[Init] Initial commit - NetMesh terminal manager

components/terminal/runtime/terminalBackspaceInput.test.ts

@@ -0,0 +1,25 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { mapTerminalBackspaceInput } from "./terminalBackspaceInput";
+
+const applyNetworkDeviceInput = (initial: string, input: string): string => {
+  let line = initial;
+  for (const byte of input) {
+    if (byte === "\x08") line = line.slice(0, -1);
+    else if (byte.charCodeAt(0) >= 32) line += byte;
+  }
+  return line;
+};
+
+test("Ctrl-H mode makes Backspace delete on network-device serial consoles", () => {
+  const sent = mapTerminalBackspaceInput("\x7f", "ctrl-h");
+
+  assert.equal(sent, "\x08");
+  assert.equal(applyNetworkDeviceInput("abc", sent), "ab");
+});
+
+test("default mode preserves xterm Backspace and ordinary input", () => {
+  assert.equal(mapTerminalBackspaceInput("\x7f", undefined), "\x7f");
+  assert.equal(mapTerminalBackspaceInput("show version", "ctrl-h"), "show version");
+});