Differential D2533 Diff 7285 arcanist/linter/TestsLinter.php

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arcanist/linter/TestsLinter.php

This file was added.

				<?php

				/**
				* Uses the lint-tests.sh script to enfore Boost unit tests name conformity
				*/
				final class TestsLinter extends ArcanistExternalLinter {

				public function getInfoName() {
				return 'lint-tests';
				}

				public function getInfoURI() {
				return '';
				}

				public function getInfoDescription() {
				return pht('Check the unit tests for duplicates and ensure the file name '.
				'matches the boost test suite name.');
				}

				public function getLinterName() {
				return 'lint-tests';
				}

				public function getLinterConfigurationName() {
				return 'lint-tests';
				}

				public function getLinterConfigurationOptions() {
				$options = array(
				);

				return $options + parent::getLinterConfigurationOptions();
				}

				public function getDefaultBinary() {
				return Filesystem::resolvePath(
				'test/lint/lint-tests.sh',
				$this->getProjectRoot());
				}

				public function shouldUseInterpreter() {
				return true;
				}

				public function getDefaultInterpreter() {
				return "bash";
				}

				public function getInstallInstructions() {
				return pht('The test/lint/lint-tests.sh script is part of the bitcoin-abc '.
				'project');
				}

				public function shouldExpectCommandErrors() {
				return false;
				}

				protected function getMandatoryFlags() {
				return array(
				);
				}

				protected function parseLinterOutput($path, $err, $stdout, $stderr) {
				/*
				* Stdout contains 2 sections:
				* 1/ Section with name mismatches, in the form:
				* <file path>:BOOST_FIXTURE_TEST_SUITE(<test name>, ...
				* 2/ Section with duplicated test names:
				* <test_name>
				*/

				/*
				* Extract infos from the path
				*
				* Note: the files are already filtered by path thanks to the .arclint
				* configuration. If the file is not a test, the grep will find nothing and
				* there will be no error to parse.
				*/
				$pathinfo = pathinfo($path);
				$testName = $pathinfo['filename'];
				$fileName = $pathinfo['basename'];

				$messages = [];

				/* Search for mismatch, using the line pattern */
				$pattern = '/'.$fileName.':BOOST_FIXTURE_TEST_SUITE\(([\w]+)/';
				$mismatch = preg_match($pattern, $stdout, $matches);

				if ($mismatch) {
				/*
				* Expect a single result as we are testing against a single file.
				* - $matches[0] contains the full mask
				* - $matches[1] contains the captured match
				*/
				if (count($matches) != 2) {
				throw new Exception(
				pht('Found multiple matches for a single file, lint-tests.sh output '.
				'is not formatted as expected, aborting.'));
				}

				$mismatchName = $matches[1];
				$messages[] = id(new ArcanistLintMessage())
				->setGranularity(ArcanistLinter::GRANULARITY_FILE)
				->setCode('TESTS')
				->setPath($path)
				->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
				->setName('Name mismatch')
				->setDescription(
				'The Boost test suite name must match the file name (set to "'.
				$mismatchName.'", should be "'.$testName.'").');
				}

				/*
				* Search for unicity, searching for test name alone on its line.
				* The test name can be whether the one extracted from the file name or the
				* one extracted from the BOOST_FIXTURE_TEST_SUITE content.
				*/
				if ($mismatch) {
				$pattern = '/^'.$testName.'\|'.$mismatchName.'$/';
				} else {
				$pattern = '/^'.$testName.'$/';
				}

				$notUnique = preg_match($pattern, $stdout, $matches);

				/*
				* Do not check the number of matches here.
				* Because it is a test against unicity, there is a global search which can
				* possibly return an output matching our expected test name AND our actual
				* test name. This would be weird, but not impossible.
				* Just returning an error for the first one is enough, as the linter will
				* be rerun after the name is fix and the other match will then eventually
				* get catched.
				*/

				if ($notUnique) {
				$messages[] = id(new ArcanistLintMessage())
				->setGranularity(ArcanistLinter::GRANULARITY_FILE)
				->setCode('TESTS')
				->setPath($path)
				->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
				->setName('Duplicated name')
				->setDescription('The test name "'.$matches[0].'" already exists');
				}

				return $messages;
				}
				}

				?>