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

node_modules/prom-client/lib/metrics/osMemoryHeap.js

@@ -0,0 +1,38 @@
+'use strict';
+
+const Gauge = require('../gauge');
+const linuxVariant = require('./osMemoryHeapLinux');
+const safeMemoryUsage = require('./helpers/safeMemoryUsage');
+
+const PROCESS_RESIDENT_MEMORY = 'process_resident_memory_bytes';
+
+function notLinuxVariant(registry, config = {}) {
+	const namePrefix = config.prefix ? config.prefix : '';
+	const labels = config.labels ? config.labels : {};
+	const labelNames = Object.keys(labels);
+
+	new Gauge({
+		name: namePrefix + PROCESS_RESIDENT_MEMORY,
+		help: 'Resident memory size in bytes.',
+		registers: registry ? [registry] : undefined,
+		labelNames,
+		collect() {
+			const memUsage = safeMemoryUsage();
+
+			// I don't think the other things returned from `process.memoryUsage()` is relevant to a standard export
+			if (memUsage) {
+				this.set(labels, memUsage.rss);
+			}
+		},
+	});
+}
+
+module.exports = (registry, config) =>
+	process.platform === 'linux'
+		? linuxVariant(registry, config)
+		: notLinuxVariant(registry, config);
+
+module.exports.metricNames =
+	process.platform === 'linux'
+		? linuxVariant.metricNames
+		: [PROCESS_RESIDENT_MEMORY];