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const {
ArrayPrototypeForEach,
FunctionPrototypeBind,
SafeMap,
} = primordials;
const {
createHook,
executionAsyncId,
} = require('async_hooks');
const {
codes: {
ERR_TEST_FAILURE,
},
} = require('internal/errors');
const { Test, ItTest, Suite } = require('internal/test_runner/test');
const testResources = new SafeMap();
const root = new Test({ __proto__: null, name: '<root>' });
let wasRootSetup = false;
function createProcessEventHandler(eventName, rootTest) {
return (err) => {
// Check if this error is coming from a test. If it is, fail the test.
const test = testResources.get(executionAsyncId());
if (!test) {
throw err;
}
if (test.finished) {
// If the test is already finished, report this as a top level
// diagnostic since this is a malformed test.
const msg = `Warning: Test "${test.name}" generated asynchronous ` +
'activity after the test ended. This activity created the error ' +
`"${err}" and would have caused the test to fail, but instead ` +
`triggered an ${eventName} event.`;
rootTest.diagnostic(msg);
return;
}
test.fail(new ERR_TEST_FAILURE(err, eventName));
test.postRun();
};
}
function setup(root) {
if (wasRootSetup) {
return root;
}
const hook = createHook({
init(asyncId, type, triggerAsyncId, resource) {
if (resource instanceof Test) {
testResources.set(asyncId, resource);
return;
}
const parent = testResources.get(triggerAsyncId);
if (parent !== undefined) {
testResources.set(asyncId, parent);
}
},
destroy(asyncId) {
testResources.delete(asyncId);
}
});
hook.enable();
const exceptionHandler =
createProcessEventHandler('uncaughtException', root);
const rejectionHandler =
createProcessEventHandler('unhandledRejection', root);
const exitHandler = () => {
root.postRun();
let passCount = 0;
let failCount = 0;
let skipCount = 0;
let todoCount = 0;
let cancelledCount = 0;
for (let i = 0; i < root.subtests.length; i++) {
const test = root.subtests[i];
// Check SKIP and TODO tests first, as those should not be counted as
// failures.
if (test.skipped) {
skipCount++;
} else if (test.isTodo) {
todoCount++;
} else if (test.cancelled) {
cancelledCount++;
} else if (!test.passed) {
failCount++;
} else {
passCount++;
}
}
root.reporter.plan(root.indent, root.subtests.length);
for (let i = 0; i < root.diagnostics.length; i++) {
root.reporter.diagnostic(root.indent, root.diagnostics[i]);
}
root.reporter.diagnostic(root.indent, `tests ${root.subtests.length}`);
root.reporter.diagnostic(root.indent, `pass ${passCount}`);
root.reporter.diagnostic(root.indent, `fail ${failCount}`);
root.reporter.diagnostic(root.indent, `cancelled ${cancelledCount}`);
root.reporter.diagnostic(root.indent, `skipped ${skipCount}`);
root.reporter.diagnostic(root.indent, `todo ${todoCount}`);
root.reporter.diagnostic(root.indent, `duration_ms ${process.uptime()}`);
root.reporter.push(null);
hook.disable();
process.removeListener('unhandledRejection', rejectionHandler);
process.removeListener('uncaughtException', exceptionHandler);
if (failCount > 0 || cancelledCount > 0) {
process.exitCode = 1;
}
};
const terminationHandler = () => {
exitHandler();
process.exit();
};
process.on('uncaughtException', exceptionHandler);
process.on('unhandledRejection', rejectionHandler);
process.on('beforeExit', exitHandler);
process.on('SIGINT', terminationHandler);
process.on('SIGTERM', terminationHandler);
root.reporter.pipe(process.stdout);
root.reporter.version();
wasRootSetup = true;
return root;
}
function test(name, options, fn) {
const subtest = setup(root).createSubtest(Test, name, options, fn);
return subtest.start();
}
function runInParentContext(Factory) {
function run(name, options, fn, overrides) {
const parent = testResources.get(executionAsyncId()) || setup(root);
const subtest = parent.createSubtest(Factory, name, options, fn, overrides);
if (parent === root) {
subtest.start();
}
}
const cb = (name, options, fn) => {
run(name, options, fn);
};
ArrayPrototypeForEach(['skip', 'todo'], (keyword) => {
cb[keyword] = (name, options, fn) => {
run(name, options, fn, { [keyword]: true });
};
});
return cb;
}
module.exports = {
test: FunctionPrototypeBind(test, root),
describe: runInParentContext(Suite),
it: runInParentContext(ItTest),
};
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