36 lines
847 B
TypeScript
36 lines
847 B
TypeScript
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import * as util from "util"
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import * as wtfnode from "wtfnode"
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// Jest seems to hijack console.log in a way that makes the output difficult to
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// read. So we'll write directly to process.stderr instead.
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const write = (...args: [any, ...any]) => {
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if (args.length > 0) {
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process.stderr.write(util.format(...args) + "\n")
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}
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}
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wtfnode.setLogger("info", write)
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wtfnode.setLogger("warn", write)
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wtfnode.setLogger("error", write)
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let active = false
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/**
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* Start logging open handles periodically. This can be used to see what is
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* hanging open if anything.
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*/
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export function setup(): void {
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if (active) {
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return
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}
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active = true
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const interval = 5000
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const wtfnodeDump = () => {
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wtfnode.dump()
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const t = setTimeout(wtfnodeDump, interval)
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t.unref()
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}
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const t = setTimeout(wtfnodeDump, interval)
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t.unref()
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}
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