public void ReturnsAppropriatelySizedChunks()
{
// Arrange
MemoryStream memoryStream = new MemoryStream();
StreamWriter streamWriter = new StreamWriter(memoryStream);
streamWriter.Write("abcdefghijklmnopqrstuvwxyz");
streamWriter.Flush();
memoryStream.Position = 0;
int chunkSize = 2;
SerialStreamAdapter sut = new SerialStreamAdapter(memoryStream, chunkSize);
// Act/Assert
byte[] buffer = new byte[4096];
int count1 = sut.Read(buffer, 0, 4096);
Assert.AreEqual('a', (char)buffer[0]);
Assert.AreEqual('b', (char)buffer[1]);
Assert.AreEqual(chunkSize, count1);
int count2 = sut.Read(buffer, 0, 4096);
Assert.AreEqual('c', (char)buffer[0]);
Assert.AreEqual('d', (char)buffer[1]);
Assert.AreEqual(chunkSize, count2);
int count3 = sut.Read(buffer, 0, 4096);
Assert.AreEqual('e', (char)buffer[0]);
Assert.AreEqual('f', (char)buffer[1]);
Assert.AreEqual(chunkSize, count3);
}
public void AllowsBigRowsAndQuotesWithinQuotesWithManyChunks()
{
string fakeCsvRow = "1,\"My \"\"\"\"name\"\"\"\" is \"\"X\"\"\",4";
Stream csvStream = CreateMemoryStream(fakeCsvRow);
Stream chunkedStream = new SerialStreamAdapter(csvStream, 2);
ICsvRowTokenizer sut = new CsvRowTokenizer(chunkedStream);
string[] tokens = sut.ReadAllRows().First();
Assert.AreEqual(3, tokens.Length);
Assert.AreEqual("1", tokens[0]);
Assert.AreEqual("My \"\"name\"\" is \"X\"", tokens[1]);
Assert.AreEqual("4", tokens[2]);
}
public void CanReadWithManyChunks()
{
string fakeCsvRow = "\"\"\"\"\"\"";
Stream csvStream = CreateMemoryStreamNoLastNewline(fakeCsvRow);
Stream manyChunksStream = new SerialStreamAdapter(csvStream, 1);
ICsvRowTokenizer sut = new CsvRowTokenizer(manyChunksStream);
string[] tokens = sut.ReadAllRows().First();
Assert.AreEqual(1, tokens.Length);
Assert.AreEqual("\"\"", tokens[0]);
}
public void CanReadMultipleLinesWithChunkedStream()
{
string fakeCsvRow = "1\r\n2\r\n3";
Stream csvStream = CreateMemoryStreamNoLastNewline(fakeCsvRow);
Stream chunkedStream = new SerialStreamAdapter(csvStream, 1);
ICsvRowTokenizer sut = new CsvRowTokenizer(chunkedStream);
string[][] rows = sut.ReadAllRows().ToArray();
Assert.AreEqual(3, rows.Length);
Assert.AreEqual("1", rows[0].Single());
Assert.AreEqual("2", rows[1].Single());
Assert.AreEqual("3", rows[2].Single());
}
public void AllowsQuotesWithinQuotesWithManyChunks2()
{
string fakeCsvRow = ",\"\"\"\"\"\",";
Stream csvStream = CreateMemoryStream(fakeCsvRow);
Stream serialStream = new SerialStreamAdapter(csvStream, 1);
ICsvRowTokenizer sut = new CsvRowTokenizer(serialStream);
string[] tokens = sut.ReadAllRows().First();
Assert.AreEqual(3, tokens.Length);
Assert.AreEqual("", tokens[0]);
Assert.AreEqual("\"\"", tokens[1]);
Assert.AreEqual("", tokens[2]);
}
public void AllowsMissingLastNewlineWithLastCharQuoteWithManyChunks()
{
string fakeCsvRow = "1,2,\"3\"";
Stream csvStream = CreateMemoryStreamNoLastNewline(fakeCsvRow);
Stream manyChunksStream = new SerialStreamAdapter(csvStream, 1);
ICsvRowTokenizer sut = new CsvRowTokenizer(manyChunksStream);
string[] tokens = sut.ReadAllRows().First();
Assert.AreEqual(3, tokens.Length);
Assert.AreEqual("1", tokens[0]);
Assert.AreEqual("2", tokens[1]);
Assert.AreEqual("3", tokens[2]);
}
