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return describe("close attribute", function()
it("should declare close variable", function()
local closed = false
do
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
end
return assert.is_true(closed)
end)
it("should work with metatable syntax", function()
local called = false
do
local _ <close> = setmetatable({ }, {
__close = function()
called = true
end
})
end
return assert.is_true(called)
end)
it("should handle multiple close scopes", function()
local order = { }
do
local first <close> = setmetatable({ }, {
__close = function()
return table.insert(order, "first")
end
})
local second <close> = setmetatable({ }, {
__close = function()
return table.insert(order, "second")
end
})
end
return assert.same(order, {
"second",
"first"
})
end)
it("should work with resources", function()
local resource_opened = false
local resource_closed = false
do
resource_opened = true
local _ <close> = setmetatable({ }, {
__close = function()
resource_closed = true
end
})
end
assert.is_true(resource_opened)
return assert.is_true(resource_closed)
end)
it("should support close in function", function()
local closed = false
local fn
fn = function()
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
return "result"
end
local result = fn()
assert.same(result, "result")
return assert.is_true(closed)
end)
it("should work with fat arrow", function()
local closed = false
local obj = setmetatable({
value = 10,
}, {
__close = function(self)
closed = true
end
})
do
local _ <close> = obj
end
return assert.is_true(closed)
end)
it("should handle nested close scopes", function()
local outer_closed = false
local inner_closed = false
do
local outer <close> = setmetatable({ }, {
__close = function()
outer_closed = true
end
})
do
local inner <close> = setmetatable({ }, {
__close = function()
inner_closed = true
end
})
end
end
assert.is_true(inner_closed)
return assert.is_true(outer_closed)
end)
it("should work with conditional close", function()
local closed = false
local should_close = true
if should_close then
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
end
return assert.is_true(closed)
end)
it("should support close in loop", function()
local closed_count = 0
for i = 1, 3 do
do
local _ <close> = setmetatable({ }, {
__close = function()
closed_count = closed_count + 1
end
})
end
end
return assert.same(closed_count, 3)
end)
it("should work with table destructuring", function()
local closed = false
do
local tb <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
end
return assert.is_true(closed)
end)
it("should handle close with return value", function()
local closed = false
local fn
fn = function()
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
return 42
end
local result = fn()
assert.same(result, 42)
return assert.is_true(closed)
end)
it("should work with error handling", function()
local closed = false
local error_thrown = false
do
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
error_thrown = true
end
assert.is_true(closed)
return assert.is_true(error_thrown)
end)
it("should support close in varargs function", function()
local closed = false
local fn
fn = function(...)
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
return {
...
}
end
local result = fn(1, 2, 3)
assert.same(result, {
1,
2,
3
})
return assert.is_true(closed)
end)
it("should work with multiple variables", function()
local first_closed = false
local second_closed = false
do
local first <close> = setmetatable({ }, {
__close = function()
first_closed = true
end
})
local second <close> = setmetatable({ }, {
__close = function()
second_closed = true
end
})
end
assert.is_true(first_closed)
return assert.is_true(second_closed)
end)
return it("should handle close in try block", function()
local closed = false
local success = false
success = xpcall(function()
local _ <close> = setmetatable({ }, {
__close = function()
closed = true
end
})
return true
end, function(err)
return false
end)
assert.is_true(success)
return assert.is_true(closed)
end)
end)
|
