feat: add failure message

README.md

@@ -105,3 +105,5 @@ The test object in the report includes the following [CTRF properties](https://c
 | `name`     | String | Required | The name of the test.                                                               |
 | `status`   | String | Required | The outcome of the test. One of: `passed`, `failed`, `skipped`, `pending`, `other`. |
 | `duration` | Number | Required | The time taken for the test execution, in milliseconds.                             |
+| `message`  | String | Optional | The failure message if the test failed.                                             |
+| `trace`    | String | Optional | The stack trace captured if the test failed.                                        |

package.json

@@ -1,6 +1,6 @@
 {
   "name": "jest-ctrf-json-reporter",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "",
   "main": "dist/index.js",
   "scripts": {

src/generate-report.ts

@@ -1,10 +1,16 @@
-import { type TestResult, type Test, type Status } from '@jest/test-result'
+import {
+  type TestResult,
+  type Test,
+  type Status,
+  type AssertionResult,
+} from '@jest/test-result'
 import { type Reporter, type ReporterContext } from '@jest/reporters'
 import { type Config } from '@jest/types'
 import {
   type CtrfReport,
   type CtrfTestState,
   type CtrfEnvironment,
+  type CtrfTest,
 } from '../types/ctrf'
 
 import * as fs from 'fs'
@@ -115,14 +121,36 @@ class GenerateCtrfReport implements Reporter {
 
   private updateCtrfTestResultsFromTestResult(testResult: TestResult): void {
     testResult.testResults.forEach((testCaseResult) => {
-      this.ctrfReport.results.tests.push({
+      const test: CtrfTest = {
         name: testCaseResult.fullName,
         duration: testCaseResult.duration ?? 0,
         status: this.mapStatus(testCaseResult.status),
-      })
+      }
+
+      test.message = this.extractFailureDetails(testCaseResult).message
+      test.trace = this.extractFailureDetails(testCaseResult).trace
+
+      this.ctrfReport.results.tests.push(test)
     })
   }
 
+  extractFailureDetails(testResult: AssertionResult): Partial<CtrfTest> {
+    if (
+      testResult.status === 'failed' &&
+      testResult.failureMessages !== undefined
+    ) {
+      const failureDetails: Partial<CtrfTest> = {}
+      if (testResult.failureMessages !== undefined) {
+        failureDetails.message = testResult.failureMessages.join('\r\n')
+      }
+      if (testResult.failureDetails !== undefined) {
+        failureDetails.trace = testResult.failureMessages.join('\r\n')
+      }
+      return failureDetails
+    }
+    return {}
+  }
+
   private updateTotalsFromTestResult(testResult: TestResult): void {
     testResult.testResults.forEach((testCaseResult) => {
       const ctrfStatus = this.mapStatus(testCaseResult.status)