test: 添加 FileEditTool/permissions/filterToolsByDenyRules 测试

- FileEditTool/utils.test.ts: 24 tests (normalizeQuotes, stripTrailingWhitespace, findActualString, preserveQuoteStyle, applyEditToFile)
- permissions/permissions.test.ts: 13 tests (getDenyRuleForTool, getAskRuleForTool, getDenyRuleForAgent, filterDeniedAgents)
- tools.test.ts: 扩展 5 tests (filterToolsByDenyRules 过滤逻辑)

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

src/tools/FileEditTool/__tests__/utils.test.ts

@@ -0,0 +1,164 @@
+import { mock, describe, expect, test } from "bun:test";
+
+// Mock log.ts to cut the heavy dependency chain
+mock.module("src/utils/log.ts", () => ({
+  logError: () => {},
+  logToFile: () => {},
+  getLogDisplayTitle: () => "",
+  logEvent: () => {},
+  logMCPError: () => {},
+  logMCPDebug: () => {},
+  dateToFilename: (d: Date) => d.toISOString().replace(/[:.]/g, "-"),
+  getLogFilePath: () => "/tmp/mock-log",
+  attachErrorLogSink: () => {},
+  getInMemoryErrors: () => [],
+  loadErrorLogs: async () => [],
+  getErrorLogByIndex: async () => null,
+  captureAPIRequest: () => {},
+  _resetErrorLogForTesting: () => {},
+}));
+
+const {
+  normalizeQuotes,
+  stripTrailingWhitespace,
+  findActualString,
+  preserveQuoteStyle,
+  applyEditToFile,
+  LEFT_SINGLE_CURLY_QUOTE,
+  RIGHT_SINGLE_CURLY_QUOTE,
+  LEFT_DOUBLE_CURLY_QUOTE,
+  RIGHT_DOUBLE_CURLY_QUOTE,
+} = await import("../utils");
+
+// ─── normalizeQuotes ────────────────────────────────────────────────────
+
+describe("normalizeQuotes", () => {
+  test("converts left single curly to straight", () => {
+    expect(normalizeQuotes(`${LEFT_SINGLE_CURLY_QUOTE}hello`)).toBe("'hello");
+  });
+
+  test("converts right single curly to straight", () => {
+    expect(normalizeQuotes(`hello${RIGHT_SINGLE_CURLY_QUOTE}`)).toBe("hello'");
+  });
+
+  test("converts left double curly to straight", () => {
+    expect(normalizeQuotes(`${LEFT_DOUBLE_CURLY_QUOTE}hello`)).toBe('"hello');
+  });
+
+  test("converts right double curly to straight", () => {
+    expect(normalizeQuotes(`hello${RIGHT_DOUBLE_CURLY_QUOTE}`)).toBe('hello"');
+  });
+
+  test("leaves straight quotes unchanged", () => {
+    expect(normalizeQuotes("'hello' \"world\"")).toBe("'hello' \"world\"");
+  });
+
+  test("handles empty string", () => {
+    expect(normalizeQuotes("")).toBe("");
+  });
+});
+
+// ─── stripTrailingWhitespace ────────────────────────────────────────────
+
+describe("stripTrailingWhitespace", () => {
+  test("strips trailing spaces from lines", () => {
+    expect(stripTrailingWhitespace("hello   \nworld  ")).toBe("hello\nworld");
+  });
+
+  test("strips trailing tabs", () => {
+    expect(stripTrailingWhitespace("hello\t\nworld\t")).toBe("hello\nworld");
+  });
+
+  test("preserves leading whitespace", () => {
+    expect(stripTrailingWhitespace("  hello  \n  world  ")).toBe(
+      "  hello\n  world"
+    );
+  });
+
+  test("handles empty string", () => {
+    expect(stripTrailingWhitespace("")).toBe("");
+  });
+
+  test("handles CRLF line endings", () => {
+    expect(stripTrailingWhitespace("hello   \r\nworld  ")).toBe(
+      "hello\r\nworld"
+    );
+  });
+
+  test("handles no trailing whitespace", () => {
+    expect(stripTrailingWhitespace("hello\nworld")).toBe("hello\nworld");
+  });
+});
+
+// ─── findActualString ───────────────────────────────────────────────────
+
+describe("findActualString", () => {
+  test("finds exact match", () => {
+    expect(findActualString("hello world", "hello")).toBe("hello");
+  });
+
+  test("finds match with curly quotes normalized", () => {
+    const fileContent = `${LEFT_DOUBLE_CURLY_QUOTE}hello${RIGHT_DOUBLE_CURLY_QUOTE}`;
+    const result = findActualString(fileContent, '"hello"');
+    expect(result).not.toBeNull();
+  });
+
+  test("returns null when not found", () => {
+    expect(findActualString("hello world", "xyz")).toBeNull();
+  });
+
+  test("returns null for empty search in non-empty content", () => {
+    // Empty string is always found at index 0 via includes()
+    const result = findActualString("hello", "");
+    expect(result).toBe("");
+  });
+});
+
+// ─── preserveQuoteStyle ─────────────────────────────────────────────────
+
+describe("preserveQuoteStyle", () => {
+  test("returns newString unchanged when no normalization happened", () => {
+    expect(preserveQuoteStyle("hello", "hello", "world")).toBe("world");
+  });
+
+  test("converts straight double quotes to curly in replacement", () => {
+    const oldString = '"hello"';
+    const actualOldString = `${LEFT_DOUBLE_CURLY_QUOTE}hello${RIGHT_DOUBLE_CURLY_QUOTE}`;
+    const newString = '"world"';
+    const result = preserveQuoteStyle(oldString, actualOldString, newString);
+    expect(result).toContain(LEFT_DOUBLE_CURLY_QUOTE);
+    expect(result).toContain(RIGHT_DOUBLE_CURLY_QUOTE);
+  });
+});
+
+// ─── applyEditToFile ────────────────────────────────────────────────────
+
+describe("applyEditToFile", () => {
+  test("replaces first occurrence by default", () => {
+    expect(applyEditToFile("foo bar foo", "foo", "baz")).toBe("baz bar foo");
+  });
+
+  test("replaces all occurrences with replaceAll=true", () => {
+    expect(applyEditToFile("foo bar foo", "foo", "baz", true)).toBe(
+      "baz bar baz"
+    );
+  });
+
+  test("handles deletion (empty newString) with trailing newline", () => {
+    const result = applyEditToFile("line1\nline2\nline3\n", "line2", "");
+    expect(result).toBe("line1\nline3\n");
+  });
+
+  test("handles deletion without trailing newline", () => {
+    const result = applyEditToFile("foobar", "foo", "");
+    expect(result).toBe("bar");
+  });
+
+  test("handles no match (returns original)", () => {
+    expect(applyEditToFile("hello world", "xyz", "abc")).toBe("hello world");
+  });
+
+  test("handles empty original content with insertion", () => {
+    expect(applyEditToFile("", "", "new content")).toBe("new content");
+  });
+});