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

tests/unit/tools/hobbies/football.test.ts

@@ -0,0 +1,61 @@
+/**
+ * Football tools tests
+ */
+
+import { describe, test, expect, beforeEach } from "bun:test";
+import { registerFootballTools } from "../../../../src/tools/hobbies/football.js";
+import { callTool } from "../../../helpers/tool-helper.js";
+import { setTestEnv } from "../../../helpers/test-utils.js";
+
+describe("Football Tools", () => {
+  let cleanupEnv: () => void;
+
+  beforeEach(() => {
+    cleanupEnv = setTestEnv({
+      FOOTBALL_API_KEY: "test-key",
+    });
+    registerFootballTools();
+  });
+
+  afterEach(() => {
+    cleanupEnv();
+  });
+
+  test("should get football matches", async () => {
+    const result = await callTool("football_matches", {
+      days: 7,
+    });
+
+    // Should return matches or placeholder message
+    expect(result.content[0].text).toBeDefined();
+    expect(result.content[0].text.length).toBeGreaterThan(0);
+  });
+
+  test("should get team information", async () => {
+    const result = await callTool("football_team_info", {
+      team: "Manchester United",
+    });
+
+    // Should return team info or placeholder
+    expect(result.content[0].text).toBeDefined();
+  });
+
+  test("should get league standings", async () => {
+    const result = await callTool("football_standings", {
+      league: "Premier League",
+    });
+
+    // Should return standings or placeholder
+    expect(result.content[0].text).toBeDefined();
+  });
+
+  test("should handle missing API key gracefully", async () => {
+    cleanupEnv();
+    cleanupEnv = setTestEnv({});
+    registerFootballTools();
+
+    const result = await callTool("football_matches", {});
+
+    expect(result.content[0].text).toContain("FOOTBALL_API_KEY");
+  });
+});