test: increase inspect coverage

emilsivervik · targos · commit db44b92c58be · 2021-05-01T12:25:02.000+02:00
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 PR-URL: #36755 Reviewed-By: Zijian Liu <lxxyxzj@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
diff --git 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.strictEqual(
