You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.6 KiB
107 lines
3.6 KiB
7 years ago
|
'use strict';
|
||
|
|
|
||
|
|
var lineByLine = require('./readlines.js');
|
||
|
|
|
||
|
|
var assert = require('assert');
|
||
|
|
|
||
|
|
describe('Line by line', function() {
|
||
|
|
it('should get all lines', function () {
|
||
|
|
var filename = __dirname + '/dummy_files/twoLineFile.txt';
|
||
|
|
|
||
|
|
var liner = new lineByLine(filename);
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'hello');
|
||
|
|
assert(liner.next().toString('ascii') === 'hello2');
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should get all lines even if the file doesnt end with new line', function () {
|
||
|
|
var filename = __dirname + '/dummy_files/badEndFile.txt';
|
||
|
|
|
||
|
|
var liner = new lineByLine(filename);
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'google.com');
|
||
|
|
assert(liner.next().toString('ascii') === 'yahoo.com');
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should get all lines if there is no new lines', function () {
|
||
|
|
var filename = __dirname + '/dummy_files/noNewLinesFile.txt';
|
||
|
|
|
||
|
|
var liner = new lineByLine(filename);
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'no new line');
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should handle empty files', function () {
|
||
|
|
var filename = __dirname + '/dummy_files/emptyFile.txt';
|
||
|
|
|
||
|
|
var liner = new lineByLine(filename);
|
||
|
|
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should read right between two chunks', function () {
|
||
|
|
var filename = __dirname + '/dummy_files/normalFile.txt';
|
||
|
|
var liner = new lineByLine(filename, {'readChunk': 16});
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'google.com');
|
||
|
|
assert(liner.next().toString('ascii') === 'yahoo.com');
|
||
|
|
assert(liner.next().toString('ascii') === 'yandex.ru');
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should read empty lines', function () {
|
||
|
|
var filename = __dirname + '/dummy_files/withEmptyLines.txt';
|
||
|
|
var liner = new lineByLine(filename);
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'hello');
|
||
|
|
assert(liner.next().toString('ascii') === 'hello4');
|
||
|
|
assert(liner.next().toString('ascii') === '');
|
||
|
|
assert(liner.next().toString('ascii') === 'hello2');
|
||
|
|
assert(liner.next().toString('ascii') === 'hello3');
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should reset and start from the beggining', function() {
|
||
|
|
var filename = __dirname + '/dummy_files/normalFile.txt';
|
||
|
|
var liner = new lineByLine(filename, {'readChunk': 16});
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'google.com');
|
||
|
|
assert(liner.next().toString('ascii') === 'yahoo.com');
|
||
|
|
|
||
|
|
liner.reset()
|
||
|
|
|
||
|
|
assert(liner.next().toString('ascii') === 'google.com');
|
||
|
|
assert(liner.next().toString('ascii') === 'yahoo.com');
|
||
|
|
assert(liner.next().toString('ascii') === 'yandex.ru');
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should read big lines', function() {
|
||
|
|
var filename = __dirname + '/dummy_files/bigLines.json';
|
||
|
|
var liner = new lineByLine(filename);
|
||
|
|
|
||
|
|
var parsedLine = JSON.parse(liner.next().toString('ascii'));
|
||
|
|
assert(parsedLine);
|
||
|
|
|
||
|
|
var parsedLine = JSON.parse(liner.next().toString('ascii'));
|
||
|
|
assert(parsedLine);
|
||
|
|
|
||
|
|
var parsedLine = JSON.parse(liner.next().toString('ascii'));
|
||
|
|
assert(parsedLine);
|
||
|
|
|
||
|
|
assert(liner.next() === false);
|
||
|
|
assert(liner.fd === null);
|
||
|
|
});
|
||
|
|
});
|