Assert Output Does Not Match Pattern — assert_not_matches • dsprrr

Create an assertion that validates the output does NOT match a regular expression.

Usage

assert_not_matches(
  field = NULL,
  pattern,
  message = NULL,
  ignore_case = FALSE,
  type = c("assert", "suggest")
)

Arguments

field: The output field to check. If NULL, checks the entire output.
pattern: The regular expression pattern that must NOT match.
message: Optional custom error message. If NULL, generates a default.
ignore_case: Logical. If TRUE, matching is case-insensitive. Default FALSE.
type: "assert" for hard assertion (default), "suggest" for soft suggestion.

Value

An Assertion object

Examples

if (FALSE) { # \dontrun{
# Must not contain URLs
assert_not_matches("answer", "https?://", "Must not contain URLs")

# Must not contain code blocks
assert_not_matches("summary", "```", "Must not contain code blocks")
} # }