MatFileHandler/MatFileHandler.Tests/MatFileReaderHdfTests.cs

122 lines
4.4 KiB
C#

using NUnit.Framework;
using System.IO;
namespace MatFileHandler.Tests
{
[TestFixture]
public class MatFileReaderHdfTests
{
private const string TestDirectory = "test-data";
/// <summary>
/// Test reading an ASCII-encoded string.
/// </summary>
[Test]
public void TestAscii()
{
var matFile = ReadHdfTestFile("ascii");
var arrayAscii = matFile["s"].Value as ICharArray;
Assert.That(arrayAscii, Is.Not.Null);
Assert.That(arrayAscii.Dimensions, Is.EqualTo(new[] { 1, 3 }));
Assert.That(arrayAscii.String, Is.EqualTo("abc"));
Assert.That(arrayAscii[2], Is.EqualTo('c'));
}
/// <summary>
/// Test reading a Unicode string.
/// </summary>
[Test]
public void TestUnicode()
{
var matFile = ReadHdfTestFile("unicode");
var arrayUnicode = matFile["s"].Value as ICharArray;
Assert.That(arrayUnicode, Is.Not.Null);
Assert.That(arrayUnicode.Dimensions, Is.EqualTo(new[] { 1, 2 }));
Assert.That(arrayUnicode.String, Is.EqualTo("必フ"));
Assert.That(arrayUnicode[0], Is.EqualTo('必'));
Assert.That(arrayUnicode[1], Is.EqualTo('フ'));
}
/// <summary>
/// Test reading a wide Unicode string.
/// </summary>
[Test]
public void TestUnicodeWide()
{
var matFile = ReadHdfTestFile("unicode-wide");
var arrayUnicodeWide = matFile["s"].Value as ICharArray;
Assert.That(arrayUnicodeWide, Is.Not.Null);
Assert.That(arrayUnicodeWide.Dimensions, Is.EqualTo(new[] { 1, 2 }));
Assert.That(arrayUnicodeWide.String, Is.EqualTo("🍆"));
}
/// <summary>
/// Test reading a two-dimensional double array.
/// </summary>
[Test]
public void TestMatrix()
{
var matFile = ReadHdfTestFile("matrix");
var matrix = matFile["matrix"].Value as IArrayOf<double>;
Assert.That(matrix.Dimensions, Is.EqualTo(new[] { 3, 2 }));
Assert.That(matrix.ConvertToDoubleArray(), Is.EqualTo(new[] { 1.0, 3.0, 5.0, 2.0, 4.0, 6.0 }));
Assert.That(matrix[0, 0], Is.EqualTo(1.0));
Assert.That(matrix[0, 1], Is.EqualTo(2.0));
Assert.That(matrix[1, 0], Is.EqualTo(3.0));
Assert.That(matrix[1, 1], Is.EqualTo(4.0));
Assert.That(matrix[2, 0], Is.EqualTo(5.0));
Assert.That(matrix[2, 1], Is.EqualTo(6.0));
}
/// <summary>
/// Test reading lower and upper limits of integer data types.
/// </summary>
[Test]
public void TestLimits()
{
var matFile = ReadHdfTestFile("limits");
IArray array;
array = matFile["int8_"].Value;
CheckLimits(array as IArrayOf<sbyte>, CommonData.Int8Limits);
Assert.That(array.ConvertToDoubleArray(), Is.EqualTo(new[] { -128.0, 127.0 }));
array = matFile["uint8_"].Value;
CheckLimits(array as IArrayOf<byte>, CommonData.UInt8Limits);
array = matFile["int16_"].Value;
CheckLimits(array as IArrayOf<short>, CommonData.Int16Limits);
array = matFile["uint16_"].Value;
CheckLimits(array as IArrayOf<ushort>, CommonData.UInt16Limits);
array = matFile["int32_"].Value;
CheckLimits(array as IArrayOf<int>, CommonData.Int32Limits);
array = matFile["uint32_"].Value;
CheckLimits(array as IArrayOf<uint>, CommonData.UInt32Limits);
array = matFile["int64_"].Value;
CheckLimits(array as IArrayOf<long>, CommonData.Int64Limits);
array = matFile["uint64_"].Value;
CheckLimits(array as IArrayOf<ulong>, CommonData.UInt64Limits);
}
private static void CheckLimits<T>(IArrayOf<T> array, T[] limits)
where T : struct
{
Assert.That(array, Is.Not.Null);
Assert.That(array.Dimensions, Is.EqualTo(new[] { 1, 2 }));
Assert.That(array.Data, Is.EqualTo(limits));
}
private static AbstractTestDataFactory<IMatFile> GetTests(string factoryName) =>
new MatTestDataFactory(Path.Combine(TestDirectory, factoryName));
private IMatFile ReadHdfTestFile(string testName)
{
return GetTests("hdf")[testName];
}
}
}