s = "foo"; s += "bar"
assert(s == "foobar")
assert( 1 + 2 * 3 == 7)
assert((1 + 2)* 3 == 9)
assert(42 % 40.0 == 2)
assert("'\"'" == '\'"\'')
assert("testing" == "test" + "ing")

assert(-0b10110010 == -178 and 0b11001010 == 202)
assert(0b1111111111111111 == 65535)
assert(
  0b1111111111111111111111111111111111111111111111111111111111111111 ==
  18446744073709551615)

assert(0xc0ffee == 12648430)
assert(0xa1b2c3 == 10597059 and 0xff == 255)
assert(0xffffffffffffffff == 18446744073709551615)

## Lists test.
l1 = [1, false, null, func print('hello') end]
assert(is_null(l1[2]))
l1[1] = true; assert(l1[1])

## Builtin functions tests.
assert(to_string(42) == '42')

## Core module test.
import math
h1 = math.hash("testing"); h2 = math.hash("test" + "ing")
assert(h1 == h2)
assert(math.ceil(1.1) == math.floor(2.9))

## Logical statement test
val = 0; a = false; b = true
get_true = func return true end
if a and b then assert(false) end
if a or b then val = 42 else assert(false) end assert(val == 42)
if get_true() or false then val = 12 end assert(val == 12)

## Recursive to_string list/map
l = [1]
list_append(l, l)
assert(to_string(l) == '[1, [...]]')
m = {}
m['m'] = m
assert(to_string(m) == '{"m":{...}}')

# Bitwise operation tests
assert(0b1010 | 0b0101 == 0b1111)
assert(0b1000 | 0b0001 == 0b1001)
assert(0b0011 | 0b1001 == 0b1011)

assert(0b1010 & 0b0101 == 0b0000)
assert(0b1100 & 0b1010 == 0b1000)
assert(0xabcd & 0xffff == 0xabcd)

for i in 0..100 do assert(i^i == 0) end
assert(0b0001 ^ 0b0011 == 0b0010)
assert(0b0010 ^ 0b1001 == 0b1011)

assert(0x1 << 0 == 0b1)
assert(0b1 << 2 == 0b100)
assert(0b1010 << 2 == 0b101000)

assert(0b1 >> 1 == 0)
assert(8 >> 1 == 0x4)
assert(8 >> 2 == 0b10)
assert(0xa >> 1 == 5)

x = 42  ; assert((x&=51) == 34)
x = 123 ; assert((x&=324) == 64)
for i in 0..1000
  x = i; assert((x&=-1) == i)
end

x = 43690 ; assert((x|=21845) == 65535)
x = 204   ; assert((x|=119) == 255)
for i in 0..1000
  x = i; assert((x|=0) == i)
  x = i; assert((x|=-1) == -1)
  x = i; assert((x|=i) == i)
end

x = 4321 ; assert((x^=1234) == 5171)
x = 77   ; assert((x^=88) == 21)
for i in 0..1000
  x = i; assert((x^=i) == 0)
  x = i; assert((x^=0) == i)
  x = i; assert((x^=-1) == -i-1)
end


# If we got here, that means all test were passed.
print('All TESTS PASSED')