R Under development (unstable) (2026-04-25 r89962 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(greenbook)
> 
> test_check("greenbook")

-- Green Book appraisal --------------------------------------------------------
NPV (real, standard schedule): "GBP 40.1"
Horizon: 4 years (year 0 to 3)
Vintage: Green Book "2022"

-- Green Book appraisal --------------------------------------------------------
NPV (real, standard schedule): "GBP 40.1"
Horizon: 4 years (year 0 to 3)
Base year: 2024
Vintage: Green Book "2022"

-- Green Book option comparison ------------------------------------------------
2 options compared, ranked by npv
Preferred (NPV): "b"
Preferred (BCR): "b"

-- Economic Case (Five Case Model) ---------------------------------------------

-- Critical success factors --

i Not specified

-- Options considered --

i Not specified

-- Monetised summary --

-- Green Book appraisal --------------------------------------------------------
NPV (real, standard schedule): "GBP 93.2"
Horizon: 2 years (year 0 to 1)
Vintage: Green Book "2022"

-- Recommendation --

Do max

-- Place-based business case ---------------------------------------------------
Projects: 2
Aggregate NPV: "GBP 73.9"
Aggregate BCR: "1.74"

-- Business case progression ---------------------------------------------------
Stages: "SOC" and "OBC"
NPV changes: +0.0

-- Appraisal headline ----------------------------------------------------------
NPV: "GBP 93.2"
BCR: "1.93"
EANC: "GBP 96.5"
Payback: year 1
Horizon: 2 years
Vintage: Green Book "2022"

-- Risk register ---------------------------------------------------------------
Risks identified: 1
Expected loss (sum of probability x impact): "GBP 50.0"
Maximum exposure (sum of impacts): "GBP 100.0"

-- Optimism bias sensitivity ---------------------------------------------------
v Validation passed: 8 checks, no errors

-- Warnings --

! base_year: base_year not set; appraisal is not self-describing for price-base
  alignment
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 308 ]
> 
> proc.time()
   user  system elapsed 
   8.92    2.17   11.15