public void EnumeratesLines()
{
var lines = Enumerable.Range(0, 10).Select(i => $"line {i}").ToArray();
var content = string.Join(Environment.NewLine, lines);
using (var streamReader = new StreamReader(new MemoryStream(Encoding.Default.GetBytes(content))))
{
var enumerable = new StreamReaderEnumerable(streamReader);
var actualLines = enumerable.ToList();
CollectionAssert.AreEqual(lines, actualLines);
}
}
private static CorporateFactorProvider GetFactorFile_LODE20191127()
{
const string factorFileContents = @"
19980102,1,5,8.5,qq
20171109,1,5,0.12,qq
20501231,1,1,0,qq
";
DateTime? factorFileMinimumDate;
var reader = new StreamReader(factorFileContents.ToStream());
var enumerable = new StreamReaderEnumerable(reader).Where(line => line.Length > 0);
var factorFileRows = CorporateFactorRow.Parse(enumerable, out factorFileMinimumDate);
return(new CorporateFactorProvider("lode", factorFileRows, factorFileMinimumDate));
}
public void GetEnumerator_Should_Return_A_New_Instance_Of_StreamReaderEnumerator_With_Same_BaseStreamReader_And_DisposeBehavior()
{
var disposeBehavior = StreamReaderEnumeratorDisposeBehavior.CloseStreamReader;
var sut = new StreamReaderEnumerable(this.testBag.StreamReader, disposeBehavior);
var enumerator = ((IEnumerable)sut).GetEnumerator();
enumerator.Should().NotBeNull();
enumerator.Should().BeOfType<StreamReaderEnumerator>();
var castedEnumerator = ((StreamReaderEnumerator)enumerator);
castedEnumerator.BaseStreamReader.Should().Be(this.testBag.StreamReader);
castedEnumerator.DisposeBehavior.Should().Be(disposeBehavior);
}
public void DisposesWhenEnumerationIsCompleted()
{
var disposable = new TestDisposable();
var memoryStream = new TestMemoryStream(Encoding.Default.GetBytes("line1\r\nline2\r\nline3"));
var streamReader = new TestStreamReader(memoryStream);
var enumerable = new StreamReaderEnumerable(streamReader, disposable);
// complete enumeration
var lines = enumerable.ToList();
Assert.IsTrue(streamReader.DisposeCalled);
Assert.IsTrue(streamReader.DisposeCalledDisposingValue);
Assert.IsTrue(memoryStream.DisposeCalled);
Assert.IsTrue(memoryStream.DisposeCalledDisposingValue);
Assert.IsTrue(disposable.DisposeCalled);
}
private static CorporateFactorProvider GetFactorFile_AAPL2018_05_11()
{
const string factorFileContents = @"
19980102,0.8893653,0.0357143,16.25
20000620,0.8893653,0.0357143,101
20050225,0.8893653,0.0714286,88.97
20120808,0.8893653,0.142857,619.85
20121106,0.8931837,0.142857,582.85
20130206,0.8972636,0.142857,457.285
20130508,0.9024937,0.142857,463.71
20130807,0.908469,0.142857,464.94
20131105,0.9144679,0.142857,525.58
20140205,0.9198056,0.142857,512.59
20140507,0.9253111,0.142857,592.34
20140606,0.9304792,0.142857,645.57
20140806,0.9304792,1,94.96
20141105,0.9351075,1,108.86
20150204,0.9391624,1,119.55
20150506,0.9428692,1,125.085
20150805,0.9468052,1,115.4
20151104,0.9510909,1,122.01
20160203,0.9551617,1,96.34
20160504,0.9603451,1,94.19
20160803,0.9661922,1,105.8
20161102,0.9714257,1,111.6
20170208,0.9764128,1,132.04
20170510,0.9806461,1,153.26
20170809,0.9846939,1,161.1
20171109,0.9885598,1,175.87
20180208,0.9921138,1,155.16
20180510,0.9961585,1,190.03
20501231,1,1,0
";
DateTime?factorFileMinimumDate;
var reader = new StreamReader(factorFileContents.ToStream());
var enumerable = new StreamReaderEnumerable(reader).Where(line => line.Length > 0);
var factorFileRows = CorporateFactorRow.Parse(enumerable, out factorFileMinimumDate);
return(new CorporateFactorProvider("aapl", factorFileRows, factorFileMinimumDate));
}
// AAPL experiences a 0.73 dividend distribution on 2018.05.11
private static CorporateFactorProvider GetFactorFile_AAPL2018_05_08()
{
const string factorFileContents = @"
19980102,0.8927948,0.0357143,16.25
20000620,0.8927948,0.0357143,101
20050225,0.8927948,0.0714286,88.97
20120808,0.8927948,0.142857,619.85
20121106,0.8966279,0.142857,582.85
20130206,0.9007235,0.142857,457.285
20130508,0.9059737,0.142857,463.71
20130807,0.9119721,0.142857,464.94
20131105,0.9179942,0.142857,525.58
20140205,0.9233525,0.142857,512.59
20140507,0.9288793,0.142857,592.34
20140606,0.9340673,0.142857,645.57
20140806,0.9340673,1,94.96
20141105,0.9387135,1,108.86
20150204,0.942784,1,119.55
20150506,0.9465051,1,125.085
20150805,0.9504563,1,115.4
20151104,0.9547586,1,122.01
20160203,0.9588451,1,96.34
20160504,0.9640485,1,94.19
20160803,0.9699181,1,105.8
20161102,0.9751718,1,111.6
20170208,0.9801781,1,132.04
20170510,0.9844278,1,153.26
20170809,0.9884911,1,161.1
20171109,0.992372,1,175.87
20180208,0.9959397,1,155.16
20501231,1,1,0
";
DateTime?factorFileMinimumDate;
var reader = new StreamReader(factorFileContents.ToStream());
var enumerable = new StreamReaderEnumerable(reader).Where(line => line.Length > 0);
var factorFileRows = CorporateFactorRow.Parse(enumerable, out factorFileMinimumDate);
return(new CorporateFactorProvider("aapl", factorFileRows, factorFileMinimumDate));
}
public void BaseStreamReader_Should_Be_StreamReader_Passed_To_Constructor()
{
var sut = new StreamReaderEnumerable(this.testBag.StreamReader);
sut.BaseStreamReader.Should().Be(this.testBag.StreamReader);
}
