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0.31.0
Testing module
← Testing
Matchers
assert_that
require_that
explain
is
not
all_of
any_of
greater_than
at_least
less_than
at_most
between
near
contains
starts_with
ends_with
is_empty
has_length
has_item
each
is_null
not_null
is_true
is_false
of_type
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std
/
Extensions
/
Testing
/
is_null
is_null
procedure · 1 overload
since 0.30.0
Source
is_null
:: () ->
Matcher
Returns
Matcher
See also
has_item
each
not_null
is_true