diff --git a/tests/unit/Providers/OpenAiProviderTest.php b/tests/unit/Providers/OpenAiProviderTest.php
index 857a857..6ef3bcb 100644
--- a/tests/unit/Providers/OpenAiProviderTest.php
+++ b/tests/unit/Providers/OpenAiProviderTest.php
@@ -17,6 +17,7 @@
 use OCA\OpenAi\Service\OpenAiSettingsService;
 use OCA\OpenAi\TaskProcessing\ChangeToneProvider;
 use OCA\OpenAi\TaskProcessing\HeadlineProvider;
+use OCA\OpenAi\TaskProcessing\ProofreadProvider;
 use OCA\OpenAi\TaskProcessing\SummaryProvider;
 use OCA\OpenAi\TaskProcessing\TextToTextProvider;
 use OCA\OpenAi\TaskProcessing\TranslateProvider;
@@ -326,6 +327,63 @@ public function testSummaryProvider(): void {
 		$this->quotaUsageMapper->deleteUserQuotaUsages(self::TEST_USER1);
 	}
 
+	public function testProofreadProvider(): void {
+		$proofreadProvider = new ProofreadProvider(
+			$this->openAiApiService,
+			\OC::$server->get(IAppConfig::class),
+			$this->openAiSettingsService,
+			$this->createMock(\OCP\IL10N::class),
+			self::TEST_USER1,
+		);
+
+		$prompt = 'This is a test prompt';
+		$n = 1;
+
+		$response = '{
+            "id": "chatcmpl-123",
+            "object": "chat.completion",
+            "created": 1677652288,
+            "model": "gpt-3.5-turbo-0613",
+            "system_fingerprint": "fp_44709d6fcb",
+            "choices": [
+              {
+                "index": 0,
+                "message": {
+                  "role": "assistant",
+                  "content": "This is a test response."
+                },
+                "finish_reason": "stop"
+              }
+            ],
+            "usage": {
+              "prompt_tokens": 9,
+              "completion_tokens": 12,
+              "total_tokens": 21
+            }
+        }';
+
+		$url = self::OPENAI_API_BASE . 'chat/completions';
+
+		$options = ['timeout' => Application::OPENAI_DEFAULT_REQUEST_TIMEOUT, 'headers' => ['User-Agent' => Application::USER_AGENT, 'Authorization' => self::AUTHORIZATION_HEADER, 'Content-Type' => 'application/json']];
+		$message = 'Proofread the following text. List all spelling and grammar mistakes and how to correct them. Output only the list. Here is the text:' . "\n\n" . $prompt;
+		$options['body'] = json_encode(['model' => Application::DEFAULT_COMPLETION_MODEL_ID, 'messages' => [['role' => 'user', 'content' => $message]], 'max_tokens' => Application::DEFAULT_MAX_NUM_OF_TOKENS, 'n' => $n, 'user' => self::TEST_USER1]);
+
+		$iResponse = $this->createMock(\OCP\Http\Client\IResponse::class);
+		$iResponse->method('getBody')->willReturn($response);
+		$iResponse->method('getStatusCode')->willReturn(200);
+
+		$this->iClient->expects($this->once())->method('post')->with($url, $options)->willReturn($iResponse);
+
+		$result = $proofreadProvider->process(self::TEST_USER1, ['input' => $prompt], fn () => null);
+		$this->assertEquals('This is a test response.', $result['output']);
+
+		// Check that token usage is logged properly
+		$usage = $this->quotaUsageMapper->getQuotaUnitsOfUser(self::TEST_USER1, Application::QUOTA_TYPE_TEXT);
+		$this->assertEquals(21, $usage);
+		// Clear quota usage
+		$this->quotaUsageMapper->deleteUserQuotaUsages(self::TEST_USER1);
+	}
+
 	public function testTranslationProvider(): void {
 		$translationProvider = new TranslateProvider(
 			$this->openAiApiService,