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30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
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"""Unit tests for starlark helpers
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See https://docs.bazel.build/versions/main/skylark/testing.html#for-testing-starlark-utilities
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"""
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load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest")
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load("//lib/private:expand_make_vars.bzl", "expand_variables")
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def _variables_test_impl(ctx):
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env = unittest.begin(ctx)
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capture_subs = {}
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fake_ctx = struct(
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bin_dir = struct(path = "bazel-bin"),
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label = struct(
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workspace_root = "my-wksp",
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package = "path/to",
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),
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expand_make_variables = lambda attr, expr, subs: capture_subs.update(subs),
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)
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expand_variables(fake_ctx, "output=$(@D)")
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expected = {"@D": "bazel-bin/my-wksp/path/to", "RULEDIR": "bazel-bin/my-wksp/path/to"}
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asserts.equals(env, expected, capture_subs)
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return unittest.end(env)
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# The unittest library requires that we export the test cases as named test rules,
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# but their names are arbitrary and don't appear anywhere.
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t0_test = unittest.make(_variables_test_impl)
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def expand_make_vars_test_suite(name):
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unittest.suite(name, t0_test)
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