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/*
* Nickle Testing Suite v1.0
* Operator Testing Code
* Written by Erin Chapman
*/
void check (poly value, poly correct)
{
if (is_number (value) && !is_rational (value))
{
real error = abs (value - correct);
if (error < abs(value) / 1e7)
return;
}
if (value != correct)
abort ("check failed (was %v, should be %v)", value, correct);
}
/* Assigns a value to x for testing. */
int x;
check (x = 1, 1);
/* Tests unary increment and decrememnt. */
check (++x, 2);
check (x++, 2);
check (x, 3);
check (--x, 2);
check (x--, 2);
check (x, 1);
/* Tests Unary negate */
check (-x, -1);
/* Tests logical negation */
check (!true, false);
/* Assigns a different value to x for testing. */
check (x = 4, 4);
/* Test Factorial. */
check (x!, 24);
/* Tests pointer construction and dereference. */
*int z;
check (z = &x, &x);
check (*z, 4);
/* Tests construction and evaluation of a union. */
union {int a; string b;} test;
check (sprintf ("%v", test), "{<unset>}")
check (test.a = 1, 1);
check (test, (union {int a;}) { .a = 1});
check (test.b = "hello", "hello");
check (test, (union {string b;}) { .b = "hello" });
check (bool func () { try {
test.a;
return false;
} catch invalid_struct_member (poly test, string name) {
return true;
} return false; } (), true);
/* Tests exponentiation. */
check (x**2, 16);
check (x**.5, 2);
check ((x/3)**2, 16/9);
check ((x/3)**.5, 2 / sqrt (3));
check ((-x)**2, 16);
check (bool func () { try {
(-x)**.5;
return false;
} catch invalid_argument (msg, int i, poly value) {
return true;
} return false; } (), true);
/* Tests multiplication. */
check (x*2, 8);
/* Tests division. */
check (x/2, 2);
/* Tests integer division. */
check (x//3, 1);
check (x//3 == floor(x/3), true);
check ((x//3)*3+(x%3) == x, true);
/* Tests remainder. */
check (x%3, 1);
/* Tests addition and subtraction. */
check (x+3, 7);
check (x-3, 1);
/* Tests bitwise left shift. */
check (x<<1, 8);
check (x<<-1, 2);
check (x<<1 == x*2**1, true);
/* Tests bitwise right shift. */
check (x>>1, 2);
check (x>>-1, 8);
check (x>>1 == x//2**1, true);
/* Tests relational operators. */
check (x<=10, true);
check (x>=-10, true);
check (x < 15, true);
check (x > -15, true);
/* Tests equality operators. */
check (x == x, true);
check (x != x - 1, true);
/* Tests bitwise AND. */
check (1&2, 0);
check (2&3, 2);
check (3&3, 3);
/* Tests bitwsie XOR. */
check (1^2, 3);
check (2^3, 1);
check (3^3, 0);
/* Tests bitwise OR. */
check (0|0, 0);
check (0|1, 1);
/* Tests short-circuit logical AND. */
check (true&&false, false);
check (true&&true, true);
check (false&&false, false);
check (false&&true, false);
/* Tests short-circuit logical OR. */
check (true||true, true);
check (true||false, true);
check (false||false, false);
check (false||true, true);
/* Assigns a value to y for testing. */
int y = 0;
check (y, 0);
/* Tests conditional expressions. */
check (y == 0 ? 1 : 2, 1);
check (y == 1 ? 1 : 2, 2);
/* Tests assignment operators. */
check (bool func () { try {
x = 3;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Equals assignment failed (x = 3).\n");
return false;
} return false; } (), true);
check (x, 3);
check (bool func () { try {
x += 1;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Plus equals assignment failed (x += 1).\n");
return false;
} return false; } (), true);
check (x, 4);
check (bool func () { try {
x -= 1;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Minus equals assignment failed (x -= 1).\n");
return false;
} return false; } (), true);
check (x, 3);
check (bool func () { try {
x *= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Times equals assignment failed (x *= 2).\n");
return false;
} return false; } (), true);
check (x, 6);
check (bool func () { try {
x /= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Divide equals assignment failed (x /= 2).\n");
return false;
} return false; } (), true);
check (x, 3);
check (bool func () { try {
x //= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Integer divide equals assignment failed (x //= 2).\n");
return false;
} return false; } (), true);
check (x, 1);
check (bool func () { try {
x %= 3;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Remainder equals assignment failed (x %= 3).\n");
return false;
} return false; } (), true);
check (x, 1);
check (x = 2, 2);
check (bool func () { try {
x **= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Exponentiation equals assignment failed (x **= 2).\n");
return false;
} return false; } (), true);
check (x, 4);
check (bool func () { try {
x <<= 1;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Bitwise left shift equals assignment failed (x <<= 1).\n");
return false;
} return false; } (), true);
check (x, 8);
check (bool func () { try {
x >>= 1;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Bitwise right shift equals assignment failed (x >>= 1).\n");
return false;
} return false; } (), true);
check (x, 4);
check (bool func () { try {
x ^= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Bitwise XOR equals assignment failed (x ^= 2).\n");
return false;
} return false; } (), true);
check (x, 6);
check (bool func () { try {
x &= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Bitwise AND equals assignment failed (x &= 2).\n");
return false;
} return false; } (), true);
check (x, 2);
check (bool func () { try {
x |= 2;
return true;
} catch invalid_argument (string msg, int i, poly value) {
printf("Bitwise OR assignment failed (x |= 2).\n");
return false;
} return false; } (), true);
check (x, 2);
quit
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