add test harness support for proxying, test_sdl_canvas_proxy passes

tests/runner.py

@@ -646,7 +646,7 @@ class BrowserCore(RunnerCore):
       });
 ''' % basename)
 
-  def btest(self, filename, expected=None, reference=None, force_c=False, reference_slack=0,
+  def btest(self, filename, expected=None, reference=None, force_c=False, reference_slack=0, manual_reference=False, post_build=None,
       args=[], outfile='test.html', message='.'): # TODO: use in all other tests
     # if we are provided the source and not a path, use that
     filename_is_src = '\n' in filename
@@ -663,9 +663,11 @@ class BrowserCore(RunnerCore):
       expected = [str(i) for i in range(0, reference_slack+1)]
       shutil.copyfile(filepath, temp_filepath)
       self.reftest(path_from_root('tests', reference))
-      args = args + ['--pre-js', 'reftest.js', '-s', 'GL_TESTING=1']
+      if not manual_reference:
+        args = args + ['--pre-js', 'reftest.js', '-s', 'GL_TESTING=1']
     Popen([PYTHON, EMCC, temp_filepath, '-o', outfile] + args).communicate()
     assert os.path.exists(outfile)
+    if post_build: post_build()
     if type(expected) is str: expected = [expected]
     self.run_browser(outfile, message, ['/report_result?' + e for e in expected])
 

tests/sdl_canvas_proxy.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <SDL/SDL.h>
+#include <emscripten.h>
 
 int main(int argc, char **argv) {
   SDL_Init(SDL_INIT_VIDEO);
@@ -17,8 +18,7 @@ int main(int argc, char **argv) {
 
   SDL_Quit();
 
-  printf("done.\n");
-
+  EM_ASM(window.close());
   return 0;
 }
 

tests/test_browser.py

@@ -628,7 +628,24 @@ If manually bisecting:
     self.run_browser('page.html', '', '/report_result?1')
 
   def test_sdl_canvas_proxy(self):
-    self.btest('sdl_canvas_proxy.c', '1', args=['--proxy-to-worker'])
+    def post():
+      html = open('test.html').read()
+      html = html.replace('</body>', '''
+<script>
+function assert(x, y) { if (!x) throw 'assertion failed ' + y }
+
+%s
+
+var windowClose = window.close;
+window.close = function() {
+  doReftest();
+  setTimeout(windowClose, 1000);
+};
+</script>
+</body>''' % open('reftest.js').read())
+      open('test.html', 'w').write(html)
+
+    self.btest('sdl_canvas_proxy.c', reference='sdl_canvas_proxy.png', args=['--proxy-to-worker'], manual_reference=True, post_build=post)
 
   def test_sdl_key(self):
     open(os.path.join(self.get_dir(), 'pre.js'), 'w').write('''