unzip/test/unzipTest.js

'use strict';

var test = require('tap').test;
var fs = require('fs');
var path = require('path');
var temp = require('temp');
var dirdiff = require('dirdiff');
var streamBuffers = require("stream-buffers");
var unzip = require('../');

test("uncompressed archive", function (t) {
  var archive = path.join(__dirname, '../testData/uncompressed/archive.zip');

  temp.mkdir('node-unzip-', function (err, dirPath) {
    if (err) {
      throw err;
    }
    var unzipExtractor = unzip.Extract({ path: dirPath });
    unzipExtractor.on('error', function(err) {
      throw err;
    });
    unzipExtractor.on('close', testExtractionResults);

    fs.createReadStream(archive).pipe(unzipExtractor);

    function testExtractionResults() {
      dirdiff(path.join(__dirname, '../testData/uncompressed/inflated'), dirPath, {
        fileContents: true
      }, function (err, diffs) {
        if (err) {
          throw err;
        }
        t.equal(diffs.length, 0, 'extracted directory contents');
        t.end();
      });
    }
  });
});

test("compressed archive", function (t) {
  var archive = path.join(__dirname, '../testData/compressed/archive.zip');

  temp.mkdir('node-unzip-', function (err, dirPath) {
    if (err) {
      throw err;
    }
    var unzipExtractor = unzip.Extract({ path: dirPath });
    unzipExtractor.on('error', function(err) {
      throw err;
    });
    unzipExtractor.on('close', testExtractionResults);

    fs.createReadStream(archive).pipe(unzipExtractor);

    function testExtractionResults() {
      dirdiff(path.join(__dirname, '../testData/compressed/inflated'), dirPath, {
        fileContents: true
      }, function (err, diffs) {
        if (err) {
          throw err;
        }
        t.equal(diffs.length, 0, 'extracted directory contents');
        t.end();
      });
    }
  });
});

test("pipe a single file entry out of a zip", function (t) {
  var archive = path.join(__dirname, '../testData/compressed/archive.zip');

  fs.createReadStream(archive)
    .pipe(unzip.Parse())
    .on('entry', function(entry) {
      if (entry.path === 'file.txt') {
        var writableStream = new streamBuffers.WritableStreamBuffer();
        writableStream.on('close', function () {
          var str = writableStream.getContentsAsString('utf8');
          var fileStr = fs.readFileSync(path.join(__dirname, '../testData/compressed/inflated/file.txt'), 'utf8')
          t.equal(str, fileStr);
          t.end();
        });
        entry.pipe(writableStream);
      }
    });
});