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Mini Shell
Mini Shell
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const assert = require("assert");
const path = require("path");
const sinon = require("sinon");
const settings_1 = require("../settings");
const tests = require("../tests");
const async_1 = require("./async");
class TestReader extends async_1.default {
constructor(_root, _settings = new settings_1.default()) {
super(_root, _settings);
this._scandir = sinon.stub();
}
get scandir() {
return this._scandir;
}
}
describe('Readers → Async', () => {
describe('.read', () => {
it('should emit "error" event when the first call of scandir is broken', (done) => {
const reader = new TestReader('non-exist-directory');
reader.scandir.yields(tests.EPERM_ERRNO);
reader.onError((error) => {
assert.ok(error);
done();
});
reader.read();
});
it('should emit "end" event when the first call of scandir is broken but this error can be suppressed', (done) => {
const settings = new settings_1.default({
errorFilter: (error) => error.code === 'EPERM'
});
const reader = new TestReader('non-exist-directory', settings);
reader.scandir.yields(tests.EPERM_ERRNO);
reader.onEnd(() => {
done();
});
reader.read();
});
it('should do not emit events after first broken scandir call', (done) => {
const reader = new TestReader('directory');
const firstFakeDirectoryEntry = tests.buildFakeDirectoryEntry({ name: 'a', path: 'directory/a' });
const secondFakeDirectoryEntry = tests.buildFakeDirectoryEntry({ name: 'b', path: 'directory/b' });
reader.scandir.onFirstCall().yields(null, [firstFakeDirectoryEntry, secondFakeDirectoryEntry]);
reader.scandir.onSecondCall().yieldsAsync(tests.EPERM_ERRNO);
reader.scandir.onThirdCall().yieldsAsync(tests.EPERM_ERRNO);
/**
* If the behavior is broken, then a third scandir call will trigger an unhandled error.
*/
reader.onError((error) => {
assert.ok(error);
done();
});
reader.read();
});
it('should return entries', (done) => {
const reader = new TestReader('directory');
const fakeDirectoryEntry = tests.buildFakeDirectoryEntry();
const fakeFileEntry = tests.buildFakeFileEntry();
reader.scandir.onFirstCall().yields(null, [fakeDirectoryEntry]);
reader.scandir.onSecondCall().yields(null, [fakeFileEntry]);
const entries = [];
reader.onEntry((entry) => entries.push(entry));
reader.onEnd(() => {
assert.deepStrictEqual(entries, [fakeDirectoryEntry, fakeFileEntry]);
done();
});
reader.read();
});
it('should push to results only directories', (done) => {
const settings = new settings_1.default({ entryFilter: (entry) => !entry.dirent.isFile() });
const reader = new TestReader('directory', settings);
const fakeDirectoryEntry = tests.buildFakeDirectoryEntry();
const fakeFileEntry = tests.buildFakeFileEntry();
reader.scandir.onFirstCall().yields(null, [fakeDirectoryEntry]);
reader.scandir.onSecondCall().yields(null, [fakeFileEntry]);
const entries = [];
reader.onEntry((entry) => entries.push(entry));
reader.onEnd(() => {
assert.deepStrictEqual(entries, [fakeDirectoryEntry]);
done();
});
reader.read();
});
it('should do not read root directory', (done) => {
const settings = new settings_1.default({ deepFilter: () => false });
const reader = new TestReader('directory', settings);
const fakeDirectoryEntry = tests.buildFakeDirectoryEntry();
const fakeFileEntry = tests.buildFakeFileEntry();
reader.scandir.onFirstCall().yields(null, [fakeDirectoryEntry]);
reader.scandir.onSecondCall().yields(null, [fakeFileEntry]);
const entries = [];
reader.onEntry((entry) => entries.push(entry));
reader.onEnd(() => {
assert.deepStrictEqual(entries, [fakeDirectoryEntry]);
done();
});
reader.read();
});
it('should set base path to entry when the `basePath` option is exist', (done) => {
const settings = new settings_1.default({ basePath: 'base' });
const reader = new TestReader('directory', settings);
const fakeDirectoryEntry = tests.buildFakeDirectoryEntry();
const fakeFileEntry = tests.buildFakeFileEntry();
reader.scandir.onFirstCall().yields(null, [fakeDirectoryEntry]);
reader.scandir.onSecondCall().yields(null, [fakeFileEntry]);
const entries = [];
reader.onEntry((entry) => entries.push(entry));
reader.onEnd(() => {
assert.strictEqual(entries[0].path, path.join('base', fakeDirectoryEntry.name));
assert.strictEqual(entries[1].path, path.join('base', 'fake', fakeFileEntry.name));
done();
});
reader.read();
});
it('should set base path to entry when the `basePath` option is exist and value is an empty string', (done) => {
const settings = new settings_1.default({ basePath: '' });
const reader = new TestReader('directory', settings);
const fakeDirectoryEntry = tests.buildFakeDirectoryEntry();
const fakeFileEntry = tests.buildFakeFileEntry();
reader.scandir.onFirstCall().yields(null, [fakeDirectoryEntry]);
reader.scandir.onSecondCall().yields(null, [fakeFileEntry]);
const entries = [];
reader.onEntry((entry) => entries.push(entry));
reader.onEnd(() => {
assert.strictEqual(entries[0].path, path.join(fakeDirectoryEntry.name));
assert.strictEqual(entries[1].path, path.join('fake', fakeFileEntry.name));
done();
});
reader.read();
});
});
describe('.destroy', () => {
it('should do not emit entries after destroy', (done) => {
const reader = new TestReader('directory');
const firstFakeDirectoryEntry = tests.buildFakeDirectoryEntry({ name: 'a', path: 'directory/a' });
const fakeFileEntry = tests.buildFakeFileEntry();
reader.scandir.onFirstCall().yields(null, [firstFakeDirectoryEntry]);
reader.scandir.onSecondCall().yields(null, [fakeFileEntry]);
reader.onEntry((entry) => {
if (entry.name === 'a') {
reader.destroy();
}
else {
assert.fail('should do not emit entries after destroy');
}
});
reader.onEnd(() => {
done();
});
reader.read();
});
it('should mark stream as "destroyed" after first destroy', () => {
const reader = new TestReader('directory');
reader.destroy();
assert.ok(reader.isDestroyed);
});
it('should throw an error when trying to destroy reader twice', () => {
const reader = new TestReader('directory');
const expectedErrorMessageRe = /The reader is already destroyed/;
reader.destroy();
assert.throws(() => reader.destroy(), expectedErrorMessageRe);
});
});
});
Zerion Mini Shell 1.0