# ============================================================
# FILE: tests/test_chunker.py
# ============================================================
# PURPOSE:
# Basic tests for chunking logic.
#
# RUN:
# pytest tests/test_chunker.py
#
# Even small tests help avoid breaking core RAG logic during refactoring.
# ============================================================

from src.chunker import chunk_text_by_paragraphs


def test_chunk_text_by_paragraphs_returns_chunks():
    text = "Paragraph one.\n\nParagraph two.\n\nParagraph three."

    chunks = chunk_text_by_paragraphs(
        text=text,
        chunk_size=50,
        chunk_overlap=10,
    )

    assert len(chunks) >= 1
    assert "Paragraph one." in chunks[0]


def test_chunk_text_by_paragraphs_handles_long_text():
    text = "A" * 300

    chunks = chunk_text_by_paragraphs(
        text=text,
        chunk_size=100,
        chunk_overlap=20,
    )

    assert len(chunks) > 1