awesome/tests/test-client-swap.lua

-- Test if client's c:swap() corrupts the Lua stack

local runner = require("_runner")
local test_client = require("_client")

runner.run_steps({
                 -- Spawn two clients
                 function(count)
                     if count == 1 then
                         test_client()
                         test_client()
                     end
                     if #client.get() >= 2 then
                         return true
                     end
                 end,

                 -- Swap them
                 function()
                     assert(#client.get() == 2, #client.get())
                     local c1 = client.get()[1]
                     local c2 = client.get()[2]

                     c2:swap(c1)
                     c1:swap(c2)
                     c1:swap(c2)
                     c1:swap(c2)
                     c2:swap(c1)
                     return true
                 end,
             })

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