def test_primary_1(self):
print("Running {0}".format(sys._getframe().f_code.co_name))
tokens = tokenize("true;", 0)
ast = parse(tokens)
assert ast.type == ExprType.EXPRESSION
assert ast.left is None
assert ast.right.type == ExprType.LITERAL
print(ast)
def runLine(lineNo, line):
tokens = tokenize(line, lineNo)
statements = parse(tokens)
if len(statements) == 1:
return statements[0].evaluate()
else:
for statement in statements:
statement.evaluate()
def test_simple_3(self):
s = "This is.a test"
l = tokenize(s)
assert len(l) == 6
assert l[0][1] == "This"
assert l[1][1] == "is"
assert l[2][1] == "."
assert l[3][1] == "a"
assert l[4][1] == "test"
def test_simple_4(self):
s = 'This is "a" test!'
l = tokenize(s)
assert len(l) == 6
assert l[0][1] == "This"
assert l[0][0] == TokenType.IDENTIFIER
assert l[1][1] == "is"
assert l[1][0] == TokenType.IDENTIFIER
assert l[2][1] == "a"
assert l[2][0] == TokenType.STRING
assert l[3][1] == "test"
assert l[3][0] == TokenType.IDENTIFIER
assert l[4][1] == "!"
assert l[4][0] == TokenType.BANG
assert l[5][0] == TokenType.EOL
def runProgram(prog):
tokens = tokenize(prog)
try:
statements = parse(tokens)
initEnvironment()
for statement in statements:
statement.evaluate()
except ParseException as err:
if err.token is None:
print("Parse error: {0}".format(err.message))
else:
print("Parse error: {0} [Line {1}]".format(err.message,
err.token.lineNo))
except RuntimeException as err:
if err.expr is None or err.expr.token is None or err.expr.token.lineNo == 0:
print("Runtime error: {0}".format(err.message))
else:
print("Runtime error: {0} [Line {1}]".format(
err.message, err.expr.token.lineNo))
def test_equality(self):
print("Running {0}".format(sys._getframe().f_code.co_name))
tokens = tokenize('20- 3 *4 > 15 + 2 == 14 / 3;', 0)
ast = parse(tokens)
print(ast)
def test_comparison(self):
print("Running {0}".format(sys._getframe().f_code.co_name))
tokens = tokenize('20- 3 *4 > 15 + 2 ;', 0)
ast = parse(tokens)
print(ast)
def test_addition3(self):
print("Running {0}".format(sys._getframe().f_code.co_name))
tokens = tokenize('20- 3 *4 ;', 0)
ast = parse(tokens)
print(ast)
def test_multiplication2(self):
print("Running {0}".format(sys._getframe().f_code.co_name))
tokens = tokenize('2* 3 * 4;', 0)
ast = parse(tokens)
print(ast)
def test_grouping(self):
print("Running {0}".format(sys._getframe().f_code.co_name))
tokens = tokenize('(-12.09);', 0)
ast = parse(tokens)
print(ast)
def test_simple_1(self):
s = "This is a test"
l = tokenize(s)
assert len(l) == 5