R Under development (unstable) (2026-03-08 r89575) -- "Unsuffered Consequences"
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> # This file is part of the standard setup for testthat.
> # It is recommended that you do not modify it.
> #
> # Where should you do additional test configuration?
> # Learn more about the roles of various files in:
> # * https://r-pkgs.org/tests.html
> # * https://testthat.r-lib.org/reference/test_package.html#special-files
> 
> library(testthat)
> library(ragg)
> 
> test_check("ragg")
AggDeviceCapture.h:32:73: runtime error: load of value 190, which is not a valid value for type 'bool'
    #0 0x7fd1f08a0e7a in AggDeviceCapture<agg::pixfmt_alpha_blend_rgba<agg::blender_rgba_pre<agg::rgba8T<agg::linear>, agg::order_rgba>, agg::row_accessor<unsigned char>>>::capture() /data/gannet/ripley/R/packages/tests-clang-UBSAN/ragg/src/./AggDeviceCapture.h:32:73
    #1 0x7fd1f0815092 in SEXPREC* agg_capture<AggDeviceCapture<agg::pixfmt_alpha_blend_rgba<agg::blender_rgba_pre<agg::rgba8T<agg::linear>, agg::order_rgba>, agg::row_accessor<unsigned char>>>>(_DevDesc*) /data/gannet/ripley/R/packages/tests-clang-UBSAN/ragg/src/./init_device.h:207:18
    #2 0x7fd200ac01da in devcapture (/data/gannet/ripley/R/R-clang/library/grDevices/libs/grDevices.so+0x31da)
    #3 0x55bea9b9f4a2 in do_External (/data/gannet/ripley/R/R-clang/bin/exec/R+0x8d4a2)
    #4 0x55bea9bdfd33 in bcEval_loop eval.c
    #5 0x55bea9bd90bb in bcEval eval.c
    #6 0x55bea9bd8844 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6844)
    #7 0x55bea9bf08d8 in R_execClosure eval.c
    #8 0x55bea9befddb in applyClosure_core eval.c
    #9 0x55bea9bd8c95 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6c95)
    #10 0x55bea9bf5e07 in do_set (/data/gannet/ripley/R/R-clang/bin/exec/R+0xe3e07)
    #11 0x55bea9bd8a6f in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6a6f)
    #12 0x55bea9bf4f4a in do_begin (/data/gannet/ripley/R/R-clang/bin/exec/R+0xe2f4a)
    #13 0x55bea9bd8a6f in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6a6f)
    #14 0x55bea9bf7277 in do_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xe5277)
    #15 0x55bea9bdfd33 in bcEval_loop eval.c
    #16 0x55bea9bd90bb in bcEval eval.c
    #17 0x55bea9bd8844 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6844)
    #18 0x55bea9bf08d8 in R_execClosure eval.c
    #19 0x55bea9befddb in applyClosure_core eval.c
    #20 0x55bea9bd8c95 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6c95)
    #21 0x55bea9bf7657 in do_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xe5657)
    #22 0x55bea9bdfd33 in bcEval_loop eval.c
    #23 0x55bea9bd90bb in bcEval eval.c
    #24 0x55bea9bd8844 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6844)
    #25 0x55bea9bf08d8 in R_execClosure eval.c
    #26 0x55bea9befddb in applyClosure_core eval.c
    #27 0x55bea9bf3294 in R_forceAndCall (/data/gannet/ripley/R/R-clang/bin/exec/R+0xe1294)
    #28 0x55bea9b277eb in do_lapply (/data/gannet/ripley/R/R-clang/bin/exec/R+0x157eb)
    #29 0x55bea9c3a7a7 in do_internal (/data/gannet/ripley/R/R-clang/bin/exec/R+0x1287a7)
    #30 0x55bea9bdff95 in bcEval_loop eval.c
    #31 0x55bea9bd90bb in bcEval eval.c
    #32 0x55bea9bd8844 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6844)
    #33 0x55bea9bf08d8 in R_execClosure eval.c
    #34 0x55bea9befddb in applyClosure_core eval.c
    #35 0x55bea9bd8c95 in Rf_eval (/data/gannet/ripley/R/R-clang/bin/exec/R+0xc6c95)
    #36 0x55bea9c25717 in Rf_ReplIteration (/data/gannet/ripley/R/R-clang/bin/exec/R+0x113717)
    #37 0x55bea9c2721e in run_Rmainloop (/data/gannet/ripley/R/R-clang/bin/exec/R+0x11521e)
    #38 0x55bea9c2728a in Rf_mainloop (/data/gannet/ripley/R/R-clang/bin/exec/R+0x11528a)
    #39 0x55bea9b13db7 in main (/data/gannet/ripley/R/R-clang/bin/exec/R+0x1db7)
    #40 0x7fd203111574 in __libc_start_call_main (/lib64/libc.so.6+0x3574) (BuildId: 92b5376d35bb29c098175948cf3e7cbcae3aeae1)
    #41 0x7fd203111627 in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x3627) (BuildId: 92b5376d35bb29c098175948cf3e7cbcae3aeae1)
    #42 0x55bea9b13cd4 in _start (/data/gannet/ripley/R/R-clang/bin/exec/R+0x1cd4)

SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior AggDeviceCapture.h:32:73 
[ FAIL 0 | WARN 0 | SKIP 3 | PASS 64 ]

══ Skipped tests (3) ═══════════════════════════════════════════════════════════
• On CRAN (3): 'test-polygon.R:22:3', 'test-polygon.R:41:3', 'test-text.R:12:3'

[ FAIL 0 | WARN 0 | SKIP 3 | PASS 64 ]
> 
> proc.time()
   user  system elapsed 
 11.881   0.626  14.583