tests: Test client focus stealing filters.

tests/test-awful-client.lua

@@ -77,6 +77,54 @@ end
 end
 }
 
+local original_count, c1, c2 = 0
+
+-- Check request::activate
+table.insert(steps, function()
+    c1, c2 = client.get()[1], client.get()[2]
+
+    -- This should still be the case
+    assert(client.focus == c1)
+
+    c2:emit_signal("request::activate", "i_said_so")
+
+    return true
+end)
+
+-- Check if writing a focus stealing filter works.
+table.insert(steps, function()
+    -- This should still be the case
+    assert(client.focus == c2)
+
+    original_count = #awful.ewmh.generic_activate_filters
+
+    awful.ewmh.add_activate_filter(function(c)
+        if c == c1 then return false end
+    end)
+
+    c1:emit_signal("request::activate", "i_said_so")
+
+    return true
+end)
+
+table.insert(steps, function()
+    -- The request should have been denied
+    assert(client.focus == c2)
+
+    -- Test the remove function
+    awful.ewmh.remove_activate_filter(function() end)
+
+    awful.ewmh.add_activate_filter(awful.ewmh.generic_activate_filters[1])
+
+    awful.ewmh.remove_activate_filter(awful.ewmh.generic_activate_filters[1])
+
+    assert(original_count == #awful.ewmh.generic_activate_filters)
+
+    c1:emit_signal("request::activate", "i_said_so")
+
+    return client.focus == c1
+end)
+
 local has_error
 
 -- Disable awful.screen.preferred(c)