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Add default value to Spy constructor argument #156

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merged 2 commits into from Dec 13, 2018
Merged

Add default value to Spy constructor argument #156

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8b3a710
Add default value to Spy constructor argument
JeroenDeDauw Oct 16, 2018
231ad4e
Add test for default spy constructor argument
JeroenDeDauw Oct 27, 2018
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6 changes: 6 additions & 0 deletions spec/spies_spec.lua
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Expand Up @@ -217,4 +217,10 @@ describe("Tests dealing with spies", function()
assert.spy(s).was_not.returned_with("foobar")
end)

it("checks spy.new can be constructed without arguments", function()
local s = spy.new()
s()
assert.spy(s).was.called(1)
end)

end)
1 change: 1 addition & 0 deletions src/spy.lua
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Expand Up @@ -21,6 +21,7 @@ local spy_mt = {
local spy -- must make local before defining table, because table contents refers to the table (recursion)
spy = {
new = function(callback)
callback = callback or function() end
if not util.callable(callback) then
error("Cannot spy on type '" .. type(callback) .. "', only on functions or callable elements", util.errorlevel())
end
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