Run test with Skippable fact and ignore null/whitespace mappings

Author: jborean93

src/PowerShellEditorServices/Services/DebugAdapter/DebugService.cs

@@ -612,7 +612,7 @@ internal bool TryGetMappedLocalPath(string remotePath, out string localPath)
             {
                 foreach (PathMapping mapping in _pathMappings)
                 {
-                    if (mapping.LocalRoot is null || mapping.RemoteRoot is null)
+                    if (string.IsNullOrWhiteSpace(mapping.LocalRoot) || string.IsNullOrWhiteSpace(mapping.RemoteRoot))
                     {
                         // If either path mapping is null, we can't map the path.
                         continue;
@@ -636,7 +636,7 @@ internal bool TryGetMappedRemotePath(string localPath, out string remotePath)
             {
                 foreach (PathMapping mapping in _pathMappings)
                 {
-                    if (mapping.LocalRoot is null || mapping.RemoteRoot is null)
+                    if (string.IsNullOrWhiteSpace(mapping.LocalRoot) || string.IsNullOrWhiteSpace(mapping.RemoteRoot))
                     {
                         // If either path mapping is null, we can't map the path.
                         continue;

test/PowerShellEditorServices.Test.E2E/DebugAdapterProtocolMessageTests.cs

@@ -524,7 +524,7 @@ public async Task CanRunPesterTestFile()
             Assert.Equal("pester", await ReadScriptLogLineAsync());
         }
 
-        [Fact]
+        [SkippableFact]
         public async Task CanAttachScriptWithPathMappings()
         {
             Skip.If(PsesStdioLanguageServerProcessHost.RunningInConstrainedLanguageMode,