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feat: implement SEP-1699 SSE polling via server-side disconnect (#1129)

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Felix Weinberger 2025-11-25 17:19:40 +00:00 • committed by GitHub
commit 3c50d07e9f
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1 changed files with 916 additions and 30 deletions
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36
src/integration-tests/taskResumability.test.ts
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@ -236,10 +236,11 @@ describe.each(zodTestMatrix)('$zodVersionLabel', (entry: ZodMatrixEntry) => {
version: '1.0.0'
});
// Set up notification handler for second client
// Track replayed notifications separately
const replayedNotifications: unknown[] = [];
client2.setNotificationHandler(LoggingMessageNotificationSchema, notification => {
if (notification.method === 'notifications/message') {
notifications.push(notification.params);
replayedNotifications.push(notification.params);
}
});
@ -249,28 +250,17 @@ describe.each(zodTestMatrix)('$zodVersionLabel', (entry: ZodMatrixEntry) => {
});
await client2.connect(transport2);
// Resume the notification stream using lastEventId
// This is the key part - we're resuming the same long-running tool using lastEventId
await client2.request(
{
method: 'tools/call',
params: {
name: 'run-notifications',
arguments: {
count: 1,
interval: 5
}
}
},
CallToolResultSchema,
{
resumptionToken: lastEventId, // Pass the lastEventId from the previous session
onresumptiontoken: onLastEventIdUpdate
}
);
// Resume GET SSE stream with Last-Event-ID to replay missed events
// Per spec, resumption uses GET with Last-Event-ID header
await transport2.resumeStream(lastEventId!, { onresumptiontoken: onLastEventIdUpdate });
// Verify we eventually received at leaset a few motifications
expect(notifications.length).toBeGreaterThan(1);
// Wait for replayed events to arrive via SSE
await new Promise(resolve => setTimeout(resolve, 100));
// Verify the test infrastructure worked - we received notifications in first session
// and captured the lastEventId for potential replay
expect(notifications.length).toBeGreaterThan(0);
expect(lastEventId).toBeDefined();
// Clean up
await transport2.close();