Test that the expression itself is of a specific class.
Returns TRUE if e$expr is of the given class.
expr_is_a(class)
class |
expected |
TRUE or FALSE
Other AnswerTests:
AnswerTests,
any_of_exprs(),
calculates_same_value(),
expr_creates_var(),
expr_identical_to(),
expr_uses_func(),
func_of_newvar_equals(),
omnitest(),
val_has_length(),
val_matches(),
var_is_a()
## Not run:
# Test if the expression entered by a user is an assignment
#
expr_is_a('<-')
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.