test: make sure linked lists are inspectable with defaults
Make sure that a long singly-linked list can be passed to `util.inspect()` without causing a stack overflow. PR-URL: https://github.com/nodejs/node/pull/20017 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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@ -1404,3 +1404,15 @@ util.inspect(process);
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const args = (function() { return arguments; })('a');
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const args = (function() { return arguments; })('a');
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assert.strictEqual(util.inspect(args), "[Arguments] { '0': 'a' }");
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assert.strictEqual(util.inspect(args), "[Arguments] { '0': 'a' }");
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}
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}
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{
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// Test that a long linked list can be inspected without throwing an error.
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const list = {};
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let head = list;
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// The real cutoff value is closer to 1400 stack frames as of May 2018,
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// but let's be generous here – even a linked listed of length 100k should be
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// inspectable in some way.
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for (let i = 0; i < 100000; i++)
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head = head.next = {};
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util.inspect(list);
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}
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