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Testcontainers is an Elixir library that supports ExUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
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lib/connection/docker_host_strategy_evaluator.ex
# SPDX-License-Identifier: MIT
defmodule Testcontainers.DockerHostStrategyEvaluator do
@moduledoc false
def run_strategies(strategies, input) do
Enum.reduce_while(strategies, [], fn strategy, acc ->
case Testcontainers.DockerHostStrategy.execute(strategy, input) do
{:ok, _result} = success ->
{:halt, success}
error ->
{:cont, [error | acc]}
end
end)
|> case do
{:ok, _} = success ->
success
errors when is_list(errors) ->
{:error, "Failed to find docker host: #{format_errors(errors)}"}
end
end
defp format_errors(errors) do
errors
|> Enum.reverse()
|> Enum.map_join(", ", fn {:error, error} -> inspect(error) end)
end
end