public void TestNextPrev()
{
Doskey dosKey = new Doskey(3);
dosKey.Record("in1");
dosKey.Record("in2");
dosKey.Record("in3");
dosKey.Record("in4");
dosKey.Record("in5");
dosKey.Record("in6");
string record1 = dosKey.TryGetNext();
string record2 = dosKey.TryGetPrev();
string record3 = dosKey.TryGetNext();
string record4 = dosKey.TryGetPrev();
string record5 = dosKey.TryGetNext();
string record6 = dosKey.TryGetPrev();
string record7 = dosKey.TryGetPrev();
string record8 = dosKey.TryGetPrev();
NUnit.Framework.Assert.AreEqual(null, record1);
NUnit.Framework.Assert.AreEqual("in6", record2);
NUnit.Framework.Assert.AreEqual(null, record3);
NUnit.Framework.Assert.AreEqual("in5", record4);
NUnit.Framework.Assert.AreEqual("in6", record5);
NUnit.Framework.Assert.AreEqual("in5", record6);
NUnit.Framework.Assert.AreEqual("in4", record7);
NUnit.Framework.Assert.AreEqual(null, record8);
}
public void TestNext()
{
var dosKey = new Doskey(10);
dosKey.Record("in1");
dosKey.Record("in2");
dosKey.Record("in3");
var record1 = dosKey.TryGetPrev();
var record2 = dosKey.TryGetPrev();
var record3 = dosKey.TryGetPrev();
var record4 = dosKey.TryGetPrev();
var record5 = dosKey.TryGetNext();
var record6 = dosKey.TryGetNext();
var record7 = dosKey.TryGetNext();
var record8 = dosKey.TryGetNext();
NUnit.Framework.Assert.AreEqual("in3", record1);
NUnit.Framework.Assert.AreEqual("in2", record2);
NUnit.Framework.Assert.AreEqual("in1", record3);
NUnit.Framework.Assert.AreEqual(null, record4);
NUnit.Framework.Assert.AreEqual("in2", record5);
NUnit.Framework.Assert.AreEqual("in3", record6);
NUnit.Framework.Assert.AreEqual(null, record7);
NUnit.Framework.Assert.AreEqual(null, record8);
}
public void TestPrevInit()
{
Doskey dosKey = new Doskey(10);
string record1 = dosKey.TryGetPrev();
NUnit.Framework.Assert.AreEqual(null, record1);
}
public void TestPrevLimit()
{
Doskey dosKey = new Doskey(2);
dosKey.Record("in1");
dosKey.Record("in2");
dosKey.Record("in3");
string record1 = dosKey.TryGetPrev();
string record2 = dosKey.TryGetPrev();
string record3 = dosKey.TryGetPrev();
string record4 = dosKey.TryGetPrev();
NUnit.Framework.Assert.AreEqual("in3", record1);
NUnit.Framework.Assert.AreEqual("in2", record2);
NUnit.Framework.Assert.AreEqual(null, record3);
NUnit.Framework.Assert.AreEqual(null, record4);
}