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-rw-r--r--spec/util_async_spec.lua10
1 files changed, 10 insertions, 0 deletions
diff --git a/spec/util_async_spec.lua b/spec/util_async_spec.lua
index ac71e755..f7e469c9 100644
--- a/spec/util_async_spec.lua
+++ b/spec/util_async_spec.lua
@@ -593,4 +593,14 @@ describe("util.async", function()
assert.spy(r.watchers.error).was_not.called();
end);
end);
+
+ describe("#once()", function ()
+ it("should work", function ()
+ local f = spy.new(function ()
+ assert.truthy(async.ready());
+ end);
+ async.once(f);
+ assert.spy(f).was.called();
+ end);
+ end);
end);