- added test for FS.syncfs functionality

tests/fs/test_idbfs_sync.c

@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <emscripten.h>
+
+#define EM_ASM_REEXPAND(x) EM_ASM(x)
+
+void success() {
+  int result = 1;
+  REPORT_RESULT();
+}
+
+int main() {
+  EM_ASM(
+    FS.mkdir('/working');
+    FS.mount(IDBFS, {}, '/working');
+  );
+
+#if FIRST
+  // store local files to backing IDB
+  EM_ASM_REEXPAND(
+    FS.writeFile('/working/waka.txt', 'az');
+    FS.writeFile('/working/moar.txt', SECRET);
+    FS.syncfs(function (err) {
+      assert(!err);
+
+      ccall('success', 'v', '', []);
+    });
+  );
+#else
+  // load files from backing IDB
+  EM_ASM_REEXPAND(
+    FS.syncfs(true, function (err) {
+      assert(!err);
+
+      var contents = FS.readFile('/working/waka.txt', { encoding: 'utf8' });
+      assert(contents === 'az');
+
+      var secret = FS.readFile('/working/moar.txt', { encoding: 'utf8' });
+      assert(secret === SECRET);
+
+      ccall('success', 'v', '', []);
+    });
+  );
+#endif
+
+  emscripten_exit_with_live_runtime();
+
+  return 0;
+}

tests/test_browser.py

@@ -880,6 +880,11 @@ keydown(100);keyup(100); // trigger the end
     self.btest('file_db.cpp', secret, args=['--preload-file', 'moar.txt']) # even with a file there, we load over it
     shutil.move('test.html', 'third.html')
 
+  def test_fs_idbfs_sync(self):
+    secret = str(time.time())
+    self.btest(path_from_root('tests', 'fs', 'test_idbfs_sync.c'), '1', force_c=True, args=['-DFIRST', '-DSECRET=\'' + secret + '\'', '-s', '''EXPORTED_FUNCTIONS=['_main', '_success']'''])
+    self.btest(path_from_root('tests', 'fs', 'test_idbfs_sync.c'), '1', force_c=True, args=['-DSECRET=\'' + secret + '\'', '-s', '''EXPORTED_FUNCTIONS=['_main', '_success']'''])
+
   def test_sdl_pumpevents(self):
     # key events should be detected using SDL_PumpEvents
     open(os.path.join(self.get_dir(), 'pre.js'), 'w').write('''