190 lines
7.2 KiB
Lua
190 lines
7.2 KiB
Lua
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local SUITE = require 'TestSuite' 'assert-gooder'
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SUITE:setEnvironment {
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assert = require 'assert-gooder'
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}
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--------------------------------------------------------------------------------
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SUITE:addTest('local variable', function ()
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local _, msg = pcall(function ()
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local a = 2
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assert(type(a) == 'string')
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad local \'a\' (string expected, but got number: 2)', msg)
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end)
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SUITE:addTest('upvalue variable', function ()
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local a = 2
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local _, msg = pcall(function ()
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assert(type(a) == 'string')
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad upvalue \'a\' (string expected, but got number: 2)', msg)
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end)
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SUITE:addTest('global variable', function ()
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a = 2
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local _, msg = pcall(function ()
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assert(type(a) == 'string')
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad global \'a\' (string expected, but got number: 2)', msg)
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end)
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SUITE:addTest('argument to anon function', function ()
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local _, msg = pcall(function()
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(function (a)
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assert(type(a) == 'string')
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end)(2)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-3)..': '..'assertion failed! bad argument #1 \'a\' to the anonymous function at ./test/test_assert-gooder.lua:'..curline(-4)..' (string expected, but got number: 2)', msg)
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end)
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SUITE:addTest('argument to named function', function ()
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local f = function (a)
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assert(type(a) == 'string')
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end
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local _, msg = pcall(function () f(2) end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-3)..': '..'assertion failed! bad argument #1 \'a\' to \'f\' (string expected, but got number: 2)', msg)
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end)
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SUITE:addTest('indexing', function ()
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local _, msg = pcall(function ()
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local a = { b = 39 }
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assert(type(a.b) == 'string')
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad key "b" in local \'a\' (string expected, but got number: 39)', msg)
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end)
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SUITE:addTest('subscript constant', function ()
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local _, msg = pcall(function ()
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local a = { 4, 2, 3, 6 }
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assert(type(a.b) == 'string')
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad key 2 in local \'a\' (string expected, but got number: 2)', msg)
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end)
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SUITE:addTest('subscript variable', function ()
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local _, msg = pcall(function ()
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local a, i = { 4, 2, 3, 6 }, 2
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assert(type(a.b) == 'string')
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad key 2 in local \'a\' (string expected, but got number: 2)', msg)
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end)
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--------------------------------------------------------------------------------
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SUITE:addTest('can improve asserts in loaded strings too', function ()
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local func = loadstring "return function(a) assert(type(a) == 'string') end" ()
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local _, msg = pcall(setfenv(func, getfenv()), 42)
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assert_equal('[string "return function(a) assert(type(a) == \'string\'..."]:1: '..'assertion failed! bad argument #1 \'a\' to the anonymous function from loaded string (string expected, but got number: 42)', msg)
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end)
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SUITE:addTest('really complicated expression', function ()
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local f = function ()
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assert(a == 3 and math.floor(2.522) == 2 or 5 == n)
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end
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local _, msg = pcall(f, 2)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-3)..': '..'assertion failed! expression `a == 3 and math.floor(2.522) == 2 or 5 == n` evaluated to false', msg)
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end)
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--------------------------------------------------------------------------------
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-- Other assert types
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SUITE:addTest('compare values', function ()
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local _, msg = pcall(function ()
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local a = 2
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assert(a == 4)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad local \'a\' (number 4 expected, but got: 2)', msg)
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end)
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SUITE:addTest('compare values across types', function ()
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local _, msg = pcall(function ()
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local a = "hi"
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assert(a == 4)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad local \'a\' (number 4 expected, but got string: "hi")', msg)
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end)
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SUITE:addTest('is nil', function ()
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local _, msg = pcall(function ()
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local a = "hi"
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assert(a == nil)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad local \'a\' (nil expected, but got string: "hi")', msg)
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end)
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SUITE:addTest('truthy', function ()
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local _, msg = pcall(function ()
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local a = false
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assert(a)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad local \'a\' (truthy expected, but got false)', msg)
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end)
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SUITE:addTest('truthy indexing', function ()
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local _, msg = pcall(function ()
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local a = { b = false }
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assert(a.b)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad key "b" in local \'a\' (truthy expected, but got false)', msg)
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end)
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SUITE:addTest('truthy subscript', function ()
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local _, msg = pcall(function ()
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local a = {}
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assert(a[6])
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad key 6 in local \'a\' (truthy expected, but got nil)', msg)
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end)
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SUITE:addTest('truthy variable subscript', function ()
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local _, msg = pcall(function ()
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local a, i = {}, 3
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assert(a[i])
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad key 3 in local \'a\' (truthy expected, but got nil)', msg)
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end)
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SUITE:addTest('not equal', function (constant_value, msg_in_pars)
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local func = loadstring (("return function() local a = %s; assert(a ~= %s) end"):format(constant_value, constant_value)) ()
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local _, msg = pcall(setfenv(func, getfenv()))
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assert_equal('[string "return function() ..."]:1: assertion failed! bad local \'a\' ('..msg_in_pars..')', msg)
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end, { data = {
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{ 'true' , 'expected anything other than true, but got true' },
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{ 'nil', 'expected anything other than nil, but got nil' },
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{ '"hi"', 'expected anything other than string "hi", but got "hi"' },
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{ '42', 'expected anything other than number 42, but got 42' },
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}})
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SUITE:addTest('constant false', function ()
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local function f ()
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assert(false)
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end
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local _, msg = pcall(function() f() end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-3)..': '..'assertion failed! this assert will always fail, as it\'s body is `false`. assumingly this should be an unreachable part of \'f\'', msg)
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end)
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SUITE:addTest('constant nil', function ()
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local _, msg = pcall(function ()
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assert(nil)
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end)
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! this assert will always fail, as it\'s body is `nil`. assumingly this should be an unreachable part of the anonymous function at ./test/test_assert-gooder.lua:'..curline(-3), msg)
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end)
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SUITE:addTest('function as type argument', function ()
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local _, msg = pcall(function ()
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local f = function() end
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assert(type(f) == 'string')
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end)
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-- TODO: How do we test this?
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assert_equal('./test/test_assert-gooder.lua:'..curline(-2)..': '..'assertion failed! bad local \'f\' (string expected, but got function)', msg)
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end)
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--------------------------------------------------------------------------------
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return SUITE
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