private static void AssertRead(IList <string> lines)
{
using (var r = new StringListReader(lines)) {
int charno = 0;
foreach (var expected in lines.SelectMany(s => s.AsEnumerable()))
{
charno += 1;
var actual = r.Read();
Assert.AreEqual((int)expected, actual, $"Character #{charno}");
}
Assert.IsTrue(r.Read() < 0, "Did not reach EOF");
}
}
private static void AssertReadLines(IList <string> lines)
{
using (var r = new StringListReader(lines)) {
int lineno = 0;
foreach (var expected in lines)
{
lineno += 1;
var actual = r.ReadLine();
Assert.AreEqual(expected, actual, $"Line #{lineno}");
}
Assert.IsNull(r.ReadLine(), "Did not reach EOF");
}
}
public void ReadBlockTest()
{
using (var r = new StringListReader(new[] { "0123456789", "ABCDEFGHIJ" })) {
var buffer = new char[7];
Assert.AreEqual(7, r.ReadBlock(buffer, 0, 7));
Assert.AreEqual("0123456", ToString(buffer));
Assert.AreEqual(7, r.ReadBlock(buffer, 0, 7));
Assert.AreEqual("789ABCD", ToString(buffer));
Assert.AreEqual(6, r.ReadBlock(buffer, 0, 7));
Assert.AreEqual("EFGHIJ", ToString(buffer.Take(6)));
}
}
public void ReadToEndTest()
{
using (var r = new StringListReader(new[] { "A", "B", "C" })) {
Assert.AreEqual("ABC", r.ReadToEndWithoutAssert());
}
using (var r = new StringListReader(new[] { "A", "B", "C" })) {
Assert.AreEqual('A', r.Read());
Assert.AreEqual("BC", r.ReadToEndWithoutAssert());
}
using (var r = new StringListReader(new[] { "A", "B", "C" })) {
Assert.AreEqual('A', r.Peek());
Assert.AreEqual("ABC", r.ReadToEndWithoutAssert());
}
}
public void PartialReadTest()
{
using (var r = new StringListReader(new[] { "0123456789", "ABCDEFGHIJ" })) {
var buffer = new char[7];
Assert.AreEqual(7, r.Read(buffer, 0, 7));
Assert.AreEqual("0123456", ToString(buffer));
// We do not get a full read here, by design
Assert.AreEqual(3, r.Read(buffer, 0, 7));
Assert.AreEqual("789", ToString(buffer.Take(3)));
Assert.AreEqual(7, r.Read(buffer, 0, 7));
Assert.AreEqual("ABCDEFG", ToString(buffer));
// We do not get a full read here, by design
Assert.AreEqual(3, r.Read(buffer, 0, 7));
Assert.AreEqual("HIJ", ToString(buffer.Take(3)));
}
}
public void PeekTest()
{
global::System.Char[] buffer = new char[10];
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Peek());
Assert.AreEqual('A', r.Peek());
Assert.AreEqual('A', r.Read());
}
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Peek());
Assert.AreEqual(2, r.Read(buffer, 0, 5));
Assert.AreEqual('A', buffer[0]);
Assert.AreEqual('B', buffer[1]);
}
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Read());
Assert.AreEqual('B', r.Peek());
// Read after peeking the last char in a line will get us
// the next line too.
Assert.AreEqual(3, r.Read(buffer, 0, 5));
Assert.AreEqual('B', buffer[0]);
Assert.AreEqual('C', buffer[1]);
Assert.AreEqual('D', buffer[2]);
}
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Read());
Assert.AreEqual('B', r.Peek());
// Read after peeking the last char in a line will get us
// the next line too.
Assert.AreEqual("BCD", r.ReadLine());
}
}
