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return describe("advanced tables", function()
it("should create table with implicit keys", function()
local hair = "golden"
local height = 200
local person = {
hair = hair,
height = height,
shoe_size = 40
}
assert.same(person.hair, "golden")
return assert.same(person.height, 200)
end)
it("should work with computed keys", function()
local t = {
[1 + 2] = "hello",
["key_" .. "suffix"] = "value"
}
assert.same(t[3], "hello")
return assert.same(t["key_suffix"], "value")
end)
it("should support keyword keys", function()
local tbl = {
["do"] = "something",
["end"] = "hunger",
["function"] = "test"
}
assert.same(tbl["do"], "something")
assert.same(tbl["end"], "hunger")
return assert.same(tbl["function"], "test")
end)
it("should handle array syntax with mixed content", function()
local tb = {
1,
2,
3,
name = "superman",
4,
5,
6
}
assert.same(tb[1], 1)
assert.same(tb.name, "superman")
return assert.same(tb[4], 4)
end)
it("should work with single line table literals", function()
local tb = {
dance = "Tango",
partner = "none"
}
assert.same(tb.dance, "Tango")
return assert.same(tb.partner, "none")
end)
it("should support nested tables", function()
local tb = {
outer = {
inner = {
value = 42
}
}
}
return assert.same(tb.outer.inner.value, 42)
end)
it("should handle table without braces", function()
local profile = {
height = "4 feet",
shoe_size = 13,
favorite_foods = {
"ice cream",
"donuts"
}
}
assert.same(profile.height, "4 feet")
return assert.same(profile.shoe_size, 13)
end)
it("should work with colon syntax for keys", function()
local t = {
name = "Bill",
age = 200,
["favorite food"] = "rice"
}
assert.same(t.name, "Bill")
return assert.same(t["favorite food"], "rice")
end)
it("should support implicit object in table", function()
local tb = {
name = "abc",
values = {
"a",
"b",
"c"
}
}
return assert.same(tb.values, {
"a",
"b",
"c"
})
end)
it("should handle array only table", function()
local some_values = {
1,
2,
3,
4
}
assert.same(some_values[1], 1)
return assert.same(some_values[4], 4)
end)
it("should work with trailing comma", function()
local list_with_one = {
1
}
return assert.same(list_with_one[1], 1)
end)
it("should support table spreading", function()
local a = {
1,
2,
3,
x = 1
}
local b = {
4,
5,
y = 1
}
local merge
do
local _tab_0 = { }
local _idx_0 = 1
for _key_0, _value_0 in pairs(a) do
if _idx_0 == _key_0 then
_tab_0[#_tab_0 + 1] = _value_0
_idx_0 = _idx_0 + 1
else
_tab_0[_key_0] = _value_0
end
end
local _idx_1 = 1
for _key_0, _value_0 in pairs(b) do
if _idx_1 == _key_0 then
_tab_0[#_tab_0 + 1] = _value_0
_idx_1 = _idx_1 + 1
else
_tab_0[_key_0] = _value_0
end
end
merge = _tab_0
end
assert.same(merge[1], 1)
assert.same(merge[4], 4)
assert.same(merge.x, 1)
return assert.same(merge.y, 1)
end)
it("should handle mixed spread", function()
local parts = {
"shoulders",
"knees"
}
local lyrics
do
local _tab_0 = {
"head"
}
local _idx_0 = 1
for _key_0, _value_0 in pairs(parts) do
if _idx_0 == _key_0 then
_tab_0[#_tab_0 + 1] = _value_0
_idx_0 = _idx_0 + 1
else
_tab_0[_key_0] = _value_0
end
end
_tab_0[#_tab_0 + 1] = "and"
_tab_0[#_tab_0 + 1] = "toes"
lyrics = _tab_0
end
return assert.same(lyrics, {
"head",
"shoulders",
"knees",
"and",
"toes"
})
end)
it("should work with metatable creation", function()
local mt = { }
local add
add = function(self, right)
return setmetatable({
value = self.value + right.value
}, mt)
end
mt.__add = add
local a = setmetatable({
value = 1
}, mt)
local b = {
value = 2
}
setmetatable(b, mt)
local c = a + b
return assert.same(c.value, 3)
end)
it("should support metatable accessing", function()
local tb = setmetatable({ }, {
["value"] = 123
})
getmetatable(tb).__index = getmetatable(tb)
return assert.same(tb.value, 123)
end)
it("should handle metatable destructuring", function()
local tb = setmetatable({
item = "test",
new = function()
return "created"
end,
}, {
__close = function()
return "closed"
end
})
local item, new = tb.item, tb.new
local close = getmetatable(tb).__close
assert.same(item, "test")
assert.same(new(), "created")
return assert.same(close(), "closed")
end)
it("should work with string keys directly", function()
local t = {
["hello world"] = true,
["test-key"] = "value"
}
assert.is_true(t["hello world"])
return assert.same(t["test-key"], "value")
end)
it("should support number keys", function()
local t = {
[10] = "ten",
[20] = "twenty"
}
assert.same(t[10], "ten")
return assert.same(t[20], "twenty")
end)
it("should handle empty tables", function()
local empty = { }
return assert.same(#empty, 0)
end)
return it("should work with table literals in function calls", function()
local fn
fn = function(tb)
return tb.x + tb.y
end
local result = fn({
x = 10,
y = 20
})
return assert.same(result, 30)
end)
end)
|
