From 4badd9318245240f2de90eb26cdd089ae8f0a777 Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Tue, 15 Dec 2015 17:38:00 -0500
Subject: [PATCH] test: add test for debugging one line files

This commit adds a regression test for debugging of
single line files.

Refs: https://github.com/nodejs/node/issues/4297
PR-URL: https://github.com/nodejs/node/pull/4298
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
---
 test/fixtures/exports-function-with-param.js |  1 +
 test/parallel/test-vm-debug-context.js       | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 test/fixtures/exports-function-with-param.js

diff --git a/test/fixtures/exports-function-with-param.js b/test/fixtures/exports-function-with-param.js
new file mode 100644
index 0000000000..263b906442
--- /dev/null
+++ b/test/fixtures/exports-function-with-param.js
@@ -0,0 +1 @@
+module.exports = function foo(arg) { return arg; }
diff --git a/test/parallel/test-vm-debug-context.js b/test/parallel/test-vm-debug-context.js
index 2e86d136be..b648592eae 100644
--- a/test/parallel/test-vm-debug-context.js
+++ b/test/parallel/test-vm-debug-context.js
@@ -53,6 +53,24 @@ assert.strictEqual(vm.runInDebugContext(undefined), undefined);
   assert.equal(breaks, 1);
 })();
 
+// Can set listeners and breakpoints on a single line file
+(function() {
+  const Debug = vm.runInDebugContext('Debug');
+  const fn = require(common.fixturesDir + '/exports-function-with-param');
+  let called = false;
+
+  Debug.setListener(function(event, state, data) {
+    if (data.constructor.name === 'BreakEvent') {
+      called = true;
+    }
+  });
+
+  Debug.setBreakPoint(fn);
+  fn('foo');
+  assert.strictEqual(Debug.showBreakPoints(fn), '(arg) { [B0]return arg; }');
+  assert.strictEqual(called, true);
+})();
+
 // See https://github.com/nodejs/node/issues/1190, fatal errors should not
 // crash the process.
 var script = common.fixturesDir + '/vm-run-in-debug-context.js';