test: add FileStore tests

Author: joaomoreno

src/test/store.test.ts

@@ -0,0 +1,59 @@
+import * as assert from 'assert';
+import * as tmp from 'tmp';
+import * as fs from 'fs';
+import { FileStore } from '../store';
+
+describe('FileStore', () => {
+	it('works', async () => {
+		const name = tmp.tmpNameSync();
+		const store = await FileStore.open(name);
+
+		assert.deepStrictEqual(store.get('joe'), undefined);
+		assert.ok(!fs.existsSync(name));
+
+		await store.add({ name: 'joe', pat: 'abc' });
+		assert.deepStrictEqual(store.get('joe'), { name: 'joe', pat: 'abc' });
+		assert.deepStrictEqual(JSON.parse(fs.readFileSync(name, 'utf8')), {
+			publishers: [{ name: 'joe', pat: 'abc' }],
+		});
+
+		await store.add({ name: 'joe', pat: 'what' });
+		assert.deepStrictEqual(store.get('joe'), { name: 'joe', pat: 'what' });
+		assert.deepStrictEqual(JSON.parse(fs.readFileSync(name, 'utf8')), {
+			publishers: [{ name: 'joe', pat: 'what' }],
+		});
+
+		await store.add({ name: 'jane', pat: 'oh' });
+		assert.deepStrictEqual(store.get('joe'), { name: 'joe', pat: 'what' });
+		assert.deepStrictEqual(store.get('jane'), { name: 'jane', pat: 'oh' });
+		assert.deepStrictEqual(JSON.parse(fs.readFileSync(name, 'utf8')), {
+			publishers: [
+				{ name: 'joe', pat: 'what' },
+				{ name: 'jane', pat: 'oh' },
+			],
+		});
+
+		await store.delete('joe');
+		assert.deepStrictEqual(store.get('joe'), undefined);
+		assert.deepStrictEqual(store.get('jane'), { name: 'jane', pat: 'oh' });
+		assert.deepStrictEqual(JSON.parse(fs.readFileSync(name, 'utf8')), {
+			publishers: [{ name: 'jane', pat: 'oh' }],
+		});
+
+		await store.delete('joe');
+		assert.deepStrictEqual(store.get('joe'), undefined);
+		assert.deepStrictEqual(store.get('jane'), { name: 'jane', pat: 'oh' });
+		assert.deepStrictEqual(JSON.parse(fs.readFileSync(name, 'utf8')), {
+			publishers: [{ name: 'jane', pat: 'oh' }],
+		});
+
+		await store.delete('jane');
+		assert.deepStrictEqual(store.get('joe'), undefined);
+		assert.deepStrictEqual(store.get('jane'), undefined);
+		assert.deepStrictEqual(JSON.parse(fs.readFileSync(name, 'utf8')), {
+			publishers: [],
+		});
+
+		fs.unlinkSync(name);
+	});
+});