HexDocs MCP

defmodule HexdocsMcp.MixDepsTest do use ExUnit.Case, async: false alias HexdocsMcp.MixDeps describe "read_deps/1" do setup do tmp_dir = Path.join(System.tmp_dir!(), "hexdocs_mcp_test_#{System.unique_integer([:positive])}") File.mkdir_p!(tmp_dir) on_exit(fn -> File.rm_rf!(tmp_dir) end) {:ok, tmp_dir: tmp_dir} end test "raises error when file doesn't exist" do assert_raise RuntimeError, "Mix file not found: nonexistent.exs", fn -> MixDeps.read_deps("nonexistent.exs") end end test "parses hex dependencies from mix.exs", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project def project do [ app: :test_app, version: "0.1.0", deps: [ {:phoenix, "~> 1.7.0"}, {:ecto, "~> 3.10"}, {:local_dep, path: "../local"}, {:git_dep, git: "https://github.com/user/repo"}, {:hex_dep_with_opts, version: "1.0.0"}, {:hex_dep_explicit, hex: "1.2.3"}, {:hex_dep_with_requirement, "~> 2.0.0", hex: "hexpm"} ] ] end end """) deps = MixDeps.read_deps(path) assert deps == [ {"phoenix", "~> 1.7.0"}, {"ecto", "~> 3.10"}, {"hex_dep_with_opts", "1.0.0"}, {"hex_dep_explicit", "1.2.3"}, {"hex_dep_with_requirement", "~> 2.0.0"} ] end test "handles no project function", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project end """) assert_raise RuntimeError, fn -> MixDeps.read_deps(path) end end test "handles no deps in project", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project def project do [ app: :test_app, version: "0.1.0" ] end end """) assert MixDeps.read_deps(path) == [] end test "handles empty deps list", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project def project do [ app: :test_app, version: "0.1.0", deps: [] ] end end """) assert MixDeps.read_deps(path) == [] end test "ignores non-hex dependencies", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project def project do [ app: :test_app, version: "0.1.0", deps: [ {:local_dep, path: "../local"}, {:git_dep, git: "https://github.com/user/repo"} ] ] end end """) assert MixDeps.read_deps(path) == [] end test "handles invalid syntax", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project def project do [ app: :test_app, version: "0.1.0", deps: [ {:invalid_dep, ] end end """) assert catch_error(MixDeps.read_deps(path)) end test "handles deps with module attributes", %{tmp_dir: tmp_dir} do path = setup_test_mix_file(tmp_dir, """ defmodule TestProject do use Mix.Project @version "1.0.0" def project do [ app: :test_app, version: @version, deps: [ {:phoenix, @version}, {:ecto, "~> 3.0"} ] ] end end """) deps = MixDeps.read_deps(path) assert {"ecto", "~> 3.0"} in deps end end defp setup_test_mix_file(tmp_dir, content) do path = Path.join(tmp_dir, "test_mix.exs") File.write!(path, content) path end end