chore: add pi-claude-cli + plugin-sdk __tests__/ dirs (test consolidation)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/pi-claude-cli/src/__tests__/control-handler.test.ts

@@ -0,0 +1,191 @@
+import { describe, it, expect, vi } from "vitest";
+import { PassThrough } from "node:stream";
+import type { ClaudeControlRequest } from "../types";
+import {
+  handleControlRequest,
+  TOOL_EXECUTION_DENIED_MESSAGE,
+  MCP_PREFIX,
+} from "../control-handler";
+
+function createMockStdin() {
+  const stream = new PassThrough();
+  const chunks: string[] = [];
+  stream.on("data", (data: Buffer) => chunks.push(data.toString()));
+  return { stream, chunks };
+}
+
+function makeControlRequest(
+  toolName: string,
+  requestId = "req-test-001",
+  input: Record<string, unknown> = {},
+): ClaudeControlRequest {
+  return {
+    type: "control_request",
+    request_id: requestId,
+    request: {
+      subtype: "can_use_tool",
+      tool_name: toolName,
+      input,
+    },
+  };
+}
+
+describe("control-handler", () => {
+  describe("exported constants", () => {
+    it("exports TOOL_EXECUTION_DENIED_MESSAGE", () => {
+      expect(TOOL_EXECUTION_DENIED_MESSAGE).toBe(
+        "Tool execution is unavailable in this environment.",
+      );
+    });
+
+    it("exports MCP_PREFIX", () => {
+      expect(MCP_PREFIX).toBe("mcp__");
+    });
+  });
+
+  describe("denies custom MCP tools (mcp__custom-tools__*)", () => {
+    it("denies mcp__custom-tools__weather and returns false", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("mcp__custom-tools__weather");
+
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(false);
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.behavior).toBe("deny");
+      expect(response.response.response.message).toBe(
+        TOOL_EXECUTION_DENIED_MESSAGE,
+      );
+    });
+
+    it("denies mcp__custom-tools__deploy", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("mcp__custom-tools__deploy");
+
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(false);
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.behavior).toBe("deny");
+    });
+  });
+
+  describe("allows user MCP tools and other tools", () => {
+    it("allows user MCP tool mcp__database__query and returns true", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("mcp__database__query");
+
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(true);
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.behavior).toBe("allow");
+    });
+
+    it("allows built-in tool Read", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("Read");
+
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(true);
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.behavior).toBe("allow");
+    });
+
+    it("allows internal tools like ToolSearch", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("ToolSearch");
+
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(true);
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.behavior).toBe("allow");
+    });
+
+    it("allows unknown tools", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("SomeUnknownTool");
+
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(true);
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.behavior).toBe("allow");
+    });
+  });
+
+  describe("response format", () => {
+    it("includes matching request_id", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("Read", "custom-req-id-42");
+
+      handleControlRequest(msg, stream);
+
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.request_id).toBe("custom-req-id-42");
+    });
+
+    it("writes response as NDJSON (JSON + newline)", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("Read");
+
+      handleControlRequest(msg, stream);
+
+      expect(chunks[0].endsWith("\n")).toBe(true);
+      expect(() => JSON.parse(chunks[0].trim())).not.toThrow();
+    });
+
+    it("deny response includes message field", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("mcp__custom-tools__foo");
+
+      handleControlRequest(msg, stream);
+
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.message).toBe(
+        TOOL_EXECUTION_DENIED_MESSAGE,
+      );
+    });
+
+    it("allow response does not include a message field", () => {
+      const { stream, chunks } = createMockStdin();
+      const msg = makeControlRequest("mcp__database__query");
+
+      handleControlRequest(msg, stream);
+
+      const response = JSON.parse(chunks[0].trim());
+      expect(response.response.response.message).toBeUndefined();
+    });
+  });
+
+  describe("malformed input", () => {
+    it("returns false for missing request_id", () => {
+      const { stream } = createMockStdin();
+      const spy = vi.spyOn(console, "error").mockImplementation(() => {});
+
+      const msg = {
+        type: "control_request",
+      } as unknown as ClaudeControlRequest;
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(false);
+      spy.mockRestore();
+    });
+
+    it("returns false for missing request object", () => {
+      const { stream } = createMockStdin();
+      const spy = vi.spyOn(console, "error").mockImplementation(() => {});
+
+      const msg = {
+        type: "control_request",
+        request_id: "req-001",
+      } as unknown as ClaudeControlRequest;
+      const result = handleControlRequest(msg, stream);
+
+      expect(result).toBe(false);
+      spy.mockRestore();
+    });
+  });
+});