From cd7e56f92e54ebf9df0a1c9183337b9cd3a9c0a1 Mon Sep 17 00:00:00 2001
From: Safia Abdalla <safia@microsoft.com>
Date: Tue, 9 Feb 2021 16:09:48 -0800
Subject: [PATCH 1/2] Prompt user to install Blazor WASM companion extension if
 needed

---
 src/omnisharp/utils.ts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/omnisharp/utils.ts b/src/omnisharp/utils.ts
index 2c02be62b..44caf69b1 100644
--- a/src/omnisharp/utils.ts
+++ b/src/omnisharp/utils.ts
@@ -240,6 +240,19 @@ async function isBlazorWebAssemblyProject(project: MSBuildProject): Promise<bool
 }
 
 function hasBlazorWebAssemblyDebugPrerequisites() {
+    const companionExtension = vscode.extensions.getExtension('ms-dotnettools.blazorwasm-companion');
+    if (!companionExtension) {
+        const msg = 'The Blazor WASM Debugging Extension is required to debug Blazor WASM apps in VS Code.';
+        vscode.window.showInformationMessage(msg, 'Install Extension', 'Close')
+            .then(async result => {
+                if (result === 'Install Extension') {
+                    const uriToOpen = vscode.Uri.parse('vscode:extension/ms-dotnettools.blazorwasm-companion');
+                    await vscode.commands.executeCommand('vscode.open', uriToOpen);
+                }
+            });
+        return false;
+    }
+
     const debugJavaScriptConfigSection = vscode.workspace.getConfiguration('debug.javascript');
     const usePreviewValue = debugJavaScriptConfigSection.get('usePreview');
     if (usePreviewValue) {

From d81f22ca99bfbd1cadb79d1f3705bdb4123179e2 Mon Sep 17 00:00:00 2001
From: Safia Abdalla <safia@microsoft.com>
Date: Thu, 11 Feb 2021 11:16:29 -0800
Subject: [PATCH 2/2] Update test plan

---
 test-plan.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test-plan.md b/test-plan.md
index 8867848ca..5e6299111 100644
--- a/test-plan.md
+++ b/test-plan.md
@@ -236,6 +236,12 @@ To setup a test project to verify on you can do:
 
 ##### Debugging with blazorwasm debug adapter
 
+**Note:** On a VS Code installation with no extensions, you should recieve an alert like the following:
+
+> The Blazor WASM Debugging Extension is required to debug Blazor WASM apps in VS Code.
+
+Press "Install Extension" before step 2 in each of the test scenarios below.
+
 ###### Standalone app
 
 To set up a test project to verify on, create a new Blazor WebAssembly application using the dotnet CLI.