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Fix Promise.promisify and add test

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This commit is contained in:
Eryn Lynn 2019-09-15 02:50:53 -04:00
parent 8650aeffdb
commit 0139ed512f
2 changed files with 17 additions and 1 deletions
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4
lib/init.lua
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@ -339,7 +339,9 @@ function Promise.promisify(callback)
return function(...)
local length, values = pack(...)
return Promise.new(function(resolve)
resolve(coroutine.wrap(callback)(unpack(values, 1, length)))
coroutine.wrap(function()
resolve(callback(unpack(values, 1, length)))
end)()
end)
end
end

14
lib/init.spec.lua
View file

@ -582,4 +582,18 @@ return function()
expect(promises[2]:getStatus()).to.equal(Promise.Status.Resolved)
end)
end)
describe("Promise.promisify", function()
it("should wrap functions", function()
local function test(n)
return n + 1
end
local promisified = Promise.promisify(test)
local status, result = promisified(1):awaitStatus()
expect(status).to.equal(Promise.Status.Resolved)
expect(result).to.equal(2)
end)
end)
end