--- #8_principal POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "principal"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: principal"}

--- #8_par POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "par"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: par"}

--- #8_face POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "face"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: face"}

--- #8_outstanding POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "outstanding"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: outstanding"}

--- #8_remaining POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "remaining"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: remaining"}

--- #8_proportional POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "proportional"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: proportional"}

--- #8_staggered POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "staggered"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: staggered"}

--- #8_even POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "even"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: even"}

--- #8_regular POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "regular"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: regular"}

--- #8_level POST /quantlib/core/types/notional-schedule
  Body: {"notional": 1000000, "periods": 4, "schedule_type": "level"}
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: level"}

--- #47L POST /quantlib/core/legs/float
  Body: {"notional": 1000000, "spread": 0.01, "frequency": "3M", "start_date": "2024-01-01", "end_date": "2026-01-01", "fixings": [0.04, 0.041, 0.042, 0.043, 0.044, 0.045, 0.046, 0.047]}
  Status: 422 FAIL
  detail: {"success": false, "message": "body -> fixings: Input should be a valid dictionary", "error_code": "VALIDATION_ERROR"}

--- #47M POST /quantlib/core/legs/float
  Body: {"notional": 1000000, "spread": 0.01, "frequency": "3M", "start_date": "2024-01-01", "end_date": "2026-01-01", "discount_curve": [0.04, 0.041, 0.042, 0.043]}
  Status: 400 FAIL
  detail: {"success": false, "message": "Cannot calculate cashflow: no fixing rate, fixed rate, or curve provided", "error_code": "VALIDATION_ERROR"}

--- #47N POST /quantlib/core/legs/float
  Body: {"notional": 1000000, "spread": 0.01, "frequency": "3M", "start_date": "2024-01-01", "end_date": "2026-01-01", "zero_rates": [0.04, 0.041, 0.042, 0.043]}
  Status: 400 FAIL
  detail: {"success": false, "message": "Cannot calculate cashflow: no fixing rate, fixed rate, or curve provided", "error_code": "VALIDATION_ERROR"}

--- #47O POST /quantlib/core/legs/float
  Body: {"notional": 1000000, "spread": 0.01, "frequency": "3M", "start_date": "2024-01-01", "end_date": "2026-01-01", "forward_rates": [0.04, 0.041, 0.042, 0.043]}
  Status: 400 FAIL
  detail: {"success": false, "message": "Cannot calculate cashflow: no fixing rate, fixed rate, or curve provided", "error_code": "VALIDATION_ERROR"}

--- #50_min POST /quantlib/core/periods/fixed-coupon
  Body: {"notional": 1000000, "rate": 0.05, "start_date": "2024-01-01", "end_date": "2024-07-01", "day_count_fraction": 0.5}
  Status: 500 FAIL
  detail: {"success": false, "message": "Internal server error", "error_code": "INTERNAL_ERROR"}

--- #51_nolib POST /quantlib/core/periods/float-coupon
  Body: {"notional": 1000000, "spread": 0.01, "start_date": "2024-01-01", "end_date": "2024-04-01"}
  Status: 500 FAIL
  detail: {"success": false, "message": "Internal server error", "error_code": "INTERNAL_ERROR"}

--- #51_nolib2 POST /quantlib/core/periods/float-coupon
  Body: {"notional": 1000000, "spread": 0.0, "start_date": "2024-01-01", "end_date": "2024-04-01"}
  Status: 500 FAIL
  detail: {"success": false, "message": "Internal server error", "error_code": "INTERNAL_ERROR"}