1 files changed, 36 insertions, 0 deletions
diff --git a/packages/core/tests/tools/read-file.test.ts b/packages/core/tests/tools/read-file.test.ts
new file mode 100644
index 0000000..ce65b37
--- /dev/null
+++ b/packages/core/tests/tools/read-file.test.ts
@@ -0,0 +1,36 @@
+import { mkdtemp, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { createReadFileTool } from "../../src/tools/read-file.js";
+
+describe("read_file tool", () => {
+	let workDir: string;
+
+	beforeEach(async () => {
+		workDir = await mkdtemp(join(tmpdir(), "dispatch-test-"));
+	});
+
+	afterEach(async () => {
+		await rm(workDir, { recursive: true, force: true });
+	});
+
+	it("reads an existing file", async () => {
+		const tool = createReadFileTool(workDir);
+		await writeFile(join(workDir, "hello.txt"), "Hello, world!");
+		const result = await tool.execute({ path: "hello.txt" });
+		expect(result).toBe("Hello, world!");
+	});
+
+	it("returns error for non-existent file", async () => {
+		const tool = createReadFileTool(workDir);
+		const result = await tool.execute({ path: "missing.txt" });
+		expect(result).toMatch(/not found/i);
+	});
+
+	it("blocks path traversal", async () => {
+		const tool = createReadFileTool(workDir);
+		const result = await tool.execute({ path: "../etc/passwd" });
+		expect(result).toMatch(/outside the working directory/i);
+	});
+});