Method test_ring_buffer_prefetch_parameter

test/test_ring_buffer.py:400–424

Test prefetch parameter in batch consume

(self)

        assert data == [], "Empty buffer should return empty list for poll"

    def test_ring_buffer_prefetch_parameter(self):
        """Test prefetch parameter in batch consume"""
        ring_name = "/test/ring_buffer_prefetch"

        # Step 1: Create ring buffer
        cli_cmd = (
            f"test stats ring-buffer-gen {ring_name} 10 {INTERVAL_USEC} {RING_SIZE}"
        )
        result = self.vapi.cli(cli_cmd)
        assert "Generated" in result, f"CLI failed: {result}"

        # Step 2: Get ring buffer
        ring_buffer = self.statistics.get_ring_buffer(f"{ring_name}")

        # Step 3: Test with prefetch enabled
        data1 = ring_buffer.consume_data_batch(thread_index=0, prefetch=True)

        # Step 4: Reset and test with prefetch disabled
        ring_buffer.local_tails[0] = 0
        ring_buffer.last_sequences[0] = None

        data2 = ring_buffer.consume_data_batch(thread_index=0, prefetch=False)

        # Step 5: Results should be the same regardless of prefetch setting
        assert data1 == data2, "Prefetch parameter should not affect results"