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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/util/struct.ex
defmodule Testcontainers.Util.ListFromDeepStruct do
def from_deep_struct(%{} = map), do: convert(map)
defp convert(%Regex{} = data) do
Regex.source(data)
end
defp convert(data) when is_tuple(data) do
Tuple.to_list(data) |> convert()
end
defp convert(data) when is_list(data) do
data
|> Enum.map(&convert/1) # Recursively convert each list element
end
defp convert(data) when is_struct(data) do
data
|> Map.from_struct()
|> convert() # Recursively convert the struct (now a map)
end
defp convert(data) when is_map(data) do
data
|> Map.to_list() # Convert the map to a list of key-value tuples
|> Enum.reject(fn {_k, v} -> is_nil(v) end) # Filter out entries with nil values
|> Enum.map(fn {k, v} -> {k, convert(v)} end) # Recursively convert both keys and values
|> Enum.sort() # Sort the list to ensure deterministic order
end
defp convert(other), do: other
end