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Improve AggregateError specs

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* Assert that the right inner stack traces are in the right places
* Drop the integration tests. All of the AggregateError-specific code
  is in ExceptionFormatter, so the integration tests just duplicate
  existing integration tests and the ExceptionFormatter specs.
This commit is contained in:
Steve Gravrock
2026-02-07 11:23:05 -08:00
parent c216ae1d13
commit b88ce2d49f
2 changed files with 32 additions and 112 deletions
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60
spec/core/ExceptionFormatterSpec.js
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@@ -350,48 +350,52 @@ describe('ExceptionFormatter', function() {
describe('when the error has an errors array (AggregateError)', function() {
it('includes all aggregated errors in the stack trace', function() {
const subject = new privateUnderTest.ExceptionFormatter();
const error1 = new Error('first error');
const error2 = new Error('second error');
const error3 = new Error('third error');
const aggregateError = new Error('Multiple errors occurred');
aggregateError.errors = [error1, error2, error3];
const error1 = (function fn1() {
return new Error('first error');
})();
const error2 = (function fn2() {
return new Error('second error');
})();
const aggregateError = (function fn3() {
return new Error('Multiple errors occurred');
})();
aggregateError.errors = [error1, error2];
const lines = subject.stack(aggregateError).split('\n');
// TODO: be consistent across environments about whether the message is
// included in the stack trace
if (lines[0] === 'Error: Multiple errors occurred') {
lines.shift();
}
for (let i = 0; i < lines.length; i++) {
jasmine.debugLog(`Line ${i}: ${lines[i]}`);
}
expect(lines[0])
.withContext('first stack frame of the overall error')
.toMatch(/fn3.*core\/ExceptionFormatterSpec\.js/);
const error1MsgIx = lines.findIndex(line =>
line.includes('Error 1: Error: first error')
);
expect(error1MsgIx)
.withContext('first error message')
.withContext('first nested error message')
.toBeGreaterThan(-1);
expect(lines[error1MsgIx + 1])
.withContext('first stack frame of first nested error')
.toMatch(/fn1.*core\/ExceptionFormatterSpec\.js/);
const error2MsgIx = lines.findIndex(line =>
line.includes('Error 2: Error: second error')
);
expect(error2MsgIx)
.withContext('second error message')
.withContext('second nested error message')
.toBeGreaterThan(error1MsgIx);
const error3MsgIx = lines.findIndex(line =>
line.includes('Error 3: Error: third error')
);
expect(error3MsgIx)
.withContext('third error message')
.toBeGreaterThan(error2MsgIx);
});
it('handles AggregateError with single error', function() {
const subject = new privateUnderTest.ExceptionFormatter();
const error1 = new Error('single error');
const aggregateError = new Error('One error occurred');
aggregateError.errors = [error1];
const lines = subject.stack(aggregateError).split('\n');
const error1MsgIx = lines.findIndex(line =>
line.includes('Error 1: Error: single error')
);
expect(error1MsgIx).toBeGreaterThan(-1);
expect(lines[error2MsgIx + 1])
.withContext('first stack frame of second nested error')
.toMatch(/fn2.*core\/ExceptionFormatterSpec\.js/);
});
it('handles empty errors array', function() {