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Copyright (c) 2019 The Khronos Group Inc.
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Tests.startUnit = function () {
  var canvas = document.getElementById('gl');
  var gl = wrapGLContext(getGLContext(canvas));
  return [gl];
}

Tests.testReadPixels = function(gl) {
  var id = new Uint8Array(16 * 16 * 4);
  assertOk(function(){gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, id);});
  assertOk(function(){gl.readPixels(0,0,16,16,gl.RGBA, gl.UNSIGNED_BYTE, id);});
  assertOk(function(){gl.readPixels(15,15,1,1,gl.RGBA, gl.UNSIGNED_BYTE, id);});
}
Tests.testReadPixelsRGBA = function(gl) {
  gl.clearColor(1, 0, 1, 0);
  gl.clear(gl.COLOR_BUFFER_BIT);
  var id = new Uint8Array(4);
  gl.readPixels(1,2,1,1,gl.RGBA, gl.UNSIGNED_BYTE, id);
  assertArrayEquals([255, 0, 255, 0], id);
}

Tests.endUnit = function(gl) {
}

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