Clarify platforms where unit tests not supported.

.github/workflows/web.yml

@@ -91,7 +91,7 @@ jobs:
       FEATURE_JNI: ${{ matrix.options.jni }}
       FEATURE_LOADTESTS: ${{ matrix.options.loadtests }}
       FEATURE_PY: ${{ matrix.options.py }}
-      FEATURE_TESTS: ${{ matrix.options.tests && matrix.options.tests || 'ON' }}
+      FEATURE_TESTS: ${{ matrix.options.tests && matrix.options.tests || 'OFF' }}
       FEATURE_TOOLS: ${{ matrix.options.tools }}
       FEATURE_TOOLS_CTS: ${{ matrix.options.tools_cts }}
       PACKAGE: ${{ matrix.options.package && matrix.options.package || 'NO' }}

CMakeLists.txt

@@ -49,9 +49,6 @@ option( KTX_FEATURE_ETC_UNPACK "ETC decoding support." ON )
 if(KTX_FEATURE_TOOLS_CTS AND NOT KTX_FEATURE_TOOLS)
     message(WARNING "KTX_FEATURE_TOOLS is not set -> disabling KTX_FEATURE_TOOLS_CTS.")
     set(KTX_FEATURE_TOOLS_CTS "OFF")
-elseif(KTX_FEATURE_TOOLS_CTS AND NOT KTX_FEATURE_TESTS)
-    message(WARNING "KTX_FEATURE_TESTS is not set -> disabling KTX_FEATURE_TOOLS_CTS.")
-    set(KTX_FEATURE_TOOLS_CTS "OFF")
 endif()
 
 if(POLICY CMP0127)
@@ -261,6 +258,14 @@ if(KTX_GENERATE_VK_FILES)
 endif()
 
 # EMSCRIPTEN is not set until project so all these must be after.
+if(APPLE_LOCKED_OS OR ANDROID OR EMSCRIPTEN)
+    message(WARNING "Building unit tests for Android, Apple locked OSes or the web is not supported -> disabling KTX_FEATURE_TESTS.")
+    set(KTX_FEATURE_TESTS "OFF")
+endif()
+if(KTX_FEATURE_TOOLS_CTS AND NOT KTX_FEATURE_TESTS)
+    message(WARNING "KTX_FEATURE_TESTS is not set -> disabling KTX_FEATURE_TOOLS_CTS.")
+    set(KTX_FEATURE_TOOLS_CTS "OFF")
+endif()
 if(APPLE_LOCKED_OS OR EMSCRIPTEN)
     set( LIB_TYPE_DEFAULT OFF )
 else()

scripts/build_android.sh

@@ -31,6 +31,7 @@ cmake_args=("-G" "Ninja" \
   "-D" "CMAKE_BUILD_TYPE=$CONFIGURATION" \
   "-D" "BASISU_SUPPORT_SSE=OFF" \
   "-D" "${ASTCENC_ISA}"
+  "-D" "KTX_FEATURE_TESTS=OFF"
   "-D" "KTX_WERROR=$WERROR"
 )
 

scripts/build_wasm_docker.sh

@@ -65,6 +65,7 @@ FEATURE_DOC=${FEATURE_DOC:-OFF}
 FEATURE_JNI=${FEATURE_JNI:-OFF}
 FEATURE_LOADTESTS=${FEATURE_LOADTESTS:-OpenGL}
 FEATURE_PY=${FEATURE_PY:-OFF}
+FEATURE_TESTS=${FEATURE_TESTS:-OFF}
 FEATURE_TOOLS=${FEATURE_TOOLS:-OFF}
 PACKAGE=${PACKAGE:-NO}
 SUPPORT_SSE=OFF
@@ -135,10 +136,11 @@ fi
 
 docker exec emscripten sh -c "emcmake cmake -B$BUILD_DIR . \
     -D CMAKE_BUILD_TYPE=$CONFIGURATION \
-    -D KTX_FEATURE_DOC=OFF \
-    -D KTX_FEATURE_JNI=OFF \
+    -D KTX_FEATURE_DOC=$FEATURE_DOC \
+    -D KTX_FEATURE_JNI=$FEATURE_JNI \
     -D KTX_FEATURE_LOADTEST_APPS=$FEATURE_LOADTESTS \
-    -D KTX_FEATURE_TOOLS=OFF \
+    -D KTX_FEATURE_TESTS=$FEATURE_TESTS \
+    -D KTX_FEATURE_TOOLS=$FEATURE_TOOLS \
     -D KTX_WERROR=$WERROR \
   && cmake --build $BUILD_DIR $targets $verbose_make"
 

tests/CMakeLists.txt

@@ -20,7 +20,7 @@ if(KTX_FEATURE_LOADTEST_APPS)
 endif()
 
 # gtest based unit-tests
-if(KTX_FEATURE_TESTS AND NOT APPLE_LOCKED_OS AND NOT ANDROID AND NOT EMSCRIPTEN)
+if(KTX_FEATURE_TESTS)
     # Used by texturetests as well as CTS.
     add_subdirectory(ktxdiff)
     set(KTX_DIFF_PATH $<TARGET_FILE:ktxdiff>)