add red test for gitignore scope logic

webpro-nl#678

packages/knip/fixtures/gitignore-scope/.gitignore

@@ -0,0 +1 @@
+fixtures/

packages/knip/fixtures/gitignore-scope/index.mjs

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+import glob from 'glob'
+glob.escape('something')

packages/knip/fixtures/gitignore-scope/package.json

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+{
+  "name": "@fixtures/gitignore-scope",
+  "main": "index.mjs",
+  "dependencies": {
+    "glob": "^10.3.12"
+  }
+}

packages/knip/test/gitignore-scope.test.ts

@@ -0,0 +1,21 @@
+import { test } from 'bun:test';
+import assert from 'node:assert/strict';
+import { main } from '../src/index.js';
+import { resolve } from '../src/util/path.js';
+import baseArguments from './helpers/baseArguments.js';
+
+const cwd = resolve('fixtures/gitignore-scope');
+
+test('test acceptance: cwd should contain "fixtures" in path or the test obsolete', () => {
+  assert(cwd.includes('/fixtures/'))
+})
+
+test('Obey gitignore-scope logic', async () => {
+  const { issues } = await main({
+    ...baseArguments,
+    cwd,
+    gitignore: true,
+  });
+
+  assert.equal(issues.dependencies, {});
+});