Input to truncate stack traces in annotations

Updates parsing of JUnit tests to conditionally truncate stack traces based on input to the action. Uses the first line of the `message` when logging the path, line, and test duration, in the same manner as `annotateTestResult`. Maintains default behavior to truncate if input is not used.

action.yml

@@ -96,6 +96,10 @@ inputs:
   annotations_limit:
     description: 'Specify the limit for annotations. This will also interrupt parsing all test-suites if the limit is reached.'
     required: false
+  truncate_stack_traces:
+    descrption: 'Truncate stack traces from test output to 2 lines in annotations'
+    required: false
+    default: true
 runs:
   using: 'node20'
   main: 'dist/index.js'

src/main.ts

@@ -37,6 +37,7 @@ export async function run(): Promise<void> {
     const transformers = readTransformers(core.getInput('transformers', {trimWhitespace: true}))
     const followSymlink = core.getBooleanInput('follow_symlink')
     const annotationsLimit = Number(core.getInput('annotations_limit') || -1)
+    const truncateStackTraces = core.getBooleanInput('truncate_stack_traces')
 
     if (excludeSources.length === 0) {
       excludeSources = ['/build/', '/__pycache__/']
@@ -73,7 +74,8 @@ export async function run(): Promise<void> {
         retrieve('testFilesPrefix', testFilesPrefix, i, reportsCount),
         transformers,
         followSymlink,
-        annotationsLimit
+        annotationsLimit,
+        truncateStackTraces
       )
 
       mergedResult.totalCount += testResult.totalCount

src/testParser.ts

@@ -146,7 +146,8 @@ export async function parseFile(
   testFilesPrefix = '',
   transformer: Transformer[] = [],
   followSymlink = false,
-  annotationsLimit = -1
+  annotationsLimit = -1,
+  truncateStackTraces = true
 ): Promise<InternalTestResult> {
   core.debug(`Parsing file ${file}`)
 
@@ -176,7 +177,8 @@ export async function parseFile(
     testFilesPrefix,
     transformer,
     followSymlink,
-    annotationsLimit
+    annotationsLimit,
+    truncateStackTraces
   )
 }
 
@@ -196,7 +198,8 @@ async function parseSuite(
   testFilesPrefix = '',
   transformer: Transformer[],
   followSymlink: boolean,
-  annotationsLimit: number
+  annotationsLimit: number,
+  truncateStackTraces: boolean
 ): Promise<InternalTestResult> {
   let totalCount = 0
   let skipped = 0
@@ -242,7 +245,8 @@ async function parseSuite(
       testFilesPrefix,
       transformer,
       followSymlink,
-      annotationsLimit
+      annotationsLimit,
+      truncateStackTraces
     )
     totalCount += res.totalCount
     skipped += res.skipped
@@ -318,10 +322,12 @@ async function parseSuite(
         .toString()
         .trim()
 
+      const stackTraceMessage = truncateStackTraces ? stackTrace.split('\n').slice(0, 2).join('\n') : stackTrace
+
       const message: string = (
         (failure && failure._attributes && failure._attributes.message) ||
         (testcase.error && testcase.error._attributes && testcase.error._attributes.message) ||
-        stackTrace.split('\n').slice(0, 2).join('\n') ||
+        stackTraceMessage ||
         testcase._attributes.name
       ).trim()
 
@@ -375,7 +381,7 @@ async function parseSuite(
       // fish the time-taken out of the test case attributes, if present
       const testTime = testcase._attributes.time === undefined ? '' : ` (${testcase._attributes.time}s)`
 
-      core.info(`${resolvedPath}:${pos.line} | ${message.replace(/\n/g, ' ')}${testTime}`)
+      core.info(`${resolvedPath}:${pos.line} | ${message.split('\n', 1)[0]}${testTime}`)
 
       annotations.push({
         path: resolvedPath,
@@ -420,7 +426,8 @@ export async function parseTestReports(
   testFilesPrefix = '',
   transformer: Transformer[] = [],
   followSymlink = false,
-  annotationsLimit = -1
+  annotationsLimit = -1,
+  truncateStackTraces = true
 ): Promise<TestResult> {
   core.debug(`Process test report for: ${reportPaths} (${checkName})`)
   const globber = await glob.create(reportPaths, {followSymbolicLinks: followSymlink})
@@ -444,7 +451,8 @@ export async function parseTestReports(
       testFilesPrefix,
       transformer,
       followSymlink,
-      annotationsLimit
+      annotationsLimit,
+      truncateStackTraces
     )
     if (c === 0) continue
     totalCount += c