test: Phase 2-4 — 添加 12 个测试文件 (+321 tests, 968 total)

Phase 2 (轻 Mock): envUtils, sleep/sequential, memoize, groupToolUses, dangerousPatterns, outputLimits
Phase 3 (补全): zodToJsonSchema, PermissionMode, envValidation
Phase 4 (工具模块): mcpStringUtils, destructiveCommandWarning, commandSemantics

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/services/mcp/__tests__/mcpStringUtils.test.ts

@@ -0,0 +1,140 @@
+import { describe, expect, test } from "bun:test";
+import {
+  mcpInfoFromString,
+  buildMcpToolName,
+  getMcpPrefix,
+  getMcpDisplayName,
+  getToolNameForPermissionCheck,
+  extractMcpToolDisplayName,
+} from "../mcpStringUtils";
+
+// ─── mcpInfoFromString ─────────────────────────────────────────────────
+
+describe("mcpInfoFromString", () => {
+  test("parses standard mcp tool name", () => {
+    const result = mcpInfoFromString("mcp__github__list_issues");
+    expect(result).toEqual({ serverName: "github", toolName: "list_issues" });
+  });
+
+  test("returns null for non-mcp string", () => {
+    expect(mcpInfoFromString("Bash")).toBeNull();
+    expect(mcpInfoFromString("grep__pattern")).toBeNull();
+  });
+
+  test("returns null when no server name", () => {
+    expect(mcpInfoFromString("mcp__")).toBeNull();
+  });
+
+  test("handles server name only (no tool)", () => {
+    const result = mcpInfoFromString("mcp__server");
+    expect(result).toEqual({ serverName: "server", toolName: undefined });
+  });
+
+  test("preserves double underscores in tool name", () => {
+    const result = mcpInfoFromString("mcp__server__tool__with__underscores");
+    expect(result).toEqual({
+      serverName: "server",
+      toolName: "tool__with__underscores",
+    });
+  });
+
+  test("returns null for empty string", () => {
+    expect(mcpInfoFromString("")).toBeNull();
+  });
+});
+
+// ─── getMcpPrefix ──────────────────────────────────────────────────────
+
+describe("getMcpPrefix", () => {
+  test("creates prefix from server name", () => {
+    expect(getMcpPrefix("github")).toBe("mcp__github__");
+  });
+
+  test("normalizes server name with special chars", () => {
+    expect(getMcpPrefix("my-server")).toBe("mcp__my-server__");
+  });
+
+  test("normalizes dots to underscores", () => {
+    expect(getMcpPrefix("my.server")).toBe("mcp__my_server__");
+  });
+});
+
+// ─── buildMcpToolName ──────────────────────────────────────────────────
+
+describe("buildMcpToolName", () => {
+  test("builds fully qualified name", () => {
+    expect(buildMcpToolName("github", "list_issues")).toBe(
+      "mcp__github__list_issues"
+    );
+  });
+
+  test("normalizes both server and tool names", () => {
+    expect(buildMcpToolName("my.server", "my.tool")).toBe(
+      "mcp__my_server__my_tool"
+    );
+  });
+});
+
+// ─── getMcpDisplayName ─────────────────────────────────────────────────
+
+describe("getMcpDisplayName", () => {
+  test("strips mcp prefix from full name", () => {
+    expect(getMcpDisplayName("mcp__github__list_issues", "github")).toBe(
+      "list_issues"
+    );
+  });
+
+  test("returns full name if prefix doesn't match", () => {
+    expect(getMcpDisplayName("mcp__other__tool", "github")).toBe(
+      "mcp__other__tool"
+    );
+  });
+});
+
+// ─── getToolNameForPermissionCheck ─────────────────────────────────────
+
+describe("getToolNameForPermissionCheck", () => {
+  test("returns built MCP name for MCP tools", () => {
+    const tool = {
+      name: "list_issues",
+      mcpInfo: { serverName: "github", toolName: "list_issues" },
+    };
+    expect(getToolNameForPermissionCheck(tool)).toBe(
+      "mcp__github__list_issues"
+    );
+  });
+
+  test("returns tool name for non-MCP tools", () => {
+    const tool = { name: "Bash" };
+    expect(getToolNameForPermissionCheck(tool)).toBe("Bash");
+  });
+
+  test("returns tool name when mcpInfo is undefined", () => {
+    const tool = { name: "Write", mcpInfo: undefined };
+    expect(getToolNameForPermissionCheck(tool)).toBe("Write");
+  });
+});
+
+// ─── extractMcpToolDisplayName ─────────────────────────────────────────
+
+describe("extractMcpToolDisplayName", () => {
+  test("extracts display name from full user-facing name", () => {
+    expect(
+      extractMcpToolDisplayName("github - Add comment to issue (MCP)")
+    ).toBe("Add comment to issue");
+  });
+
+  test("removes (MCP) suffix only", () => {
+    expect(extractMcpToolDisplayName("simple-tool (MCP)")).toBe("simple-tool");
+  });
+
+  test("handles name without (MCP) suffix", () => {
+    expect(extractMcpToolDisplayName("github - List issues")).toBe(
+      "List issues"
+    );
+  });
+
+  test("handles name without dash separator", () => {
+    expect(extractMcpToolDisplayName("just-a-name")).toBe("just-a-name");
+  });
+});