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// Copyright 2009-2022 Josh Close
// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
// https://github.com/JoshClose/CsvHelper
using CsvHelper.Tests.Mocks;
using Xunit;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Threading;
using System;
using System.Linq;
namespace CsvHelper.Tests.Async
{
public class ReadingTests
{
[Fact]
public async Task ReadingTest()
{
var parser = new ParserMock
{
{ "Id", "Name" },
{ "1", "one" },
{ "2", "two" },
null
};
using (var csv = new CsvReader(parser))
{
var records = new List<Simple>();
await csv.ReadAsync();
csv.ReadHeader();
while (await csv.ReadAsync())
{
records.Add(csv.GetRecord<Simple>());
}
Assert.Equal(2, records.Count);
var record = records[0];
Assert.Equal(1, record.Id);
Assert.Equal("one", record.Name);
record = records[1];
Assert.Equal(2, record.Id);
Assert.Equal("two", record.Name);
}
}
#if NETCOREAPP
[Fact]
public async Task GetRecordsTest()
{
var parser = new ParserMock
{
{ "Id", "Name" },
{ "1", "one" },
{ "2", "two" },
null
};
using (var csv = new CsvReader(parser))
{
var records = csv.GetRecordsAsync<Simple>().GetAsyncEnumerator();
await records.MoveNextAsync();
Assert.Equal(1, records.Current.Id);
Assert.Equal("one", records.Current.Name);
await records.MoveNextAsync();
Assert.Equal(2, records.Current.Id);
Assert.Equal("two", records.Current.Name);
}
}
[Fact]
public async Task GetRecordsTestCanceled()
{
var parser = new ParserMock
{
{ "Id", "Name" },
{ "1", "one" },
{ "2", "two" },
null
};
using (var source = new CancellationTokenSource())
using (var csv = new CsvReader(parser))
{
source.Cancel();
var records = csv.GetRecordsAsync<Simple>(source.Token).GetAsyncEnumerator();
await Assert.ThrowsAsync<OperationCanceledException>(async () => await records.MoveNextAsync());
}
}
#endif
private class Simple
{
public int Id { get; set; }
public string Name { get; set; }
}
}
}
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