1 files changed, 64 insertions, 0 deletions
diff --git a/browser/components/syncedtabs/test/xpcshell/test_SyncedTabsDeckStore.js b/browser/components/syncedtabs/test/xpcshell/test_SyncedTabsDeckStore.js
new file mode 100644
index 000000000..69abb4024
--- /dev/null
+++ b/browser/components/syncedtabs/test/xpcshell/test_SyncedTabsDeckStore.js
@@ -0,0 +1,64 @@
+"use strict";
+
+let { SyncedTabsDeckStore } = Cu.import("resource:///modules/syncedtabs/SyncedTabsDeckStore.js", {});
+
+add_task(function* testSelectUnkownPanel() {
+  let deckStore = new SyncedTabsDeckStore();
+  let spy = sinon.spy();
+
+  deckStore.on("change", spy);
+  deckStore.selectPanel("foo");
+
+  Assert.ok(!spy.called);
+});
+
+add_task(function* testSetPanels() {
+  let deckStore = new SyncedTabsDeckStore();
+  let spy = sinon.spy();
+
+  deckStore.on("change", spy);
+  deckStore.setPanels(["panel1", "panel2"]);
+
+  Assert.ok(spy.calledWith({
+    panels: [
+      { id: "panel1", selected: false },
+      { id: "panel2", selected: false },
+    ],
+    isUpdatable: false
+  }));
+});
+
+add_task(function* testSelectPanel() {
+  let deckStore = new SyncedTabsDeckStore();
+  let spy = sinon.spy();
+
+  deckStore.setPanels(["panel1", "panel2"]);
+
+  deckStore.on("change", spy);
+  deckStore.selectPanel("panel2");
+
+  Assert.ok(spy.calledWith({
+    panels: [
+      { id: "panel1", selected: false },
+      { id: "panel2", selected: true },
+    ],
+    isUpdatable: true
+  }));
+
+  deckStore.selectPanel("panel2");
+  Assert.ok(spy.calledOnce, "doesn't trigger unless panel changes");
+});
+
+add_task(function* testSetPanelsSameArray() {
+  let deckStore = new SyncedTabsDeckStore();
+  let spy = sinon.spy();
+  deckStore.on("change", spy);
+
+  let panels = ["panel1", "panel2"];
+
+  deckStore.setPanels(panels);
+  deckStore.setPanels(panels);
+
+  Assert.ok(spy.calledOnce, "doesn't trigger unless set of panels changes");
+});
+