philomena/test/support/utilities.ex
2025-02-14 16:47:14 -08:00

28 lines
837 B
Elixir

import ExUnit.Assertions
defmodule Philomena.TestUtilities do
defp assert_retry(_, attempts, max_retries, _) when attempts > max_retries, do: false
defp assert_retry(evalulation_lambda, attempts, max_retries, timeout_in_ms) do
case evalulation_lambda.() do
true ->
true
false ->
Process.sleep(timeout_in_ms)
assert_retry(evalulation_lambda, attempts + 1, max_retries, timeout_in_ms)
end
end
@doc """
Asserts the result of a lambda after at most max_retries times for a truthy value.
## Examples
iex> assert_retry(&(false))
Expected truthy, got false
"""
def assert_retry(evaluation_lambda, max_retries \\ 3, timeout_in_ms \\ 1000)
when is_function(evaluation_lambda) do
assert assert_retry(evaluation_lambda, 0, max_retries, timeout_in_ms)
end
end