[R-pkg-team] Bug#1104160: r-cran-testthat breaks r-cran-s2 autopkgtest on i386

[Paul Gevers]

Source: r-cran-testthat, r-cran-s2
Control: found -1 r-cran-testthat/3.2.3-1
Control: found -1 r-cran-s2/1.1.7-1
Severity: serious
Tags: sid trixie
User: debian-ci at lists.debian.org
Usertags: breaks needs-update

Dear maintainer(s),

With a recent upload of r-cran-testthat the autopkgtest of r-cran-s2 
fails in testing when that autopkgtest is run with the binary packages 
of r-cran-testthat from unstable on i386. It passes when run with only 
packages from testing. In tabular form:

                        pass            fail
r-cran-testthat        from testing    3.2.3-1
r-cran-s2              from testing    1.1.7-1
all others             from testing    from testing

I copied some of the output at the bottom of this report.

Currently this regression is blocking the migration of r-cran-testthat 
to testing [1]. Due to the nature of this issue, I filed this bug report 
against both packages. Can you please investigate the situation and 
reassign the bug to the right package?

More information about this bug and the reason for filing it can be found on
https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation

Paul

[1] https://qa.debian.org/excuses.php?package=r-cran-testthat

https://ci.debian.net/data/autopkgtest/testing/i386/r/r-cran-s2/60243543/log.gz

  42s BEGIN TEST area.R
  43s  43s R version 4.4.3 (2025-02-28) -- "Trophy Case"
  43s Copyright (C) 2025 The R Foundation for Statistical Computing
  43s Platform: i686-pc-linux-gnu (32-bit)
  43s  43s R is free software and comes with ABSOLUTELY NO WARRANTY.
  43s You are welcome to redistribute it under certain conditions.
  43s Type 'license()' or 'licence()' for distribution details.
  43s  43s R is a collaborative project with many contributors.
  43s Type 'contributors()' for more information and
  43s 'citation()' on how to cite R or R packages in publications.
  43s  43s Type 'demo()' for some demos, 'help()' for on-line help, or
  43s 'help.start()' for an HTML browser interface to help.
  43s Type 'q()' to quit R.
  43s  43s > library(s2)
  43s >  43s > u = s2_union(
  43s +    "POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0))",
  43s +    "POLYGON ((5 5, 15 5, 15 15, 5 15, 5 5))",
  43s +    s2_options(snap = s2_snap_level(30))
  43s + )
  43s > s2_area(u, radius = 1)
  43s [1] 0.05284581
  43s > s2_area("POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0))", radius = 1) +
  43s + s2_area("POLYGON ((5 5, 15 5, 15 15, 5 15, 5 5))", radius = 1) -
  43s + s2_area("POLYGON ((5 5, 10 5, 10 15, 5 10, 5 5))", radius = 1)
  43s [1] 0.04910511
  43s > s2_area("POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0))", radius = 1)
  43s [1] 0.03038216
  43s > s2_area("POLYGON ((5 5, 15 5, 15 15, 5 15, 5 5))", radius = 1)
  43s [1] 0.03002974
  43s > s2_area("POLYGON ((5 5, 10 5, 10 15, 5 10, 5 5))", radius = 1)
  43s [1] 0.01130679
  43s >  43s > df = s2_difference(
  43s +    "POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0))",
  43s +    "POLYGON ((5 5, 15 5, 15 15, 5 15, 5 5))",
  43s +    s2_options(snap = s2_snap_level(30))
  43s + )
  43s > s2_area(df, radius = 1) -
  43s +   (s2_area("POLYGON ((0 0, 10 0, 10 10, 0 10, 0 0))", radius = 1) -
  43s +     s2_area("POLYGON ((5 5, 10 5, 10 15, 5 10, 5 5))", radius = 1))
  43s [1] 0.003740703
  43s >  43s BEGIN TEST testthat.R
  43s  43s R version 4.4.3 (2025-02-28) -- "Trophy Case"
  43s Copyright (C) 2025 The R Foundation for Statistical Computing
  43s Platform: i686-pc-linux-gnu (32-bit)
  43s  43s R is free software and comes with ABSOLUTELY NO WARRANTY.
  43s You are welcome to redistribute it under certain conditions.
  43s Type 'license()' or 'licence()' for distribution details.
  43s  43s R is a collaborative project with many contributors.
  43s Type 'contributors()' for more information and
  43s 'citation()' on how to cite R or R packages in publications.
  43s  43s Type 'demo()' for some demos, 'help()' for on-line help, or
  43s 'help.start()' for an HTML browser interface to help.
  43s Type 'q()' to quit R.
  43s  43s > # This file is part of the standard setup for testthat.
  43s > # It is recommended that you do not modify it.
  43s > #
  43s > # Where should you do additional test configuration?
  43s > # Learn more about the roles of various files in:
  43s > # * https://r-pkgs.org/tests.html
  43s > # * 
https://testthat.r-lib.org/reference/test_package.html#special-files
  43s >  43s > library(testthat)
  43s > library(s2)
  44s >  44s > test_check("s2")
  63s [ FAIL 1 | WARN 0 | SKIP 0 | PASS 1035 ]
  63s  63s ══ Failed tests 
════════════════════════════════════════════════════════════════
  63s ── Error ('test-s2-transformers.R:626:5'): real data survives the 
S2BooleanOperation ──
  63s Error in `wk_handle.wk_wkb(wkb, s2_geography_writer(oriented = 
oriented,  63s     check = check, tessellate_tol = if (planar) {
  63s         tessellate_tol_m/s2_earth_radius_meters()
  63s     } else {
  63s         Inf
  63s     }))`: Loop 7 is not valid: Edge 5 is degenerate (duplicate vertex)
  63s Backtrace:
  63s     ▆
  63s  1. └─s2::s2_geog_from_wkb(exported, oriented = TRUE) at 
test-s2-transformers.R:626:5
  63s  2.   ├─wk::wk_handle(...)
  63s  3.   └─wk:::wk_handle.wk_wkb(...)
  63s  63s [ FAIL 1 | WARN 0 | SKIP 0 | PASS 1035 ]
  63s Error: Test failures
  63s Execution halted
  64s autopkgtest [02:08:02]: test run-unit-test

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