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test: isolate HOME in context-mode-detector tests #57

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Merged
Shahinyanm merged 1 commit into from
Jun 24, 2026
+17 −0
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test: isolate HOME in context-mode-detector tests #57

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17 changes: 17 additions & 0 deletions tests/integration/context-mode-detector.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,14 +6,31 @@ import { detectContextMode } from '../../src/integration/context-mode-detector.j

describe('detectContextMode', () => {
let testDir: string;
let homeDir: string;
let savedHome: string | undefined;
let savedUserProfile: string | undefined;

beforeEach(async () => {
testDir = resolve(tmpdir(), `tp-cm-test-${Date.now()}`);
await mkdir(testDir, { recursive: true });
// detectContextMode falls back to ~/.mcp.json (HOME/USERPROFILE). Point
// those at a clean temp home with no .mcp.json so a real one on the dev
// machine can't make the "no detection" cases report detected=true.
homeDir = resolve(tmpdir(), `tp-cm-home-${Date.now()}`);
await mkdir(homeDir, { recursive: true });
savedHome = process.env.HOME;
savedUserProfile = process.env.USERPROFILE;
process.env.HOME = homeDir;
delete process.env.USERPROFILE;
});

afterEach(async () => {
await rm(testDir, { recursive: true, force: true });
await rm(homeDir, { recursive: true, force: true });
if (savedHome === undefined) delete process.env.HOME;
else process.env.HOME = savedHome;
if (savedUserProfile === undefined) delete process.env.USERPROFILE;
else process.env.USERPROFILE = savedUserProfile;
});

it('returns detected=false when no .mcp.json exists', async () => {
Expand Down