memfs/lib/node-to-fsa/__tests__/scenarios.test.js

In-memory file-system with Node's fs API.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const __1 = require("..");
const __2 = require("../..");
const util_1 = require("../../__tests__/util");
(0, util_1.onlyOnNode20)('scenarios', () => {
    test('can init FSA from an arbitrary FS folder and execute operations', async () => {
        const { fs, vol } = (0, __2.memfs)({
            '/tmp': null,
            '/etc': null,
            '/bin': null,
            '/Users/kasper/Documents/shopping-list.txt': 'Milk, Eggs, Bread',
        });
        const dir = (0, __1.nodeToFsa)(fs, '/Users/kasper/Documents', { mode: 'readwrite' });
        const shoppingListFile = await dir.getFileHandle('shopping-list.txt');
        const shoppingList = await shoppingListFile.getFile();
        expect(await shoppingList.text()).toBe('Milk, Eggs, Bread');
        const backupsDir = await dir.getDirectoryHandle('backups', { create: true });
        const backupFile = await backupsDir.getFileHandle('shopping-list.txt', { create: true });
        const writable = await backupFile.createWritable();
        await writable.write(await shoppingList.arrayBuffer());
        await writable.close();
        const logsFileHandle = await dir.getFileHandle('logs.csv', { create: true });
        const logsWritable = await logsFileHandle.createWritable();
        await logsWritable.write('timestamp,level,message\n');
        await logsWritable.write({ type: 'write', data: '2021-01-01T00:00:00Z,INFO,Hello World\n' });
        await logsWritable.close();
        expect(vol.toJSON()).toStrictEqual({
            '/tmp': null,
            '/etc': null,
            '/bin': null,
            '/Users/kasper/Documents/shopping-list.txt': 'Milk, Eggs, Bread',
            '/Users/kasper/Documents/backups/shopping-list.txt': 'Milk, Eggs, Bread',
            '/Users/kasper/Documents/logs.csv': 'timestamp,level,message\n2021-01-01T00:00:00Z,INFO,Hello World\n',
        });
    });
});
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