chore: import upstream snapshot with attribution

tests/unit/plugins-scanner.test.ts

@@ -0,0 +1,83 @@
+import { describe, it } from "node:test";
+import assert from "node:assert/strict";
+import { mkdtempSync, writeFileSync, mkdirSync, rmSync } from "node:fs";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+
+const mod = await import("../../src/lib/plugins/scanner.ts");
+
+function makePluginDir(tmpDir: string, name: string, manifest: Record<string, unknown>) {
+  const pluginDir = join(tmpDir, name);
+  mkdirSync(pluginDir, { recursive: true });
+  writeFileSync(join(pluginDir, "plugin.json"), JSON.stringify(manifest, null, 2));
+  writeFileSync(join(pluginDir, "index.js"), "module.exports = {};");
+  return pluginDir;
+}
+
+const validManifest = { name: "scan-test", version: "1.0.0" };
+
+describe("plugin scanner", () => {
+  describe("getDefaultPluginDir", () => {
+    it("returns a string path", () => {
+      const dir = mod.getDefaultPluginDir();
+      assert.equal(typeof dir, "string");
+      assert.ok(dir.includes("plugins") || dir.includes("omniroute"));
+    });
+  });
+
+  describe("scanPluginDir", () => {
+    it("discovers valid plugins", async () => {
+      const tmp = mkdtempSync(join(tmpdir(), "scan-test-"));
+      try {
+        makePluginDir(tmp, "my-plugin", validManifest);
+        const result = await mod.scanPluginDir(tmp);
+        assert.equal(result.plugins.length, 1);
+        assert.equal(result.plugins[0].name, "scan-test");
+        assert.ok(result.plugins[0].manifest);
+        assert.ok(result.plugins[0].pluginDir);
+      } finally {
+        rmSync(tmp, { recursive: true, force: true });
+      }
+    });
+
+    it("skips directories without plugin.json", async () => {
+      const tmp = mkdtempSync(join(tmpdir(), "scan-test-"));
+      try {
+        mkdirSync(join(tmp, "not-a-plugin"));
+        writeFileSync(join(tmp, "not-a-plugin", "index.js"), "");
+        const result = await mod.scanPluginDir(tmp);
+        assert.equal(result.plugins.length, 0);
+      } finally {
+        rmSync(tmp, { recursive: true, force: true });
+      }
+    });
+
+    it("skips plugins with invalid manifest", async () => {
+      const tmp = mkdtempSync(join(tmpdir(), "scan-test-"));
+      try {
+        makePluginDir(tmp, "bad-plugin", { name: "INVALID NAME!", version: "nope" });
+        const result = await mod.scanPluginDir(tmp);
+        assert.equal(result.plugins.length, 0);
+      } finally {
+        rmSync(tmp, { recursive: true, force: true });
+      }
+    });
+
+    it("handles non-existent directory", async () => {
+      const result = await mod.scanPluginDir("/nonexistent/path");
+      assert.equal(result.plugins.length, 0);
+    });
+
+    it("discovers multiple plugins", async () => {
+      const tmp = mkdtempSync(join(tmpdir(), "scan-test-"));
+      try {
+        makePluginDir(tmp, "plugin-a", { name: "plugin-a", version: "1.0.0" });
+        makePluginDir(tmp, "plugin-b", { name: "plugin-b", version: "2.0.0" });
+        const result = await mod.scanPluginDir(tmp);
+        assert.equal(result.plugins.length, 2);
+      } finally {
+        rmSync(tmp, { recursive: true, force: true });
+      }
+    });
+  });
+});