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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /tools/code-coverage/PerTestCoverageUtils.sys.mjs | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/code-coverage/PerTestCoverageUtils.sys.mjs | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tools/code-coverage/PerTestCoverageUtils.sys.mjs b/tools/code-coverage/PerTestCoverageUtils.sys.mjs new file mode 100644 index 0000000000..1ae0887a07 --- /dev/null +++ b/tools/code-coverage/PerTestCoverageUtils.sys.mjs @@ -0,0 +1,90 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* exported PerTestCoverageUtils */ + +// This is the directory where gcov is emitting the gcda files. +const gcovPrefixPath = Services.env.get("GCOV_PREFIX"); +// This is the directory where codecoverage.py is expecting to see the gcda files. +const gcovResultsPath = Services.env.get("GCOV_RESULTS_DIR"); +// This is the directory where the JS engine is emitting the lcov files. +const jsvmPrefixPath = Services.env.get("JS_CODE_COVERAGE_OUTPUT_DIR"); +// This is the directory where codecoverage.py is expecting to see the lcov files. +const jsvmResultsPath = Services.env.get("JSVM_RESULTS_DIR"); + +function awaitPromise(promise) { + let ret; + let complete = false; + let error = null; + promise + .catch(e => (error = e)) + .then(v => { + ret = v; + complete = true; + }); + Services.tm.spinEventLoopUntil( + "PerTestCoverageUtils.sys.mjs:awaitPromise", + () => complete + ); + if (error) { + throw new Error(error); + } + return ret; +} + +export var PerTestCoverageUtils = class PerTestCoverageUtilsClass { + // Resets the counters to 0. + static async beforeTest() { + if (!PerTestCoverageUtils.enabled) { + return; + } + + // Flush the counters. + let codeCoverageService = Cc[ + "@mozilla.org/tools/code-coverage;1" + ].getService(Ci.nsICodeCoverage); + await codeCoverageService.flushCounters(); + + // Remove coverage files created by the flush, and those that might have been created between the end of a previous test and the beginning of the next one (e.g. some tests can create a new content process for every sub-test). + await IOUtils.remove(gcovPrefixPath, { + recursive: true, + ignoreAbsent: true, + }); + await IOUtils.remove(jsvmPrefixPath, { + recursive: true, + ignoreAbsent: true, + }); + + // Move coverage files from the GCOV_RESULTS_DIR and JSVM_RESULTS_DIR directories, so we can accumulate the counters. + await IOUtils.move(gcovResultsPath, gcovPrefixPath); + await IOUtils.move(jsvmResultsPath, jsvmPrefixPath); + } + + static beforeTestSync() { + awaitPromise(this.beforeTest()); + } + + // Dumps counters and moves the gcda files in the directory expected by codecoverage.py. + static async afterTest() { + if (!PerTestCoverageUtils.enabled) { + return; + } + + // Flush the counters. + let codeCoverageService = Cc[ + "@mozilla.org/tools/code-coverage;1" + ].getService(Ci.nsICodeCoverage); + await codeCoverageService.flushCounters(); + + // Move the coverage files in GCOV_RESULTS_DIR and JSVM_RESULTS_DIR, so that the execution from now to shutdown (or next test) is not counted. + await IOUtils.move(gcovPrefixPath, gcovResultsPath); + await IOUtils.move(jsvmPrefixPath, jsvmResultsPath); + } + + static afterTestSync() { + awaitPromise(this.afterTest()); + } +}; + +PerTestCoverageUtils.enabled = !!gcovResultsPath; |