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BDD testing framework for Elixir inspired by RSpec.
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lib/espec/assertions/match.ex
defmodule ESpec.Assertions.Match do
@moduledoc """
Defines 'match' (=~) assertion.
it do: expect(actual).to match(expected)
"""
use ESpec.Assertions.Interface
defp match(subject, value) do
result = subject =~ value
{result, result}
end
defp success_message(subject, data, _result, positive) do
to = if positive, do: "matches", else: "doesn't match"
"`#{inspect(subject)}` #{to} (=~) `#{inspect(data)}`."
end
defp error_message(subject, data, _result, positive) do
to = if positive, do: "to", else: "not to"
but = if positive, do: "doesn't", else: "does"
"Expected `#{inspect(subject)}` #{to} match (=~) `#{inspect(data)}`, but it #{but}."
end
end