From 9e907b996b6f4a2a2c0e28478a79e2357f4bce2d Mon Sep 17 00:00:00 2001
From: Emil Sivervik <emil@sivervik.com>
Date: Sun, 3 Jan 2021 13:16:22 +0100
Subject: [PATCH] test: increase inspect coverage

1. Truncate output for Primitives with 1 character left
Refs: https://coverage.nodejs.org/coverage-0b6d3070a176d437/lib/internal/util/inspect.js.html#L1359

2. Truncate output for ArrayBuffers using plural or singular bytes
Refs: https://coverage.nodejs.org/coverage-0b6d3070a176d437/lib/internal/util/inspect.js.html#L1465
---
 test/parallel/test-util-inspect.js | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/test/parallel/test-util-inspect.js b/test/parallel/test-util-inspect.js
index ad8da0a7a47e9d..9c6ed99f981dbf 100644
--- a/test/parallel/test-util-inspect.js
+++ b/test/parallel/test-util-inspect.js
@@ -210,6 +210,17 @@ assert(!/Object/.test(
                      'ArrayBuffer { (detached), byteLength: 0 }');
 }
 
+// Truncate output for ArrayBuffers using plural or singular bytes
+{
+  const ab = new ArrayBuffer(3);
+  assert.strictEqual(util.inspect(ab, { showHidden: true, maxArrayLength: 2 }),
+                     'ArrayBuffer { [Uint8Contents]' +
+                      ': <00 00 ... 1 more byte>, byteLength: 3 }');
+  assert.strictEqual(util.inspect(ab, { showHidden: true, maxArrayLength: 1 }),
+                     'ArrayBuffer { [Uint8Contents]' +
+                      ': <00 ... 2 more bytes>, byteLength: 3 }');
+}
+
 // Now do the same checks but from a different context.
 {
   const showHidden = false;
@@ -2915,6 +2926,12 @@ assert.strictEqual(
   assert.strictEqual(inspect(undetectable), '{}');
 }
 
+// Truncate output for Primitives with 1 character left
+{
+  assert.strictEqual(util.inspect('bl', { maxStringLength: 1 }),
+                     "'b'... 1 more character");
+}
+
 {
   const x = 'a'.repeat(1e6);
   assert(util.inspect(x).endsWith('... 990000 more characters'));