public virtual void TestBasicOperations()
{
TreeShapedStack <string> tss = new TreeShapedStack <string>();
NUnit.Framework.Assert.AreEqual(tss.size, 0);
TreeShapedStack <string> tss1 = tss.Push("1");
NUnit.Framework.Assert.AreEqual(tss1.size, 1);
NUnit.Framework.Assert.AreEqual(tss1.Peek(), "1");
TreeShapedStack <string> tss2 = tss1.Push("2");
NUnit.Framework.Assert.AreEqual(tss2.size, 2);
NUnit.Framework.Assert.AreEqual(tss2.Peek(), "2");
NUnit.Framework.Assert.AreEqual(tss2.previous.Peek(), "1");
TreeShapedStack <string> tss3 = tss2.Push("3");
NUnit.Framework.Assert.AreEqual(tss3.size, 3);
NUnit.Framework.Assert.AreEqual(tss3.Peek(), "3");
NUnit.Framework.Assert.AreEqual(tss3.previous.Peek(), "2");
tss3 = tss3.Pop();
NUnit.Framework.Assert.AreEqual(tss3.Peek(), "2");
NUnit.Framework.Assert.AreEqual(tss3.previous.Peek(), "1");
NUnit.Framework.Assert.AreEqual(tss3.Peek(), "2");
TreeShapedStack <string> tss4 = tss3.Push("4");
NUnit.Framework.Assert.AreEqual(tss4.Peek(), "4");
NUnit.Framework.Assert.AreEqual(tss4.Peek(), "4");
NUnit.Framework.Assert.AreEqual(tss4.previous.Peek(), "2");
tss4 = tss4.Pop();
NUnit.Framework.Assert.AreEqual(tss4.Peek(), "2");
tss4 = tss4.Pop();
NUnit.Framework.Assert.AreEqual(tss4.Peek(), "1");
tss4 = tss4.Pop();
NUnit.Framework.Assert.AreEqual(tss4.size, 0);
}
public virtual void TestEquals()
{
TreeShapedStack <string> t1 = new TreeShapedStack <string>();
t1 = t1.Push("foo");
t1 = t1.Push("bar");
t1 = t1.Push("bar");
t1 = t1.Push("diet");
t1 = t1.Push("coke");
TreeShapedStack <string> t2 = new TreeShapedStack <string>();
t2 = t2.Push("foo");
t2 = t2.Push("bar");
t2 = t2.Push("bar");
t2 = t2.Push("diet");
t2 = t2.Push("coke");
TreeShapedStack <string> t3 = t2.Pop().Push("pepsi");
NUnit.Framework.Assert.AreEqual(t1, t2);
NUnit.Framework.Assert.IsFalse(t1.Pop().Equals(t2));
NUnit.Framework.Assert.IsFalse(t2.Pop().Equals(t1));
NUnit.Framework.Assert.IsFalse(t2.Equals(t3));
}