public void Iterator_Index()
{
string value = "01234567890123456789";
byte[] bytes = Encoding.ASCII.GetBytes(value);
var memoryStream = new MemoryStream();
memoryStream.Write(bytes, 0, bytes.Length);
var input = new StreamInputIterator(memoryStream);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Length == value.Length);
for (int i = 0; i < value.Length; i++)
{
Assert.IsTrue(input.Index == i);
Assert.IsTrue(input.Current() == value[i]);
if (i < value.Length - 1)
{
Assert.IsTrue(input.Next() == value[i + 1]);
}
}
for (int i = value.Length - 1; i >= 0; i--)
{
Assert.IsTrue(input.Index == i);
Assert.IsTrue(input.Current() == value[i]);
if (i > 0)
{
Assert.IsTrue(input.Previous() == value[i - 1]);
}
}
}
public void Iterator_Index()
{
string value = "01234567890123456789";
byte[] bytes = Encoding.ASCII.GetBytes(value);
var memoryStream = new MemoryStream();
memoryStream.Write(bytes, 0, bytes.Length);
var input = new StreamInputIterator(memoryStream);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Length == value.Length);
for (int i = 0; i < value.Length; i++)
{
Assert.IsTrue(input.Index == i);
Assert.IsTrue(input.Current() == value[i]);
if (i < value.Length - 1)
{
Assert.IsTrue(input.Next() == value[i + 1]);
}
}
for (int i = value.Length - 1; i >= 0; i--)
{
Assert.IsTrue(input.Index == i);
Assert.IsTrue(input.Current() == value[i]);
if (i > 0)
{
Assert.IsTrue(input.Previous() == value[i - 1]);
}
}
}
public void Iterator_OutofRange()
{
var memoryStream = new MemoryStream();
var input = new StreamInputIterator(memoryStream);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Length == 0);
Assert.IsTrue(input.Current() == -1);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Next() == -1);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Previous() == -1);
Assert.IsTrue(input.Index == 0);
}
public void Iterator_Initialization()
{
string value = "01234567890123456789";
byte[] bytes = Encoding.ASCII.GetBytes(value);
var memoryStream = new MemoryStream();
memoryStream.Write(bytes, 0, bytes.Length);
var input = new StreamInputIterator(memoryStream);
// tests that iterator begins at zero based index
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Length == 20);
Assert.IsTrue(input.Current() == '0');
Assert.IsTrue(input.Next() == '1');
Assert.IsTrue(input.Previous() == '0');
Assert.IsTrue(Encoding.ASCII.GetBytes(value).SequenceEqual(input.Text(0, 19)),
"Text unable to return complete input.");
}
public void Iterator_GetText_Limit()
{
string value = "01234567890123456789";
byte[] bytes = Encoding.ASCII.GetBytes(value);
var memoryStream = new MemoryStream();
memoryStream.Write(bytes, 0, bytes.Length);
var input = new StreamInputIterator(memoryStream);
Assert.IsTrue(Encoding.ASCII.GetBytes("0").SequenceEqual(input.Text(0, 0)), "Text unable to return first character.");
Assert.IsTrue(Encoding.ASCII.GetBytes("9").SequenceEqual(input.Text(19, 19)), "Text unable to return last character.");
Assert.IsTrue(Encoding.ASCII.GetBytes("01").SequenceEqual(input.Text(0, 1)),
"Text unable to return specified start and end characters inclusive.");
try
{
input.Text(19, 0);
Assert.Fail("Start must be <= End");
}
catch (IteratorUsageException e)
{
}
}
public void Iterator_GetText_Limit()
{
string value = "01234567890123456789";
byte[] bytes = Encoding.ASCII.GetBytes(value);
var memoryStream = new MemoryStream();
memoryStream.Write(bytes, 0, bytes.Length);
var input = new StreamInputIterator(memoryStream);
Assert.IsTrue(Encoding.ASCII.GetBytes("0").SequenceEqual(input.Text(0, 0)), "Text unable to return first character.");
Assert.IsTrue(Encoding.ASCII.GetBytes("9").SequenceEqual(input.Text(19, 19)), "Text unable to return last character.");
Assert.IsTrue(Encoding.ASCII.GetBytes("01").SequenceEqual(input.Text(0, 1)),
"Text unable to return specified start and end characters inclusive.");
try
{
input.Text(19, 0);
Assert.Fail("Start must be <= End");
}
catch (IteratorUsageException e)
{
}
}
public void Iterator_OutofRange()
{
var memoryStream = new MemoryStream();
var input = new StreamInputIterator(memoryStream);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Length == 0);
Assert.IsTrue(input.Current() == -1);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Next() == -1);
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Previous() == -1);
Assert.IsTrue(input.Index == 0);
}
public void Iterator_Initialization()
{
string value = "01234567890123456789";
byte[] bytes = Encoding.ASCII.GetBytes(value);
var memoryStream = new MemoryStream();
memoryStream.Write(bytes, 0, bytes.Length);
var input = new StreamInputIterator(memoryStream);
// tests that iterator begins at zero based index
Assert.IsTrue(input.Index == 0);
Assert.IsTrue(input.Length == 20);
Assert.IsTrue(input.Current() == '0');
Assert.IsTrue(input.Next() == '1');
Assert.IsTrue(input.Previous() == '0');
Assert.IsTrue(Encoding.ASCII.GetBytes(value).SequenceEqual(input.Text(0, 19)),
"Text unable to return complete input.");
}
