nodejs
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‎test/parallel/test-http-server-consumed-timeout.js‎
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‎test/parallel/test-http-server-consumed-timeout.js‎
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‎test/sequential/test-http-server-consumed-timeout.js‎
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‎test/sequential/test-http-server-consumed-timeout.js‎
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+'use strict';
+
+const common = require('../common');
+
+const assert = require('assert');
+const http = require('http');
+
+const durationBetweenIntervals = [];
+let timeoutTooShort = false;
+const TIMEOUT = common.platformTimeout(200);
+const INTERVAL = Math.floor(TIMEOUT / 8);
+
+runTest(TIMEOUT);
+
+function runTest(timeoutDuration) {
+  let intervalWasInvoked = false;
+  let newTimeoutDuration = 0;
+  const closeCallback = (err) => {
+    assert.ifError(err);
+    if (newTimeoutDuration) {
+      runTest(newTimeoutDuration);
+    }
+  };
+
+  const server = http.createServer((req, res) => {
+    server.close(common.mustCall(closeCallback));
+
+    res.writeHead(200);
+    res.flushHeaders();
+
+    req.setTimeout(timeoutDuration, () => {
+      if (!intervalWasInvoked) {
+        // Interval wasn't invoked, probably because the machine is busy with
+        // other things. Try again with a longer timeout.
+        newTimeoutDuration = timeoutDuration * 2;
+        console.error('The interval was not invoked.');
+        console.error(`Trying w/ timeout of ${newTimeoutDuration}.`);
+        return;
+      }
+
+      if (timeoutTooShort) {
+        intervalWasInvoked = false;
+        timeoutTooShort = false;
+        newTimeoutDuration =
+          Math.max(...durationBetweenIntervals, timeoutDuration) * 2;
+        console.error(`Time between intervals: ${durationBetweenIntervals}`);
+        console.error(`Trying w/ timeout of ${newTimeoutDuration}`);
+        return;
+      }
+
+      assert.fail('Request timeout should not fire');
+    });
+
+    req.resume();
+    req.once('end', () => {
+      res.end();
+    });
+  });
+
+  server.listen(0, common.mustCall(() => {
+    const req = http.request({
+      port: server.address().port,
+      method: 'POST'
+    }, () => {
+      let lastIntervalTimestamp = Date.now();
+      const interval = setInterval(() => {
+        const lastDuration = Date.now() - lastIntervalTimestamp;
+        durationBetweenIntervals.push(lastDuration);
+        lastIntervalTimestamp = Date.now();
+        if (lastDuration > timeoutDuration / 2) {
+          // The interval is supposed to be about 1/8 of the timeout duration.
+          // If it's running so infrequently that it's greater than 1/2 the
+          // timeout duration, then run the test again with a longer timeout.
+          timeoutTooShort = true;
+        }
+        intervalWasInvoked = true;
+        req.write('a');
+      }, INTERVAL);
+      setTimeout(() => {
+        clearInterval(interval);
+        req.end();
+      }, timeoutDuration);
+    });
+    req.write('.');
+  }));
+}