s2builderutil_lax_polygon_layer_test/googletest: build fails on Ubuntu 22.04

[benstadin]

One of the tests won't compile with the latest version on Ubuntu 22.04. Neither with the mentioned googletest version 1.10.0 nor the current 1.14.0 release. The error is in s2builderutil_lax_polygon_layer_test:

In file included from /root/googletest/googlemock/include/gmock/gmock-spec-builders.h:75,
from /root/googletest/googlemock/include/gmock/gmock-generated-function-mockers.h:47,
from /root/googletest/googlemock/include/gmock/gmock-function-mocker.h:39,
from /root/googletest/googlemock/include/gmock/gmock.h:61,
from /root/s2geometry/src/s2/s2builderutil_lax_polygon_layer_test.cc:26:
/root/googletest/googlemock/include/gmock/gmock-matchers.h: In instantiation of 'bool testing::internal::ElementsAreMatcherImpl::MatchAndExplain(Container, testing::MatchResultListener*) const [with Container = const IdSetLexicon::IdSet&]':
/root/googletest/googlemock/include/gmock/gmock-matchers.h:2747:8: required from here
/root/googletest/googlemock/include/gmock/gmock-matchers.h:2757:43: error: no type named 'const_iterator' in 'testing::internal::ElementsAreMatcherImpl<const IdSetLexicon::IdSet&>::StlContainer' {aka 'class IdSetLexicon::IdSet'}
2757 | typename StlContainer::const_iterator it = stl_container.begin();
| ^~
/root/googletest/googlemock/include/gmock/gmock-matchers.h:2757:43: error: no type named 'const_iterator' in 'testing::internal::ElementsAreMatcherImpl<const IdSetLexicon::IdSet&>::StlContainer' {aka 'class IdSetLexicon::IdSet'}
/root/s2geometry/src/s2/s2builderutil_snap_functions_test.cc: In function 'double GetS2CellIdMinVertexSeparation(int, absl::lts_20240116::flat_hash_set*)':

[jmr]

Let's wait until the "which code is it?" question from the other issues is resolved before worrying too much about this one.

[benstadin]

This is on the master branch. Steps to reproduce (I'm using an Ubuntu 22.04 Docker Image):

git clone https://github.com/google/s2geometry.git
cd s2geometry
git clone https://github.com/google/googletest.git -b release-1.10.0
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=17 -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=/usr/local -DBUILD_SHARED_LIBS=OFF -Dabsl_DIR=/usr/local/lib -DGOOGLETEST_ROOT="/root/tmp/s2geometry/googletest" ..
make -j8

[jmr]

I'm actually using the Debian googletest-1.14.0-1, and it works. Do you get the same error message from 1.14.0?

[benstadin]

I've answered that in the other issue (and sorry, I should have consolidated the issues into a single one). Though the build instructions from the readme won't work on Ubuntu 22.04 either way, because for whatever reason gmock is missing in the Ubuntu package (if I remember correctly the version there is otherwise 1.11.0). Even though gtest is found cmake complains right away that gmock isn't available when the system package is used.

[jmr]

Then the instructions about the required version number are probably wrong, as well as the package instructions for Ubunto. google-mock needs to be installed separately. Can you install google-mock and see if it works with 1.11 or 1.14?

[benstadin]

The build fails at the same place with googletest and gmock installed via apt (the Ubuntu package version for both is 1.11.0-3). Since I get the same "wrong number of arguments" error on alpine 3.19 when using a recent googletest version as with ubuntu 22.04 I assume installing a different version on Ubuntu via apt from alternative sources would not make a difference.

sudo apt-get install cmake googletest libssl-dev libgmock-dev
git clone https://github.com/google/s2geometry.git
cd s2geometry
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=17 -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX:PATH=/usr/local -DBUILD_SHARED_LIBS=OFF -Dabsl_DIR=/usr/local/lib -DGOOGLETEST_ROOT=/usr/src/googletest ..

make -j8

[...]

In file included from /usr/src/googletest/googlemock/include/gmock/gmock-spec-builders.h:75,
                 from /usr/src/googletest/googlemock/include/gmock/gmock-function-mocker.h:42,
                 from /usr/src/googletest/googlemock/include/gmock/gmock.h:61,
                 from /root/tmp3/s2geometry/src/s2/s2builderutil_lax_polygon_layer_test.cc:26:
/usr/src/googletest/googlemock/include/gmock/gmock-matchers.h: In instantiation of 'bool testing::internal::ElementsAreMatcherImpl<Container>::MatchAndExplain(Container, testing::MatchResultListener*) const [with Container = const IdSetLexicon::IdSet&]':
/usr/src/googletest/googlemock/include/gmock/gmock-matchers.h:3228:8:   required from here
/usr/src/googletest/googlemock/include/gmock/gmock-matchers.h:3238:43: error: no type named 'const_iterator' in 'testing::internal::ElementsAreMatcherImpl<const IdSetLexicon::IdSet&>::StlContainer' {aka 'class IdSetLexicon::IdSet'}
 3238 |     typename StlContainer::const_iterator it = stl_container.begin();
      |                                           ^~
/usr/src/googletest/googlemock/include/gmock/gmock-matchers.h:3238:43: error: no type named 'const_iterator' in 'testing::internal::ElementsAreMatcherImpl<const IdSetLexicon::IdSet&>::StlContainer' {aka 'class IdSetLexicon::IdSet'}

Edit: By the way, for testing the above I used a shell into blank docker container. This may be a quick way to reproduce the issue:
docker run -it ubuntu:22.04 /bin/bash

(build tools and git need to be installed still)