public void Merge_Many_Many() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
double[] actual = p.Merge( new double[] { 1d, 2d, 3d, 4d }, new double[] { 1d, 2d, 3d, 4d } );
double[] expected = new double[] { 1d, 1d, 2d, 2d, 3d, 3d, 4d, 4d };
CollectionAssert.AreEqual( expected, actual );
}
public void Merge_Empty_One() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
double[] actual = p.Merge( new double[] { }, new double[] { 1d } );
double[] expected = new double[] { 1d };
CollectionAssert.AreEqual( expected, actual );
}
public void MergeWrite_One_Empty() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
p.MergeWrite( new double[] { 1d }, new double[] { } );
string expected = "1" + Environment.NewLine;
Assert.AreEqual( expected, writer.ToString() );
}
public void MergeWrite_Empty_Empty() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
p.MergeWrite( new double[] { }, new double[] { } );
string expected = "";
Assert.AreEqual( expected, writer.ToString() );
}
public void AddBlock_One_Write() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
p.AddBlock( new double[] { 1d, 5d, 3d, 4d }, true );
string expected = "1" + Environment.NewLine +
"3" + Environment.NewLine +
"4" + Environment.NewLine +
"5" + Environment.NewLine;
Assert.AreEqual( expected, writer.ToString() );
}
public void MergeWrite_Many_One() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
p.MergeWrite( new double[] { 1d, 2d, 3d, 4d }, new double[] { 1d } );
string expected = "1" + Environment.NewLine +
"1" + Environment.NewLine +
"2" + Environment.NewLine +
"3" + Environment.NewLine +
"4" + Environment.NewLine;
Assert.AreEqual( expected, writer.ToString() );
}
public void AddBlock_One_NoWrite() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
p.AddBlock( new double[] { 1d, 5d, 3d, 4d } );
Task.WaitAll( p.tasks.ToArray() );
double[] expected = new double[] { 1d, 3d, 4d, 5d };
double[] actual;
if( p.SortedBlocks.TryDequeue( out actual ) )
CollectionAssert.AreEqual( expected, actual );
else
Assert.Fail( "Could not dequeue" );
}
public void AddBlock_Five_Write() {
StringWriter writer = new StringWriter();
ParallelMergeSort p = new ParallelMergeSort( writer );
p.AddBlock( new double[] { 4d, 3d, 2d, 1d } );
p.AddBlock( new double[] { 8d, 7d, 6d, 5d } );
p.AddBlock( new double[] { 12d, 11d, 10d, 9d } );
p.AddBlock( new double[] { 16d, 15d, 14d, 13d } );
p.AddBlock( new double[] { 20d, 19d, 18d, 17d }, true );
string expected = "1" + Environment.NewLine +
"2" + Environment.NewLine +
"3" + Environment.NewLine +
"4" + Environment.NewLine +
"5" + Environment.NewLine +
"6" + Environment.NewLine +
"7" + Environment.NewLine +
"8" + Environment.NewLine +
"9" + Environment.NewLine +
"10" + Environment.NewLine +
"11" + Environment.NewLine +
"12" + Environment.NewLine +
"13" + Environment.NewLine +
"14" + Environment.NewLine +
"15" + Environment.NewLine +
"16" + Environment.NewLine +
"17" + Environment.NewLine +
"18" + Environment.NewLine +
"19" + Environment.NewLine +
"20" + Environment.NewLine;
Assert.AreEqual( expected, writer.ToString() );
}
/// <summary>
/// Po kontrole vsech argumentu nastava zpracovani vstupu
/// </summary>
/// <param name="reader"></param>
/// <param name="writer"></param>
internal static void ProcessFile(TextReader reader, TextWriter writer)
{
string line;
List<double> dataBlock = new List<double>( BlockSize );
ParallelMergeSort ps = new ParallelMergeSort( writer );
while( ( line = reader.ReadLine() ) != null )
{
double value;
if( !double.TryParse( line, out value ) )
throw new FormatException();
dataBlock.Add( value );
if( reader.Peek() == -1 )
{
ps.AddBlock( dataBlock.ToArray(), true );
dataBlock.Clear();
}
else if( dataBlock.Count == BlockSize )
{
ps.AddBlock( dataBlock.ToArray() );
dataBlock.Clear();
}
}
Task.WaitAll();
}
