From 5ea93cd18611d859867bdd80c44c886d29a7b958 Mon Sep 17 00:00:00 2001
From: Stephen Blott
Date: Sat, 19 Apr 2014 10:02:14 +0100
Subject: Add remote sync test for setting cleared.

---
 tests/unit_tests/settings_test.coffee     | 9 +++++++++
 tests/unit_tests/test_chrome_stubs.coffee | 9 +++++++++
 2 files changed, 18 insertions(+)

(limited to 'tests/unit_tests')

diff --git a/tests/unit_tests/settings_test.coffee b/tests/unit_tests/settings_test.coffee
index 07b96a30..9aec95dd 100644
--- a/tests/unit_tests/settings_test.coffee
+++ b/tests/unit_tests/settings_test.coffee
@@ -64,3 +64,12 @@ context "settings",
     # Pull Sync's version of scrollStepSize, this should delete scrollStepSize in localStorage, because it's a default value.
     Sync.pull()
     assert.isFalse Settings.has 'scrollStepSize'
+
+  should "remote setting cleared", ->
+    # Prime localStorage.
+    Settings.set 'scrollStepSize', 20
+    assert.equal Settings.get('scrollStepSize'), 20
+    # Prime Sync with a non-default value.
+    chrome.storage.sync.set { scrollStepSize: JSON.stringify(40) }
+    chrome.storage.sync.remove 'scrollStepSize'
+    assert.isFalse Settings.has 'scrollStepSize'
diff --git a/tests/unit_tests/test_chrome_stubs.coffee b/tests/unit_tests/test_chrome_stubs.coffee
index f32de24f..dd8dccf8 100644
--- a/tests/unit_tests/test_chrome_stubs.coffee
+++ b/tests/unit_tests/test_chrome_stubs.coffee
@@ -16,6 +16,13 @@ global.chrome.storage.onChanged ||=
     if @func
       @func( @mkKeyValue(key,value), 'synced storage stub' )
 
+  callEmpty: (key) ->
+    chrome.runtime = { lastError: undefined }
+    if @func
+      items = {}
+      items[key] = {}
+      @func( items, 'synced storage stub' )
+
   mkKeyValue: (key, value) ->
     obj = {}
     obj[key] = { newValue: value }
@@ -53,4 +60,6 @@ global.chrome.storage.sync ||=
       delete @store[key]
     if callback
       callback()
+    # Now, generate (supposedly asynchronous) notification for listeners.
+    global.chrome.storage.onChanged.callEmpty(key)
 
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