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const { FunctionPrototypeBind, SafeMap } = primordials;
const {
createHook,
executionAsyncId,
} = require('async_hooks');
const {
codes: {
ERR_TEST_FAILURE,
},
} = require('internal/errors');
const { Test } = require('internal/test_runner/test');
function createProcessEventHandler(eventName, rootTest, testResources) {
return (err) => {
// Check if this error is coming from a test. If it is, fail the test.
const test = testResources.get(executionAsyncId());
if (test !== undefined) {
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) {
const testResources = new SafeMap();
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, testResources);
const rejectionHandler =
createProcessEventHandler('unhandledRejection', root, testResources);
process.on('uncaughtException', exceptionHandler);
process.on('unhandledRejection', rejectionHandler);
process.on('beforeExit', () => {
root.postRun();
let passCount = 0;
let failCount = 0;
let skipCount = 0;
let todoCount = 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.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, `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) {
process.exitCode = 1;
}
});
root.reporter.pipe(process.stdout);
root.reporter.version();
}
function test(name, options, fn) {
// If this is the first test encountered, bootstrap the test harness.
if (this.subtests.length === 0) {
setup(this);
}
const subtest = this.createSubtest(name, options, fn);
return subtest.start();
}
const root = new Test({ name: '<root>' });
module.exports = FunctionPrototypeBind(test, root);
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