Improve MineGeo exploration and mapping features

tests/server-address.test.ts

@@ -0,0 +1,43 @@
+import { test } from "node:test";
+import assert from "node:assert/strict";
+import { normalizeServerAddress } from "../shared/server-address";
+test("Minecraft addresses compare case, trailing DNS dot and default port consistently", () => {
+  for (const value of [
+    "play.example.com",
+    " PLAY.EXAMPLE.COM.:25565 ",
+    "play.example.com:25565",
+  ])
+    assert.equal(normalizeServerAddress(value), "play.example.com");
+  assert.equal(
+    normalizeServerAddress("192.168.0.120:25566"),
+    "192.168.0.120:25566",
+  );
+  assert.equal(normalizeServerAddress("[2001:DB8::1]:25565"), "[2001:db8::1]");
+  assert.equal(normalizeServerAddress("[::1]:25566"), "[::1]:25566");
+  assert.equal(
+    normalizeServerAddress("play.example.com:00080"),
+    "play.example.com:80",
+  );
+});
+test("clearing the server address disables its check", () => {
+  for (const value of [null, undefined, "", "  "])
+    assert.equal(normalizeServerAddress(value), null);
+});
+test("addresses reject URLs, paths, credentials, invalid hosts and ports", () => {
+  for (const value of [
+    "https://play.example.com",
+    "player@host",
+    "host/path",
+    "host?query",
+    "host:0",
+    "host:65536",
+    "host:abcdef",
+    "a..b",
+    "-host",
+    "host-",
+    "[abc]",
+    "[:::]",
+    "a".repeat(64),
+  ])
+    assert.throws(() => normalizeServerAddress(value), value);
+});