CMakeLists.txt 15.6 KB
Newer Older
Jason Rhinelander's avatar
Jason Rhinelander committed
1
2
3
4
5
6
7
# CMakeLists.txt -- Build system for the pybind11 test suite
#
# Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.ch>
#
# All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.

8
cmake_minimum_required(VERSION 3.4)
9

10
# The `cmake_minimum_required(VERSION 3.4...3.18)` syntax does not work with
Henry Schreiner's avatar
Henry Schreiner committed
11
12
# some versions of VS that have a patched CMake 3.11. This forces us to emulate
# the behavior using the following workaround:
13
if(${CMAKE_VERSION} VERSION_LESS 3.18)
Henry Schreiner's avatar
Henry Schreiner committed
14
  cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
15
else()
Henry Schreiner's avatar
Henry Schreiner committed
16
  cmake_policy(VERSION 3.18)
17
18
endif()

19
20
21
22
23
24
25
26
# Only needed for CMake < 3.5 support
include(CMakeParseArguments)

# Filter out items; print an optional message if any items filtered
#
# Usage:
#   pybind11_filter_tests(LISTNAME file1.cpp file2.cpp ... MESSAGE "")
#
27
macro(pybind11_filter_tests LISTNAME)
28
29
30
31
32
33
34
35
36
37
38
39
40
41
  cmake_parse_arguments(ARG "" "MESSAGE" "" ${ARGN})
  set(PYBIND11_FILTER_TESTS_FOUND OFF)
  foreach(filename IN LISTS ARG_UNPARSED_ARGUMENTS)
    list(FIND ${LISTNAME} ${filename} _FILE_FOUND)
    if(_FILE_FOUND GREATER -1)
      list(REMOVE_AT ${LISTNAME} ${_FILE_FOUND})
      set(PYBIND11_FILTER_TESTS_FOUND ON)
    endif()
  endforeach()
  if(PYBIND11_FILTER_TESTS_FOUND AND ARG_MESSAGE)
    message(STATUS "${ARG_MESSAGE}")
  endif()
endmacro()

42
43
44
45
46
47
48
49
macro(possibly_uninitialized)
  foreach(VARNAME ${ARGN})
    if(NOT DEFINED "${VARNAME}")
      set("${VARNAME}" "")
    endif()
  endforeach()
endmacro()

50
51
52
53
54
55
# New Python support
if(DEFINED Python_EXECUTABLE)
  set(PYTHON_EXECUTABLE "${Python_EXECUTABLE}")
  set(PYTHON_VERSION "${Python_VERSION}")
endif()

56
57
# There's no harm in including a project in a project
project(pybind11_tests CXX)
Jason Rhinelander's avatar
Jason Rhinelander committed
58

Henry Schreiner's avatar
Henry Schreiner committed
59
60
61
# Access FindCatch and more
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/../tools")

Henry Schreiner's avatar
Henry Schreiner committed
62
option(PYBIND11_WERROR "Report all warnings as errors" OFF)
63
option(DOWNLOAD_EIGEN "Download EIGEN (requires CMake 3.11+)" OFF)
64
option(PYBIND11_CUDA_TESTS "Enable building CUDA tests (requires CMake 3.12+)" OFF)
Henry Schreiner's avatar
Henry Schreiner committed
65
66
67
set(PYBIND11_TEST_OVERRIDE
    ""
    CACHE STRING "Tests from ;-separated list of *.cpp files will be built instead of all tests")
68
69
70
set(PYBIND11_TEST_FILTER
    ""
    CACHE STRING "Tests from ;-separated list of *.cpp files will be removed from all tests")
Jason Rhinelander's avatar
Jason Rhinelander committed
71

72
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
Henry Schreiner's avatar
Henry Schreiner committed
73
74
75
  # We're being loaded directly, i.e. not via add_subdirectory, so make this
  # work as its own project and load the pybind11Config to get the tools we need
  find_package(pybind11 REQUIRED CONFIG)
Jason Rhinelander's avatar
Jason Rhinelander committed
76
77
endif()

78
if(NOT CMAKE_BUILD_TYPE AND NOT DEFINED CMAKE_CONFIGURATION_TYPES)
Dean Moldovan's avatar
Dean Moldovan committed
79
  message(STATUS "Setting tests build type to MinSizeRel as none was specified")
Henry Schreiner's avatar
Henry Schreiner committed
80
81
82
83
84
  set(CMAKE_BUILD_TYPE
      MinSizeRel
      CACHE STRING "Choose the type of build." FORCE)
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel"
                                               "RelWithDebInfo")
Dean Moldovan's avatar
Dean Moldovan committed
85
86
endif()

87
88
89
90
91
92
93
94
if(PYBIND11_CUDA_TESTS)
  enable_language(CUDA)
  if(DEFINED CMAKE_CXX_STANDARD)
    set(CMAKE_CUDA_STANDARD ${CMAKE_CXX_STANDARD})
  endif()
  set(CMAKE_CUDA_STANDARD_REQUIRED ON)
endif()

95
# Full set of test files (you can override these; see below)
Dean Moldovan's avatar
Dean Moldovan committed
96
set(PYBIND11_TEST_FILES
Henry Schreiner's avatar
Henry Schreiner committed
97
98
99
100
101
102
103
    test_async.cpp
    test_buffers.cpp
    test_builtin_casters.cpp
    test_call_policies.cpp
    test_callbacks.cpp
    test_chrono.cpp
    test_class.cpp
104
105
106
    test_class_sh_basic.cpp
    test_class_sh_inheritance.cpp
    test_class_sh_unique_ptr_member.cpp
Henry Schreiner's avatar
Henry Schreiner committed
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
    test_constants_and_functions.cpp
    test_copy_move.cpp
    test_custom_type_casters.cpp
    test_docstring_options.cpp
    test_eigen.cpp
    test_enum.cpp
    test_eval.cpp
    test_exceptions.cpp
    test_factory_constructors.cpp
    test_gil_scoped.cpp
    test_iostream.cpp
    test_kwargs_and_defaults.cpp
    test_local_bindings.cpp
    test_methods_and_attributes.cpp
    test_modules.cpp
    test_multiple_inheritance.cpp
    test_numpy_array.cpp
    test_numpy_dtypes.cpp
    test_numpy_vectorize.cpp
    test_opaque_types.cpp
    test_operator_overloading.cpp
    test_pickling.cpp
    test_pytypes.cpp
    test_sequences_and_iterators.cpp
    test_smart_ptr.cpp
    test_stl.cpp
    test_stl_binders.cpp
    test_tagbased_polymorphic.cpp
135
    test_type_caster_bare_interface.cpp
Henry Schreiner's avatar
Henry Schreiner committed
136
137
    test_union.cpp
    test_virtual_functions.cpp)
Dean Moldovan's avatar
Dean Moldovan committed
138

139
# Invoking cmake with something like:
140
#     cmake -DPYBIND11_TEST_OVERRIDE="test_callbacks.cpp;test_pickling.cpp" ..
141
142
# lets you override the tests that get compiled and run.  You can restore to all tests with:
#     cmake -DPYBIND11_TEST_OVERRIDE= ..
Henry Schreiner's avatar
Henry Schreiner committed
143
if(PYBIND11_TEST_OVERRIDE)
144
145
146
  set(PYBIND11_TEST_FILES ${PYBIND11_TEST_OVERRIDE})
endif()

147
148
149
150
151
152
153
154
# You can also filter tests:
if(PYBIND11_TEST_FILTER)
  pybind11_filter_tests(PYBIND11_TEST_FILES ${PYBIND11_TEST_FILTER})
endif()

if(PYTHON_VERSION VERSION_LESS 3.5)
  pybind11_filter_tests(PYBIND11_TEST_FILES test_async.cpp MESSAGE
                        "Skipping test_async on Python 2")
155
156
endif()

157
158
159
# Skip tests for CUDA check:
# /pybind11/tests/test_constants_and_functions.cpp(125):
#   error: incompatible exception specifications
160
161
162
163
if(PYBIND11_CUDA_TESTS)
  pybind11_filter_tests(
    PYBIND11_TEST_FILES test_constants_and_functions.cpp MESSAGE
    "Skipping test_constants_and_functions due to incompatible exception specifications")
164
165
endif()

166
string(REPLACE ".cpp" ".py" PYBIND11_PYTEST_FILES "${PYBIND11_TEST_FILES}")
167
list(APPEND PYBIND11_PYTEST_FILES test_class_sh_module_local.py)
168
list(SORT PYBIND11_PYTEST_FILES)
Dean Moldovan's avatar
Dean Moldovan committed
169

170
171
172
# Contains the set of test files that require pybind11_cross_module_tests to be
# built; if none of these are built (i.e. because TEST_OVERRIDE is used and
# doesn't include them) the second module doesn't get built.
Henry Schreiner's avatar
Henry Schreiner committed
173
174
set(PYBIND11_CROSS_MODULE_TESTS test_exceptions.py test_local_bindings.py test_stl.py
                                test_stl_binders.py)
175

Henry Schreiner's avatar
Henry Schreiner committed
176
set(PYBIND11_CROSS_MODULE_GIL_TESTS test_gil_scoped.py)
177

178
179
set(PYBIND11_CLASS_SH_MODULE_LOCAL_TESTS test_class_sh_module_local.py)

180
181
182
183
184
# Check if Eigen is available; if not, remove from PYBIND11_TEST_FILES (but
# keep it in PYBIND11_PYTEST_FILES, so that we get the "eigen is not installed"
# skip message).
list(FIND PYBIND11_TEST_FILES test_eigen.cpp PYBIND11_TEST_FILES_EIGEN_I)
if(PYBIND11_TEST_FILES_EIGEN_I GREATER -1)
Jason Rhinelander's avatar
Jason Rhinelander committed
185
186
187
  # Try loading via newer Eigen's Eigen3Config first (bypassing tools/FindEigen3.cmake).
  # Eigen 3.3.1+ exports a cmake 3.0+ target for handling dependency requirements, but also
  # produces a fatal error if loaded from a pre-3.0 cmake.
Henry Schreiner's avatar
Henry Schreiner committed
188
189
190
191
192
  if(DOWNLOAD_EIGEN)
    if(CMAKE_VERSION VERSION_LESS 3.11)
      message(FATAL_ERROR "CMake 3.11+ required when using DOWNLOAD_EIGEN")
    endif()

Henry Schreiner's avatar
Henry Schreiner committed
193
    set(EIGEN3_VERSION_STRING "3.3.8")
Henry Schreiner's avatar
Henry Schreiner committed
194
195
196
197
198

    include(FetchContent)
    FetchContent_Declare(
      eigen
      GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
Henry Schreiner's avatar
Henry Schreiner committed
199
      GIT_TAG ${EIGEN3_VERSION_STRING})
Henry Schreiner's avatar
Henry Schreiner committed
200
201
202
203
204
205
206
207
208

    FetchContent_GetProperties(eigen)
    if(NOT eigen_POPULATED)
      message(STATUS "Downloading Eigen")
      FetchContent_Populate(eigen)
    endif()

    set(EIGEN3_INCLUDE_DIR ${eigen_SOURCE_DIR})
    set(EIGEN3_FOUND TRUE)
209

Henry Schreiner's avatar
Henry Schreiner committed
210
  else()
211
212
    find_package(Eigen3 3.2.7 QUIET CONFIG)

Henry Schreiner's avatar
Henry Schreiner committed
213
    if(NOT EIGEN3_FOUND)
Henry Schreiner's avatar
Henry Schreiner committed
214
215
216
217
      # Couldn't load via target, so fall back to allowing module mode finding, which will pick up
      # tools/FindEigen3.cmake
      find_package(Eigen3 3.2.7 QUIET)
    endif()
Jason Rhinelander's avatar
Jason Rhinelander committed
218
  endif()
219
220

  if(EIGEN3_FOUND)
221
222
223
224
225
226
    if(NOT TARGET Eigen3::Eigen)
      add_library(Eigen3::Eigen IMPORTED INTERFACE)
      set_property(TARGET Eigen3::Eigen PROPERTY INTERFACE_INCLUDE_DIRECTORIES
                                                 "${EIGEN3_INCLUDE_DIR}")
    endif()

Jason Rhinelander's avatar
Jason Rhinelander committed
227
228
229
230
231
232
    # Eigen 3.3.1+ cmake sets EIGEN3_VERSION_STRING (and hard codes the version when installed
    # rather than looking it up in the cmake script); older versions, and the
    # tools/FindEigen3.cmake, set EIGEN3_VERSION instead.
    if(NOT EIGEN3_VERSION AND EIGEN3_VERSION_STRING)
      set(EIGEN3_VERSION ${EIGEN3_VERSION_STRING})
    endif()
233
234
235
    message(STATUS "Building tests with Eigen v${EIGEN3_VERSION}")
  else()
    list(REMOVE_AT PYBIND11_TEST_FILES ${PYBIND11_TEST_FILES_EIGEN_I})
236
237
    message(
      STATUS "Building tests WITHOUT Eigen, use -DDOWNLOAD_EIGEN=ON on CMake 3.11+ to download")
238
  endif()
Dean Moldovan's avatar
Dean Moldovan committed
239
240
endif()

241
242
# Optional dependency for some tests (boost::variant is only supported with version >= 1.56)
find_package(Boost 1.56)
243

244
245
if(Boost_FOUND)
  if(NOT TARGET Boost::headers)
246
    add_library(Boost::headers IMPORTED INTERFACE)
247
248
    if(TARGET Boost::boost)
      # Classic FindBoost
249
      set_property(TARGET Boost::boost PROPERTY INTERFACE_LINK_LIBRARIES Boost::boost)
250
251
252
253
254
255
256
257
    else()
      # Very old FindBoost, or newer Boost than CMake in older CMakes
      set_property(TARGET Boost::headers PROPERTY INTERFACE_INCLUDE_DIRECTORIES
                                                  ${Boost_INCLUDE_DIRS})
    endif()
  endif()
endif()

Jason Rhinelander's avatar
Jason Rhinelander committed
258
259
260
261
# Compile with compiler warnings turned on
function(pybind11_enable_warnings target_name)
  if(MSVC)
    target_compile_options(${target_name} PRIVATE /W4)
262
  elseif(CMAKE_CXX_COMPILER_ID MATCHES "(GNU|Intel|Clang)" AND NOT PYBIND11_CUDA_TESTS)
263
264
265
266
267
268
269
270
271
    target_compile_options(
      ${target_name}
      PRIVATE -Wall
              -Wextra
              -Wconversion
              -Wcast-qual
              -Wdeprecated
              -Wundef
              -Wnon-virtual-dtor)
Jason Rhinelander's avatar
Jason Rhinelander committed
272
273
274
275
276
  endif()

  if(PYBIND11_WERROR)
    if(MSVC)
      target_compile_options(${target_name} PRIVATE /WX)
277
278
    elseif(PYBIND11_CUDA_TESTS)
      target_compile_options(${target_name} PRIVATE "SHELL:-Werror all-warnings")
279
    elseif(CMAKE_CXX_COMPILER_ID MATCHES "(GNU|Intel|Clang)")
Jason Rhinelander's avatar
Jason Rhinelander committed
280
281
282
      target_compile_options(${target_name} PRIVATE -Werror)
    endif()
  endif()
283

284
  # Needs to be readded since the ordering requires these to be after the ones above
Henry Schreiner's avatar
Henry Schreiner committed
285
286
287
  if(CMAKE_CXX_STANDARD
     AND CMAKE_CXX_COMPILER_ID MATCHES "Clang"
     AND PYTHON_VERSION VERSION_LESS 3.0)
288
    if(CMAKE_CXX_STANDARD LESS 17)
289
      target_compile_options(${target_name} PUBLIC -Wno-deprecated-register)
290
    else()
291
292
293
      target_compile_options(${target_name} PUBLIC -Wno-register)
    endif()
  endif()
Jason Rhinelander's avatar
Jason Rhinelander committed
294
295
endfunction()

296
set(test_targets pybind11_tests)
Jason Rhinelander's avatar
Jason Rhinelander committed
297

298
299
300
# Build pybind11_cross_module_tests if any test_whatever.py are being built that require it
foreach(t ${PYBIND11_CROSS_MODULE_TESTS})
  list(FIND PYBIND11_PYTEST_FILES ${t} i)
Henry Schreiner's avatar
Henry Schreiner committed
301
  if(i GREATER -1)
302
303
304
305
    list(APPEND test_targets pybind11_cross_module_tests)
    break()
  endif()
endforeach()
306

307
308
foreach(t ${PYBIND11_CROSS_MODULE_GIL_TESTS})
  list(FIND PYBIND11_PYTEST_FILES ${t} i)
Henry Schreiner's avatar
Henry Schreiner committed
309
  if(i GREATER -1)
310
311
312
313
314
    list(APPEND test_targets cross_module_gil_utils)
    break()
  endif()
endforeach()

315
316
317
318
319
320
321
322
323
324
foreach(t ${PYBIND11_CLASS_SH_MODULE_LOCAL_TESTS})
  list(FIND PYBIND11_PYTEST_FILES ${t} i)
  if(i GREATER -1)
    list(APPEND test_targets class_sh_module_local_0)
    list(APPEND test_targets class_sh_module_local_1)
    list(APPEND test_targets class_sh_module_local_2)
    break()
  endif()
endforeach()

325
326
327
328
329
# Support CUDA testing by forcing the target file to compile with NVCC
if(PYBIND11_CUDA_TESTS)
  set_property(SOURCE ${PYBIND11_TEST_FILES} PROPERTY LANGUAGE CUDA)
endif()

330
foreach(target ${test_targets})
331
  set(test_files ${PYBIND11_TEST_FILES})
332
  if(NOT "${target}" STREQUAL "pybind11_tests")
333
334
    set(test_files "")
  endif()
Dean Moldovan's avatar
Dean Moldovan committed
335

336
337
338
339
340
  # Support CUDA testing by forcing the target file to compile with NVCC
  if(PYBIND11_CUDA_TESTS)
    set_property(SOURCE ${target}.cpp PROPERTY LANGUAGE CUDA)
  endif()

341
  # Create the binding library
342
343
  pybind11_add_module(${target} THIN_LTO ${target}.cpp ${test_files} ${PYBIND11_HEADERS})
  pybind11_enable_warnings(${target})
344

345
346
347
348
349
350
351
352
353
354
355
356
  if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
    get_property(
      suffix
      TARGET ${target}
      PROPERTY SUFFIX)
    set(source_output "${CMAKE_CURRENT_SOURCE_DIR}/${target}${suffix}")
    if(suffix AND EXISTS "${source_output}")
      message(WARNING "Output file also in source directory; "
                      "please remove to avoid confusion: ${source_output}")
    endif()
  endif()

357
  if(MSVC)
358
    target_compile_options(${target} PRIVATE /utf-8)
Jason Rhinelander's avatar
Jason Rhinelander committed
359
  endif()
Dean Moldovan's avatar
Dean Moldovan committed
360

361
  if(EIGEN3_FOUND)
362
    target_link_libraries(${target} PRIVATE Eigen3::Eigen)
363
364
365
366
    target_compile_definitions(${target} PRIVATE -DPYBIND11_TEST_EIGEN)
  endif()

  if(Boost_FOUND)
367
    target_link_libraries(${target} PRIVATE Boost::headers)
368
    target_compile_definitions(${target} PRIVATE -DPYBIND11_TEST_BOOST)
369
  endif()
Dean Moldovan's avatar
Dean Moldovan committed
370

371
372
  # Always write the output file directly into the 'tests' directory (even on MSVC)
  if(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
373
374
    set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY
                                               "${CMAKE_CURRENT_BINARY_DIR}")
375
376
377
378
379
380
381
382

    if(DEFINED CMAKE_CONFIGURATION_TYPES)
      foreach(config ${CMAKE_CONFIGURATION_TYPES})
        string(TOUPPER ${config} config)
        set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY_${config}
                                                   "${CMAKE_CURRENT_BINARY_DIR}")
      endforeach()
    endif()
383
384
  endif()
endforeach()
Dean Moldovan's avatar
Dean Moldovan committed
385

386
# Make sure pytest is found or produce a warning
387
pybind11_find_import(pytest VERSION 3.1)
388

389
390
391
392
393
394
395
396
397
398
399
if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
  # This is not used later in the build, so it's okay to regenerate each time.
  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/pytest.ini" "${CMAKE_CURRENT_BINARY_DIR}/pytest.ini"
                 COPYONLY)
  file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/pytest.ini"
       "\ntestpaths = \"${CMAKE_CURRENT_SOURCE_DIR}\"")

endif()

# cmake 3.12 added list(transform <list> prepend
# but we can't use it yet
400
string(REPLACE "test_" "${CMAKE_CURRENT_SOURCE_DIR}/test_" PYBIND11_ABS_PYTEST_FILES
401
402
               "${PYBIND11_PYTEST_FILES}")

403
404
405
406
set(PYBIND11_TEST_PREFIX_COMMAND
    ""
    CACHE STRING "Put this before pytest, use for checkers and such")

Dean Moldovan's avatar
Dean Moldovan committed
407
# A single command to compile and run the tests
Henry Schreiner's avatar
Henry Schreiner committed
408
409
add_custom_target(
  pytest
410
411
  COMMAND ${PYBIND11_TEST_PREFIX_COMMAND} ${PYTHON_EXECUTABLE} -m pytest
          ${PYBIND11_ABS_PYTEST_FILES}
Henry Schreiner's avatar
Henry Schreiner committed
412
  DEPENDS ${test_targets}
413
  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
Henry Schreiner's avatar
Henry Schreiner committed
414
  USES_TERMINAL)
415

416
if(PYBIND11_TEST_OVERRIDE)
Henry Schreiner's avatar
Henry Schreiner committed
417
418
419
420
421
  add_custom_command(
    TARGET pytest
    POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E echo
            "Note: not all tests run: -DPYBIND11_TEST_OVERRIDE is in effect")
422
423
endif()

424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
# cmake-format: off
add_custom_target(
  memcheck
  COMMAND
    PYTHONMALLOC=malloc
    valgrind
    --leak-check=full
    --show-leak-kinds=definite,indirect
    --errors-for-leak-kinds=definite,indirect
    --error-exitcode=1
    --read-var-info=yes
    --track-origins=yes
    --suppressions="${CMAKE_CURRENT_SOURCE_DIR}/valgrind-python.supp"
    --suppressions="${CMAKE_CURRENT_SOURCE_DIR}/valgrind-numpy-scipy.supp"
    --gen-suppressions=all
    ${PYTHON_EXECUTABLE} -m pytest ${PYBIND11_ABS_PYTEST_FILES}
  DEPENDS ${test_targets}
  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
  USES_TERMINAL)
# cmake-format: on

Jason Rhinelander's avatar
Jason Rhinelander committed
445
446
447
448
449
# Add a check target to run all the tests, starting with pytest (we add dependencies to this below)
add_custom_target(check DEPENDS pytest)

# The remaining tests only apply when being built as part of the pybind11 project, but not if the
# tests are being built independently.
450
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
Jason Rhinelander's avatar
Jason Rhinelander committed
451
452
453
  return()
endif()

454
# Add a post-build comment to show the primary test suite .so size and, if a previous size, compare it:
455
add_custom_command(
Henry Schreiner's avatar
Henry Schreiner committed
456
457
458
459
  TARGET pybind11_tests
  POST_BUILD
  COMMAND
    ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../tools/libsize.py
460
461
    $<TARGET_FILE:pybind11_tests>
    ${CMAKE_CURRENT_BINARY_DIR}/sosize-$<TARGET_FILE_NAME:pybind11_tests>.txt)
462

463
464
465
if(NOT PYBIND11_CUDA_TESTS)
  # Test embedding the interpreter. Provides the `cpptest` target.
  add_subdirectory(test_embed)
466

467
468
469
  # Test CMake build using functions and targets from subdirectory or installed location
  add_subdirectory(test_cmake_build)
endif()