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//===== Hercules Script ======================================
//= Script engine self-tests
//===== By: ==================================================
//= Haru
//===== Current Version: =====================================
//= 1.0
//===== Description: =========================================
//= Script to test operators and possibly other elements of
//= the script engine, useful for regression testing.

-	script	HerculesSelfTest	-1,{
	end;
OnCheck:
	.@msg$ = getarg(0,"Unknown Error");
	.@val = getarg(1,0);
	.@ref = getarg(2,1);
	if (.@val != .@ref) {
		debugmes "Error: "+.@msg$+": '"+.@val+"' != '"+.@ref+"'";
		.errors++;
		//end;
	}
	return;
OnCheckStr:
	.@msg$ = getarg(0,"Unknown Error");
	.@val$ = getarg(1,"");
	.@ref$ = getarg(2,"");
	if (.@val$ != .@ref$) {
		debugmes "Error: "+.@msg$+": '"+.@val$+"' != '"+.@ref$+"'";
		.errors++;
		//end;
	}
	return;
OnInit:
	.errors = 0;

	// Array subscript
	setarray .@a, 3, 2, 1;
	callsub(OnCheck, "Array subscript", .@a[2]);


	// Increment and decrement operators ++, --
	.@x = 1;
	.@y = .@x++; // .@y = .@x; .@x = .@x + 1;
	callsub(OnCheck, "Suffix increment ++", .@y);
	callsub(OnCheck, "Suffix increment ++", .@x, 2);
	.@x = 1;
	.@y = .@x--; // .@y = .@x; .@x = .@x - 1;
	callsub(OnCheck, "Suffix decrement --", .@y);
	callsub(OnCheck, "Suffix decrement --", .@x, 0);
	.@x = 0;
	.@y = ++.@x; // .@x = .@x + 1; .@y = .@x;
	callsub(OnCheck, "Prefix increment ++", .@y);
	callsub(OnCheck, "Prefix increment ++", .@x);
	.@x = 2;
	.@y = --.@x; // .@x = .@x - 1; .@y = .@x;
	callsub(OnCheck, "Prefix decrement --", .@y);
	callsub(OnCheck, "Prefix decrement --", .@x);

	// Order of [] and --/++
	.@a[1] = 0;
	.@a[1]++; // .@a[1] = .@a[1] + 1;
	callsub(OnCheck, "Order of [] and ++", .@a[1]);
	.@a[1] = 2;
	.@a[1]--; // .@a[1] = .@a[1] - 1;
	callsub(OnCheck, "Order of [] and --", .@a[1]);


	// Unary operators -, !, ~
	.@x = 1;
	.@y = -.@x; // .@y = 0 - .@x;
	callsub(OnCheck, "Unary operator -", .@y, -1);
	.@x = 1;
	.@y = !.@x; // if(.@x == 0) .@y = 1; else .@y = 0;
	callsub(OnCheck, "Unary operator !", .@y, 0);
	.@x = 0x00000001;
	.@y = ~.@x; // One's complement of 0x00000001 is 0xfffffffe, which is -2
	callsub(OnCheck, "Unary operator ~", .@y, -2);

	// Associativity of unary operators -, !, ~
	.@x = 1;
	.@y = ~ ! .@x; // .@y = ~(!.@x);
	callsub(OnCheck, "Associativity of unary ~ and !", .@y, -1);
	.@x = 0;
	.@y = - ! .@x; // .@y = -(!.@x);
	callsub(OnCheck, "Associativity of unary - and !", .@y, -1);
	.@x = 1;
	.@y = ~ - .@x; // .@y = ~(-.@x);
	callsub(OnCheck, "Associativity of unary ~ and -", .@y, 0);
	.@x = 1;
	.@y = - ~ .@x; // .@y = -(~.@x);
	callsub(OnCheck, "Associativity of unary - and ~", .@y, 2);

	// Order of unary -, !, ~ and prefix/suffix ++/--
	.@x = 2;
	.@y = - --.@x; // .@y = -(--.@x);
	callsub(OnCheck, "Order of unary - and prefix --", .@y, -1);
	callsub(OnCheck, "Order of unary - and prefix --", .@x);
	.@x = 1;
	.@y = - .@x--; // .@y = -(.@x--);
	callsub(OnCheck, "Order of unary - and suffix --", .@y, -1);
	callsub(OnCheck, "Order of unary - and suffix --", .@x, 0);
	.@x = 0;
	.@y = - ++.@x; // .@y = -(++.@x);
	callsub(OnCheck, "Order of unary - and prefix ++", .@y, -1);
	callsub(OnCheck, "Order of unary - and prefix ++", .@x);
	.@x = 1;
	.@y = - .@x++; // .@y = -(.@x++);
	callsub(OnCheck, "Order of unary - and suffix ++", .@y, -1);
	callsub(OnCheck, "Order of unary - and suffix ++", .@x, 2);
	.@x = 1;
	.@y = !--.@x; // .@y = !(--.@x);
	callsub(OnCheck, "Order of unary ! and prefix --", .@y);
	callsub(OnCheck, "Order of unary ! and prefix --", .@x, 0);
	.@x = 1;
	.@y = !.@x--; // .@y = !(.@x--);
	callsub(OnCheck, "Order of unary ! and suffix --", .@y, 0);
	callsub(OnCheck, "Order of unary ! and suffix --", .@x, 0);
	.@x = 0;
	.@y = !++.@x; // .@y = !(++.@x);
	callsub(OnCheck, "Order of unary ! and prefix ++", .@y, 0);
	callsub(OnCheck, "Order of unary ! and prefix ++", .@x);
	.@x = 0;
	.@y = !.@x++; // .@y = !(.@x++);
	callsub(OnCheck, "Order of unary ! and suffix ++", .@y);
	callsub(OnCheck, "Order of unary ! and suffix ++", .@x);
	.@x = 2;
	.@y = ~--.@x; // .@y = ~(--.@x);
	callsub(OnCheck, "Order of unary ~ and prefix --", .@y, -2);
	callsub(OnCheck, "Order of unary ~ and prefix --", .@x, 1);
	.@x = 1;
	.@y = ~.@x--; // .@y = ~(.@x--);
	callsub(OnCheck, "Order of unary ~ and suffix --", .@y, -2);
	callsub(OnCheck, "Order of unary ~ and suffix --", .@x, 0);
	.@x = 0;
	.@y = ~++.@x; // .@y = ~(++.@x);
	callsub(OnCheck, "Order of unary ~ and prefix ++", .@y, -2);
	callsub(OnCheck, "Order of unary ~ and prefix ++", .@x, 1);
	.@x = 1;
	.@y = ~.@x++; // .@y = ~(.@x++);
	callsub(OnCheck, "Order of unary ~ and suffix ++", .@y, -2);
	callsub(OnCheck, "Order of unary ~ and suffix ++", .@x, 2);

	// Binary *, /, % operators
	.@x = 2 * 3; // .@x = 6;
	callsub(OnCheck, "Binary * operator", .@x, 6);
	.@x = 7 / 2; // .@x = 3;
	callsub(OnCheck, "Binary / operator", .@x, 3);
	.@x = 7 % 2; // .@x = 1;
	callsub(OnCheck, "Binary % operator", .@x, 1);

	// Associativity of *, /, %
	.@x = 8 * 3 / 2; // .@x = (8 * 3) / 2;
	callsub(OnCheck, "Associativity of * and /", .@x, 12);

	// Order of binary *%/ and unary !-~
	.@x = 2 * ! 3; // .@x = 2 * (!3);
	callsub(OnCheck, "Order of binary * and unary !", .@x, 0);
	.@x = ~ 1 * 2; // .@x = (~1) * 2;
	callsub(OnCheck, "Order of unary ~ and binary *", .@x, -4);


	// Binary +, - operators
	.@x = 1 + 3; // .@x = 4;
	callsub(OnCheck, "Binary + operator", .@x, 4);
	.@x = 1 - 3; // .@x = -2;
	callsub(OnCheck, "Binary - operator", .@x, -2);

	// Associativity of +,-
	.@x = 0x7fffffff - 0x7ffffff0 + 1; // .@x = (0x7fffffff - 0x7ffffff0) + 1; (without overflow)
	callsub(OnCheck, "Associativity of + and -", .@x, 16);

	// Order of +, - and *, /, %
	.@x = 1 + 3 * 2; // .@x = 1 + (3 * 2);
	callsub(OnCheck, "Order of + and *", .@x, 7);


	// << and >> operators
	.@x = 1<<3; // .@x = 1*2*2*2;
	callsub(OnCheck, "Left shift << operator", .@x, 8);
	.@x = 12>>2; // .@x = 12/2/2;
	callsub(OnCheck, "Right shift >> operator", .@x, 3);

	// Associativity of << and >>
	.@x = 0x40000000 >> 4 << 2; // .@x = (0x40000000 >> 4) << 2
	callsub(OnCheck, "Associativity of >> and <<", .@x, 0x10000000);

	// Order of <</>> and +/-
	.@x = 4 << 2 + 1; // .@x = 4 << (2+1);
	callsub(OnCheck, "Order of << and +", .@x, 32);


	// <, <=, >, >= operators
	.@x = (1 < 2); // true
	.@y = (2 < 2); // false
	callsub(OnCheck, "< operator", .@x);
	callsub(OnCheck, "< operator", .@y, 0);
	.@x = (1 <= 2); // true
	.@y = (2 <= 2); // true
	callsub(OnCheck, "<= operator", .@x);
	callsub(OnCheck, "<= operator", .@y);
	.@x = (2 > 1); // true
	.@y = (2 > 2); // false
	callsub(OnCheck, "> operator", .@x);
	callsub(OnCheck, "> operator", .@y, 0);
	.@x = (2 >= 1); // true
	.@y = (2 >= 2); // true
	callsub(OnCheck, ">= operator", .@x);
	callsub(OnCheck, ">= operator", .@y);

	// Associativity of <,<=,>,>=
	.@x = 1 > 0 > 0; // (1 > 0) > 0  -->  1 > 0  -->  true
	callsub(OnCheck, "Associativity of > operators", .@x);

	// Order of >>/<< and </<=/>/>=
	.@x = 1 < 1 << 2; // .@x = 1 < (1<<2);
	callsub(OnCheck, "Order of < and <<", .@x);


	// ==, != operators
	.@x = (0 == 0); // true
	.@y = (1 == 0); // false
	callsub(OnCheck, "== operator", .@x);
	callsub(OnCheck, "== operator", .@y, 0);
	.@x = (1 != 0); // true
	.@y = (1 != 1); // false
	callsub(OnCheck, "!= operator", .@x);
	callsub(OnCheck, "!= operator", .@y, 0);

	// Associativity of ==, !=
	.@x = (1 == 0 == 0); // (1 == 0) == 0  -->  0 == 0  --> 1
	.@y = (1 != 0 == 0); // (1 != 0) == 0  -->  1 == 0  --> 0
	callsub(OnCheck, "Associativity of != and == operators", .@x);
	callsub(OnCheck, "Associativity of != and == operators", .@y, 0);

	// Order of </<=/>/>= and ==/!=
	.@x = (1 == 2 > 1); // true
	.@y = (1 < 2 == 1); // true
	callsub(OnCheck, "Order of <,>,==", .@x);
	callsub(OnCheck, "Order of <,>,==", .@y);


	.@x$ = "string "
		"concatenation" /* test */ " succeeded";
	callsub(OnCheckStr, "String concatenation", .@x$, "string concatenation succeeded");


	// Bitwise & operator
	.@x = (7&4); // 0111 & 0100 --> 0100
	.@y = (4&1); // 0100 & 0001 --> 0000
	callsub(OnCheck, "Bitwise & operator", .@x, 4);
	callsub(OnCheck, "Bitwise & operator", .@y, 0);

	// Order of & and ==/!=
	.@x = (4 == 7 & 4); // (4 == 7)&4
	.@y = (1 & 3 != 1); // 1 & (3 != 1)
	callsub(OnCheck, "Order of ==/!= and &", .@x, 0);
	callsub(OnCheck, "Order of ==/!= and &", .@y);


	// Bitwise ^ operator
	.@x = (3^1); // 0011 ^ 0001 --> 0010
	callsub(OnCheck, "Bitwise ^ operator", .@x, 2);

	// Order of ^ and &
	.@x = (0 & 2 ^ 2); // (0 & 2) ^ 2 --> (0000 & 0010) | 0010 --> 0000 ^ 0010 --> 0010
	.@y = (2 ^ 2 & 0); // 2 ^ (2 & 0) --> 0010 | (0010 & 0000) --> 0010 ^ 0000 --> 0010
	callsub(OnCheck, "Order of ^ and &", .@x, 2);
	callsub(OnCheck, "Order of ^ and &", .@y, 2);


	// Bitwise | operator
	.@x = (3|4); // 0011 | 0100 --> 0111
	.@y = (4|1); // 0100 | 0001 --> 0101
	callsub(OnCheck, "Bitwise | operator", .@x, 7);
	callsub(OnCheck, "Bitwise | operator", .@y, 5);

	// Order of ^ and |
	.@x = (2 ^ 2 | 2); // (2 ^ 1) | 4 --> (0010 ^ 0010) | 0010 --> 0000 | 0010 --> 0010
	.@y = (2 | 2 ^ 2); // 4 | (1 ^ 2) --> 0010 | (0010 ^ 0010) --> 0010 | 0000 --> 0010
	callsub(OnCheck, "Order of | and ^", .@x, 2);
	callsub(OnCheck, "Order of | and ^", .@y, 2);


	// Logical && operator
	.@x = (1 && 1); // true
	.@y = (0 && 1); // false
	callsub(OnCheck, "Logical && operator", .@x);
	callsub(OnCheck, "Logical && operator", .@y, 0);

	// Associativity of && and short-circuit
	.@x = 0;
	.@y = (1 && 0 && (.@x = 1)); // should short circuit as false before evaluating the assignment
	//FIXME callsub(OnCheck, "Short-circuit of &&", .@x, 0);
	callsub(OnCheck, "Associativity of &&", .@y, 0);

	// Order of bitwise | and logical &&
	.@x = (1 && 0 | 4); // 1 && (0|4)
	.@y = (4 | 0 && 1); // (4|0) && 1
	callsub(OnCheck, "Order of && and |", .@x);
	callsub(OnCheck, "Order of && and |", .@y);


	// Logical || operator
	.@x = (1 || 1); // true
	.@y = (0 || 1); // true
	callsub(OnCheck, "Logical || operator", .@x);
	callsub(OnCheck, "Logical || operator", .@y);

	// Associativity of || and short-circuit
	.@x = 0;
	.@y = (1 || 0 || (.@x = 1)); // should short circuit as true before evaluating the assignment
	//FIXME callsub(OnCheck, "Short-circuit of ||", .@x, 0);
	callsub(OnCheck, "Associativity of ||", .@y);

	// Order of logical && and ||
	.@x = (0 && 1 || 1); // (0 && 1) || 1
	.@y = (1 || 1 && 0); // 1 || (1 && 0)
	callsub(OnCheck, "Order of && and ||", .@x);
	callsub(OnCheck, "Order of && and ||", .@y);

	// Ternary conditional operator ?:
	.@x = (1 ? 2 : 3); // 2
	.@y = (0 ? 2 : 3); // 3
	callsub(OnCheck, "Ternary conditional operator", .@x, 2);
	callsub(OnCheck, "Ternary conditional operator", .@y, 3);

	// Associativity of ?:
	.@x = (1 ? 2 : 0 ? 3 : 4);
	.@y = (1 ? 1 ? 2 : 3 : 5);
	callsub(OnCheck, "Associativity of ?:", .@x, 2);
	callsub(OnCheck, "Associativity of ?:", .@y, 2);

	// Order of logical || and ternary ?:
	.@x = (1 ? 0 : 0 || 1); // 1 ? 0 : (0 || 1) --> false
	callsub(OnCheck, "Order of || and ?:", .@x, 0);


	// Assignment operators
	.@x = 1;
	callsub(OnCheck, "Direct assignment operator =", .@x);
	.@x += 7; // 1 + 7
	callsub(OnCheck, "Assignment by sum +=", .@x, 8);
	.@x -= 1; // 8 - 1
	callsub(OnCheck, "Assignment by difference -=", .@x, 7);
	.@x *= 2; // 7 * 2
	callsub(OnCheck, "Assignment by product *=", .@x, 14);
	.@x /= 2; // 14 / 2
	callsub(OnCheck, "Assignment by quotient /=", .@x, 7);
	.@x %= 4; // 7 % 4
	callsub(OnCheck, "Assignment by remainder %=", .@x, 3);
	.@x <<= 2; // 3 << 2
	callsub(OnCheck, "Assignment by bitwise left shift <<=", .@x, 12);
	.@x >>= 1; // 12 >> 1
	callsub(OnCheck, "Assignment by bitwise right shift >>=", .@x, 6);
	.@x &= 5; // 6 & 5 (0110 & 0101 --> 0100)
	callsub(OnCheck, "Assignment by bitwise and &=", .@x, 4);
	.@x ^= 5; // 4 ^ 5 (0100 ^ 0101 --> 0001)
	callsub(OnCheck, "Assignment by bitwise xor ^=", .@x, 1);
	.@x |= 2; // 1 | 2 (0001 | 0010 --> 0011)
	callsub(OnCheck, "Assignment by bitwise or |=", .@x, 3);

	// Associativity of assignment operators
	.@x = 0; .@y = 0;
	.@x = .@y = 1;
	callsub(OnCheck, "Associativity of =", .@x);
	callsub(OnCheck, "Associativity of =", .@y);
	.@x = 0; .@y = 1;
	.@x = .@y += 4;
	callsub(OnCheck, "Associativity of = and +=", .@x, 5);
	callsub(OnCheck, "Associativity of = and +=", .@y, 5);
	.@x = 5; .@y = 3;
	.@z = 8;
	.@x *= .@y += 1;
	callsub(OnCheck, "Associativity of *= and +=", .@x, 20);
	callsub(OnCheck, "Associativity of *= and +=", .@y, 4);

	.@x = 1; .@y = 3;
	.@x += .@y * 10;
	callsub(OnCheck, "Order of += and *", .@x, 31);
	.@x = 1; .@y = 3;
	.@x = .@y != 3 ? .@y = 2 : 4;
	callsub(OnCheck, "Order of = and ?:", .@x, 4);
	// FIXME callsub(OnCheck, "Short-circuit of ?:", .@y, 3);

	.@x = 0;
	if (0)
		if (1)
			.@x = 2;
		else
			.@x = 3;
	callsub(OnCheck, "Dangling else", .@x, 0);

	if (.errors) {
		debugmes "Script engine self-test   [ FAILED ]";
		debugmes "The test was completed with " + .errors + " errors.";
	} else {
		debugmes "Script engine self-test   [ PASSED ]";
	}
}