expr_identical_to: Test that the user has entered a particular expression.

In swirldev/swirl: Learn R, in R

Description

Test that the user has entered an expression identical to that given as the first argument.

Usage

expr_identical_to(correct_expression)

Arguments

correct_expression

the correct or expected expression as a string

Value

TRUE or FALSE

See Also

Other AnswerTests: AnswerTests, any_of_exprs(), calculates_same_value(), expr_creates_var(), expr_is_a(), expr_uses_func(), func_of_newvar_equals(), omnitest(), val_has_length(), val_matches(), var_is_a()

Examples

## Not run: 
  # Test that a user has entered a particular command
  #
  expr_identical_to('myVar <- c(3, 5, 7)')

## End(Not run)

swirldev/swirl documentation built on Jan. 17, 2020, 6:28 p.m.