Make sure CI install pytest (via pip3) and wrap pytest invocation with CMake option

Signed-off-by: hyi18 <[email protected]>

Author: hyi18

.github/workflows/ci.yml

@@ -65,7 +65,7 @@ jobs:
         shell: bash
         run: |
             sudo yum install --setopt=tsflags=nodocs -y eigen3-devel ceres-solver-devel json-devel
-            sudo python -m pip install nanobind
+            sudo python -m pip install nanobind pytest
 
       - name: Configure CMake
         # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
@@ -153,7 +153,7 @@ jobs:
         shell: bash
         run: |
             sudo yum install --setopt=tsflags=nodocs -y eigen3-devel ceres-solver-devel json-devel
-            sudo python -m pip install nanobind
+            sudo python -m pip install nanobind pytest
 
       - name: Configure CMake
         # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.

build_scripts/install_deps_linux.bash

@@ -10,3 +10,5 @@ time sudo apt-get -q -f install -y \
     libopencv-dev \
     openimageio-tools libopenimageio-dev \
     nanobind-dev
+
+pip3 install pytest

build_scripts/install_deps_mac.bash

@@ -3,3 +3,5 @@
 set -ex
 
 brew install ceres-solver nlohmann-json openimageio nanobind robin-map
+
+python3 -m pip install --break-system-packages pytest

build_scripts/install_deps_windows.bash

@@ -7,3 +7,5 @@ vcpkg install \
     nlohmann-json:x64-windows \
     openimageio:x64-windows \
     nanobind:x64-windows
+
+pip install pytest

tests/CMakeLists.txt

@@ -202,18 +202,27 @@ add_test ( NAME Test_ImageConverter COMMAND Test_ImageConverter )
 
 ################################################################################
 # Python tests
-find_program(PYTHON_EXECUTABLE python3)
-if(PYTHON_EXECUTABLE)
-    add_test(
-        NAME Test_Python_ImageConverter
-        COMMAND ${PYTHON_EXECUTABLE} -m pytest ${CMAKE_CURRENT_SOURCE_DIR}/python/test_image_converter.py -v
-        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    )
-
-    # Set environment for Python test to find the compiled module
-    set_tests_properties(Test_Python_ImageConverter PROPERTIES
-        ENVIRONMENT "PYTHONPATH=${CMAKE_BINARY_DIR}/src/bindings:$ENV{PYTHONPATH}"
-    )
+if(RTA_BUILD_PYTHON_BINDINGS)
+    find_program(PYTHON_EXECUTABLE python3)
+    if(PYTHON_EXECUTABLE)
+        add_test(
+            NAME Test_Python_ImageConverter
+            COMMAND ${PYTHON_EXECUTABLE} -m pytest ${CMAKE_CURRENT_SOURCE_DIR}/python/test_image_converter.py -v
+            WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        )
+
+        # Set environment for Python test to find the compiled module
+        # Handle both single-config (Linux/macOS) and multi-config (Windows) generators
+        if(WIN32)
+            set_tests_properties(Test_Python_ImageConverter PROPERTIES
+                ENVIRONMENT "PYTHONPATH=${CMAKE_BINARY_DIR}/src/bindings/Release;${CMAKE_BINARY_DIR}/src/bindings;$ENV{PYTHONPATH}"
+            )
+        else()
+            set_tests_properties(Test_Python_ImageConverter PROPERTIES
+                ENVIRONMENT "PYTHONPATH=${CMAKE_BINARY_DIR}/src/bindings:$ENV{PYTHONPATH}"
+            )
+        endif()
+    endif()
 endif()
 
 ################################################################################