assertions (version 0.1.0)

assert_equal: Assert that the input objects are equal

Description

Is x equal to y. powered by the all.equal() function.

Usage

assert_equal(
  x,
  y,
  tolerance = sqrt(.Machine$double.eps),
  check_names = TRUE,
  check_environment = TRUE,
  check_tzone = TRUE,
  msg = NULL,
  call = rlang::caller_env(),
  arg_name = NULL
)

Value

invisible(TRUE) if x is equal to the specified value, otherwise aborts with the error message specified by msg

Arguments

x

An object to check

y

The value to compare against

tolerance

Differences smaller than tolerance are not reported. The default value is close to 1.5e-8 (numeric >= 0).

check_names

should the names(.) of target and current should be compare (flag)

check_environment

should the environments of functions should be compared? You may need to set check.environment=FALSE in unexpected cases, such as when comparing two nls() fits. (flag)

check_tzone

should "tzone" attributes be compared. Important for comparing POSIXt objects. (flag)

msg

A character string containing the error message to display if x is not equal to y

call

Only relevant when pooling assertions into multi-assertion helper functions. See cli_abort for details.

arg_name

Advanced use only. Name of the argument passed (default: NULL, will automatically extract arg_name).

Examples

try({
assert_equal(3, 3) # Passes
assert_equal(c(3, 3, 3), 3, ) # Fails
assert_equal(2, 3) # Throws error
})