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BDD testing framework for Elixir inspired by RSpec.
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Files
lib/espec/assertions/raise_exception.ex
defmodule ESpec.Assertions.RaiseException do
use ESpec.Assertions.Interface
defp match(subject, []) do
try do
subject.()
{false, false}
rescue
_error -> {true, false}
end
end
defp match(subject, [module]) do
try do
subject.()
{false, {false, nil}}
rescue
error ->
if error.__struct__ == module do
{true, error.__struct__}
else
{false, error.__struct__}
end
end
end
defp match(subject, [module, mes]) do
try do
subject.()
{false, false}
rescue
error ->
if error.__struct__ == module && Exception.message(error) == mes do
{true, [error.__struct__, Exception.message(error)]}
else
{false, [error.__struct__, Exception.message(error)]}
end
end
end
defp success_message(subject, [], _result, positive) do
to = if positive, do: "raises", else: "doesn't raise"
"#{inspect subject} #{to} an exception."
end
defp success_message(subject, [module], _result, positive) do
to = if positive, do: "raises", else: "doesn't raise"
"#{inspect subject} #{to} the `#{module}` exception."
end
defp success_message(subject, [module, message], _result, positive) do
to = if positive, do: "raises", else: "doesn't raise"
"#{inspect subject} #{to} the `#{module}` exception with the message `#{message}`."
end
defp error_message(subject, [], false, positive) do
if positive do
"Expected #{inspect subject} to raise an exception, but nothing was raised."
else
"Expected #{inspect subject} to not raise an exception, but an exception was raised."
end
end
defp error_message(subject, [module], err_module, positive) do
if positive do
"Expected #{inspect subject} to raise the `#{module}` exception, but nothing was raised."
else
"Expected #{inspect subject} to not raise the `#{module}` exception, but the `#{err_module}` exception was raised."
end
end
defp error_message(subject, [module, message], false, positive) do
to = if positive, do: "to", else: "not to"
"Expected #{inspect subject} #{to} raise the `#{module}` exception with the message `#{message}`, but nothing was raised."
end
defp error_message(subject, [module, message], [err_module, err_message], positive) do
to = if positive, do: "to", else: "not to"
"Expected #{inspect subject} #{to} raise the `#{module}` exception with the message `#{message}`, but the `#{err_module}` exception was raised with the message `#{err_message}`."
end
end