free_mutant/meta/regexp/regexp_bos_anchor.rb

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Mutant::Meta::Example.add :regexp_bos_anchor do
source '/\A/'
singleton_mutations
# match all inputs
mutation '//'
# match no input
mutation '/nomatch\A/'
end
Mutant::Meta::Example.add :regexp_bos_anchor do
source '/^#{a}/'
singleton_mutations
mutation '/^#{nil}/'
mutation '/^#{self}/'
# match all inputs
mutation '//'
# match no input
mutation '/nomatch\A/'
end