Module:Math/testcases
-- Unit tests for Module:Math/sandbox. Click talk page to run tests.
local moduleName = 'Math/sandbox' -- assigning this to a variable as it is later used to generate an #invoke statement.
local mm = require('Module:' .. moduleName)
local ScribuntoUnit = require('Module:ScribuntoUnit')
local suite = ScribuntoUnit:new()
-------------------------------------------------------------------------------
-- Helper functions
-------------------------------------------------------------------------------
function suite.err(msg)
return mw.ustring.format('Formatting error: %s', msg)
end
function suite.getLuaResult(funcName, args)
args = args or {}
local result = mm['_' .. funcName](unpack(args))
return result
end
function suite:assertLuaEquals(expected, funcName, args)
args = args or {}
self:assertEquals(expected, self.getLuaResult(funcName, args))
end
function suite.buildInvocation(funcName, args)
args = args or {}
local argsClone = mw.clone(args)
-- Build a module invocation equivalent to the args table. Taken from Module:Unsubst.
-- Numbered args first.
local ret = '{{#invoke:' .. moduleName .. '|' .. funcName
for k, v in ipairs(argsClone) do
v = tostring(v)
if string.find(v, '=', 1, true) then
-- likely something like 1=foo=bar, we need to do it as a named arg
break
end
ret = ret .. '|' .. v
argsClone[k] = nil
end
for k, v in pairs(argsClone) do
k = tostring(k)
v = tostring(v)
ret = ret .. '|' .. k .. '=' .. v
end
return ret .. '}}'
end
function suite:getInvokeResult(funcName, args, convertNumber) -- Unless convertNumber is false, the number is converted to a number, if possible, on re-entry to Lua.
args = args or {}
local invocation = self.buildInvocation(funcName, args)
local result = self.frame:preprocess(invocation)
if convertNumber ~= false and tonumber(result) then
return tonumber(result)
else
return result
end
end
function suite:assertInvokeEquals(expected, funcName, args, convertNumber)
args = args or {}
local invokeResult = self:getInvokeResult(funcName, args, convertNumber)
self:assertEquals(expected, invokeResult)
end
function suite:assertLuaAndInvokeTrue(trueFunc, funcName, args, convertNumber)
args = args or {}
local invokeResult = self:getInvokeResult(funcName, args, convertNumber)
local luaResult = self.getLuaResult(funcName, args)
self:assertTrue(trueFunc(invokeResult))
self:assertTrue(trueFunc(luaResult))
end
function suite:assertLuaAndInvokeEqual(funcName, testTable, convertNumber)
local expected = testTable[1]
local args = testTable[2] or {}
self:assertLuaEquals(expected, funcName, args)
self:assertInvokeEquals(expected, funcName, args, convertNumber)
end
function suite:assertLuaAndInvokeEqualMany(funcName, testTables, convertNumber)
for i, testTable in ipairs(testTables) do
self:assertLuaAndInvokeEqual(funcName, testTable, convertNumber)
end
end
-------------------------------------------------------------------------------
-- Test random
-------------------------------------------------------------------------------
function suite:test_random()
self:assertLuaAndInvokeTrue(function (n) return n >= 0 and n < 1 end, 'random')
self:assertLuaAndInvokeTrue(function (n) return n == 1 or n == 2 end, 'random', {2})
self:assertLuaAndInvokeTrue(function (n) return n >= 1 and n <= 10 and math.floor(n) == n end, 'random', {10})
self:assertLuaAndInvokeTrue(function (n) return n >= 10 and n <= 20 and math.floor(n) == n end, 'random', {10, 20})
end
-------------------------------------------------------------------------------
-- Test max
-------------------------------------------------------------------------------
function suite:test_max()
local tests = {
{9, {5, 6, 9}},
{-5, {-5, -6, -9}},
}
self:assertLuaAndInvokeEqualMany('max', tests)
self:assertLuaEquals(nil, 'max', {})
self:assertInvokeEquals('', 'max', {})
end
-------------------------------------------------------------------------------
-- Test average
-------------------------------------------------------------------------------
function suite:test_average()
local tests = {
{6, {5, 6, 7}},
{-7, {-7}},
{10000000002, {10000000001, 10000000002, 10000000003}},
}
self:assertLuaAndInvokeEqualMany('average', tests)
end
-------------------------------------------------------------------------------
-- Test min
-------------------------------------------------------------------------------
function suite:test_min()
local tests = {
{1, {1, 2, 3}},
{-3, {-1, -2, -3}},
}
self:assertLuaAndInvokeEqualMany('min', tests)
self:assertLuaEquals(nil, 'min', {})
self:assertInvokeEquals('', 'min', {})
end
-------------------------------------------------------------------------------
-- Test gcd
-------------------------------------------------------------------------------
function suite:test_gcd()
local tests = {
{4, {12, 8}},
{2, {12, 8, 6}},
{4, {-12, -8}},
{2, {-12, -8, -6}},
{8, {0, 8}},
{8, {0, -8}},
{0, {0}},
{0, {0, 0}},
{4, {12, nil, 8}},
}
self:assertLuaAndInvokeEqualMany('gcd', tests)
end
-------------------------------------------------------------------------------
-- Test order
-------------------------------------------------------------------------------
function suite:test_order()
local tests = {
{0, {2}},
{1, {20}},
{2, {200}},
{0, {5}},
}
self:assertLuaAndInvokeEqualMany('order', tests)
self:assertInvokeEquals(suite.err('order of magnitude input appears non-numeric'), 'order', {'string'})
self:assertInvokeEquals(0, 'order', {x = 5})
end
-------------------------------------------------------------------------------
-- Test precision
-------------------------------------------------------------------------------
function suite:test_precison()
local tests = {
{4, {1.9856}},
{1, {1.1}},
{10, {1.9999999999}},
{9, {0.000020004}},
}
self:assertLuaAndInvokeEqualMany('precision', tests)
self:assertInvokeEquals(suite.err('precision input appears non-numeric'), 'precision', {'letra'})
self:assertInvokeEquals(4, 'precision', {x = '1.9888'})
end
-------------------------------------------------------------------------------
-- Test round
-------------------------------------------------------------------------------
function suite:test_round()
local tests = {
{2, {1.99999}},
{2, {1.99999, 0}},
{1.9, {1.94, 1}},
{20, {15, -1}},
{2.0004e-05, {0.000020004}}, -- broken and returns 0 due to limit of order -5 of phps floating number
{2.0004e-05, {0.000020004, mm._precision(0.000020004)}}, -- works
}
self:assertLuaAndInvokeEqualMany('round', tests)
self:assertInvokeEquals(3, 'round', {value = '2.99999', precision = '2'})
end
-------------------------------------------------------------------------------
-- Test mod
-------------------------------------------------------------------------------
function suite:test_mod()
local tests = {
{0, {10, 2}},
{1, {11, 2}},
{0, {525000000000000120000000000, 3}}, -- With the plain % operator this returns 68719476736 due to floating point error.
}
self:assertLuaAndInvokeEqualMany('mod', tests)
self:assertInvokeEquals(suite.err('first argument to mod appears non-numeric'), 'mod', {})
self:assertInvokeEquals(suite.err('second argument to mod appears non-numeric'), 'mod', {1})
local successNoArgs = pcall(mm._mod)
self:assertFalse(successNoArgs)
local successOneArg = pcall(mm._mod, 1)
self:assertFalse(successOneArg)
end
-------------------------------------------------------------------------------
-- Test precision format
-------------------------------------------------------------------------------
function suite:test_precison_format()
local tests = {
{'10.00', {10, 2}},
{'2.00×10−5', {0.000020004, 7}}
}
self:assertLuaAndInvokeEqualMany('precision_format', tests, false) -- the "false" stops string values being converted to numbers on re-entry from #invoke.
end
-------------------------------------------------------------------------------
-- Test cleanNumber
-------------------------------------------------------------------------------
function suite:assertCleanNumberEquals(expectedTable, inputString)
local expectedNum, expectedNumString = expectedTable[1], expectedTable[2]
local actualNum, actualNumString = mm._cleanNumber(inputString)
self:assertEquals(expectedNum, actualNum)
self:assertEquals(expectedNumString, actualNumString)
end
function suite:test_cleanNumber()
self:assertCleanNumberEquals({0, '0'}, '0')
self:assertCleanNumberEquals({1, '1'}, 1)
self:assertCleanNumberEquals({2, '2'}, ' 2 ')
self:assertCleanNumberEquals({3, '3'}, '4-1')
self:assertCleanNumberEquals({4, '4'}, '2 + 2')
self:assertCleanNumberEquals({5, '5'}, ' 2 + 3 ')
self:assertCleanNumberEquals({6, '6'}, '+6')
self:assertCleanNumberEquals({-7, '-7'}, '-7')
self:assertCleanNumberEquals({88, '88'}, '0x58')
self:assertCleanNumberEquals({1000000000, '1e+9'}, '1e+9')
self:assertCleanNumberEquals({-88, '-88'}, '-0x58')
self:assertCleanNumberEquals({0.16667, '0.16667'}, '1/6 round 5')
self:assertCleanNumberEquals({nil, nil}, '1 foo 2') -- invalid expression
self:assertCleanNumberEquals({nil, nil}, '1+') -- missing expr operand
self:assertCleanNumberEquals({nil, nil}, '')
self:assertCleanNumberEquals({nil, nil}, ' ')
self:assertCleanNumberEquals({nil, nil}, 'string')
self:assertCleanNumberEquals({nil, nil}, ' string with padding ')
end
-------------------------------------------------------------------------------
-- Test divide
-------------------------------------------------------------------------------
function suite:test_divide()
self:assertInvokeEquals('1','divide',{1, 2, round = 'yes'}, false)
self:assertInvokeEquals('0.5','divide',{1, 2, round = 'no'}, false)
self:assertInvokeEquals('0','divide',{1, 3, round = 'yes', precision=2}, false)
self:assertInvokeEquals('0.33','divide',{1, 3, precision=2}, false)
self:assertInvokeEquals(suite.err('Empty dividend'),'divide',{'',2},false)
self:assertInvokeEquals(suite.err('Empty divisor'),'divide',{1,''},false)
self:assertInvokeEquals(suite.err('Empty divisor'),'divide',{},false)
self:assertInvokeEquals(suite.err('Empty divisor'),'divide',{,},false)
self:assertInvokeEquals(suite.err('Not a number: a'),'divide',{'a',2},false)
self:assertInvokeEquals(suite.err('Not a number: b'),'divide',{1,'b'},false)
self:assertInvokeEquals(suite.err('Not a number: b'),'divide',{'a','b'},false)
self:assertInvokeEquals('Bad','divide',{'Bad',2},false)
self:assertInvokeEquals('Bad','divide',{1,'Bad'},false)
self:assertInvokeEquals('Bad2','divide',{'Bad1','Bad2'},false)
end
return suite