fix(amazonq): unsupported languages test generation query (#6363)

## Problem
- The test generation for unsupported language files and external files
is unreliable and flaky.
- Telemetry updated to include new metadata for existing metadata.

## Solution
- Fix to add file name as fallback in case of empty prompt or no code
selection.
- Telemetry updated and values passed to it in controller and messenger.
Essentially same PR :
#6323 was closed last week
due to build issues.
---
Before:

https://github.com/user-attachments/assets/90ed6629-4753-41e6-9d11-b6d4dd0d6e7c

After fix:


https://github.com/user-attachments/assets/d0993345-cd2c-47ac-a8b5-1e9badf8fbac




- Treat all work as PUBLIC. Private `feature/x` branches will not be
squash-merged at release time.
- Your code changes must meet the guidelines in
[CONTRIBUTING.md](https://github.com/aws/aws-toolkit-vscode/blob/master/CONTRIBUTING.md#guidelines).
- License: I confirm that my contribution is made under the terms of the
Apache 2.0 license.

---------

Co-authored-by: Justin M. Keyes <[email protected]>

Author: ashishrp-aws

package-lock.json

@@ -40,7 +40,7 @@
         "mergeReports": "ts-node ./scripts/mergeReports.ts"
     },
     "devDependencies": {
-        "@aws-toolkits/telemetry": "^1.0.289",
+        "@aws-toolkits/telemetry": "^1.0.293",
         "@playwright/browser-chromium": "^1.43.1",
         "@stylistic/eslint-plugin": "^2.11.0",
         "@types/he": "^1.2.3",

package.json

@@ -0,0 +1,4 @@
+{
+	"type": "Bug Fix",
+	"description": "/test: for unsupported languages was sometimes unreliable"
+}

packages/amazonq/.changes/next-release/Bug Fix-cb743d9a-67da-41a2-bda3-9bc8bfa19b75.json

@@ -246,6 +246,7 @@ export class TestController {
         TelemetryHelper.instance.sendTestGenerationToolkitEvent(
             session,
             true,
+            true,
             isCancel ? 'Cancelled' : 'Failed',
             session.startTestGenerationRequestId,
             performance.now() - session.testGenerationStartTime,
@@ -456,7 +457,14 @@ export class TestController {
                     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)
+                await this.onCodeGeneration(
+                    session,
+                    message.prompt,
+                    tabID,
+                    fileName,
+                    filePath,
+                    workspaceFolder !== undefined
+                )
             } else {
                 this.messenger.sendCapabilityCard({ tabID })
                 this.messenger.sendMessage(testGenSummaryMessage(fileName), message.tabID, 'answer-part')
@@ -722,6 +730,7 @@ export class TestController {
         TelemetryHelper.instance.sendTestGenerationToolkitEvent(
             session,
             true,
+            true,
             'Succeeded',
             session.startTestGenerationRequestId,
             session.latencyOfTestGeneration,
@@ -799,20 +808,21 @@ export class TestController {
         message: string,
         tabID: string,
         fileName: string,
-        filePath: string
+        filePath: string,
+        fileInWorkspace: boolean
     ) {
         try {
             // TODO: Write this entire gen response to basiccommands and call here.
             const editorText = await fs.readFileText(filePath)
 
             const triggerPayload = {
-                query: `Generate unit tests for the following part of my code: ${message}`,
+                query: `Generate unit tests for the following part of my code: ${message?.trim() || fileName}`,
                 codeSelection: undefined,
                 trigger: ChatTriggerType.ChatMessage,
                 fileText: editorText,
                 fileLanguage: session.fileLanguage,
                 filePath: filePath,
-                message: `Generate unit tests for the following part of my code: ${message}`,
+                message: `Generate unit tests for the following part of my code: ${message?.trim() || fileName}`,
                 matchPolicy: undefined,
                 codeQuery: undefined,
                 userIntent: UserIntent.GENERATE_UNIT_TESTS,
@@ -827,7 +837,8 @@ export class TestController {
                 tabID,
                 randomUUID.toString(),
                 triggerPayload,
-                fileName
+                fileName,
+                fileInWorkspace
             )
         } finally {
             this.messenger.sendChatInputEnabled(tabID, true)
@@ -845,6 +856,7 @@ export class TestController {
             TelemetryHelper.instance.sendTestGenerationToolkitEvent(
                 session,
                 true,
+                true,
                 'Succeeded',
                 session.startTestGenerationRequestId,
                 session.latencyOfTestGeneration,

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

@@ -183,7 +183,8 @@ export class Messenger {
         tabID: string,
         triggerID: string,
         triggerPayload: TriggerPayload,
-        fileName: string
+        fileName: string,
+        fileInWorkspace: boolean
     ) {
         let message = ''
         let messageId = response.$metadata.requestId ?? ''
@@ -277,6 +278,7 @@ export class Messenger {
                     TelemetryHelper.instance.sendTestGenerationToolkitEvent(
                         session,
                         false,
+                        fileInWorkspace,
                         'Cancelled',
                         messageId,
                         performance.now() - session.testGenerationStartTime,
@@ -291,6 +293,7 @@ export class Messenger {
                     TelemetryHelper.instance.sendTestGenerationToolkitEvent(
                         session,
                         false,
+                        fileInWorkspace,
                         'Succeeded',
                         messageId,
                         performance.now() - session.testGenerationStartTime

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

@@ -70,6 +70,7 @@ export class TelemetryHelper {
     public sendTestGenerationToolkitEvent(
         session: Session,
         isSupportedLanguage: boolean,
+        isFileInWorkspace: boolean,
         result: 'Succeeded' | 'Failed' | 'Cancelled',
         requestId?: string,
         perfClientLatency?: number,
@@ -90,6 +91,7 @@ export class TelemetryHelper {
             cwsprChatProgrammingLanguage: session.fileLanguage ?? 'plaintext',
             hasUserPromptSupplied: session.hasUserPromptSupplied,
             isSupportedLanguage: isSupportedLanguage,
+            isFileInWorkspace: isFileInWorkspace,
             result: result,
             artifactsUploadDuration: artifactsUploadDuration,
             buildPayloadBytes: buildPayloadBytes,