def test_bug(): f = RStringIO() f.write('0') f.write('1') f.write('2') assert f.getvalue() == '012' f.write('3') assert f.getvalue() == '0123'
def test_seek(): f = RStringIO() f.write('0123') f.write('456') f.write('789') f.seek(4) f.write('AB') assert f.getvalue() == '0123AB6789' f.seek(-2, 2) f.write('CDE') assert f.getvalue() == '0123AB67CDE' f.seek(2, 0) f.seek(5, 1) f.write('F') assert f.getvalue() == '0123AB6FCDE'
def test_write_many(): f = RStringIO() for j in range(10): for i in range(253): f.write(chr(i)) expected = ''.join([chr(i) for j in range(10) for i in range(253)]) assert f.getvalue() == expected
class W_StringObject(W_Root): _immutable_fields_ = ['stringval'] def __init__(self, stringval): assert(isinstance(stringval, str)) self.stringval = RStringIO() self.stringval.write(stringval) def append(self, stringval): self.stringval.write(stringval) def get(self, key): assert isinstance(key, W_IntObject) key = key.get_int() return W_StringObject(self.str()[key]) def str(self): return self.stringval.getvalue() def hash(self): return compute_hash(self.str()) def len(self): return len(self.str()) def __deepcopy__(self): obj = instantiate(self.__class__) obj.stringval = self.stringval return obj def __repr__(self): return 'W_StringObject(%s)' % (self.str(),)
def test_truncate(): f = RStringIO() f.truncate(20) assert f.getvalue() == '' assert f.tell() == 0 f.write('\x00' * 25) f.seek(12) f.truncate(20) assert f.getvalue() == '\x00' * 20 assert f.tell() == 20 f.write('more') f.truncate(20) assert f.getvalue() == '\x00' * 20 assert f.tell() == 20 f.write('hello') f.write(' world') f.truncate(30) assert f.getvalue() == '\x00' * 20 + 'hello worl' f.truncate(25) assert f.getvalue() == '\x00' * 20 + 'hello' f.write('baz') f.write('egg') f.truncate(3) assert f.getvalue() == '\x00' * 3 assert f.tell() == 3
def test_tell(): f = RStringIO() f.write('0123') f.write('456') assert f.tell() == 7 f.seek(2) for i in range(3, 20): f.write('X') assert f.tell() == i assert f.getvalue() == '01XXXXXXXXXXXXXXXXX' f.seek(1) f.close() assert f.tell() == 0
def test_stress(): import cStringIO, random f = RStringIO() expected = cStringIO.StringIO() for i in range(2000): r = random.random() if r < 0.15: p = random.randrange(-5000, 10000) if r < 0.05: mode = 0 elif r < 0.1: mode = 1 else: mode = 2 print 'seek', p, mode f.seek(p, mode) expected.seek(p, mode) elif r < 0.6: buf = str(random.random()) print 'write %d bytes' % len(buf) f.write(buf) expected.write(buf) elif r < 0.92: n = random.randrange(0, 100) print 'read %d bytes' % n data1 = f.read(n) data2 = expected.read(n) assert data1 == data2 elif r < 0.97: print 'check tell()' assert f.tell() == expected.tell() else: print 'check getvalue()' assert f.getvalue() == expected.getvalue() assert f.getvalue() == expected.getvalue() assert f.tell() == expected.tell()
def test_write_beyond_end(): f = RStringIO() f.seek(20, 1) assert f.tell() == 20 f.write('X') assert f.getvalue() == '\x00' * 20 + 'X'
def test_simple(): f = RStringIO() f.write('hello') f.write(' world') assert f.getvalue() == 'hello world'
def test_truncate_end(): f = RStringIO() f.write("abc") f.seek(0) f.truncate(0) assert f.getvalue() == ""