public void CanReadMultipleWrittenDataFromSameStream()
{
const int iterations = 10;
for (int i = 0; i < iterations; ++i)
{
using (var writer = new PersistedDataWriter(stream, dimensions, this.streamManager))
{
writer.WriteData(AnyCounterName, AnyStart, AnyEnd, (uint)data.Count, AnySources, data);
}
}
stream.Position = 0;
using (var reader = new PersistedDataReader(stream, this.streamManager))
{
for (int i = 0; i < iterations; ++i)
{
Assert.IsTrue(reader.ReadDataHeader());
Assert.AreEqual(reader.Header.Name, "/Foo");
Assert.AreEqual((uint)data.Count, reader.Header.DataCount);
reader.ReadData <InternalHitCount>(
(key, value) => Assert.AreEqual(AnyDataValue, value.HitCount));
}
}
}
public void ReadingTruncatedDataThrowsPersistedDataException()
{
using (var writer = new PersistedDataWriter(stream, dimensions, this.streamManager))
{
writer.WriteData(AnyCounterName, AnyStart, AnyEnd, (uint)data.Count, AnySources, data);
}
for (int i = (int)stream.Length / 2; i >= 0; --i)
{
var buffer = new byte[i];
Buffer.BlockCopy(stream.GetBuffer(), 0, buffer, 0, i);
using (var truncatedStream = new MemoryStream(buffer, false))
using (var reader = new PersistedDataReader(truncatedStream, this.streamManager))
{
try
{
// If we can't read the header it's fine.
if (reader.ReadDataHeader())
{
reader.ReadData <InternalHitCount>((key, value) => { });
Assert.Fail();
}
}
catch (PersistedDataException) {}
}
}
}
public void CanReadWrittenData()
{
using (var writer = new PersistedDataWriter(stream, dimensions, this.streamManager))
{
writer.WriteData(AnyCounterName, AnyStart, AnyEnd, (uint)data.Count, AnySources, data);
}
stream.Position = 0;
using (var reader = new PersistedDataReader(stream, this.streamManager))
{
Assert.IsTrue(reader.ReadDataHeader());
Assert.AreEqual("/Foo", reader.Header.Name);
Assert.AreEqual((uint)data.Count, reader.Header.DataCount);
reader.ReadData <InternalHitCount>(
(key, value) => Assert.AreEqual(AnyDataValue, value.HitCount));
}
}
private void ValidateStreamContents(Stream input)
{
var reader = new PersistedDataReader(input, this.memoryStreamManager);
Assert.IsTrue(reader.ReadDataHeader());
Assert.AreEqual((uint)3, reader.Header.DataCount);
Assert.AreEqual(AnyCounter, reader.Header.Name);
Assert.AreEqual(this.GetStartTime().ToUniversalTime(), reader.StartTime);
Assert.AreEqual(this.GetEndTime().ToUniversalTime(), reader.EndTime);
reader.ReadData <InternalHitCount>(
(key, data) =>
{
bool allDimensionsProvided;
if (
key.Matches(this.dimensionSet.CreateKey(new DimensionSpecification {
{ AnyDimension, "a" }
},
out allDimensionsProvided)))
{
Assert.AreEqual((ulong)1, data.HitCount);
}
else if (
key.Matches(this.dimensionSet.CreateKey(
new DimensionSpecification {
{ AnyDimension, "b" }
}, out allDimensionsProvided)))
{
Assert.AreEqual((ulong)2, data.HitCount);
}
else if (
key.Matches(
this.dimensionSet.CreateKey(new DimensionSpecification {
{ AnyDimension, "c" }
},
out allDimensionsProvided)))
{
Assert.AreEqual((ulong)1, data.HitCount);
}
else
{
Assert.Fail("Unexpected data found!");
}
});
}
public void CanReadWrittenData()
{
using (var writer = new PersistedDataWriter(stream, dimensions, this.streamManager))
{
writer.WriteData(AnyCounterName, AnyStart, AnyEnd, (uint)data.Count, AnySources, data);
}
stream.Position = 0;
using (var reader = new PersistedDataReader(stream, this.streamManager))
{
Assert.IsTrue(reader.ReadDataHeader());
Assert.AreEqual("/Foo", reader.Header.Name);
Assert.AreEqual((uint)data.Count, reader.Header.DataCount);
reader.ReadData<InternalHitCount>(
(key, value) => Assert.AreEqual(AnyDataValue, value.HitCount));
}
}
public void CanReadMultipleWrittenDataFromSameStream()
{
const int iterations = 10;
for (int i = 0; i < iterations; ++i)
{
using (var writer = new PersistedDataWriter(stream, dimensions, this.streamManager))
{
writer.WriteData(AnyCounterName, AnyStart, AnyEnd, (uint)data.Count, AnySources, data);
}
}
stream.Position = 0;
using (var reader = new PersistedDataReader(stream, this.streamManager))
{
for (int i = 0; i < iterations; ++i)
{
Assert.IsTrue(reader.ReadDataHeader());
Assert.AreEqual(reader.Header.Name, "/Foo");
Assert.AreEqual((uint)data.Count, reader.Header.DataCount);
reader.ReadData<InternalHitCount>(
(key, value) => Assert.AreEqual(AnyDataValue, value.HitCount));
}
}
}
public void ReadingTruncatedDataThrowsPersistedDataException()
{
using (var writer = new PersistedDataWriter(stream, dimensions, this.streamManager))
{
writer.WriteData(AnyCounterName, AnyStart, AnyEnd, (uint)data.Count, AnySources, data);
}
for (int i = (int)stream.Length / 2; i >= 0; --i)
{
var buffer = new byte[i];
Buffer.BlockCopy(stream.GetBuffer(), 0, buffer, 0, i);
using (var truncatedStream = new MemoryStream(buffer, false))
using (var reader = new PersistedDataReader(truncatedStream, this.streamManager))
{
try
{
// If we can't read the header it's fine.
if (reader.ReadDataHeader())
{
reader.ReadData<InternalHitCount>((key, value) => { });
Assert.Fail();
}
}
catch (PersistedDataException) {}
}
}
}
private void ValidateStreamContents(Stream input)
{
var reader = new PersistedDataReader(input, this.memoryStreamManager);
Assert.IsTrue(reader.ReadDataHeader());
Assert.AreEqual((uint)3, reader.Header.DataCount);
Assert.AreEqual(AnyCounter, reader.Header.Name);
Assert.AreEqual(this.GetStartTime().ToUniversalTime(), reader.StartTime);
Assert.AreEqual(this.GetEndTime().ToUniversalTime(), reader.EndTime);
reader.ReadData<InternalHitCount>(
(key, data) =>
{
bool allDimensionsProvided;
if (
key.Matches(this.dimensionSet.CreateKey(new DimensionSpecification {{AnyDimension, "a"}},
out allDimensionsProvided)))
{
Assert.AreEqual((ulong)1, data.HitCount);
}
else if (
key.Matches(this.dimensionSet.CreateKey(
new DimensionSpecification {{AnyDimension, "b"}}, out allDimensionsProvided)))
{
Assert.AreEqual((ulong)2, data.HitCount);
}
else if (
key.Matches(
this.dimensionSet.CreateKey(new DimensionSpecification {{AnyDimension, "c"}},
out allDimensionsProvided)))
{
Assert.AreEqual((ulong)1, data.HitCount);
}
else
{
Assert.Fail("Unexpected data found!");
}
});
}