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# -*- coding: utf-8 -*-
import types
import unittest
import pytest
import sqlparse
from sqlparse import compat
from sqlparse import lexer
from sqlparse import sql
from sqlparse.tokens import * # noqa
class TestTokenize(unittest.TestCase):
def test_simple(self):
s = 'select * from foo;'
stream = lexer.tokenize(s)
self.assert_(isinstance(stream, types.GeneratorType))
tokens = list(stream)
self.assertEqual(len(tokens), 8)
self.assertEqual(len(tokens[0]), 2)
self.assertEqual(tokens[0], (Keyword.DML, 'select'))
self.assertEqual(tokens[-1], (Punctuation, ';'))
def test_backticks(self):
s = '`foo`.`bar`'
tokens = list(lexer.tokenize(s))
self.assertEqual(len(tokens), 3)
self.assertEqual(tokens[0], (Name, '`foo`'))
def test_linebreaks(self): # issue1
s = 'foo\nbar\n'
tokens = lexer.tokenize(s)
self.assertEqual(''.join(str(x[1]) for x in tokens), s)
s = 'foo\rbar\r'
tokens = lexer.tokenize(s)
self.assertEqual(''.join(str(x[1]) for x in tokens), s)
s = 'foo\r\nbar\r\n'
tokens = lexer.tokenize(s)
self.assertEqual(''.join(str(x[1]) for x in tokens), s)
s = 'foo\r\nbar\n'
tokens = lexer.tokenize(s)
self.assertEqual(''.join(str(x[1]) for x in tokens), s)
def test_inline_keywords(self): # issue 7
s = "create created_foo"
tokens = list(lexer.tokenize(s))
self.assertEqual(len(tokens), 3)
self.assertEqual(tokens[0][0], Keyword.DDL)
self.assertEqual(tokens[2][0], Name)
self.assertEqual(tokens[2][1], 'created_foo')
s = "enddate"
tokens = list(lexer.tokenize(s))
self.assertEqual(len(tokens), 1)
self.assertEqual(tokens[0][0], Name)
s = "join_col"
tokens = list(lexer.tokenize(s))
self.assertEqual(len(tokens), 1)
self.assertEqual(tokens[0][0], Name)
s = "left join_col"
tokens = list(lexer.tokenize(s))
self.assertEqual(len(tokens), 3)
self.assertEqual(tokens[2][0], Name)
self.assertEqual(tokens[2][1], 'join_col')
def test_negative_numbers(self):
s = "values(-1)"
tokens = list(lexer.tokenize(s))
self.assertEqual(len(tokens), 4)
self.assertEqual(tokens[2][0], Number.Integer)
self.assertEqual(tokens[2][1], '-1')
# Somehow this test fails on Python 3
@pytest.mark.skipif('sys.version_info >= (3,0)')
def test_tab_expansion(self):
s = "\t"
lex = lexer.Lexer()
lex.tabsize = 5
tokens = list(lex.get_tokens(s))
self.assertEqual(tokens[0][1], " " * 5)
class TestToken(unittest.TestCase):
def test_str(self):
token = sql.Token(None, 'FoO')
self.assertEqual(str(token), 'FoO')
def test_repr(self):
token = sql.Token(Keyword, 'foo')
tst = "<Keyword 'foo' at 0x"
self.assertEqual(repr(token)[:len(tst)], tst)
token = sql.Token(Keyword, '1234567890')
tst = "<Keyword '123456...' at 0x"
self.assertEqual(repr(token)[:len(tst)], tst)
def test_flatten(self):
token = sql.Token(Keyword, 'foo')
gen = token.flatten()
self.assertEqual(type(gen), types.GeneratorType)
lgen = list(gen)
self.assertEqual(lgen, [token])
class TestTokenList(unittest.TestCase):
def test_repr(self):
p = sqlparse.parse('foo, bar, baz')[0]
tst = "<IdentifierList 'foo, b...' at 0x"
self.assertEqual(repr(p.tokens[0])[:len(tst)], tst)
def test_token_first(self):
p = sqlparse.parse(' select foo')[0]
first = p.token_first()
self.assertEqual(first.value, 'select')
self.assertEqual(p.token_first(ignore_whitespace=False).value, ' ')
self.assertEqual(sql.TokenList([]).token_first(), None)
def test_token_matching(self):
t1 = sql.Token(Keyword, 'foo')
t2 = sql.Token(Punctuation, ',')
x = sql.TokenList([t1, t2])
self.assertEqual(x.token_matching(0, [lambda t: t.ttype is Keyword]),
t1)
self.assertEqual(x.token_matching(0,
[lambda t: t.ttype is Punctuation]),
t2)
self.assertEqual(x.token_matching(1, [lambda t: t.ttype is Keyword]),
None)
class TestStream(unittest.TestCase):
def test_simple(self):
stream = compat.StringIO("SELECT 1; SELECT 2;")
lex = lexer.Lexer()
tokens = lex.get_tokens(stream)
self.assertEqual(len(list(tokens)), 9)
stream.seek(0)
lex.bufsize = 4
tokens = list(lex.get_tokens(stream))
self.assertEqual(len(tokens), 9)
stream.seek(0)
lex.bufsize = len(stream.getvalue())
tokens = list(lex.get_tokens(stream))
self.assertEqual(len(tokens), 9)
def test_error(self):
stream = compat.StringIO("FOOBAR{")
lex = lexer.Lexer()
lex.bufsize = 4
tokens = list(lex.get_tokens(stream))
self.assertEqual(len(tokens), 2)
self.assertEqual(tokens[1][0], Error)
@pytest.mark.parametrize('expr', ['JOIN', 'LEFT JOIN', 'LEFT OUTER JOIN',
'FULL OUTER JOIN', 'NATURAL JOIN',
'CROSS JOIN', 'STRAIGHT JOIN',
'INNER JOIN', 'LEFT INNER JOIN'])
def test_parse_join(expr):
p = sqlparse.parse('%s foo' % expr)[0]
assert len(p.tokens) == 3
assert p.tokens[0].ttype is Keyword
def test_parse_endifloop():
p = sqlparse.parse('END IF')[0]
assert len(p.tokens) == 1
assert p.tokens[0].ttype is Keyword
p = sqlparse.parse('END IF')[0]
assert len(p.tokens) == 1
p = sqlparse.parse('END\t\nIF')[0]
assert len(p.tokens) == 1
assert p.tokens[0].ttype is Keyword
p = sqlparse.parse('END LOOP')[0]
assert len(p.tokens) == 1
assert p.tokens[0].ttype is Keyword
p = sqlparse.parse('END LOOP')[0]
assert len(p.tokens) == 1
assert p.tokens[0].ttype is Keyword
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