intl: Don't crash if v8BreakIterator not available

If the undocumented v8BreakIterator does not have data available,
monkeypatch it to throw an error instead of crashing.

Fixes: https://github.com/nodejs/node/issues/3111
PR-URL: https://github.com/nodejs/node/pull/4253
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 15 insertions, 0 deletions

diff --git a/test/parallel/test-intl-v8BreakIterator.js b/test/parallel/test-intl-v8BreakIterator.js
new file mode 100644
index 0000000000..6e25c32cd7
--- /dev/null
+++ b/test/parallel/test-intl-v8BreakIterator.js
@@ -0,0 +1,15 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+
+if (global.Intl === undefined || Intl.v8BreakIterator === undefined) {
+  return console.log('1..0 # Skipped: no Intl');
+}
+
+try {
+  new Intl.v8BreakIterator();
+  // May succeed if data is available - OK
+} catch (e) {
+  // May throw this error if ICU data is not available - OK
+  assert.throws(() => new Intl.v8BreakIterator(), /ICU data/);
+}