diff --git a/Extensions.sln b/Extensions.sln
index 0eb0687a0f8..a58775cca58 100644
--- a/Extensions.sln
+++ b/Extensions.sln
@@ -289,7 +289,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "JSInterop", "JSInterop", "{
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.JSInterop", "src\JSInterop\Microsoft.JSInterop\src\Microsoft.JSInterop.csproj", "{6D3807BD-28A8-4B7C-92D2-8A72E1522398}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.JSInterop.Test", "src\JSInterop\Microsoft.JSInterop\test\Microsoft.JSInterop.Test.csproj", "{FD4896CE-E3FB-458E-8581-7552347C4260}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.JSInterop.Tests", "src\JSInterop\Microsoft.JSInterop\test\Microsoft.JSInterop.Tests.csproj", "{FD4896CE-E3FB-458E-8581-7552347C4260}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.JSInterop.JS", "src\JSInterop\Microsoft.JSInterop.JS\src\Microsoft.JSInterop.JS.csproj", "{76258B76-8CDD-471A-9D43-0815B712D668}"
 EndProject
diff --git a/src/Hosting/Hosting/test/HostBuilderTests.cs b/src/Hosting/Hosting/test/HostBuilderTests.cs
index 144fb0ad959..44b2fd77336 100644
--- a/src/Hosting/Hosting/test/HostBuilderTests.cs
+++ b/src/Hosting/Hosting/test/HostBuilderTests.cs
@@ -119,8 +119,7 @@ public void CanConfigureAppConfigurationAndRetrieveFromDI()
         public void CanConfigureAppConfigurationFromFile()
         {
             // Needs to look in the project directory like VS would
-            var projectDir = Path.Combine(TestPathUtilities.GetSolutionRootDirectory("Hosting"),
-                "Hosting/test");
+            var projectDir = Path.Combine(TestPathUtilities.GetRepoRootDirectory(), "src", "Hosting", "Hosting", "test");
             var hostBuilder = new HostBuilder()
                 .UseContentRoot(projectDir)
                 .ConfigureAppConfiguration((context, configBuilder) =>
diff --git a/src/JSInterop/Microsoft.JSInterop/src/Properties/AssemblyInfo.cs b/src/JSInterop/Microsoft.JSInterop/src/Properties/AssemblyInfo.cs
index d65c89dc7f1..07d0f1922f8 100644
--- a/src/JSInterop/Microsoft.JSInterop/src/Properties/AssemblyInfo.cs
+++ b/src/JSInterop/Microsoft.JSInterop/src/Properties/AssemblyInfo.cs
@@ -1,3 +1,3 @@
 using System.Runtime.CompilerServices;
 
-[assembly: InternalsVisibleTo("Microsoft.JSInterop.Test, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
+[assembly: InternalsVisibleTo("Microsoft.JSInterop.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
diff --git a/src/JSInterop/Microsoft.JSInterop/test/DotNetDispatcherTest.cs b/src/JSInterop/Microsoft.JSInterop/test/DotNetDispatcherTest.cs
index eec537f987d..8ab470d1d81 100644
--- a/src/JSInterop/Microsoft.JSInterop/test/DotNetDispatcherTest.cs
+++ b/src/JSInterop/Microsoft.JSInterop/test/DotNetDispatcherTest.cs
@@ -6,7 +6,7 @@
 using System.Threading.Tasks;
 using Xunit;
 
-namespace Microsoft.JSInterop.Test
+namespace Microsoft.JSInterop.Tests
 {
     public class DotNetDispatcherTest
     {
@@ -320,7 +320,8 @@ public class SomePublicType
             protected static void StaticMethodWithoutAttribute() { }
             protected static void InstanceMethodWithoutAttribute() { }
 
-            [JSInvokable("InvocableStaticVoid")] public static void MyInvocableVoid()
+            [JSInvokable("InvocableStaticVoid")]
+            public static void MyInvocableVoid()
             {
                 DidInvokeMyInvocableStaticVoid = true;
             }
diff --git a/src/JSInterop/Microsoft.JSInterop/test/DotNetObjectRefTest.cs b/src/JSInterop/Microsoft.JSInterop/test/DotNetObjectRefTest.cs
index 969dcae79d9..1bdec6d4652 100644
--- a/src/JSInterop/Microsoft.JSInterop/test/DotNetObjectRefTest.cs
+++ b/src/JSInterop/Microsoft.JSInterop/test/DotNetObjectRefTest.cs
@@ -6,7 +6,7 @@
 using System.Threading.Tasks;
 using Xunit;
 
-namespace Microsoft.JSInterop.Test
+namespace Microsoft.JSInterop.Tests
 {
     public class DotNetObjectRefTest
     {
diff --git a/src/JSInterop/Microsoft.JSInterop/test/JSInProcessRuntimeBaseTest.cs b/src/JSInterop/Microsoft.JSInterop/test/JSInProcessRuntimeBaseTest.cs
index d2e71f6eb21..36474fe4071 100644
--- a/src/JSInterop/Microsoft.JSInterop/test/JSInProcessRuntimeBaseTest.cs
+++ b/src/JSInterop/Microsoft.JSInterop/test/JSInProcessRuntimeBaseTest.cs
@@ -6,7 +6,7 @@
 using System.Linq;
 using Xunit;
 
-namespace Microsoft.JSInterop.Test
+namespace Microsoft.JSInterop.Tests
 {
     public class JSInProcessRuntimeBaseTest
     {
@@ -21,7 +21,7 @@ public void DispatchesSyncCallsAndDeserializesResults()
             };
 
             // Act
-            var syncResult = runtime.Invoke<TestDTO>("test identifier 1", "arg1", 123, true );
+            var syncResult = runtime.Invoke<TestDTO>("test identifier 1", "arg1", 123, true);
             var call = runtime.InvokeCalls.Single();
 
             // Assert
diff --git a/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeBaseTest.cs b/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeBaseTest.cs
index 9193d6deb8d..ab048e812fe 100644
--- a/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeBaseTest.cs
+++ b/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeBaseTest.cs
@@ -7,7 +7,7 @@
 using System.Linq;
 using Xunit;
 
-namespace Microsoft.JSInterop.Test
+namespace Microsoft.JSInterop.Tests
 {
     public class JSRuntimeBaseTest
     {
@@ -18,7 +18,7 @@ public void DispatchesAsyncCallsWithDistinctAsyncHandles()
             var runtime = new TestJSRuntime();
 
             // Act
-            runtime.InvokeAsync<object>("test identifier 1", "arg1", 123, true );
+            runtime.InvokeAsync<object>("test identifier 1", "arg1", 123, true);
             runtime.InvokeAsync<object>("test identifier 2", "some other arg");
 
             // Assert
diff --git a/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs b/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs
index d5fed45ea4f..b8a1c363dc9 100644
--- a/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs
+++ b/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs
@@ -6,7 +6,7 @@
 using System.Threading.Tasks;
 using Xunit;
 
-namespace Microsoft.JSInterop.Test
+namespace Microsoft.JSInterop.Tests
 {
     public class JSRuntimeTest
     {
diff --git a/src/JSInterop/Microsoft.JSInterop/test/JsonUtilTest.cs b/src/JSInterop/Microsoft.JSInterop/test/JsonUtilTest.cs
index 1be98b681e1..2b239faab9c 100644
--- a/src/JSInterop/Microsoft.JSInterop/test/JsonUtilTest.cs
+++ b/src/JSInterop/Microsoft.JSInterop/test/JsonUtilTest.cs
@@ -6,7 +6,7 @@
 using System.Collections.Generic;
 using Xunit;
 
-namespace Microsoft.JSInterop.Test
+namespace Microsoft.JSInterop.Tests
 {
     public class JsonUtilTest
     {
@@ -124,10 +124,10 @@ public void CanSerializeStructToJson()
                 BoolProperty = true,
                 NullableIntProperty = 1
             };
-            
+
             // Act
             var result = Json.Serialize(commandResult);
-            
+
             // Assert
             Assert.Equal("{\"stringProperty\":\"Test\",\"boolProperty\":true,\"nullableIntProperty\":1}", result);
         }
@@ -222,12 +222,12 @@ public void NonEmptyConstructorThrowsUsefulException()
             // Act
             var exception = Assert.Throws<InvalidOperationException>(() =>
             {
-                Json.Deserialize<NonEmptyConstructorPoco>(json); 
+                Json.Deserialize<NonEmptyConstructorPoco>(json);
             });
 
             // Assert
             Assert.Equal(
-                $"Cannot deserialize JSON into type '{type.FullName}' because it does not have a public parameterless constructor.", 
+                $"Cannot deserialize JSON into type '{type.FullName}' because it does not have a public parameterless constructor.",
                 exception.Message);
         }
 
@@ -277,7 +277,7 @@ public void MemberNameToCamelCase_Invalid(string input)
 
         class NonEmptyConstructorPoco
         {
-            public NonEmptyConstructorPoco(int parameter) {}
+            public NonEmptyConstructorPoco(int parameter) { }
 
             public int Property { get; set; }
         }
diff --git a/src/JSInterop/Microsoft.JSInterop/test/Microsoft.JSInterop.Test.csproj b/src/JSInterop/Microsoft.JSInterop/test/Microsoft.JSInterop.Tests.csproj
similarity index 100%
rename from src/JSInterop/Microsoft.JSInterop/test/Microsoft.JSInterop.Test.csproj
rename to src/JSInterop/Microsoft.JSInterop/test/Microsoft.JSInterop.Tests.csproj
diff --git a/src/TestingUtils/Microsoft.AspNetCore.Testing/src/TestPathUtilities.cs b/src/TestingUtils/Microsoft.AspNetCore.Testing/src/TestPathUtilities.cs
index ebd10897c38..f982471f39b 100644
--- a/src/TestingUtils/Microsoft.AspNetCore.Testing/src/TestPathUtilities.cs
+++ b/src/TestingUtils/Microsoft.AspNetCore.Testing/src/TestPathUtilities.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -8,6 +8,11 @@ namespace Microsoft.AspNetCore.Testing
 {
     public class TestPathUtilities
     {
+        public static string GetRepoRootDirectory()
+        {
+            return GetSolutionRootDirectory("Extensions");
+        }
+
         public static string GetSolutionRootDirectory(string solution)
         {
             var applicationBasePath = AppContext.BaseDirectory;