test fix

tests/llm_translation/base_llm_unit_tests.py

@@ -1056,14 +1056,14 @@ class BaseLLMChatTest(ABC):
     @pytest.fixture
     def pdf_messages(self):
         import base64
+        import os
 
-        import requests
-
-        # URL of the file
-        url = "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"
-
-        response = requests.get(url)
-        file_data = response.content
+        # Use local PDF file instead of external URL to avoid flaky tests
+        test_dir = os.path.dirname(__file__)
+        pdf_path = os.path.join(test_dir, "fixtures", "dummy.pdf")
+        
+        with open(pdf_path, "rb") as f:
+            file_data = f.read()
 
         encoded_file = base64.b64encode(file_data).decode("utf-8")
         url = f"data:application/pdf;base64,{encoded_file}"

tests/llm_translation/fixtures/dummy.pdf

@@ -0,0 +1,36 @@
+%PDF-1.4
+1 0 obj
+<< /Type /Catalog /Pages 2 0 R >>
+endobj
+2 0 obj
+<< /Type /Pages /Kids [3 0 R] /Count 1 >>
+endobj
+3 0 obj
+<< /Type /Page /Parent 2 0 R /Resources 4 0 R /MediaBox [0 0 612 792] /Contents 5 0 R >>
+endobj
+4 0 obj
+<< /Font << /F1 << /Type /Font /Subtype /Type1 /BaseFont /Helvetica >> >> >>
+endobj
+5 0 obj
+<< /Length 44 >>
+stream
+BT
+/F1 12 Tf
+100 700 Td
+(Test PDF File) Tj
+ET
+endstream
+endobj
+xref
+0 6
+0000000000 65535 f 
+0000000009 00000 n 
+0000000058 00000 n 
+0000000115 00000 n 
+0000000214 00000 n 
+0000000293 00000 n 
+trailer
+<< /Size 6 /Root 1 0 R >>
+startxref
+385
+%%EOF