33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
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"""Tests for Part I: Four-quadrant matrix."""
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from fqbm.state import FQBMState
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from fqbm.matrix import four_quadrant_matrix, four_quadrant_summary
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def test_four_quadrant_matrix():
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state = FQBMState(B=100, R=50, C=30, Loans=200, Deposits=180, E_cb=20, E_b=20)
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df = four_quadrant_matrix(state)
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assert "Assets (Dr)" in df.columns
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assert "Liabilities (Dr)" in df.columns
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assert "Liabilities (Cr)" in df.columns
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last = df.iloc[-1]
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assert float(last["Assets (Dr)"]) == 300
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assert float(last["Liabilities (Cr)"]) == 40
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def test_four_quadrant_matrix_with_L_cb():
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state = FQBMState(B=80, R=40, C=20, Loans=100, Deposits=90, E_cb=20, E_b=10)
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df = four_quadrant_matrix(state, L_cb=10)
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last = df.iloc[-1]
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assert float(last["Assets (Dr)"]) == 190
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def test_four_quadrant_summary_identity():
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state = FQBMState(B=50, R=30, C=10, Loans=100, Deposits=95, E_cb=10, E_b=5)
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s = four_quadrant_summary(state)
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assert "total_assets_dr" in s
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assert "identity_A_eq_L_plus_E" in s
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assert s["total_assets_dr"] == 150
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assert s["total_liabilities_dr"] + s["total_liabilities_cr"] == 150
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assert s["identity_A_eq_L_plus_E"] is True
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