Convert ctests into another test sources that can be compiled in Android test.

The existing ctests cannot be simply used in Android tests because
everything is compiled as standalone executable with `main()` function.
Since Android 11+ does not support standalone executables, those test
`main()` functions are converted as unique functions and then picked up
in this test's native-lib CMakeLists.txt.

Since those tests depend on libfluidsynth internals, we cannot simply
link with libfluidsynth.so. We instead compile the library with OBJ files.

test-android/.gitignore

@@ -13,3 +13,9 @@
 .externalNativeBuild
 .cxx
 local.properties
+.idea
+
+app/src/main/cpp/include/
+app/src/main/cpp/tests/
+app/src/main/jniLibs/
+

test-android/app/src/main/cpp/CMakeLists.txt

@@ -16,6 +16,14 @@ set (TEST_SRC_DIR ../../../../../test)
 # You can define multiple libraries, and CMake builds them for you.
 # Gradle automatically packages shared libraries with your APK.
 
+AUX_SOURCE_DIRECTORY(tests TEST_SRC_FILES)
+FILE(GLOB LINKED_OBJ_FILES ../../../../../build_${CMAKE_ANDROID_ARCH_ABI}/src/CMakeFiles/libfluidsynth-OBJ.dir/**/*.o)
+
+message("-----------------------TEST_SRC_FILES---------------------------")
+message("${TEST_SRC_FILES}")
+message("-----------------------LINKED_OBJ_FILES---------------------------")
+message("${LINKED_OBJ_FILES}")
+
 add_library( # Sets the name of the library.
              native-lib
 
@@ -23,41 +31,9 @@ add_library( # Sets the name of the library.
              SHARED
 
              # Provides a relative path to your source file(s).
-            ../../../../../test/test_bug_635.c
+             ${TEST_SRC_FILES}
+             ${LINKED_OBJ_FILES}
         )
-if (FALSE)
-    add_library( # Sets the name of the library.
-            native-lib
-
-            # Sets the library as a shared library.
-            SHARED
-
-            # Provides a relative path to your source file(s).
-            ../../../../../test/test_bug_635.c
-            ../../../../../test/test_ct2hz.c
-            #../../../../../test/test_jack_obtaining_synth.c
-            ../../../../../test/test_pointer_alignment.c
-            ../../../../../test/test_preset_pinning.c
-            ../../../../../test/test_preset_sample_loading.c
-            ../../../../../test/test_sample_cache.c
-            ../../../../../test/test_sample_rate_change.c
-            ../../../../../test/test_sample_validate.c
-            ../../../../../test/test_seqbind_unregister.c
-            ../../../../../test/test_seq_event_queue_remove.c
-            ../../../../../test/test_seq_event_queue_sort.c
-            ../../../../../test/test_seq_evt_order.c
-            ../../../../../test/test_seq_scale.c
-            ../../../../../test/test_settings_unregister_callback.c
-            ../../../../../test/test_sf3_sfont_loading.c
-            ../../../../../test/test_sfont_loading.c
-            ../../../../../test/test_sfont_unloading.c
-            ../../../../../test/test_sfont_zone.c
-            ../../../../../test/test_snprintf.c
-            ../../../../../test/test_synth_chorus_reverb.c
-            ../../../../../test/test_synth_process.c
-            ../../../../../test/test_utf8_open.c
-        )
-endif()
 
 target_include_directories(native-lib
         PRIVATE
@@ -68,11 +44,13 @@ target_include_directories(native-lib
         ../../../../build-scripts/android-build-root/${CMAKE_ANDROID_ARCH_ABI}/opt/android/lib/glib-2.0/include
         ../../../../../src
         ../../../../../src/bindings
+        ../../../../../src/drivers
         ../../../../../src/midi
         ../../../../../src/rvoice
         ../../../../../src/sfloader
         ../../../../../src/synth
         ../../../../../src/utils
+        ../../../../../test
         )
 
 # Searches for a specified prebuilt library and stores the path as a
@@ -99,5 +77,11 @@ target_link_directories(native-lib
 
 target_link_libraries(native-lib
         ${log-lib}
-        fluidsynth
+        c++
+        gobject-2.0
+        glib-2.0
+        sndfile
+        instpatch-1.0
+        OpenSLES
+        oboe
         )

test-android/build-scripts/.gitignore

@@ -0,0 +1,5 @@
+android-build-root/
+archives/
+build-artifacts/
+wget-log
+

test-android/convert-tests.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+for f in `grep -lR "int main(void)" ../test/` ; do  export TESTMAINNAME=`echo $f | sed -e "s/\.\.\/test\/test_\(.*\).c$/\1/"` && sed -e "s/int main(void)/int "$TESTMAINNAME"_main(void)/" $f > app/src/main/cpp/tests/test_$TESTMAINNAME.c ; done
+