saksham
1a4c80958f
FastAPI + Celery + Next.js + Postgres/Redis app with company monitoring, source collection, LLM-based change analysis, enrichment, and account security (Turnstile, escalating lockout, email verification).
35 lines
1.3 KiB
Python
35 lines
1.3 KiB
Python
from __future__ import annotations
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from app.change_detection.text_diff import bounded_text_diff
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def test_identical_text_has_zero_diff_ratio():
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text = "Acme Corp builds electric trucks.\nWe are hiring engineers."
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result = bounded_text_diff(text, text)
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assert result.diff_ratio == 0.0
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assert result.is_identical is True
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def test_changed_text_has_nonzero_diff_ratio_and_captures_lines():
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previous = "Acme Corp builds gasoline trucks.\nContact us for a quote."
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current = "Acme Corp builds electric trucks.\nContact us for a quote."
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result = bounded_text_diff(previous, current)
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assert result.diff_ratio > 0.0
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assert any("electric" in line for line in result.added_lines)
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assert any("gasoline" in line for line in result.removed_lines)
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def test_noise_only_changes_do_not_register_as_a_diff():
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previous = "About us.\nUpdated: 2026-01-01 10:00\nWe build trucks."
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current = "About us.\nUpdated: 2026-06-15 14:30\nWe build trucks."
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result = bounded_text_diff(previous, current)
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assert result.diff_ratio == 0.0
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def test_diff_is_bounded_in_size():
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previous = "\n".join(f"line {i} original" for i in range(200))
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current = "\n".join(f"line {i} changed" for i in range(200))
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result = bounded_text_diff(previous, current)
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assert len(result.added_lines) <= 40
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assert len(result.removed_lines) <= 40
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