node-x11/test/core-properties.js

var x11 = require('../lib');
var should = require('should');
var assert = require('assert');

  // keep for a while: this snippet helps to track global leak
  global.__defineSetter__('valueName', function(v) {
      console.trace();
  });

describe('Window property', function() {

  var display;
  var X;
  var wid;
  beforeEach(function(done) {
      var client = x11.createClient(function(err, dpy) {
          if (!err) {
              display = dpy;
              X = display.client;
              wid = X.AllocID();
              X.CreateWindow(wid, display.screen[0].root, 0, 0, 100, 100, 0, 0, 0, 0, { eventMask: x11.eventMask.PropertyChange});
              done();
              client.removeListener('error', done); // all future errors should be attached to corresponding test 'done'
          } else {
              done(err);
          }
      });
      client.on('error', done);
  });

  afterEach(function(done) {
      X.terminate();
      X.on('end', done);
      X = null;
      display = null;
  });

  it('shuld exist after set with ChangeProperty', function(done) {
      X.on('error', done);
      var propvalset = "some property value";
      X.ChangeProperty(0, wid, X.atoms.WM_NAME, X.atoms.STRING, 8, propvalset);
      X.GetProperty(0, wid, X.atoms.WM_NAME, X.atoms.STRING, 0, 10000000, function(err, prop) {
          if (err) return done(err);
          var propvalget = prop.data.toString();
          assert.equal(propvalset, propvalget, 'get property result different from set property value');
          done();
      });
  });

  it('should generate PropertyNotify event', function(done) {
      X.on('error', done);
      var propvalset = "some property value";
      X.ChangeProperty(0, wid, X.atoms.WM_NAME, X.atoms.STRING, 8, propvalset);
      X.on('event', function(ev) {
          if (ev.name === 'PropertyNotify')
          {
              assert.equal(ev.atom, X.atoms.WM_NAME, 'atom in notification should be same as in ChangeProperty');
              // TODO: replace 0 with X.PropertyNewValue
              assert.equal(ev.state, 0, 'atom in notification should be same as in ChangeProperty');
              assert.equal(ev.wid, wid, 'window in notification should be same as in ChangeProperty');
              done();
              return;
          }
          done('unexpexted event');
      });
  });

  it('should not exist after DeleteProperty called', function(done) {
      X.on('error', done);
      var propvalset = "some property value";
      X.ChangeProperty(0, wid, X.atoms.WM_NAME, X.atoms.STRING, 8, propvalset);
      X.GetProperty(0, wid, X.atoms.WM_NAME, X.atoms.STRING, 0, 10000000, function(err, prop) {
          if (err) return done(err);
          var propvalget = prop.data.toString();
          assert.equal(propvalset, propvalget, 'get property result different from set property value');
          X.DeleteProperty(wid, X.atoms.WM_NAME);
          X.GetProperty(0, wid, X.atoms.WM_NAME, X.atoms.STRING, 0, 10000000, function(err, prop) {
              assert.equal(prop.type, 0, 'non-existent property type should be 0');
              assert.equal(prop.data.length, 0, 'non-existent property data length should be 0');
              done();
          });
      });
  });

  // it('should exist in the ListProperties result after inserted');
  // it('should not exist after GetProperty with delete flag called');
  //it('should not exist after GetProperty with delete flag called', function(done) {
  //    done();
  //});
});