Use strict equality checking

Remove usage of == and != in favour of === and !==.

test/integration/index.js

@@ -50,7 +50,7 @@ async function get(path) {
 		url: `https://localhost:4443${path}`,
 		core: { rejectUnauthorized: false },
 	});
-	if (res.statusCode != 200) {
+	if (res.statusCode !== 200) {
 		throw new Error(`Got response code ${res.statusCode}, content: ${res.body}`);
 	}
 	return res;

test/integration/server.js

@@ -204,7 +204,7 @@ describe("Integration of lib/factorio/server", function() {
 		describe(".start() termination detection", function() {
 			it("should tell if Factorio got killed", async function() {
 				// This does not work on Windows
-				if (process.platform == "win32") {
+				if (process.platform === "win32") {
 					this.skip();
 				}
 				slowTest(this);

test/lib/prometheus.js

@@ -87,7 +87,7 @@ describe("lib/prometheus", function() {
 					prometheus.defaultRegistry.unregister(collector);
 				}
 				assert(
-					prometheus.defaultRegistry.collectors.length == 0,
+					prometheus.defaultRegistry.collectors.length === 0,
 					"Collectors left over after removing the default ones"
 				);
 			});
@@ -367,7 +367,7 @@ describe("lib/prometheus", function() {
 				gauge.labels({ a: "3", b: "4" });
 				gauge.labels({ a: "5", b: "6" });
 				gauge.clear();
-				assert(gauge._values.size == 0, "values was not cleared");
+				assert(gauge._values.size === 0, "values was not cleared");
 			});
 			it("should throw when used on an unlabled metric", function() {
 				let gauge = new prometheus.Gauge("test", "Help", { register: false });
@@ -389,7 +389,7 @@ describe("lib/prometheus", function() {
 				}
 
 				assert(
-					results.length == 1,
+					results.length === 1,
 					"collector did not give exactly one result"
 				);
 
@@ -409,7 +409,7 @@ describe("lib/prometheus", function() {
 				}
 
 				assert(
-					results.length == 1,
+					results.length === 1,
 					"collector did not give exactly one result"
 				);
 
@@ -430,7 +430,7 @@ describe("lib/prometheus", function() {
 				}
 
 				assert(
-					results.length == 1,
+					results.length === 1,
 					"collector did not give exactly one result"
 				);
 
@@ -451,7 +451,7 @@ describe("lib/prometheus", function() {
 				}
 
 				assert(
-					results.length == 1,
+					results.length === 1,
 					"collector did not give exactly one result"
 				);
 
@@ -604,7 +604,7 @@ describe("lib/prometheus", function() {
 		it("should not have any collectors in the default registry", function() {
 			this.skip(); // XXX Doesn't work in Clusterio's shared testing env
 			assert(
-				prometheus.defaultRegistry.collectors.length == 0,
+				prometheus.defaultRegistry.collectors.length === 0,
 				"Collectors left over by test code"
 			);
 		});

test/slave.js

@@ -140,7 +140,7 @@ describe("Slave testing", function() {
 
 		it("should unlink removed mods", async function() {
 			// This does not work on Windows
-			if (process.platform == "win32") {
+			if (process.platform === "win32") {
 				this.skip();
 			}