test(fmt): avoid mocking native matcher prototype

Author: chenjiahan

packages/rstack/tests/fmt/discoverPaths.test.ts

@@ -2,7 +2,7 @@ import { symlinkSync } from 'node:fs';
 import path from 'node:path';
 import { expect, rs, test } from 'rstack/test';
 import { discoverFmtPaths } from '../../src/fmt/discoverPaths.ts';
-import { loadNativeBinding } from '../../src/native/index.ts';
+import * as nativeBinding from '../../src/native/index.ts';
 import { withTempProject, writeProjectFile } from './helpers.ts';
 
 const relativePaths = (rootPath: string, files: string[]): string[] =>
@@ -166,40 +166,21 @@ test('keeps valid nested gitignore rules around normalized and malformed lines',
   });
 });
 
-test.sequential('propagates errors while loading a nested gitignore', async () => {
+test('propagates native binding errors while loading a nested gitignore', async () => {
   await withTempProject(async (rootPath) => {
     writeProjectFile(rootPath, 'src/.gitignore', '*.js\n');
     writeProjectFile(rootPath, 'src/index.js');
-    const nativeError = new Error('Failed to add nested gitignore source');
-    const addSource = rs
-      .spyOn(loadNativeBinding().GitIgnoreMatcher.prototype, 'addSource')
+    const nativeError = new Error('Failed to load native binding');
+    const loadNativeBinding = rs
+      .spyOn(nativeBinding, 'loadNativeBinding')
       .mockImplementation(() => {
         throw nativeError;
       });
 
     try {
       await expect(discoverFmtPaths({ cwd: rootPath })).rejects.toBe(nativeError);
     } finally {
-      addSource.mockRestore();
-    }
-  });
-});
-
-test.sequential('propagates errors from batched native gitignore matching', async () => {
-  await withTempProject(async (rootPath) => {
-    writeProjectFile(rootPath, '.gitignore', '*.js\n');
-    writeProjectFile(rootPath, 'index.js');
-    const nativeError = new Error('Failed to match gitignore entries');
-    const matchBatch = rs
-      .spyOn(loadNativeBinding().GitIgnoreMatcher.prototype, 'isIgnoredBatchMask')
-      .mockImplementation(() => {
-        throw nativeError;
-      });
-
-    try {
-      await expect(discoverFmtPaths({ cwd: rootPath })).rejects.toBe(nativeError);
-    } finally {
-      matchBatch.mockRestore();
+      loadNativeBinding.mockRestore();
     }
   });
 });