/
HostsServiceTest.cs
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/
HostsServiceTest.cs
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// Copyright (c) Microsoft Corporation
// The Microsoft Corporation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.IO.Abstractions.TestingHelpers;
using System.Linq;
using System.Threading.Tasks;
using Hosts.Helpers;
using Hosts.Models;
using Hosts.Settings;
using Hosts.Tests.Mocks;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Moq;
using Settings.UI.Library.Enumerations;
namespace Hosts.Tests
{
[TestClass]
public class HostsServiceTest
{
private static Mock<IElevationHelper> _elevationHelper;
[ClassInitialize]
public static void ClassInitialize(TestContext context)
{
_elevationHelper = new Mock<IElevationHelper>();
_elevationHelper.Setup(m => m.IsElevated).Returns(true);
}
[TestMethod]
public void Hosts_Exists()
{
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(string.Empty));
var result = service.Exists();
Assert.IsTrue(result);
}
[TestMethod]
public void Hosts_Not_Exists()
{
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
var result = service.Exists();
Assert.IsFalse(result);
}
[TestMethod]
public async Task Host_Added()
{
var content =
@"10.1.1.1 host host.local # comment
10.1.1.2 host2 host2.local # another comment
";
var contentResult =
@" 10.1.1.1 host host.local # comment
10.1.1.2 host2 host2.local # another comment
# 10.1.1.30 host30 host30.local # new entry
";
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(content));
var (_, entries) = await service.ReadAsync();
entries.Add(new Entry(0, "10.1.1.30", "host30 host30.local", "new entry", false));
await service.WriteAsync(string.Empty, entries);
var result = fileSystem.GetFile(service.HostsFilePath);
Assert.AreEqual(result.TextContents, contentResult);
}
[TestMethod]
public async Task Host_Deleted()
{
var content =
@"10.1.1.1 host host.local # comment
10.1.1.2 host2 host2.local # another comment
";
var contentResult =
@"10.1.1.2 host2 host2.local # another comment
";
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(content));
var (_, entries) = await service.ReadAsync();
entries.RemoveAt(0);
await service.WriteAsync(string.Empty, entries);
var result = fileSystem.GetFile(service.HostsFilePath);
Assert.AreEqual(result.TextContents, contentResult);
}
[TestMethod]
public async Task Host_Updated()
{
var content =
@"10.1.1.1 host host.local # comment
10.1.1.2 host2 host2.local # another comment
";
var contentResult =
@"# 10.1.1.10 host host.local host1.local # updated comment
10.1.1.2 host2 host2.local # another comment
";
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(content));
var (_, entries) = await service.ReadAsync();
var entry = entries[0];
entry.Address = "10.1.1.10";
entry.Hosts = "host host.local host1.local";
entry.Comment = "updated comment";
entry.Active = false;
await service.WriteAsync(string.Empty, entries);
var result = fileSystem.GetFile(service.HostsFilePath);
Assert.AreEqual(result.TextContents, contentResult);
}
[TestMethod]
public async Task Empty_Hosts()
{
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(string.Empty));
await service.WriteAsync(string.Empty, Enumerable.Empty<Entry>());
var result = fileSystem.GetFile(service.HostsFilePath);
Assert.AreEqual(result.TextContents, string.Empty);
}
[TestMethod]
public async Task AdditionalLines_Top()
{
var content =
@"# header
10.1.1.1 host host.local # comment
# comment
10.1.1.2 host2 host2.local # another comment
# footer
";
var contentResult =
@"# header
# comment
# footer
10.1.1.1 host host.local # comment
10.1.1.2 host2 host2.local # another comment
";
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
userSettings.Setup(m => m.AdditionalLinesPosition).Returns(AdditionalLinesPosition.Top);
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(content));
var (additionalLines, entries) = await service.ReadAsync();
await service.WriteAsync(additionalLines, entries);
var result = fileSystem.GetFile(service.HostsFilePath);
Assert.AreEqual(result.TextContents, contentResult);
}
[TestMethod]
public async Task AdditionalLines_Bottom()
{
var content =
@"# header
10.1.1.1 host host.local # comment
# comment
10.1.1.2 host2 host2.local # another comment
# footer
";
var contentResult =
@"10.1.1.1 host host.local # comment
10.1.1.2 host2 host2.local # another comment
# header
# comment
# footer
";
var fileSystem = new CustomMockFileSystem();
var userSettings = new Mock<IUserSettings>();
userSettings.Setup(m => m.AdditionalLinesPosition).Returns(AdditionalLinesPosition.Bottom);
var service = new HostsService(fileSystem, userSettings.Object, _elevationHelper.Object);
fileSystem.AddFile(service.HostsFilePath, new MockFileData(content));
var (additionalLines, entries) = await service.ReadAsync();
await service.WriteAsync(additionalLines, entries);
var result = fileSystem.GetFile(service.HostsFilePath);
Assert.AreEqual(result.TextContents, contentResult);
}
}
}