68 lines
2.5 KiB
C#
Executable File
68 lines
2.5 KiB
C#
Executable File
// Copyright 2017-2018 Alexander Luzgarev
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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namespace MatFileHandler.Tests
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{
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/// <summary>
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/// Abstract factory of test data.
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/// </summary>
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/// <typeparam name="TTestData">Type of test data.</typeparam>
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public abstract class AbstractTestDataFactory<TTestData>
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="AbstractTestDataFactory{TTestData}"/> class.
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/// </summary>
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/// <param name="dataDirectory">Directory with test files.</param>
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/// <param name="testFilenameConvention">A convention used to filter test files.</param>
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protected AbstractTestDataFactory(string dataDirectory, ITestFilenameConvention testFilenameConvention)
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{
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DataDirectory = dataDirectory;
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TestFilenameConvention = testFilenameConvention;
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}
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private string DataDirectory { get; }
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private ITestFilenameConvention TestFilenameConvention { get; }
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/// <summary>
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/// Get test data set by name.
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/// </summary>
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/// <param name="dataSet">Name of the data set.</param>
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/// <returns>Test data.</returns>
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public TTestData this[string dataSet] =>
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ReadTestData(FixPath(TestFilenameConvention.ConvertTestNameToFilename(dataSet)));
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/// <summary>
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/// Get a sequence of all test data sets in the factory.
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/// </summary>
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/// <returns>A sequence of data sets.</returns>
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public IEnumerable<TTestData> GetAllTestData()
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{
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var files = Directory.EnumerateFiles(DataDirectory).Where(TestFilenameConvention.FilterFile);
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foreach (var filename in files)
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{
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yield return ReadTestData(filename);
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}
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}
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/// <summary>
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/// Read test data from a stream.
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/// </summary>
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/// <param name="stream">Input stream.</param>
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/// <returns>Test data.</returns>
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protected abstract TTestData ReadDataFromStream(Stream stream);
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private string FixPath(string filename) => Path.Combine(DataDirectory, filename);
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private TTestData ReadTestData(string filename)
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{
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using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read))
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{
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return ReadDataFromStream(stream);
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}
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}
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}
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} |