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--[[--------------------------------------------------------------------
test_lparser2.lua
Test for lparser.lua, using the test case file
This file is part of Yueliang.
Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
The COPYRIGHT file describes the conditions
under which this software may be distributed.
See the ChangeLog for more information.
----------------------------------------------------------------------]]
--[[--------------------------------------------------------------------
-- Notes:
-- * the test cases are in the test_lua directory (test_parser-5.0.lua)
----------------------------------------------------------------------]]
-- * true if you want an output of all failure cases in native Lua,
-- for checking whether test cases fail where you intend them to
local DEBUG_FAILS = false
------------------------------------------------------------------------
-- test the whole kaboodle
------------------------------------------------------------------------
require("../lzio")
require("../llex")
require("../lopcodes")
require("../ldump")
require("../lcode")
require("../lparser")
function lua_assert(test)
if not test then error("assertion failed!") end
end
luaX:init()
------------------------------------------------------------------------
-- load test cases
------------------------------------------------------------------------
require("../../test_lua/test_parser-5.0")
local test, expect, heading = {}, {}, {}
local total, total_pass, total_fail = 0, 0, 0
for ln in string.gfind(tests_source, "([^\n]*)\n") do
if string.find(ln, "^%s*%-%-") then
-- comment, ignore
else
local m, _, head = string.find(ln, "^%s*(TESTS:%s*.*)$")
if m then
heading[total + 1] = head -- informational heading
else
total = total + 1
local n, _, flag = string.find(ln, "%s*%-%-%s*FAIL%s*$")
if n then -- FAIL test case
ln = string.sub(ln, 1, n - 1) -- remove comment
expect[total] = "FAIL"
total_fail = total_fail + 1
else -- PASS test case
expect[total] = "PASS"
total_pass = total_pass + 1
end--n
test[total] = ln
end--m
end--ln
end--for
print("Tests loaded: "..total.." (total), "
..total_pass.." (passes), "
..total_fail.." (fails)")
------------------------------------------------------------------------
-- verify test cases using native Lua
------------------------------------------------------------------------
local last_head = "TESTS: no heading yet"
for i = 1, total do
local test_case, expected, head = test[i], expect[i], heading[i]
-- show progress
if head then
last_head = head
if DEBUG_FAILS then print("\n"..head.."\n") end
end
------------------------------------------------------------------
-- perform test
local f, err = loadstring(test_case)
-- look at outcome
------------------------------------------------------------------
if f then-- actual PASS
if expected == "FAIL" then
print("\nVerified as PASS but expected to FAIL"..
"\n-------------------------------------")
print("Lastest heading: "..last_head)
print("TEST: "..test_case)
os.exit()
end
------------------------------------------------------------------
else-- actual FAIL
if expected == "PASS" then
print("\nVerified as FAIL but expected to PASS"..
"\n-------------------------------------")
print("Lastest heading: "..last_head)
print("TEST: "..test_case)
print("ERROR: "..err)
os.exit()
end
if DEBUG_FAILS then
print("TEST: "..test_case)
print("ERROR: "..err.."\n")
end
------------------------------------------------------------------
end--f
end--for
print("Test cases verified using native Lua, no anomalies.")
------------------------------------------------------------------------
-- dump binary chunks to a file if something goes wrong
------------------------------------------------------------------------
local function Dump(data, filename)
h = io.open(filename, "wb")
if not h then error("failed to open "..filename.." for writing") end
h:write(data)
h:close()
end
------------------------------------------------------------------------
-- test using Yueliang front end
------------------------------------------------------------------------
local last_head = "TESTS: no heading yet"
for i = 1, total do
local test_case, expected, head = test[i], expect[i], heading[i]
-- show progress
if head then last_head = head end
------------------------------------------------------------------
-- perform test
local LuaState = {}
local zio = luaZ:init(luaZ:make_getS(test_case), nil, "test")
local status, func = pcall(luaY.parser, luaY, LuaState, zio, nil)
-- look at outcome
------------------------------------------------------------------
if status then-- actual PASS
if expected == "PASS" then
-- actual PASS and expected PASS, so check binary chunks
local writer, buff = luaU:make_setS()
luaU:dump(LuaState, func, writer, buff)
local bc1 = buff.data -- Yueliang's output
local f = loadstring(test_case, "test")
local bc2 = string.dump(f) -- Lua's output
local die
-- compare outputs
if string.len(bc1) ~= string.len(bc2) then
Dump(bc1, "bc1.out")
Dump(bc2, "bc2.out")
die = "binary chunk sizes different"
elseif bc1 ~= bc2 then
Dump(bc1, "bc1.out")
Dump(bc2, "bc2.out")
die = "binary chunks different"
else
-- everything checks out!
end
if die then
print("\nTested PASS and expected to PASS, but chunks different"..
"\n------------------------------------------------------")
print("Reason: "..die)
print("Lastest heading: "..last_head)
print("TEST: "..test_case)
os.exit()
end
else-- expected FAIL
print("\nTested as PASS but expected to FAIL"..
"\n-----------------------------------")
print("Lastest heading: "..last_head)
print("TEST: "..test_case)
os.exit()
end
------------------------------------------------------------------
else-- actual FAIL
if expected == "PASS" then
print("\nTested as FAIL but expected to PASS"..
"\n-----------------------------------")
print("Lastest heading: "..last_head)
print("TEST: "..test_case)
print("ERROR: "..err)
os.exit()
end
------------------------------------------------------------------
end--status
io.stdout:write("\rTesting ["..i.."]...")
end--for
print(" done.")
print("Test cases run on Yueliang, no anomalies.")
-- end
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