1 files changed, 123 insertions, 0 deletions
diff --git a/browser/components/shell/test/unit/test_421977.js b/browser/components/shell/test/unit/test_421977.js
new file mode 100644
index 000000000..637db4b91
--- /dev/null
+++ b/browser/components/shell/test/unit/test_421977.js
@@ -0,0 +1,123 @@
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cr = Components.results;
+
+const GCONF_BG_COLOR_KEY = "/desktop/gnome/background/primary_color";
+
+var gShell;
+var gGConf;
+
+/**
+ * Converts from a rgb numerical color valule (r << 16 | g << 8 | b)
+ * into a hex string in #RRGGBB format.
+ */
+function colorToHex(aColor) {
+  const rMask = 4294901760;
+  const gMask = 65280;
+  const bMask = 255;
+
+  var r = (aColor & rMask) >> 16;
+  var g = (aColor & gMask) >> 8;
+  var b = (aColor & bMask);
+
+  return "#" + [r, g, b].map(aInt =>
+                              aInt.toString(16).replace(/^(.)$/, "0$1"))
+                             .join("").toUpperCase();
+}
+
+/**
+ * Converts a color string in #RRGGBB format to a rgb numerical color value
+ *  (r << 16 | g << 8 | b).
+ */
+function hexToColor(aString) {
+  return parseInt(aString.substring(1, 3), 16) << 16 |
+         parseInt(aString.substring(3, 5), 16) << 8 |
+         parseInt(aString.substring(5, 7), 16);
+}
+
+/**
+ * Checks that setting the GConf background key to aGConfColor will
+ * result in the Shell component returning a background color equals
+ * to aExpectedShellColor in #RRGGBB format.
+ */
+function checkGConfToShellColor(aGConfColor, aExpectedShellColor) {
+
+  gGConf.setString(GCONF_BG_COLOR_KEY, aGConfColor);
+  var shellColor = colorToHex(gShell.desktopBackgroundColor);
+
+  do_check_eq(shellColor, aExpectedShellColor);
+}
+
+/**
+ * Checks that setting the background color (in #RRGGBB format) using the Shell
+ * component will result in having a GConf key for the background color set to
+ * aExpectedGConfColor.
+ */
+function checkShellToGConfColor(aShellColor, aExpectedGConfColor) {
+
+  gShell.desktopBackgroundColor = hexToColor(aShellColor);
+  var gconfColor = gGConf.getString(GCONF_BG_COLOR_KEY);
+
+  do_check_eq(gconfColor, aExpectedGConfColor);
+}
+
+function run_test() {
+
+  // This test is Linux specific for now
+  if (!("@mozilla.org/gnome-gconf-service;1" in Cc))
+    return;
+
+  try {
+    // If GSettings is available, then the GConf tests
+    // will fail
+    Cc["@mozilla.org/gsettings-service;1"].
+      getService(Ci.nsIGSettingsService).
+      getCollectionForSchema("org.gnome.desktop.background");
+    return;
+  } catch (e) { }
+
+  gGConf = Cc["@mozilla.org/gnome-gconf-service;1"].
+           getService(Ci.nsIGConfService);
+
+  gShell = Cc["@mozilla.org/browser/shell-service;1"].
+           getService(Ci.nsIShellService);
+
+  // Save the original background color so that we can restore it
+  // after the test.
+  var origGConfColor = gGConf.getString(GCONF_BG_COLOR_KEY);
+
+  try {
+
+    checkGConfToShellColor("#000", "#000000");
+    checkGConfToShellColor("#00f", "#0000FF");
+    checkGConfToShellColor("#b2f", "#BB22FF");
+    checkGConfToShellColor("#fff", "#FFFFFF");
+
+    checkGConfToShellColor("#000000", "#000000");
+    checkGConfToShellColor("#0000ff", "#0000FF");
+    checkGConfToShellColor("#b002f0", "#B002F0");
+    checkGConfToShellColor("#ffffff", "#FFFFFF");
+
+    checkGConfToShellColor("#000000000", "#000000");
+    checkGConfToShellColor("#00f00f00f", "#000000");
+    checkGConfToShellColor("#aaabbbccc", "#AABBCC");
+    checkGConfToShellColor("#fffffffff", "#FFFFFF");
+
+    checkGConfToShellColor("#000000000000", "#000000");
+    checkGConfToShellColor("#000f000f000f", "#000000");
+    checkGConfToShellColor("#00ff00ff00ff", "#000000");
+    checkGConfToShellColor("#aaaabbbbcccc", "#AABBCC");
+    checkGConfToShellColor("#111122223333", "#112233");
+    checkGConfToShellColor("#ffffffffffff", "#FFFFFF");
+
+    checkShellToGConfColor("#000000", "#000000000000");
+    checkShellToGConfColor("#0000FF", "#00000000ffff");
+    checkShellToGConfColor("#FFFFFF", "#ffffffffffff");
+    checkShellToGConfColor("#0A0B0C", "#0a0a0b0b0c0c");
+    checkShellToGConfColor("#A0B0C0", "#a0a0b0b0c0c0");
+    checkShellToGConfColor("#AABBCC", "#aaaabbbbcccc");
+
+  } finally {
+    gGConf.setString(GCONF_BG_COLOR_KEY, origGConfColor);
+  }
+}