class TestStringList_StartWithString(unittest.TestCase):
"""
Test basic functionality of a StringList when the initial value is a
string.
"""
def setUp(self):
from stringlist import StringList
self.sl = StringList('hello world')
self.sl2 = StringList()
def test_empty_stringlist(self):
"""
What happens when a StringList is initialized with no parameters?
"""
self.assertEquals(self.sl2, "")
self.sl2 += 'foo'
self.assertEquals(self.sl2, "foo")
def test_empty_stringlist_convert(self):
"""
What happens when a StringList is initialized with no parameters and append() is called?
"""
self.sl2.append('foo')
self.assertEquals(self.sl2, ['foo'])
def test_string_split(self):
"""
Does split() work as expected?
"""
self.assertEquals(self.sl.split(' '), ['hello', 'world'])
def test_string_array(self):
"""
Do the string index/slice methods work?
"""
self.assertEquals(self.sl[1:3], 'el')
self.assertEquals(self.sl[0], 'h')
def test_string_addition(self):
"""
Can we add two stringlist objects together, if they are strings?
"""
new_sl = self.sl + " wow!"
self.assertEquals(new_sl, "hello world wow!")
# make sure the original property isn't altered.
self.assertEquals(self.sl, "hello world")
def test_string_iaddition(self):
"""
Can we do an inline addition of another string?
"""
self.sl += " zoinks!"
self.assertEquals(self.sl, "hello world zoinks!")
def test_string_conversion(self):
"""
Convert from a string to an array
"""
self.sl.append('foo bar')
self.assertEquals(self.sl, ['hello world', 'foo bar'])
def test_iteration(self):
"""
Use the StringList in a loop
"""
output = []
for x in self.sl:
output.append(x)
self.assertEquals(output, ['h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'])
self.assertEquals([x for x in self.sl], ['h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'])
def test_contains(self):
"""
Does x in StringList work?
"""
self.assertTrue('e' in self.sl)
self.assertFalse('x' in self.sl)
def test_delete(self):
"""
Test del StringList[x] - should raise an exception
"""
with self.assertRaises(TypeError):
del self.sl[1]
def test_index_assignment(self):
"""
Test StringList[x] = 'c' - should raise an exception
"""
with self.assertRaises(TypeError):
self.sl[1] = 'd'
def test_length(self):
"""
len(StringList)
"""
self.assertEquals(len(self.sl), 11)
def test_inline_addition_integer(self):
"""
StringList += 100
"""
with self.assertRaises(TypeError):
self.sl += 100
def test_addition_object(self):
"""
StringList + 100
"""
with self.assertRaises(TypeError):
new_sl = self.sl + 100
def test_cast_to_string(self):
"""
str(StringList)
"""
self.assertEquals(str(self.sl), "'hello world'")
