical. Should Perl-compatible regexps be used? |
fixed |
logical. If |
... |
Arguments passed on to
|
all |
Should all elements of actual value match |
info |
Extra information to be included in the message. This argument is soft-deprecated and should not be used in new code. Instead see alternatives in quasi_label. |
label |
Used to customise failure messages. For expert use only. |
expect_match()
is a wrapper around grepl()
. See its documentation for
more detail about the individual arguments.
Other expectations: comparison-expectations
,
equality-expectations
,
expect_error
, expect_length
,
expect_message
, expect_named
,
expect_null
, expect_output
,
expect_silent
,
inheritance-expectations
,
logical-expectations
expect_match("Testing is fun", "fun") expect_match("Testing is fun", "f.n") ## Not run: expect_match("Testing is fun", "horrible") # Zero-length inputs always fail expect_match(character(), ".") ## End(Not run)