fix for /test for files outside of workspace.

Author: ashishrp-aws

packages/core/src/amazonqTest/chat/controller/controller.ts

@@ -439,16 +439,24 @@ export class TestController {
 
             const language = await this.getLanguageForFilePath(filePath)
             session.fileLanguage = language
+            const workspaceFolder = vscode.workspace.getWorkspaceFolder(fileEditorToTest.document.uri)
 
             /*
                 For Re:Invent 2024 we are supporting only java and python for unit test generation, rest of the languages shows the similar experience as CWC
             */
-            if (language !== 'java' && language !== 'python') {
-                const unsupportedLanguage = language.charAt(0).toUpperCase() + language.slice(1)
-                let unsupportedMessage = `<span style="color: #EE9D28;">&#9888;<b>I'm sorry, but /test only supports Python and Java</b><br></span> While ${unsupportedLanguage} is not supported, I will generate a suggestion below. `
-                // handle the case when language is undefined
-                if (!unsupportedLanguage) {
-                    unsupportedMessage = `<span style="color: #EE9D28;">&#9888;<b>I'm sorry, but /test only supports Python and Java</b><br></span> I will still generate a suggestion below. `
+            if (!['java', 'python'].includes(language) || workspaceFolder == undefined) {
+                let unsupportedMessage: string
+                const unsupportedLanguage = language ? language.charAt(0).toUpperCase() + language.slice(1) : ''
+                if (!workspaceFolder) {
+                    // File is outside of workspace
+                    unsupportedMessage = `<span style="color: #EE9D28;">&#9888;<b>External File Detected:</b> ${fileName} is outside of workspace scope.<br></span> However, I can still help you create unit tests for ${fileName} here.`
+                } else {
+                    // File is in workspace, check language support
+                    if (unsupportedLanguage) {
+                        unsupportedMessage = `<span style="color: #EE9D28;">&#9888;<b>I'm sorry, but /test only supports Python and Java</b><br></span> While ${unsupportedLanguage} is not supported, I will generate a suggestion below.`
+                    } else {
+                        unsupportedMessage = `<span style="color: #EE9D28;">&#9888;<b>I'm sorry, but /test only supports Python and Java</b><br></span> I will still generate a suggestion below.`
+                    }
                 }
                 this.messenger.sendMessage(unsupportedMessage, tabID, 'answer')
                 await this.onCodeGeneration(session, message.prompt, tabID, fileName, filePath)