Added test to make sure channel allocation failed when it

was exhausted.

To run it:

    python tests/runner.py browser.test_sdl_audio_mix_channels

2 files changed, 66 insertions, 0 deletions

diff --git a/tests/runner.py b/tests/runner.py
index 610a39f6..1b4b1f0f 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -12401,6 +12401,13 @@ elif 'browser' in str(sys.argv):
       Popen([PYTHON, EMCC, '-O2', '--closure', '1', '--minify', '0', os.path.join(self.get_dir(), 'sdl_audio.c'), '--preload-file', 'sound.ogg', '--preload-file', 'sound2.wav', '--preload-file', 'bad.ogg', '-o', 'page.html', '-s', 'EXPORTED_FUNCTIONS=["_main", "_play", "_play2"]']).communicate()
       self.run_browser('page.html', '', '/report_result?1')
 
+    def test_sdl_audio_mix_channels(self):
+      shutil.copyfile(path_from_root('tests', 'sounds', 'noise.ogg'), os.path.join(self.get_dir(), 'sound.ogg'))
+      open(os.path.join(self.get_dir(), 'sdl_audio_mix_channels.c'), 'w').write(self.with_report_result(open(path_from_root('tests', 'sdl_audio_mix_channels.c')).read()))
+
+      Popen([PYTHON, EMCC, '-O2', '--minify', '0', os.path.join(self.get_dir(), 'sdl_audio_mix_channels.c'), '--preload-file', 'sound.ogg', '-o', 'page.html']).communicate()
+      self.run_browser('page.html', '', '/report_result?1')
+
     def test_sdl_audio_mix(self):
       shutil.copyfile(path_from_root('tests', 'sounds', 'pluck.ogg'), os.path.join(self.get_dir(), 'sound.ogg'))
       shutil.copyfile(path_from_root('tests', 'sounds', 'the_entertainer.ogg'), os.path.join(self.get_dir(), 'music.ogg'))
diff --git a/tests/sdl_audio_mix_channels.c b/tests/sdl_audio_mix_channels.c
new file mode 100644
index 00000000..dd91d594
--- /dev/null
+++ b/tests/sdl_audio_mix_channels.c
@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_mixer.h>
+#include <assert.h>
+#include <emscripten.h>
+
+static Mix_Chunk *sound = NULL;
+static Mix_Chunk *noiseLoop = NULL;
+static Mix_Music *music = NULL;
+
+static int soundChannel = 0;
+static int noiseLoopChannel = 0;
+
+static const int kNumChannels = 40;
+
+static int loadAndPlay()
+{
+  return Mix_PlayChannel(-1, sound, -1);
+}
+
+int main(int argc, char **argv) {
+  SDL_Init(SDL_INIT_AUDIO);
+  Mix_Init(MIX_INIT_OGG);
+
+  int ret = Mix_OpenAudio(0, 0, 0, 0); // we ignore all these..
+  assert(ret == 0);
+
+  Mix_AllocateChannels(kNumChannels);
+
+  sound = Mix_LoadWAV("sound.ogg");
+
+  // allocate all the channels
+  for ( int i = 0; i < kNumChannels; i++ )
+  {
+    assert(loadAndPlay() != -1);
+  }
+
+    // This point, we should have exhausted our channels
+
+
+
+
+  int lastChannel = loadAndPlay();
+
+#if EMSCRIPTEN
+  int result = (lastChannel == -1);
+  REPORT_RESULT();
+#endif
+
+  assert(lastChannel == -1);
+
+  // force a quit
+  while(Mix_Init(0))
+    Mix_Quit();
+  Mix_CloseAudio();
+
+  return 0;
+}
+