buffer tests

• test bufferData with size13ms ‣

  const {gl} = createContext();
  const tracker = new MemInfoTracker(gl, 'buffer');
  const buf1 = gl.createBuffer();
  tracker.addObjects(1);
  gl.bindBuffer(gl.ARRAY_BUFFER, buf1);
  const size1 = 26;
  gl.bufferData(gl.ARRAY_BUFFER, size1, gl.STATIC_DRAW);
  tracker.addMemory(size1);
  const size1a = 38;
  gl.bufferData(gl.ARRAY_BUFFER, size1a, gl.STATIC_DRAW);
  tracker.addMemory(size1a - size1);
  const buf2 = gl.createBuffer();
  tracker.addObjects(1);
  gl.bindBuffer(gl.ARRAY_BUFFER, buf2);
  const size2 = 55;
  gl.bufferData(gl.ARRAY_BUFFER, size2, gl.STATIC_DRAW);
  tracker.addMemory(size2);
  gl.deleteBuffer(buf1);
  tracker.deleteObjectAndMemory(size1a);
  gl.deleteBuffer(buf2);
  tracker.deleteObjectAndMemory(size2);