initial import: @mikefreno/omp-pygenium (omp port)

tests/extensibility.test.ts

@@ -0,0 +1,62 @@
+/**
+ * extensibility.test.ts — the registry extensibility claim (task 14).
+ *
+ * Proves a NEW check registered via the public API yields a working
+ * `/pygienium-<name>` command with ZERO `index.ts` command-wiring changes: an
+ * in-test `registerCheck()` call makes the generic command-binding path
+ * (`registerPygieniumCommands`, the exact function `index.ts` calls) expose
+ * `/pygienium-witness` and `/pygienium-help` lists it. The shipped checks are
+ * each exercised by their own test files, so this suite only needs a synthetic
+ * witness.
+ */
+import { describe, expect, it, afterEach } from "bun:test";
+import {
+	clearChecks,
+	getCheck,
+	getAllChecks,
+	registerCheck,
+	type CheckDefinition,
+} from "../src/checks/registry.js";
+import { registerPygieniumCommands } from "../src/commands.js";
+import { buildPygieniumHelpLines } from "../src/help.js";
+
+/** A synthetic check registered only for this suite. */
+const witnessCheck: CheckDefinition = {
+	name: "witness",
+	label: "Witness",
+	description: "Test-only check proving zero-wiring extensibility.",
+	agentName: "scanner",
+	fixAgentName: "fixer",
+	phaseId: "witness",
+	buildScanTask: () =>
+		"# Task: witness scan\nwrite findings.md: witness: 0 issues",
+	buildFixTask: () => "# Task: witness fix\nwrite changes.md: witness: 0 edits",
+	gate: () => undefined,
+};
+
+describe("registry extensibility (task 14)", () => {
+	afterEach(() => clearChecks());
+
+	it("a registered check is visible via getCheck/getAllChecks", () => {
+		registerCheck(witnessCheck);
+		expect(getCheck("witness")).toBe(witnessCheck);
+		expect(getAllChecks().some((c) => c.name === "witness")).toBe(true);
+	});
+
+	it("registerPygieniumCommands exposes /pygienium-<name> (zero wiring)", () => {
+		registerCheck(witnessCheck);
+		const names: string[] = [];
+		registerPygieniumCommands((name) => names.push(name));
+		expect(names).toContain("pygienium-witness");
+		// And the operator commands are still wired.
+		expect(names).toContain("pygienium-help");
+		expect(names).toContain("pygienium-all");
+	});
+
+	it("/pygienium-help lists a registered check", () => {
+		registerCheck(witnessCheck);
+		const text = buildPygieniumHelpLines().join("\n");
+		expect(text).toContain("/pygienium-witness");
+		expect(text).toContain(witnessCheck.description);
+	});
+});