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Add --protocol-version flag to cli-client example (#2406)

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This commit is contained in:
Felix Weinberger 2026-07-02 13:12:49 +01:00 • committed by GitHub
commit eacf2e5dbe
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1 changed files with 92 additions and 29 deletions
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23
examples/cli-client/test/host.test.ts
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@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest';
import { configFromTargets, interpolateEnv, isHttpServer, parseConfig } from '../host/config';
import { contentBlockToParts, resourceToContextText, stripAnsi, toolResultToParts, truncate } from '../host/content';
import { resolveVersionOptions } from '../host/host';
import { namespaceTool, routeNamespacedTool, sanitizeServerName } from '../host/naming';
describe('tool namespacing and routing', () => {
@ -94,3 +95,25 @@ describe('config parsing', () => {
expect(() => configFromTargets([])).toThrow();
});
});
describe('protocol version selection', () => {
it('defaults to auto probing, --legacy to the plain 2025 handshake', () => {
expect(resolveVersionOptions(false)).toEqual({ versionNegotiation: { mode: 'auto' } });
expect(resolveVersionOptions(true)).toEqual({ versionNegotiation: { mode: 'legacy' } });
});
it('runs a known 2025-era revision through the legacy handshake, offering only that revision', () => {
const expected = { versionNegotiation: { mode: 'legacy' }, supportedProtocolVersions: ['2025-06-18'] };
expect(resolveVersionOptions(false, '2025-06-18')).toEqual(expected);
// --legacy alongside a 2025-era revision is redundant but consistent.
expect(resolveVersionOptions(true, '2025-06-18')).toEqual(expected);
});
it('pins anything newer via the modern handshake', () => {
expect(resolveVersionOptions(false, '2026-07-28')).toEqual({ versionNegotiation: { mode: { pin: '2026-07-28' } } });
});
it('rejects --legacy combined with a revision the 2025 handshake cannot reach', () => {
expect(() => resolveVersionOptions(true, '2026-07-28')).toThrow(/--legacy conflicts with --protocol-version/);
});
});