42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
"""Keep production dependencies within the boundaries in ADR 0004."""
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import pathlib
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import tomllib
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import unittest
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ROOT = pathlib.Path(__file__).resolve().parents[2]
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def dependency_graph():
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workspace = tomllib.loads((ROOT / "Cargo.toml").read_text())
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graph = {}
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for member in workspace["workspace"]["members"]:
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manifest = tomllib.loads((ROOT / member / "Cargo.toml").read_text())
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dependencies = set(manifest.get("dependencies", {}))
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for target in manifest.get("target", {}).values():
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dependencies.update(target.get("dependencies", {}))
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graph[manifest["package"]["name"]] = dependencies
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return graph
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def reachable(graph, package):
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seen = set()
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pending = list(graph.get(package, ()))
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while pending:
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dependency = pending.pop()
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if dependency not in seen:
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seen.add(dependency)
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pending.extend(graph.get(dependency, ()))
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return seen
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class ComponentBoundaries(unittest.TestCase):
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def test_shell_does_not_depend_on_core(self):
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self.assertNotIn("ferese-core", reachable(dependency_graph(), "ferese-shell"))
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def test_transitive_dependencies_are_checked(self):
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self.assertIn("core", reachable({"shell": {"helper"}, "helper": {"core"}}, "shell"))
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if __name__ == "__main__":
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unittest.main()
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