Initial commit with translated description

tests/openclaw.test.js

@@ -0,0 +1,39 @@
+const { describe, it } = require("node:test");
+const assert = require("node:assert");
+const { extractJSON } = require("../src/openclaw");
+
+describe("openclaw module", () => {
+  describe("extractJSON()", () => {
+    it("returns null for null input", () => {
+      assert.strictEqual(extractJSON(null), null);
+    });
+
+    it("returns null for empty string", () => {
+      assert.strictEqual(extractJSON(""), null);
+    });
+
+    it("returns null for non-JSON text", () => {
+      assert.strictEqual(extractJSON("no json here"), null);
+    });
+
+    it("extracts JSON object from clean input", () => {
+      const result = extractJSON('{"key": "value"}');
+      assert.strictEqual(result, '{"key": "value"}');
+    });
+
+    it("extracts JSON array from clean input", () => {
+      const result = extractJSON("[1, 2, 3]");
+      assert.strictEqual(result, "[1, 2, 3]");
+    });
+
+    it("strips non-JSON prefix from output", () => {
+      const result = extractJSON('Some warning text\n{"key": "value"}');
+      assert.strictEqual(result, '{"key": "value"}');
+    });
+
+    it("handles prefix with special characters", () => {
+      const result = extractJSON('Doctor warnings: OK\n[{"id": 1}]');
+      assert.strictEqual(result, '[{"id": 1}]');
+    });
+  });
+});