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test: withEnv() for the config-ladder tests (isolation rule R1)

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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Garry Tan
2026-08-08 18:05:06 -07:00
co-authored by Claude Fable 5
parent f7eef99293
commit 9faa919e6e
1 changed files with 15 additions and 16 deletions
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test/extract-cross-source-links.test.ts
+15 -16
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@@ -19,11 +19,12 @@
* DB config > default false.
*/
import { describe, test, expect, afterEach } from 'bun:test';
import { describe, test, expect } from 'bun:test';
import { resolveCandidateSources } from '../src/commands/extract.ts';
import { isCrossSourceLinksEnabled } from '../src/core/link-extraction.ts';
import type { LinkCandidate } from '../src/core/link-extraction.ts';
import type { BrainEngine } from '../src/core/engine.ts';
import { withEnv } from './helpers/with-env.ts';
function cand(targetSlug: string, fromSlug?: string): LinkCandidate {
return {
@@ -119,31 +120,29 @@ describe('#2589 resolveCandidateSources — cross-source targets', () => {
});
describe('#2589 isCrossSourceLinksEnabled — #972 resolution ladder', () => {
const saved = process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE;
afterEach(() => {
if (saved === undefined) delete process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE;
else process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE = saved;
});
function engineWith(dbVal: string | null): BrainEngine {
return { getConfig: async () => dbVal } as unknown as BrainEngine;
}
test('default false (no env, no config)', async () => {
delete process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE;
expect(await isCrossSourceLinksEnabled(engineWith(null))).toBe(false);
await withEnv({ GBRAIN_LINK_RESOLUTION_CROSS_SOURCE: undefined }, async () => {
expect(await isCrossSourceLinksEnabled(engineWith(null))).toBe(false);
});
});
test('DB config enables', async () => {
delete process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE;
expect(await isCrossSourceLinksEnabled(engineWith('true'))).toBe(true);
expect(await isCrossSourceLinksEnabled(engineWith('off'))).toBe(false);
await withEnv({ GBRAIN_LINK_RESOLUTION_CROSS_SOURCE: undefined }, async () => {
expect(await isCrossSourceLinksEnabled(engineWith('true'))).toBe(true);
expect(await isCrossSourceLinksEnabled(engineWith('off'))).toBe(false);
});
});
test('env overrides DB config in BOTH directions (operator escape hatch)', async () => {
process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE = '1';
expect(await isCrossSourceLinksEnabled(engineWith(null))).toBe(true);
process.env.GBRAIN_LINK_RESOLUTION_CROSS_SOURCE = '0';
expect(await isCrossSourceLinksEnabled(engineWith('true'))).toBe(false);
await withEnv({ GBRAIN_LINK_RESOLUTION_CROSS_SOURCE: '1' }, async () => {
expect(await isCrossSourceLinksEnabled(engineWith(null))).toBe(true);
});
await withEnv({ GBRAIN_LINK_RESOLUTION_CROSS_SOURCE: '0' }, async () => {
expect(await isCrossSourceLinksEnabled(engineWith('true'))).toBe(false);
});
});
});