diff --git a/package.json b/package.json
index 8d33925a..541a855a 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "root",
   "private": true,
   "scripts": {
-    "test": "mocha --exit --check-leaks -R spec --recursive test plugins/*/test",
+    "test": "mocha --exit --check-leaks -R spec --recursive test plugins/global_chat/test plugins/research_sync/test plugins/statistics_exporter/test plugins/subspace_storage/test",
     "fast-test": "FAST_TEST=y npm test",
     "cover": "nyc npm test",
     "fast-cover": "FAST_TEST=y nyc npm test",
diff --git a/packages/lib/factorio/server.js b/packages/lib/factorio/server.js
index d2c764a6..896860b1 100644
--- a/packages/lib/factorio/server.js
+++ b/packages/lib/factorio/server.js
@@ -11,24 +11,9 @@ const ini = require("ini");
 const rconClient = require("rcon-client");
 const libErrors = require("@clusterio/lib/errors");
 const { logger } = require("@clusterio/lib/logging");
+const { escapeRegExp } = require("@clusterio/lib/helpers");
 
 
-/**
- * Escapes text for inclusion in a RegExp
- *
- * Adds \ character in front of special meta characters in the passsed in
- * text so that it can be embedded into a RegExp and only match the text.
- *
- * See https://stackoverflow.com/a/9310752
- *
- * @param {string} text - Text to escape RegExp meta chars in.
- * @returns {string} escaped text.
- * @inner
- */
-function escapeRegExp(text) {
-	return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
-}
-
 /**
  * Determines the version of Factorio the datadir is pointing to by
  * reading the changelog.txt in it.
diff --git a/packages/lib/helpers.js b/packages/lib/helpers.js
index cbbed42e..17464ec5 100644
--- a/packages/lib/helpers.js
+++ b/packages/lib/helpers.js
@@ -75,9 +75,26 @@ async function readStream(stream) {
 }
 
 
+/**
+ * Escapes text for inclusion in a RegExp
+ *
+ * Adds \ character in front of special meta characters in the passsed in
+ * text so that it can be embedded into a RegExp and only match the text.
+ *
+ * See https://stackoverflow.com/a/9310752
+ *
+ * @param {string} text - Text to escape RegExp meta chars in.
+ * @returns {string} escaped text.
+ */
+function escapeRegExp(text) {
+	return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
+}
+
+
 module.exports = {
 	basicType,
 	wait,
 	timeout,
 	readStream,
+	escapeRegExp,
 };
diff --git a/test/lib/helpers.js b/test/lib/helpers.js
index b9671a93..5b5159f7 100644
--- a/test/lib/helpers.js
+++ b/test/lib/helpers.js
@@ -23,7 +23,8 @@ describe("lib/helpers", function() {
 			await libHelpers.wait(100);
 			let duration = Number(hrtime() - startNs) / 1e6;
 
-			assert(duration > 90 && duration < 110, `duration waited (${duration}ms) 10% of expected (100ms)`);
+			// On windows the time waited is normally up to 15 ms late with outliers in the 20ms range.
+			assert(duration > 90 && duration < 130, `duration (${duration}ms) not within (90-130)`);
 		});
 	});
 
diff --git a/test/lib/plugin_loader.js b/test/lib/plugin_loader.js
index c5ce7332..b5098955 100644
--- a/test/lib/plugin_loader.js
+++ b/test/lib/plugin_loader.js
@@ -4,6 +4,7 @@ const fs = require("fs-extra");
 const path = require("path");
 
 const libPluginLoader = require("@clusterio/lib/plugin_loader");
+const { escapeRegExp } = require("@clusterio/lib/helpers");
 
 
 describe("lib/plugin_loader", function() {
@@ -34,7 +35,7 @@ describe("lib/plugin_loader", function() {
 		it("should throw on missing plugin", async function() {
 			await assert.rejects(
 				libPluginLoader.loadPluginInfos(new Map([["missing", missingPlugin]]), []),
-				new RegExp(`^Error: PluginError: Cannot find module '${missingPlugin}/info'`)
+				new RegExp(`^Error: PluginError: Cannot find module '${escapeRegExp(missingPlugin)}/info'`)
 			);
 		});
 		it("should load test plugin", async function() {