test: add coverage for breakLength one-column array

Add coverage for breakLength option resulting in a single-column array
display.

Refs: https://coverage.nodejs.org/coverage-0b6d3070a176d437/lib/internal/util/inspect.js.html#L1277

PR-URL: #36657
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-util-inspect.js

@@ -3058,3 +3058,22 @@ assert.strictEqual(
   Object.setPrototypeOf(generatorPrototype, originalProtoOfProto);
   assert.strictEqual(getProtoOfProto(), originalProtoOfProto);
 }
+
+{
+  // Test for when breakLength results in a single column.
+  const obj = Array(9).fill('fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf');
+  assert.strictEqual(
+    util.inspect(obj, { breakLength: 256 }),
+    '[\n' +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf',\n" +
+    "  'fhqwhgadshgnsdhjsdbkhsdabkfabkveybvf'\n" +
+    ']'
+  );
+}