dotnet-installer/test/Microsoft.DotNet.Tools.Tests.Utilities/Assertions/DirectoryInfoAssertions.cs

94 lines
3.8 KiB
C#

// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using FluentAssertions;
using FluentAssertions.Execution;
using Microsoft.DotNet.Cli.Utils;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
namespace Microsoft.DotNet.Tools.Test.Utilities
{
public class DirectoryInfoAssertions
{
private DirectoryInfo _dirInfo;
public DirectoryInfoAssertions(DirectoryInfo dir)
{
_dirInfo = dir;
}
public DirectoryInfo DirectoryInfo => _dirInfo;
public AndConstraint<DirectoryInfoAssertions> Exist()
{
Execute.Assertion.ForCondition(_dirInfo.Exists)
.FailWith("Expected directory {0} does not exist.", _dirInfo.FullName);
return new AndConstraint<DirectoryInfoAssertions>(this);
}
public AndConstraint<DirectoryInfoAssertions> HaveFile(string expectedFile)
{
var file = _dirInfo.EnumerateFiles(expectedFile, SearchOption.TopDirectoryOnly).SingleOrDefault();
Execute.Assertion.ForCondition(file != null)
.FailWith("Expected File {0} cannot be found in directory {1}.", expectedFile, _dirInfo.FullName);
return new AndConstraint<DirectoryInfoAssertions>(this);
}
public AndConstraint<DirectoryInfoAssertions> NotHaveFile(string expectedFile)
{
var file = _dirInfo.EnumerateFiles(expectedFile, SearchOption.TopDirectoryOnly).SingleOrDefault();
Execute.Assertion.ForCondition(file == null)
.FailWith("File {0} should not be found in directory {1}.", expectedFile, _dirInfo.FullName);
return new AndConstraint<DirectoryInfoAssertions>(this);
}
public AndConstraint<DirectoryInfoAssertions> HaveFiles(IEnumerable<string> expectedFiles)
{
foreach (var expectedFile in expectedFiles)
{
HaveFile(expectedFile);
}
return new AndConstraint<DirectoryInfoAssertions>(this);
}
public AndConstraint<DirectoryInfoAssertions> NotHaveFiles(IEnumerable<string> expectedFiles)
{
foreach (var expectedFile in expectedFiles)
{
NotHaveFile(expectedFile);
}
return new AndConstraint<DirectoryInfoAssertions>(this);
}
public AndConstraint<DirectoryInfoAssertions> HaveDirectory(string expectedDir)
{
var dir = _dirInfo.EnumerateDirectories(expectedDir, SearchOption.TopDirectoryOnly).SingleOrDefault();
Execute.Assertion.ForCondition(dir != null)
.FailWith("Expected directory {0} cannot be found inside directory {1}.", expectedDir, _dirInfo.FullName);
return new AndConstraint<DirectoryInfoAssertions>(new DirectoryInfoAssertions(dir));
}
public AndConstraint<DirectoryInfoAssertions> OnlyHaveFiles(IEnumerable<string> expectedFiles)
{
var actualFiles = _dirInfo.EnumerateFiles("*", SearchOption.TopDirectoryOnly).Select(f => f.Name);
var missingFiles = Enumerable.Except(expectedFiles, actualFiles);
var extraFiles = Enumerable.Except(actualFiles, expectedFiles);
var nl = Environment.NewLine;
Execute.Assertion.ForCondition(!missingFiles.Any())
.FailWith($"Following files cannot be found inside directory {_dirInfo.FullName} {nl} {string.Join(nl, missingFiles)}");
Execute.Assertion.ForCondition(!extraFiles.Any())
.FailWith($"Following extra files are found inside directory {_dirInfo.FullName} {nl} {string.Join(nl, extraFiles)}");
return new AndConstraint<DirectoryInfoAssertions>(this);
}
}
}