dotnet-installer/test/Microsoft.DotNet.Cli.Utils.Tests/GivenACompositeCommandResolver.cs

76 lines
2.7 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 System.Collections.Generic;
using FluentAssertions;
using Microsoft.DotNet.Tools.Test.Utilities;
using Moq;
using Xunit;
namespace Microsoft.DotNet.Cli.Utils.Tests
{
public class GivenACompositeCommandResolver
{
[Fact]
public void It_iterates_through_all_added_resolvers_in_order_when_they_return_null()
{
var compositeCommandResolver = new CompositeCommandResolver();
var resolverCalls = new List<int>();
var mockResolver1 = new Mock<ICommandResolver>();
mockResolver1.Setup(r => r
.Resolve(It.IsAny<CommandResolverArguments>()))
.Returns(default(CommandSpec))
.Callback(() => resolverCalls.Add(1));
var mockResolver2 = new Mock<ICommandResolver>();
mockResolver2.Setup(r => r
.Resolve(It.IsAny<CommandResolverArguments>()))
.Returns(default(CommandSpec))
.Callback(() => resolverCalls.Add(2));
compositeCommandResolver.AddCommandResolver(mockResolver1.Object);
compositeCommandResolver.AddCommandResolver(mockResolver2.Object);
compositeCommandResolver.Resolve(default(CommandResolverArguments));
resolverCalls.Should()
.HaveCount(2)
.And
.ContainInOrder(new [] {1, 2});
}
[Fact]
public void It_stops_iterating_through_added_resolvers_when_one_returns_nonnull()
{
var compositeCommandResolver = new CompositeCommandResolver();
var resolverCalls = new List<int>();
var mockResolver1 = new Mock<ICommandResolver>();
mockResolver1.Setup(r => r
.Resolve(It.IsAny<CommandResolverArguments>()))
.Returns(new CommandSpec(null, null, default(CommandResolutionStrategy)))
.Callback(() => resolverCalls.Add(1));
var mockResolver2 = new Mock<ICommandResolver>();
mockResolver2.Setup(r => r
.Resolve(It.IsAny<CommandResolverArguments>()))
.Returns(default(CommandSpec))
.Callback(() => resolverCalls.Add(2));
compositeCommandResolver.AddCommandResolver(mockResolver1.Object);
compositeCommandResolver.AddCommandResolver(mockResolver2.Object);
compositeCommandResolver.Resolve(default(CommandResolverArguments));
resolverCalls.Should()
.HaveCount(1)
.And
.ContainInOrder(new [] {1});
}
}
}