diff --git a/packages/cli/src/config/config.test.ts b/packages/cli/src/config/config.test.ts
index 1859943b..269b4c81 100644
--- a/packages/cli/src/config/config.test.ts
+++ b/packages/cli/src/config/config.test.ts
@@ -214,8 +214,6 @@ describe('API Key Handling', () => {
       'Both GEMINI_API_KEY and GOOGLE_API_KEY are set. Using GOOGLE_API_KEY.',
     );
     expect(result.getApiKey()).toBe('google-key');
-
-    consoleWarnSpy.mockRestore();
   });
 });
 
diff --git a/packages/cli/src/nonInteractiveCli.test.ts b/packages/cli/src/nonInteractiveCli.test.ts
index c8fb1d33..4e7fd727 100644
--- a/packages/cli/src/nonInteractiveCli.test.ts
+++ b/packages/cli/src/nonInteractiveCli.test.ts
@@ -35,6 +35,7 @@ describe('runNonInteractive', () => {
   let mockProcessExit: ReturnType<typeof vi.fn>;
 
   beforeEach(() => {
+    vi.resetAllMocks();
     mockChat = {
       sendMessageStream: vi.fn(),
     };
@@ -201,7 +202,6 @@ describe('runNonInteractive', () => {
     expect(mockProcessStdoutWrite).toHaveBeenCalledWith(
       'Could not complete request.',
     );
-    consoleErrorSpy.mockRestore();
   });
 
   it('should exit with error if sendMessageStream throws initially', async () => {
@@ -217,6 +217,5 @@ describe('runNonInteractive', () => {
       'Error processing input:',
       apiError,
     );
-    consoleErrorSpy.mockRestore();
   });
 });
diff --git a/packages/cli/src/utils/loadIgnorePatterns.test.ts b/packages/cli/src/utils/loadIgnorePatterns.test.ts
index dc746ab0..9bcddf34 100644
--- a/packages/cli/src/utils/loadIgnorePatterns.test.ts
+++ b/packages/cli/src/utils/loadIgnorePatterns.test.ts
@@ -74,8 +74,7 @@ describe('loadGeminiIgnorePatterns', () => {
     if (actualFs.existsSync(tempDir)) {
       actualFs.rmSync(tempDir, { recursive: true, force: true });
     }
-    consoleLogSpy.mockRestore();
-    consoleWarnSpy.mockRestore();
+    vi.restoreAllMocks();
   });
 
   it('should load and parse patterns from .geminiignore, ignoring comments and empty lines', () => {
diff --git a/packages/core/src/core/logger.test.ts b/packages/core/src/core/logger.test.ts
index 72eb353e..d7bb8ef6 100644
--- a/packages/core/src/core/logger.test.ts
+++ b/packages/core/src/core/logger.test.ts
@@ -82,12 +82,11 @@ describe('Logger', () => {
   let logger: Logger;
 
   beforeEach(async () => {
+    vi.resetAllMocks();
     vi.useFakeTimers();
     vi.setSystemTime(new Date('2025-01-01T12:00:00.000Z'));
     await cleanupLogFile();
     logger = new Logger();
-    // Initialize is usually called here, but some tests initialize their own instances.
-    // For tests that use the global `logger`, it will be initialized here.
     await logger.initialize();
   });
 
@@ -95,7 +94,7 @@ describe('Logger', () => {
     logger.close();
     await cleanupLogFile();
     vi.useRealTimers();
-    vi.resetAllMocks(); // Ensure mocks are reset for every test
+    vi.restoreAllMocks();
   });
 
   afterAll(async () => {
@@ -221,7 +220,6 @@ describe('Logger', () => {
             f.startsWith(LOG_FILE_NAME + '.invalid_json') && f.endsWith('.bak'),
         ),
       ).toBe(true);
-      consoleDebugSpy.mockRestore();
       newLogger.close();
     });
 
@@ -251,7 +249,6 @@ describe('Logger', () => {
             f.endsWith('.bak'),
         ),
       ).toBe(true);
-      consoleDebugSpy.mockRestore();
       newLogger.close();
     });
   });
@@ -295,7 +292,6 @@ describe('Logger', () => {
         'Logger not initialized or session ID missing. Cannot log message.',
       );
       expect((await readLogFile()).length).toBe(0);
-      consoleDebugSpy.mockRestore();
       uninitializedLogger.close();
     });
 
@@ -346,9 +342,7 @@ describe('Logger', () => {
     });
 
     it('should not throw, not increment messageId, and log error if writing to file fails', async () => {
-      const writeFileSpy = vi
-        .spyOn(fs, 'writeFile')
-        .mockRejectedValueOnce(new Error('Disk full'));
+      vi.spyOn(fs, 'writeFile').mockRejectedValueOnce(new Error('Disk full'));
       const consoleDebugSpy = vi
         .spyOn(console, 'debug')
         .mockImplementation(() => {});
@@ -363,9 +357,6 @@ describe('Logger', () => {
       );
       expect(logger['messageId']).toBe(initialMessageId); // Not incremented
       expect(logger['logs'].length).toBe(initialLogCount); // Log not added to in-memory cache
-
-      writeFileSpy.mockRestore();
-      consoleDebugSpy.mockRestore();
     });
   });
 
@@ -448,7 +439,6 @@ describe('Logger', () => {
       );
       const fileContent = await fs.readFile(taggedFilePath, 'utf-8');
       expect(JSON.parse(fileContent)).toEqual(conversation);
-      // cleanup
       await fs.unlink(taggedFilePath);
     });
 
@@ -464,7 +454,6 @@ describe('Logger', () => {
       expect(consoleErrorSpy).toHaveBeenCalledWith(
         'Logger not initialized or checkpoint file path not set. Cannot save a checkpoint.',
       );
-      consoleErrorSpy.mockRestore();
     });
   });
 
@@ -529,7 +518,6 @@ describe('Logger', () => {
         expect.stringContaining('Failed to read or parse checkpoint file'),
         expect.any(SyntaxError),
       );
-      consoleErrorSpy.mockRestore();
     });
 
     it('should return an empty array if logger is not initialized', async () => {
@@ -542,7 +530,6 @@ describe('Logger', () => {
       expect(consoleErrorSpy).toHaveBeenCalledWith(
         'Logger not initialized or checkpoint file path not set. Cannot load checkpoint.',
       );
-      consoleErrorSpy.mockRestore();
     });
   });
 
@@ -564,7 +551,6 @@ describe('Logger', () => {
       expect(logger['logs']).toEqual([]);
       expect(logger['sessionId']).toBeUndefined();
       expect(logger['messageId']).toBe(0);
-      consoleDebugSpy.mockRestore();
     });
   });
 });
diff --git a/packages/core/src/utils/errorReporting.test.ts b/packages/core/src/utils/errorReporting.test.ts
index 1faba5f6..8d1a5bab 100644
--- a/packages/core/src/utils/errorReporting.test.ts
+++ b/packages/core/src/utils/errorReporting.test.ts
@@ -29,7 +29,6 @@ describe('reportError', () => {
   });
 
   afterEach(() => {
-    consoleErrorSpy.mockRestore();
     vi.restoreAllMocks();
   });
 
diff --git a/packages/core/src/utils/retry.test.ts b/packages/core/src/utils/retry.test.ts
index ea344d60..4c269987 100644
--- a/packages/core/src/utils/retry.test.ts
+++ b/packages/core/src/utils/retry.test.ts
@@ -176,8 +176,6 @@ describe('retryWithBackoff', () => {
     // The third delay should be capped by maxDelayMs (250ms), accounting for jitter
     expect(delays[2]).toBeGreaterThanOrEqual(250 * 0.7);
     expect(delays[2]).toBeLessThanOrEqual(250 * 1.3);
-
-    setTimeoutSpy.mockRestore();
   });
 
   it('should handle jitter correctly, ensuring varied delays', async () => {
@@ -232,7 +230,5 @@ describe('retryWithBackoff', () => {
       expect(d).toBeGreaterThanOrEqual(100 * 0.7);
       expect(d).toBeLessThanOrEqual(100 * 1.3);
     });
-
-    setTimeoutSpy.mockRestore();
   });
 });