Addressing code review comments.

src/Microsoft.DotNet.ProjectJsonMigration/MigrationRuleInputs.cs

@@ -28,6 +28,8 @@ namespace Microsoft.DotNet.ProjectJsonMigration
             }
         }
 
+        public bool IsMultiTFM => ProjectContexts.Count() > 1;
+
         public MigrationRuleInputs(
             IEnumerable<ProjectContext> projectContexts, 
             ProjectRootElement outputMSBuildProject,

src/Microsoft.DotNet.ProjectJsonMigration/Rules/MigratePackageDependenciesAndToolsRule.cs

@@ -63,7 +63,7 @@ namespace Microsoft.DotNet.ProjectJsonMigration.Rules
                 MigrateImports(
                     migrationRuleInputs.CommonPropertyGroup,
                     targetFramework,
-                    migrationRuleInputs.ProjectContexts.Count() > 1);
+                    migrationRuleInputs.IsMultiTFM);
 
                 MigrateDependencies(
                     project,

src/Microsoft.DotNet.ProjectJsonMigration/Rules/MigrateScriptsRule.cs

@@ -32,7 +32,7 @@ namespace Microsoft.DotNet.ProjectJsonMigration.Rules
                     csproj,
                     scriptSet.Value,
                     scriptSet.Key,
-                    migrationRuleInputs.ProjectContexts.Count() > 1);
+                    migrationRuleInputs.IsMultiTFM);
             }
         }
 

src/Microsoft.DotNet.ProjectJsonMigration/Rules/MigrateTFMRule.cs

@@ -34,20 +34,7 @@ namespace Microsoft.DotNet.ProjectJsonMigration.Rules
             CleanExistingProperties(csproj);
             CleanExistingPackageReferences(csproj);
 
-            if(migrationRuleInputs.ProjectContexts.Count() == 1)
+            if(migrationRuleInputs.IsMultiTFM)
-            {
-                _transformApplicator.Execute(
-                    FrameworkTransform.Transform(
-                        migrationRuleInputs.ProjectContexts.Single().TargetFramework),
-                    propertyGroup,
-                    mergeExisting: true);
-                _transformApplicator.Execute(
-                    FrameworkRuntimeIdentifiersTransform.Transform(
-                        migrationRuleInputs.ProjectContexts.Single()),
-                    propertyGroup,
-                    mergeExisting: true);
-            }
-            else
             {
                 _transformApplicator.Execute(
                     FrameworksTransform.Transform(
@@ -65,6 +52,19 @@ namespace Microsoft.DotNet.ProjectJsonMigration.Rules
                     propertyGroup,
                     mergeExisting: true);
             }
+            else
+            {
+                _transformApplicator.Execute(
+                    FrameworkTransform.Transform(
+                        migrationRuleInputs.ProjectContexts.Single().TargetFramework),
+                    propertyGroup,
+                    mergeExisting: true);
+                _transformApplicator.Execute(
+                    FrameworkRuntimeIdentifiersTransform.Transform(
+                        migrationRuleInputs.ProjectContexts.Single()),
+                    propertyGroup,
+                    mergeExisting: true);
+            }
         }
 
         private void CleanExistingProperties(ProjectRootElement csproj)

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

@@ -201,7 +201,7 @@ namespace Microsoft.DotNet.ProjectJsonMigration.Tests
         }
 
         [Fact]
-        public void ItDoesNotConditionToPackageTargetFallBackWhenMigratingASingleTFM()
+        public void ItDoesNotAddConditionToPackageTargetFallBackWhenMigratingASingleTFM()
         {
             var importPropertyName = "PackageTargetFallback";