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BDD testing framework for Elixir inspired by RSpec.
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lib/espec/assertions/map/have_key.ex
defmodule ESpec.Assertions.Map.HaveKey do
@moduledoc """
Defines 'have_key' assertion.
it do: expect(dict).to have_key(value)
"""
use ESpec.Assertions.Interface
defp match(dict, val) do
result = Map.has_key?(dict, val)
{result, result}
end
defp success_message(dict, val, _result, positive) do
to = if positive, do: "has", else: "doesn't have"
"`#{inspect(dict)}` #{to} key `#{inspect(val)}`."
end
defp error_message(dict, val, _result, positive) do
to = if positive, do: "to", else: "not to"
but = if positive, do: "doesn't have", else: "has"
"Expected `#{inspect(dict)}` #{to} have key `#{inspect(val)}` but it #{but}."
end
end