Adding a map of asp tools packages that tells which versions we need to migrate and to what. Any package in that list, will also have its version updated.

test/Microsoft.DotNet.ProjectJsonMigration.Tests/Rules/PackageDependenciesTestBase.cs

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+// 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 Microsoft.Build.Construction;
+using Microsoft.DotNet.Tools.Test.Utilities;
+using System.Linq;
+using FluentAssertions;
+using Microsoft.DotNet.ProjectJsonMigration.Rules;
+using System;
+
+namespace Microsoft.DotNet.ProjectJsonMigration.Tests
+{
+    public class PackageDependenciesTestBase : TestBase
+    {
+        protected void EmitsPackageReferences(ProjectRootElement mockProj, params Tuple<string, string, string>[] packageSpecs)
+        {
+            foreach (var packageSpec in packageSpecs)
+            {
+                var packageName = packageSpec.Item1;
+                var packageVersion = packageSpec.Item2;
+                var packageTFM = packageSpec.Item3;
+
+                var items = mockProj.Items
+                    .Where(i => i.ItemType == "PackageReference")
+                    .Where(i => string.IsNullOrEmpty(packageTFM) || i.ConditionChain().Any(c => c.Contains(packageTFM)))
+                    .Where(i => i.Include == packageName)
+                    .Where(i => i.GetMetadataWithName("Version").Value == packageVersion);
+
+                items.Should().HaveCount(1);
+            }
+        }
+
+        protected void EmitsToolReferences(ProjectRootElement mockProj, params Tuple<string, string>[] toolSpecs)
+        {
+            foreach (var toolSpec in toolSpecs)
+            {
+                var packageName = toolSpec.Item1;
+                var packageVersion = toolSpec.Item2;
+
+                var items = mockProj.Items
+                    .Where(i => i.ItemType == "DotNetCliToolReference")
+                    .Where(i => i.Include == packageName)
+                    .Where(i => i.GetMetadataWithName("Version").Value == packageVersion);
+
+                items.Should().HaveCount(1);
+            }
+        }
+
+        protected ProjectRootElement RunPackageDependenciesRuleOnPj(string s, string testDirectory = null)
+        {
+            testDirectory = testDirectory ?? Temp.CreateDirectory().Path;
+            return TemporaryProjectFileRuleRunner.RunRules(new IMigrationRule[]
+            {
+                new MigratePackageDependenciesAndToolsRule()
+            }, s, testDirectory);
+        }
+    }
+}