public void TestDatsetRecordwiseSliceFetch()
{
RedirectGlobalsToTempPath();
string filename = nameof(TestDatsetRecordwiseSliceFetch) + "test.dat";
CreateCsvTempFile(filename);
CsvRecordExtractor extractor = new CsvRecordReader(new FileSource(filename)).Extractor("inputs", 0, "targets", 3);
ExtractedDataset dataset = new ExtractedDataset("name", 3, extractor);
DatasetRecordwiseSlice slice = new DatasetRecordwiseSlice(dataset, 0.1, 0.6);
Assert.AreEqual(new float[] { 5.1f, 4.9f }, slice.FetchBlock(0, new CpuFloat32Handler())["inputs"].GetDataAs <float>().GetValuesArrayAs <float>(0, 2));
extractor.Reader?.Dispose();
dataset.Dispose();
DeleteTempFile(filename);
}
public void TestDatasetRecordwiseSliceCreate()
{
RedirectGlobalsToTempPath();
string filename = nameof(TestDatasetRecordwiseSliceCreate) + "test.dat";
CreateCsvTempFile(filename);
CsvRecordExtractor extractor = new CsvRecordReader(new FileSource(filename)).Extractor("inputs", 1, 2, "targets", 3);
ExtractedDataset dataset = new ExtractedDataset("name", ExtractedDataset.BlockSizeAuto, extractor);
Assert.Throws <ArgumentNullException>(() => new DatasetRecordwiseSlice(null, 0.0, 1.0));
Assert.Throws <ArgumentException>(() => new DatasetRecordwiseSlice(dataset, -0.2, 1.0));
Assert.Throws <ArgumentException>(() => new DatasetRecordwiseSlice(dataset, 0.7, -1.0));
Assert.Throws <ArgumentException>(() => new DatasetRecordwiseSlice(dataset, 0.7, 0.6));
DatasetRecordwiseSlice slice = new DatasetRecordwiseSlice(dataset, 0.1, 0.6);
Assert.AreSame(dataset, slice.UnderlyingDataset);
Assert.AreEqual(0.1, slice.ShareOffset);
Assert.AreEqual(0.6, slice.Share);
DeleteTempFile(filename);
}
