def test_nested_loop():
ast = parse(',[<[-]>].')
c = Compiler(ast)
b = c.compile()
exp = [chr(bytecodes.BF_READ), chr(bytecodes.BF_JUMP_IF_ZERO)] + c.encode4(24) + [chr(bytecodes.BF_DCR_DP), chr(bytecodes.BF_JUMP_IF_ZERO)] + c.encode4(18) + [chr(bytecodes.BF_DCR_D), chr(bytecodes.BF_JUMP_UNLESS_ZERO)] + c.encode4(12) + [chr(bytecodes.BF_INCR_DP), chr(bytecodes.BF_JUMP_UNLESS_ZERO)] + c.encode4(6) + [chr(bytecodes.BF_ECHO)]
print b
print exp
assert len(b) == len(exp)
assert b == exp
def test_bytecodes2():
ast = parse('<')
c = Compiler(ast)
b = c.compile()
assert b == [chr(bytecodes.BF_DCR_DP)]
def test_compile_loop():
ast = parse('[-]')
c = Compiler(ast)
b = c.compile()
exp = [chr(bytecodes.BF_JUMP_IF_ZERO)] + c.encode4(11) + [chr(bytecodes.BF_DCR_D)] + [chr(bytecodes.BF_JUMP_UNLESS_ZERO)] + c.encode4(5)
assert b == exp
def test_bytecodes6():
ast = parse(',')
c = Compiler(ast)
b = c.compile()
assert b == [chr(bytecodes.BF_READ)]
def test_bytecodes5():
ast = parse('.')
c = Compiler(ast)
b = c.compile()
assert b == [chr(bytecodes.BF_ECHO)]
def test_bytecodes3():
ast = parse('+')
c = Compiler(ast)
b = c.compile()
assert b == [chr(bytecodes.BF_INCR_D)]