Implement executable_collector test

Author: giginet

src/collector.ts

@@ -1,4 +1,4 @@
-import * as fs from 'fs';
+import fs from 'fs';
 
 class ExecutableCollector {
   private executableName: string;

test/executable_collector.test.ts

@@ -0,0 +1,54 @@
+import { describe, it, expect, jest } from '@jest/globals';
+
+jest.mock('fs', () => ({
+  __esModule: true,
+  default: {
+    existsSync: jest.fn(),
+  },
+}));
+import fs from 'fs';
+import ExecutableCollector from '../src/collector';
+
+const mockExistsSync = jest.spyOn(fs, 'existsSync');
+
+describe('ExecutableCollector', () => {
+  beforeEach(() => {
+    mockExistsSync.mockReset();
+  });
+
+  it('should return paths for existing executables across different triples', () => {
+    mockExistsSync.mockImplementation((filePath: unknown) => {
+        const existingPaths = [
+          '.build/arm64-apple-macosx/release/myExecutable',
+          '.build/x86_64-apple-macosx/release/myExecutable',
+        ];
+        return existingPaths.includes(filePath as string);
+      }
+    );
+
+    const collector = new ExecutableCollector('myExecutable');
+    const result = collector.collect();
+    expect(result).toEqual([
+      '.build/arm64-apple-macosx/release/myExecutable',
+      '.build/x86_64-apple-macosx/release/myExecutable',
+    ]);
+  });
+
+  it('should return an empty array if no executables exist', () => {
+    (fs.existsSync as jest.Mock).mockImplementation((_) => false);
+
+    const collector = new ExecutableCollector('myExecutable');
+    const result = collector.collect();
+    expect(result).toEqual([]);
+  });
+
+  it('should support different configurations', () => {
+    mockExistsSync.mockImplementation((filePath: unknown) => {
+      return filePath === '.build/arm64-apple-macosx/debug/myExecutable';
+    });
+
+    const collector = new ExecutableCollector('myExecutable');
+    const result = collector.collect('debug');
+    expect(result).toEqual(['.build/arm64-apple-macosx/debug/myExecutable']);
+  });
+});