CTM Calculators: Add PS billing milestones, Adjust Genesys RAMP

studies/202512_GenesysCX/ctm-token-calculator/tests/test_appendix4.py

@@ -41,6 +41,10 @@ def test_ramp_zeroes_year_one_licences():
                                             2028: 4_300_000.0}
     assert a4.licence_costs_by_year(0)[2026] == 4_300_000.0
     assert a4.licence_costs_by_year(18)[2027] == pytest.approx(4_300_000 * 6 / 12)
+    # The order form's ramp is 6 months — licences bill from July 2026.
+    assert a4.DEFAULT_RAMP_MONTHS == 6
+    assert a4.licence_costs_by_year() == {2026: 2_150_000.0, 2027: 4_300_000.0,
+                                          2028: 4_300_000.0}
 
 
 def test_current_state_run_off():
@@ -113,3 +117,21 @@ def test_contracted_overlays_verbatim():
     assert a4.TCO_VERBATIM["ccaas_annual"] == 4_300_000   # deck record intact
     assert a4.tco("current_annual") == a4.TCO_VERBATIM["current_annual"]
     assert a4.licence_costs_by_year(12, a4.tco("ccaas_annual"))[2027] == 3_200_000
+
+
+def test_sow_milestones_and_managed_services():
+    assert a4.PS_CONTRACTED_TOTAL == pytest.approx(2_025_446.48)
+    for m in a4.PS_MILESTONES:                            # amounts match the shares
+        assert m["amount"] == pytest.approx(m["share"] * a4.PS_CONTRACTED_TOTAL,
+                                            abs=0.01)
+    ps = a4.ps_costs_by_year(contracted=True)             # 50/50 across 2026-27
+    assert ps[2026] == pytest.approx(607_633.94 + 405_089.30 + 167_000)
+    assert ps[2027] == pytest.approx(607_633.94 + 405_089.30)
+    assert ps[2028] == 0.0
+    # The deck's verbatim year-1 lump stays intact for the as-pitched frame.
+    assert a4.ps_costs_by_year() == {2026: 2_567_000, 2027: 0.0, 2028: 0.0}
+    # Managed services bill from the month after MCX go-live (Sep 30 → Oct).
+    ms = a4.managed_services_by_year()
+    assert ms[2026] == pytest.approx(410_918.40 * 3 / 12)
+    assert ms[2027] == pytest.approx(410_918.40)
+    assert ms[2028] == pytest.approx(410_918.40)