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school_compare/backend/tests/test_gias_translation.py
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"""API-boundary translation: marts now carry GIAS codes; the DataFrame the
rest of the backend sees must carry today's name strings."""
import numpy as np
import pandas as pd
from backend.data_loader import translate_gias_code_columns
from backend.gias_codes import ESTABLISHMENT_STATUS, PHASE_OF_EDUCATION
def _code_for(mapping, name):
return next(c for c, n in mapping.items() if n == name)
def test_codes_become_todays_names():
df = pd.DataFrame([{
"urn": 1,
"phase_code": float(_code_for(PHASE_OF_EDUCATION, "Primary")),
"school_type_code": np.nan,
"status_code": float(_code_for(ESTABLISHMENT_STATUS, "Open, but proposed to close")),
"religious_character_code": np.nan,
"admissions_policy_code": np.nan,
}])
out = translate_gias_code_columns(df)
row = out.iloc[0]
assert row["phase"] == "Primary"
assert row["status"] == "Open, but proposed to close"
assert row["school_type"] is None
assert row["religious_denomination"] is None
assert row["admissions_policy"] is None
def test_unknown_code_degrades_not_blanks():
df = pd.DataFrame([{"urn": 1, "phase_code": 9999.0}])
out = translate_gias_code_columns(df)
assert out.iloc[0]["phase"] == "Unknown (9999)"
def test_missing_code_columns_are_a_noop():
"""Old-schema DataFrames (tests, pre-pipeline DBs) pass through untouched."""
df = pd.DataFrame([{"urn": 1, "phase": "Primary", "status": "Open"}])
out = translate_gias_code_columns(df)
assert out.iloc[0]["phase"] == "Primary"
assert out.iloc[0]["status"] == "Open"