From ac83d199fbaa5f3d65622e0f7812390f3c104729 Mon Sep 17 00:00:00 2001
From: Rich Trott <rtrott@gmail.com>
Date: Tue, 16 Aug 2016 20:47:24 -0700
Subject: [PATCH] test: confirm that assert truncates long values
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`assert` has code to truncate values that take more than 128 characters
to display. Add a test for this functionality, as the code is not
currently exercised in the existing tests.

PR-URL: https://github.com/nodejs/node/pull/8134
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 test/parallel/test-assert.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test/parallel/test-assert.js b/test/parallel/test-assert.js
index 1da44303bf2361..9d53420f00faae 100644
--- a/test/parallel/test-assert.js
+++ b/test/parallel/test-assert.js
@@ -526,4 +526,9 @@ testBlockTypeError(assert.doesNotThrow, undefined);
 assert.throws(() => { throw 'error'; }, (err) => err === 'error');
 assert.throws(() => { throw new Error(); }, (err) => err instanceof Error);
 
+// Long values should be truncated for display.
+assert.throws(() => {
+  assert.strictEqual('A'.repeat(1000), '');
+}, new RegExp(`^AssertionError: '${'A'.repeat(127)} === ''$`));
+
 console.log('All OK');