def test_find_first(self):
s = StringList(["A", "B", "C"])
self.assertEqual(s.index("A"), 0)
self.assertEqual(s.index("B"), 1)
self.assertEqual(s.index("C"), 2)
self.assertEqual(s.index("D"), -1)
def test_append(self):
s1 = StringList(["A", "B"])
s1.append("C")
s2 = StringList(["A","B","C"])
self.assertEqual(s1, ["A", "B", "C"])
self.assertEqual(s1, s2)
self.assertFalse(s1 == ["A","B","D"])
self.assertFalse(s1 == ["A","B","C" , "D"])
def test_last(self):
s = StringList(initial=["A", "list", "of", "strings"])
self.assertEqual(s.last, "strings")
with self.assertRaises(IndexError):
s.pop()
s.pop()
s.pop()
s.pop()
s.last
def test_append(self):
s1 = StringList(["A", "B"])
s1.append("C")
s2 = StringList(["A","B","C"])
self.assertEqual(s1, ["A", "B", "C"])
self.assertEqual(s1, s2)
self.assertFalse(s1 == ["A","B","D"])
self.assertFalse(s1 == ["A","B","C" , "D"])
pfx = 'StringList(size' # __repr__
self.assertEqual(pfx, repr(s2)[:len(pfx)])
def test_pop( self ):
s = StringList(initial=["A", "list", "of", "strings"])
s1 = s.pop()
self.assertTrue(len(s) == 3)
self.assertTrue(s1 == "strings")
s1 = s.pop()
self.assertTrue(len(s) == 2)
self.assertTrue(s1 == "of")
s1 = s.pop()
self.assertTrue(len(s) == 1)
self.assertTrue(s1 == "list")
s1 = s.pop()
self.assertTrue(len(s) == 0)
self.assertTrue(s1 == "A")
with self.assertRaises(IndexError):
s.pop()
def test_front_back(self):
s = StringList()
with self.assertRaises(LookupError):
s.front()
with self.assertRaises(LookupError):
s.back()
s.append("S1")
s.append("S2")
s.append("S3")
self.assertEqual("S1", s.front())
self.assertEqual("S3", s.back())
def test_append_not_string(self):
s = StringList()
s.append(10)
self.assertEqual(len(s), 1)
self.assertEqual(s[0], "10")
def test_in_and_not_in(self):
s = StringList(["A", "list", "of", "strings"])
self.assertTrue("A" in s)
self.assertTrue("Bjarne" not in s)
def test_append_not_string(self):
s = StringList()
s.append(10)
self.assertEqual( len(s) , 1)
self.assertEqual(s[0] , "10")
def test_front_back(self):
s = StringList()
with self.assertRaises(LookupError):
s.front()
with self.assertRaises(LookupError):
s.back()
s.append("S1")
s.append("S2")
s.append("S3")
self.assertEqual( "S1" , s.front() )
self.assertEqual( "S3" , s.back() )
def test_append(self):
s = StringList(["A", "B"])
s.append("C")
self.assertEqual(list(s), ["A", "B", "C"])
def test_append(self):
s = StringList(["A", "B"])
s.append("C")
self.assertEqual(list(s), ["A", "B", "C"])
