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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/docker_host_from_env.ex
# SPDX-License-Identifier: MIT
defmodule Testcontainers.Connection.DockerHostStrategy.DockerHostFromEnv do
defstruct key: "DOCKER_HOST"
defimpl Testcontainers.Connection.DockerHostStrategy do
def execute(strategy, _input) do
case System.get_env(strategy.key) do
nil ->
{:error, docker_host_from_env: :docker_host_not_found}
"" ->
{:error, docker_host_from_env: :docker_host_empty}
docker_host when is_binary(docker_host) ->
{:ok, docker_host}
end
end
end
end