test: skip test if host is too slow

[Trott]

test-http-server-consumed-timeout will fail if the host is sufficiently
loaded that a 25ms interval takes more than 200ms to be invoked. Skip
the test in that situation.

Fixes: #14312

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines

Affected core subsystem(s)

test

[Trott]

The robustness here can be checked by copying the test to test/parallel and invoking it with:

tools/test.py -j 96 --repeat 192 test/parallel/test-http-server-consumed-timeout.js 

On master, I get many many failures that way. With this change, no failures.

[Trott]

CI stress test against master showing infrequent but still non-zero failures even though the test is in sequential: https://ci.nodejs.org/job/node-stress-single-test/1427/nodes=rhel72-s390x/console

CI stress test against this pull request, hopefully will come back green: https://ci.nodejs.org/job/node-stress-single-test/1428/nodes=rhel72-s390x/console

[Trott]

@BridgeAR

[refack]

Just nits

[refack]

nit: return common.skip() as to not confuse static analysers

[refack]

nit: return common.skip() as to not confuse static analysers

[refack]

nit: I find now - time > TIMEOUT more intuitive

[Trott]

CI: https://ci.nodejs.org/job/node-test-pull-request/10346/

[Fishrock123]

I'm curious - is this a first? A test that skips if it times out?

[refack]

@Fishrock123 There is at least one similar case

node/test/async-hooks/test-callback-error.js

Lines 94 to 120 in 95c8503

	consttO=setTimeout(()=>{
	console.log(stderr);
	child.kill('SIGKILL');
	process.exit(1);
	},15*1000);
	tO.unref();
	child.on('close',(code,signal)=>{
	clearTimeout(tO);
	if(common.isWindows){
	assert.strictEqual(code,134);
	assert.strictEqual(signal,null);
	}else{
	assert.strictEqual(code,null);
	// most posix systems will show 'SIGABRT', but alpine34 does not
	if(signal!=='SIGABRT'){
	console.log(`parent recived signal ${signal}\nchild's stderr:`);
	console.log(stderr);
	process.exit(1);
	}
	assert.strictEqual(signal,'SIGABRT');
	}
	assert.strictEqual(stdout,'');
	constfirstLineStderr=stderr.split(/[\r\n]+/g)[0].trim();
	assert.strictEqual(firstLineStderr,'Error: test_callback_abort');
	});
	console.timeEnd('end case 3');

If macOS is not configured properly creating a core dump could timeout so we preemptively timeout

[Trott]

Landed in a3cd8ed