test-zlib-invalid-input.js

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// test uncompressing invalid input

var tape = require('tape'),
    zlib = require('../');

tape('non-strings', function(t) {
  var nonStringInputs = [1, true, {a: 1}, ['a']];
  t.plan(12);

  nonStringInputs.forEach(function(input) {
    // zlib.gunzip should not throw an error when called with bad input.
    t.doesNotThrow(function() {
      zlib.gunzip(input, function(err, buffer) {
        // zlib.gunzip should pass the error to the callback.
        t.ok(err);
      });
    });
  });
});

tape('unzips', function(t) {
  // zlib.Unzip classes need to get valid data, or else they'll throw.
  var unzips = [ zlib.Unzip(),
                 zlib.Gunzip(),
                 zlib.Inflate(),
                 zlib.InflateRaw() ];
                 
  t.plan(4);
  unzips.forEach(function (uz, i) {
    uz.on('error', function(er) {
      t.ok(er);
    });

    uz.on('end', function(er) {
      throw new Error('end event should not be emitted '+uz.constructor.name);
    });

    // this will trigger error event
    uz.write('this is not valid compressed data.');
  });
});