def test_for_loop(self, capsys):
line = 'for (var i = 0; i < 10; i = i + 1) print i;'
lox = Lox()
lox.run(line)
out, err = capsys.readouterr()
assert err == ''
assert out == "0.0\n1.0\n2.0\n3.0\n4.0\n5.0\n6.0\n7.0\n8.0\n9.0\n"
def test_of(self, capsys):
line = 'var s = "hi"; \
if(s == "hi" or s == "hello") \
print("Greetings");'
lox = Lox()
lox.run(line)
out, err = capsys.readouterr()
assert err == ''
assert out == "Greetings\n"
def test_num_parameters(self, capsys):
line = 'fun add(a, b){ \
return(a + b); \
} \
print(add(10, 5));'
lox = Lox()
lox.run(line)
out, err = capsys.readouterr()
assert err == ''
assert out == "15.0\n"
def test_string_parameters(self, capsys):
line = 'fun strAppend(str1, str2) { \
var str = str1 + str2; \
return str;} \
print(strAppend("foo", "bar"));'
lox = Lox()
lox.run(line)
out, err = capsys.readouterr()
assert err == ''
assert out == "foobar\n"