314 lines
7.3 KiB
Lua
314 lines
7.3 KiB
Lua
-- $Id: constructs.lua,v 1.41 2016/11/07 13:11:28 roberto Exp $
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-- See Copyright Notice in file all.lua
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;;print "testing syntax";;
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local debug = require "debug"
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local function checkload (s, msg)
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assert(string.find(select(2, load(s)), msg))
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end
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-- testing semicollons
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do ;;; end
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; do ; a = 3; assert(a == 3) end;
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;
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-- invalid operations should not raise errors when not executed
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if false then a = 3 // 0; a = 0 % 0 end
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-- testing priorities
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assert(2^3^2 == 2^(3^2));
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assert(2^3*4 == (2^3)*4);
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assert(2.0^-2 == 1/4 and -2^- -2 == - - -4);
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assert(not nil and 2 and not(2>3 or 3<2));
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assert(-3-1-5 == 0+0-9);
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assert(-2^2 == -4 and (-2)^2 == 4 and 2*2-3-1 == 0);
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assert(-3%5 == 2 and -3+5 == 2)
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assert(2*1+3/3 == 3 and 1+2 .. 3*1 == "33");
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assert(not(2+1 > 3*1) and "a".."b" > "a");
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assert("7" .. 3 << 1 == 146)
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assert(10 >> 1 .. "9" == 0)
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assert(10 | 1 .. "9" == 27)
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assert(0xF0 | 0xCC ~ 0xAA & 0xFD == 0xF4)
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assert(0xFD & 0xAA ~ 0xCC | 0xF0 == 0xF4)
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assert(0xF0 & 0x0F + 1 == 0x10)
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assert(3^4//2^3//5 == 2)
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assert(-3+4*5//2^3^2//9+4%10/3 == (-3)+(((4*5)//(2^(3^2)))//9)+((4%10)/3))
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assert(not ((true or false) and nil))
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assert( true or false and nil)
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-- old bug
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assert((((1 or false) and true) or false) == true)
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assert((((nil and true) or false) and true) == false)
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local a,b = 1,nil;
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assert(-(1 or 2) == -1 and (1 and 2)+(-1.25 or -4) == 0.75);
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x = ((b or a)+1 == 2 and (10 or a)+1 == 11); assert(x);
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x = (((2<3) or 1) == true and (2<3 and 4) == 4); assert(x);
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x,y=1,2;
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assert((x>y) and x or y == 2);
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x,y=2,1;
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assert((x>y) and x or y == 2);
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assert(1234567890 == tonumber('1234567890') and 1234567890+1 == 1234567891)
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-- silly loops
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repeat until 1; repeat until true;
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while false do end; while nil do end;
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do -- test old bug (first name could not be an `upvalue')
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local a; function f(x) x={a=1}; x={x=1}; x={G=1} end
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end
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function f (i)
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if type(i) ~= 'number' then return i,'jojo'; end;
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if i > 0 then return i, f(i-1); end;
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end
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x = {f(3), f(5), f(10);};
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assert(x[1] == 3 and x[2] == 5 and x[3] == 10 and x[4] == 9 and x[12] == 1);
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assert(x[nil] == nil)
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x = {f'alo', f'xixi', nil};
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assert(x[1] == 'alo' and x[2] == 'xixi' and x[3] == nil);
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x = {f'alo'..'xixi'};
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assert(x[1] == 'aloxixi')
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x = {f{}}
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assert(x[2] == 'jojo' and type(x[1]) == 'table')
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local f = function (i)
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if i < 10 then return 'a';
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elseif i < 20 then return 'b';
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elseif i < 30 then return 'c';
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end;
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end
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assert(f(3) == 'a' and f(12) == 'b' and f(26) == 'c' and f(100) == nil)
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for i=1,1000 do break; end;
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n=100;
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i=3;
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t = {};
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a=nil
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while not a do
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a=0; for i=1,n do for i=i,1,-1 do a=a+1; t[i]=1; end; end;
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end
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assert(a == n*(n+1)/2 and i==3);
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assert(t[1] and t[n] and not t[0] and not t[n+1])
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function f(b)
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local x = 1;
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repeat
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local a;
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if b==1 then local b=1; x=10; break
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elseif b==2 then x=20; break;
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elseif b==3 then x=30;
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else local a,b,c,d=math.sin(1); x=x+1;
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end
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until x>=12;
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return x;
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end;
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assert(f(1) == 10 and f(2) == 20 and f(3) == 30 and f(4)==12)
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local f = function (i)
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if i < 10 then return 'a'
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elseif i < 20 then return 'b'
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elseif i < 30 then return 'c'
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else return 8
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end
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end
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assert(f(3) == 'a' and f(12) == 'b' and f(26) == 'c' and f(100) == 8)
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local a, b = nil, 23
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x = {f(100)*2+3 or a, a or b+2}
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assert(x[1] == 19 and x[2] == 25)
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x = {f=2+3 or a, a = b+2}
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assert(x.f == 5 and x.a == 25)
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a={y=1}
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x = {a.y}
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assert(x[1] == 1)
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function f(i)
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while 1 do
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if i>0 then i=i-1;
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else return; end;
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end;
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end;
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function g(i)
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while 1 do
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if i>0 then i=i-1
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else return end
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end
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end
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f(10); g(10);
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do
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function f () return 1,2,3; end
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local a, b, c = f();
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assert(a==1 and b==2 and c==3)
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a, b, c = (f());
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assert(a==1 and b==nil and c==nil)
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end
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local a,b = 3 and f();
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assert(a==1 and b==nil)
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function g() f(); return; end;
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assert(g() == nil)
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function g() return nil or f() end
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a,b = g()
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assert(a==1 and b==nil)
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print'+';
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f = [[
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return function ( a , b , c , d , e )
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local x = a >= b or c or ( d and e ) or nil
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return x
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end , { a = 1 , b = 2 >= 1 , } or { 1 };
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]]
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f = string.gsub(f, "%s+", "\n"); -- force a SETLINE between opcodes
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f,a = load(f)();
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assert(a.a == 1 and a.b)
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function g (a,b,c,d,e)
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if not (a>=b or c or d and e or nil) then return 0; else return 1; end;
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end
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function h (a,b,c,d,e)
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while (a>=b or c or (d and e) or nil) do return 1; end;
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return 0;
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end;
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assert(f(2,1) == true and g(2,1) == 1 and h(2,1) == 1)
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assert(f(1,2,'a') == 'a' and g(1,2,'a') == 1 and h(1,2,'a') == 1)
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assert(f(1,2,'a')
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~= -- force SETLINE before nil
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nil, "")
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assert(f(1,2,'a') == 'a' and g(1,2,'a') == 1 and h(1,2,'a') == 1)
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assert(f(1,2,nil,1,'x') == 'x' and g(1,2,nil,1,'x') == 1 and
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h(1,2,nil,1,'x') == 1)
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assert(f(1,2,nil,nil,'x') == nil and g(1,2,nil,nil,'x') == 0 and
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h(1,2,nil,nil,'x') == 0)
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assert(f(1,2,nil,1,nil) == nil and g(1,2,nil,1,nil) == 0 and
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h(1,2,nil,1,nil) == 0)
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assert(1 and 2<3 == true and 2<3 and 'a'<'b' == true)
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x = 2<3 and not 3; assert(x==false)
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x = 2<1 or (2>1 and 'a'); assert(x=='a')
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do
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local a; if nil then a=1; else a=2; end; -- this nil comes as PUSHNIL 2
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assert(a==2)
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end
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function F(a)
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assert(debug.getinfo(1, "n").name == 'F')
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return a,2,3
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end
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a,b = F(1)~=nil; assert(a == true and b == nil);
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a,b = F(nil)==nil; assert(a == true and b == nil)
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----------------------------------------------------------------
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------------------------------------------------------------------
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-- sometimes will be 0, sometimes will not...
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_ENV.GLOB1 = math.floor(os.time()) % 2
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-- basic expressions with their respective values
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local basiccases = {
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{"nil", nil},
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{"false", false},
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{"true", true},
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{"10", 10},
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{"(0==_ENV.GLOB1)", 0 == _ENV.GLOB1},
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}
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print('testing short-circuit optimizations (' .. _ENV.GLOB1 .. ')')
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-- operators with their respective values
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local binops = {
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{" and ", function (a,b) if not a then return a else return b end end},
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{" or ", function (a,b) if a then return a else return b end end},
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}
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local cases = {}
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-- creates all combinations of '(cases[i] op cases[n-i])' plus
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-- 'not(cases[i] op cases[n-i])' (syntax + value)
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local function createcases (n)
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local res = {}
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for i = 1, n - 1 do
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for _, v1 in ipairs(cases[i]) do
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for _, v2 in ipairs(cases[n - i]) do
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for _, op in ipairs(binops) do
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local t = {
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"(" .. v1[1] .. op[1] .. v2[1] .. ")",
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op[2](v1[2], v2[2])
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}
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res[#res + 1] = t
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res[#res + 1] = {"not" .. t[1], not t[2]}
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end
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end
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end
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end
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return res
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end
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-- do not do too many combinations for soft tests
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local level = _soft and 3 or 4
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cases[1] = basiccases
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for i = 2, level do cases[i] = createcases(i) end
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print("+")
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local prog = [[if %s then IX = true end; return %s]]
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local i = 0
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for n = 1, level do
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for _, v in pairs(cases[n]) do
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local s = v[1]
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local p = load(string.format(prog, s, s), "")
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IX = false
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assert(p() == v[2] and IX == not not v[2])
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i = i + 1
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if i % 60000 == 0 then print('+') end
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end
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end
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------------------------------------------------------------------
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-- testing some syntax errors (chosen through 'gcov')
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checkload("for x do", "expected")
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checkload("x:call", "expected")
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if not _soft then
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-- control structure too long
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local s = string.rep("a = a + 1\n", 2^18)
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s = "while true do " .. s .. "end"
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checkload(s, "too long")
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end
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print'OK'
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