Include test invocation in stack trace

Author: MatthiasKunnen

lib/runner.js

@@ -4,6 +4,7 @@ const matcher = require('matcher');
 const ContextRef = require('./context-ref');
 const createChain = require('./create-chain');
 const parseTestArgs = require('./parse-test-args');
+const {stackUtils} = require('./reporters/beautify-stack');
 const snapshotManager = require('./snapshot-manager');
 const serializeError = require('./serialize-error');
 const Runnable = require('./test');
@@ -88,6 +89,8 @@ class Runner extends Emittery {
 			}
 
 			metadata.taskIndex = this.nextTaskIndex++;
+			const testInvocation = stackUtils.parseLine(stackUtils.captureString().split('\n')[0]);
+			metadata.testLine = `    at test (${testInvocation.file}:${testInvocation.line}:${testInvocation.column})`;
 
 			const {args, buildTitle, implementations, rawTitle} = parseTestArgs(testArgs);
 
@@ -366,7 +369,7 @@ class Runner extends Emittery {
 				this.emit('stateChange', {
 					type: 'test-failed',
 					title: result.title,
-					err: serializeError('Test failure', true, result.error, this.file),
+					err: serializeError('Test failure', true, result.error, this.file, task.metadata.testLine),
 					duration: result.duration,
 					knownFailing: result.metadata.failing,
 					logs: result.logs

lib/serialize-error.js

@@ -67,7 +67,7 @@ function buildSource(source) {
 	};
 }
 
-function trySerializeError(error, shouldBeautifyStack, testFile) {
+function trySerializeError(error, shouldBeautifyStack, testFile, testLine) {
 	const stack = error.savedError ? error.savedError.stack : error.stack;
 
 	const retval = {
@@ -82,6 +82,8 @@ function trySerializeError(error, shouldBeautifyStack, testFile) {
 		retval.stack = error.actualStack;
 	}
 
+	retval.stack += `\n${testLine}`;
+
 	if (retval.avaAssertionError) {
 		retval.improperUsage = error.improperUsage;
 		retval.message = error.message;
@@ -143,7 +145,7 @@ function trySerializeError(error, shouldBeautifyStack, testFile) {
 	return retval;
 }
 
-function serializeError(origin, shouldBeautifyStack, error, testFile) {
+function serializeError(origin, shouldBeautifyStack, error, testFile, testLine) {
 	if (!isError(error)) {
 		return {
 			avaAssertionError: false,
@@ -153,7 +155,7 @@ function serializeError(origin, shouldBeautifyStack, error, testFile) {
 	}
 
 	try {
-		return trySerializeError(error, shouldBeautifyStack, testFile);
+		return trySerializeError(error, shouldBeautifyStack, testFile, testLine);
 	} catch {
 		const replacement = new Error(`${origin}: Could not serialize error`);
 		return {