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#!/usr/bin/env vpython3
# Copyright 2025 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import unittest
from crate_utils import (
CHROMIUM_DIR,
ConvertCrateIdToCrateEpoch,
ConvertCrateIdToCrateName,
ConvertCrateIdToCrateVersion,
ConvertCrateIdToBuildDir,
ConvertCrateIdToGnLabel,
ConvertCrateIdToVendorDir,
GetCurrentCrateIds,
GetPlaceholderCrateIdForTesting,
IsPlaceholderCrate,
)
class CrateUtilsTests(unittest.TestCase):
def testGetCurrentCrateIds(self):
crate_ids = GetCurrentCrateIds()
self.assertTrue(crate_ids)
def testConvertCrateIdToCrateEpoch(self):
self.assertEqual(ConvertCrateIdToCrateEpoch("foo@0.1.2"), "v0_1")
self.assertEqual(ConvertCrateIdToCrateEpoch("foo@1.2.3"), "v1")
def testConvertCrateIdToBuildDir(self):
actual_dir = ConvertCrateIdToBuildDir("foo-bar@1.2.3")
expected_suffix = os.path.join("third_party", "rust", "foo_bar", "v1")
self.assertEqual(actual_dir, os.path.join(CHROMIUM_DIR,
expected_suffix))
actual_dir = ConvertCrateIdToBuildDir("bar_baz@0.12.3")
expected_suffix = os.path.join("third_party", "rust", "bar_baz",
"v0_12")
self.assertEqual(actual_dir, os.path.join(CHROMIUM_DIR,
expected_suffix))
def testConvertCrateIdToGnLabel(self):
self.assertEqual(ConvertCrateIdToGnLabel("foo-bar@1.2.3"),
"//third_party/rust/foo_bar/v1:lib")
self.assertEqual(ConvertCrateIdToGnLabel("bar_baz@0.12.3"),
"//third_party/rust/bar_baz/v0_12:lib")
def testConvertCrateIdToVendorDir(self):
actual_dir = ConvertCrateIdToVendorDir("foo-bar@1.2.3")
expected_suffix = os.path.join("third_party", "rust",
"chromium_crates_io", "vendor",
"foo-bar-v1")
self.assertEqual(actual_dir, os.path.join(CHROMIUM_DIR,
expected_suffix))
actual_dir = ConvertCrateIdToVendorDir("bar_baz@0.12.3")
expected_suffix = os.path.join("third_party", "rust",
"chromium_crates_io", "vendor",
"bar_baz-v0_12")
self.assertEqual(actual_dir, os.path.join(CHROMIUM_DIR,
expected_suffix))
def testConvertCrateIdToCrateName(self):
self.assertEqual(ConvertCrateIdToCrateName("foo-bar@1.2.3"), "foo-bar")
def testConvertCrateIdToCrateVersion(self):
self.assertEqual(ConvertCrateIdToCrateVersion("foo-bar@1.2.3"), "1.2.3")
class IsPlaceholderCrateTests(unittest.TestCase):
def testCc(self):
crate_id = GetPlaceholderCrateIdForTesting()
self.assertTrue(IsPlaceholderCrate(crate_id))
def testSerde(self):
# This test assumes that `serde` is listed in
# `chromium_crates_io/Cargo.lock` and that
# `chromium_crates_io/vendor/serde...` does *not* contains a placeholder
# crate (see `tools/crates/gnrt/removed_crate.md`).
#
# Unit tests that depend on external state are a bit icky... But it
# seems that this assumption should hold "forever", so...
crate_id = list(
filter(lambda crate_id: "serde@" in crate_id,
GetCurrentCrateIds()))[0]
self.assertFalse(IsPlaceholderCrate(crate_id))
if __name__ == '__main__':
unittest.main()
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