From d571226c0b1482bda6675572286c44434245f205 Mon Sep 17 00:00:00 2001
From: Santiago Gimeno <santiago.gimeno@quantion.es>
Date: Mon, 4 Nov 2013 16:05:31 +0100
Subject: [PATCH] Add ChangeProperty test

---
 test/change-property.js | 77 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 test/change-property.js

diff --git a/test/change-property.js b/test/change-property.js
new file mode 100644
index 0000000..756ea65
--- /dev/null
+++ b/test/change-property.js
@@ -0,0 +1,77 @@
+var x11 = require('../lib');
+var should = require('should');
+
+var TEST_PROPERTY = 'My Test Property';
+
+describe('ChangeProperty', function() {
+    before(function(done) {
+        var self = this;
+        var client = x11.createClient(function(err, dpy) {
+            should.not.exist(err);
+            self.X = dpy.client;
+            self.wid = self.X.AllocID();
+            self.wid_helper = self.X.AllocID();
+            self.X.CreateWindow(self.wid, dpy.screen[0].root, 0, 0, 1, 1); // 1x1 pixel window
+            self.X.QueryTree(dpy.screen[0].root, function(err, list) {
+                should.not.exist(err);
+                list.children.indexOf(self.wid).should.not.equal(-1);
+                done();
+            });
+        });
+
+        client.on('error', done);
+    });
+
+    it('should add a new WINDOW property with length 1', function(done) {
+        var self = this;
+        this.X.InternAtom(false, TEST_PROPERTY, function(err, atom) {
+            should.not.exist(err);
+            var raw = new Buffer(4);
+            raw.writeUInt32LE(self.wid, 0);
+            self.X.ChangeProperty(0, self.wid, atom, self.X.atoms.WINDOW, 32, raw);
+            self.X.GetProperty(0, self.wid, atom, self.X.atoms.WINDOW, 0, 1000000000, function(err, prop) {
+                should.not.exist(err);
+                prop.data.readUInt32LE(0).should.equal(self.wid);
+                done();
+            });
+        });
+    });
+
+    it('should add a new WINDOW property with length 2', function(done) {
+        var self = this;
+        this.X.InternAtom(false, TEST_PROPERTY, function(err, atom) {
+            should.not.exist(err);
+            var raw = new Buffer(new Array(8));
+            raw.writeUInt32LE(self.wid, 0);
+            raw.writeUInt32LE(self.wid_helper, 4);
+            self.X.ChangeProperty(0, self.wid, atom, self.X.atoms.ATOM, 32, raw);
+            self.X.GetProperty(0, self.wid, atom, self.X.atoms.ATOM, 0, 1000000000, function(err, prop) {
+                should.not.exist(err);
+                prop.data.readUInt32LE(0).should.equal(self.wid);
+                prop.data.readUInt32LE(4).should.equal(self.wid_helper);
+                done();
+            });
+        });
+    });
+
+    it('should replace a the WINDOW property with length 0', function(done) {
+        var self = this;
+        this.X.InternAtom(false, TEST_PROPERTY, function(err, atom) {
+            should.not.exist(err);
+            var raw = new Buffer(0);
+            self.X.ChangeProperty(0, self.wid, atom, self.X.atoms.WINDOW, 32, raw);
+            self.X.GetProperty(0, self.wid, atom, self.X.atoms.WINDOW, 0, 1000000000, function(err, prop) {
+                should.not.exist(err);
+                prop.data.length.should.equal(0);
+                done();
+            });
+        });
+    });
+
+    after(function(done) {
+        this.X.DestroyWindow(this.wid);
+        this.X.terminate();
+        this.X.on('end', done);
+    });
+});
+