improve IRC channel continuity and formatting

2026-08-13 17:35:32 +01:00
parent 696661bfa9
commit 49064a845c
11 changed files with 601 additions and 42 deletions
@@ -0,0 +1,74 @@
+#!/usr/bin/env node
+const assert = require("assert");
+const fs = require("fs");
+const path = require("path");
+const vm = require("vm");
+
+const frontendRoot = path.resolve(__dirname, "..");
+const source = fs.readFileSync(path.join(frontendRoot, "src/js/irc.js"), "utf8");
+const context = {
+  window: {
+    NexusTerminal: {
+      createElement: () => {
+        throw new Error("formatting tests must not create DOM elements");
+      },
+    },
+  },
+};
+vm.createContext(context);
+vm.runInContext(source, context, { filename: "src/js/irc.js" });
+
+const formatting = context.window.NexusTerminal.IRCFormatting;
+assert.ok(formatting, "IRC formatting helpers should be exported");
+
+assert.strictEqual(
+  formatting.formatText("plain \x02bold\x02 \x1ditalic\x1d \x1funderlined\x1f"),
+  "plain \x1b[1mbold\x1b[22m \x1b[3mitalic\x1b[23m \x1b[4munderlined\x1b[24m",
+);
+assert.strictEqual(
+  formatting.formatText("\x0304red\x03 default"),
+  "\x1b[38;5;9mred\x1b[39;49m default",
+);
+assert.strictEqual(
+  formatting.formatText("\x0352extended \x0303,01matrix"),
+  "\x1b[38;5;196mextended \x1b[38;5;2m\x1b[48;5;0mmatrix",
+);
+assert.strictEqual(
+  formatting.formatText("\x04ff8800orange\x04 default"),
+  "\x1b[38;2;255;136;0morange\x1b[39;49m default",
+);
+assert.strictEqual(
+  formatting.formatText("\x0304,comma"),
+  "\x1b[38;5;9m,comma",
+  "a colour code without a background must leave its comma visible",
+);
+assert.strictEqual(
+  formatting.plainText("\x02bold\x02 \x0304red\x03"),
+  "bold red",
+);
+assert.strictEqual(
+  formatting.formatText("before\x1b[31munsafe\x1b]0;title\x07after"),
+  "beforeunsafeafter",
+  "untrusted ANSI and OSC sequences must not reach xterm",
+);
+
+const message = formatting.formatEvent(
+  {
+    type: "message",
+    from: "alice",
+    text: "hello \x02world\x02",
+  },
+  "12:34:56",
+);
+assert.ok(message.includes("[12:34:56]"));
+assert.ok(message.includes("\x1b[1mworld\x1b[22m"));
+assert.ok(message.includes("\x1b[1m\x1b[38;5;"), "nicknames should be bold and coloured");
+assert.ok(message.endsWith("\x1b[0m"), "every line must reset terminal styling");
+
+const action = formatting.formatEvent(
+  { type: "action", from: "bob", text: "waves" },
+  "01:02:03",
+);
+assert.ok(action.includes("\x1b[3m"), "actions should be italicised");
+
+console.log("IRC formatting regression tests passed.");