Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/prom-client/lib/timeWindowQuantiles.js

@@ -0,0 +1,67 @@
+'use strict';
+
+const { TDigest } = require('tdigest');
+
+class TimeWindowQuantiles {
+	constructor(maxAgeSeconds, ageBuckets) {
+		this.maxAgeSeconds = maxAgeSeconds || 0;
+		this.ageBuckets = ageBuckets || 0;
+
+		this.shouldRotate = maxAgeSeconds && ageBuckets;
+
+		this.ringBuffer = Array(ageBuckets).fill(new TDigest());
+		this.currentBuffer = 0;
+
+		this.lastRotateTimestampMillis = Date.now();
+		this.durationBetweenRotatesMillis =
+			(maxAgeSeconds * 1000) / ageBuckets || Infinity;
+	}
+
+	size() {
+		const bucket = rotate.call(this);
+		return bucket.size();
+	}
+
+	percentile(quantile) {
+		const bucket = rotate.call(this);
+		return bucket.percentile(quantile);
+	}
+
+	push(value) {
+		rotate.call(this);
+		this.ringBuffer.forEach(bucket => {
+			bucket.push(value);
+		});
+	}
+
+	reset() {
+		this.ringBuffer.forEach(bucket => {
+			bucket.reset();
+		});
+	}
+
+	compress() {
+		this.ringBuffer.forEach(bucket => {
+			bucket.compress();
+		});
+	}
+}
+
+function rotate() {
+	let timeSinceLastRotateMillis = Date.now() - this.lastRotateTimestampMillis;
+	while (
+		timeSinceLastRotateMillis > this.durationBetweenRotatesMillis &&
+		this.shouldRotate
+	) {
+		this.ringBuffer[this.currentBuffer] = new TDigest();
+
+		if (++this.currentBuffer >= this.ringBuffer.length) {
+			this.currentBuffer = 0;
+		}
+		timeSinceLastRotateMillis -= this.durationBetweenRotatesMillis;
+		this.lastRotateTimestampMillis += this.durationBetweenRotatesMillis;
+	}
+	return this.ringBuffer[this.currentBuffer];
+}
+
+module.exports = TimeWindowQuantiles;