Mutate the empty string literal to a placeholder string — string_fill • muttest

Replaces "" with a fill string (default "mutant") so that code paths that depend on an empty string can be detected.

Usage

string_fill(fill = "mutant")

Arguments

fill: The replacement string. Defaults to "mutant". Override when the codebase already contains "mutant" as a meaningful value.

Value

A Mutator object.

Examples

string_fill()
#> Mutator: "" → "mutant"
#> Query: (string) @value
string_fill(fill = "PLACEHOLDER")
#> Mutator: "" → "PLACEHOLDER"
#> Query: (string) @value