feat: Add testing framework and initial test cases for various tools and database operations

tests/helpers/tool-helper.ts

@@ -0,0 +1,35 @@
+/**
+ * Tool testing helper - helps test MCP tools
+ */
+
+import { mcpServer } from "../../src/server.js";
+import type { ToolHandler } from "../../src/server.js";
+
+/**
+ * Call a tool by name with arguments
+ */
+export async function callTool(
+  toolName: string,
+  args: Record<string, unknown>
+): Promise<{
+  content: Array<{ type: string; text: string }>;
+  isError?: boolean;
+}> {
+  // Get the tool handler from the server
+  const tools = mcpServer.getTools();
+
+  const toolEntry = tools.get(toolName);
+  if (!toolEntry) {
+    throw new Error(`Tool ${toolName} not found`);
+  }
+
+  return await toolEntry.handler(args);
+}
+
+/**
+ * Get all registered tools
+ */
+export function getRegisteredTools(): string[] {
+  const tools = mcpServer.getTools();
+  return Array.from(tools.keys());
+}