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test/parallel/test-buffer-equals.js

@@ -0,0 +1,25 @@
+'use strict';
+
+require('../common');
+const assert = require('assert');
+
+const b = Buffer.from('abcdf');
+const c = Buffer.from('abcdf');
+const d = Buffer.from('abcde');
+const e = Buffer.from('abcdef');
+
+assert.ok(b.equals(c));
+assert.ok(!c.equals(d));
+assert.ok(!d.equals(e));
+assert.ok(d.equals(d));
+assert.ok(d.equals(new Uint8Array([0x61, 0x62, 0x63, 0x64, 0x65])));
+
+assert.throws(
+  () => Buffer.alloc(1).equals('abc'),
+  {
+    code: 'ERR_INVALID_ARG_TYPE',
+    name: 'TypeError',
+    message: 'The "otherBuffer" argument must be an instance of ' +
+             "Buffer or Uint8Array. Received type string ('abc')"
+  }
+);