R Under development (unstable) (2024-09-18 r87177 ucrt) -- "Unsuffered Consequences"
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> library("testthat")
> library("refund")
Warning message:
S3 method 'smooth.construct.peer.smooth.spec' was declared in NAMESPACE but not found 
> 
> Sys.setenv(NOT_CRAN = "true")
> test_check("refund")
nbasis: 40 
nbasis: 40 
nbasis: 20 
nbasis: 25 
nbasis: 30 
nbasis: 35 
nbasis: 40 
nbasis: 35 
using seWithMean for  s(argvals.vec) .
using seWithMean for  te(xte1,xte2) .
using seWithMean for  s(argvals.vec) .
using seWithMean for  te(xte1,xte2) .
[ FAIL 2 | WARN 0 | SKIP 0 | PASS 42 ]

══ Failed tests ════════════════════════════════════════════════════════════════
── Error ('test-peer.R:8:3'): peer with D2 penalty ─────────────────────────────
Error in `UseMethod("smooth.construct")`: no applicable method for 'smooth.construct' applied to an object of class "peer.smooth.spec"
Backtrace:
    ▆
 1. └─refund::pfr(pasat ~ peer(cca, pentype = "D"), data = DTI) at test-peer.R:8:3
 2.   ├─base::eval(newcall)
 3.   │ └─base::eval(newcall)
 4.   └─mgcv::gam(...)
 5.     ├─base::do.call(...)
 6.     └─mgcv:::gam.setup(...)
 7.       └─mgcv::smoothCon(...)
 8.         └─mgcv:::smooth.construct3(object, data, knots)
 9.           └─mgcv::smooth.construct(object, dk$data, dk$knots)
── Error ('test-peer.R:18:3'): peer with structured penalty works ──────────────
Error in `UseMethod("smooth.construct")`: no applicable method for 'smooth.construct' applied to an object of class "peer.smooth.spec"
Backtrace:
    ▆
 1. └─refund::pfr(...) at test-peer.R:18:3
 2.   ├─base::eval(newcall)
 3.   │ └─base::eval(newcall)
 4.   └─mgcv::gam(...)
 5.     ├─base::do.call(...)
 6.     └─mgcv:::gam.setup(...)
 7.       └─mgcv::smoothCon(...)
 8.         └─mgcv:::smooth.construct3(object, data, knots)
 9.           └─mgcv::smooth.construct(object, dk$data, dk$knots)

[ FAIL 2 | WARN 0 | SKIP 0 | PASS 42 ]
Error: Test failures
Execution halted