See Module:Dump on Wikipedia for documentation.
testcase = { -- table_1
"one",
"two",
= "negative one",
= "one half",
= "ninety nine",
= "one hundred",
= "space",
= "unicode",
alpha = "aaa",
beta = "bbb",
c = 123,
data = { -- table_2
__metatable = {
__index = function_1,
__tostring = function_2,
},
"three",
"four",
= "F",
= "T",
function_3 = "dumper",
F = false,
T = true,
alpha2 = "aaa2",
beta2 = "bbb2",
c2 = 1234,
data2 = {
"five",
"six",
alpha3 = "aaa3",
beta3 = "bbb3",
c3 = 12345,
fruit = { -- table_5
"apple",
"banana",
= "zero",
back = table_2, -- repeat
table_6 = "anon",
},
me = table_1, -- repeat
table_5 = "fruit",
},
dumper = function_3,
me = table_2, -- self
},
testcase = table_1, -- self
z = "zoo",
}