0, 1, 1, [0, 0, 0, 255], "sampling depth from incomplete texture", 1);
                                }
                            } else {
                                wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "sampling depth using incompatible program");
                            }
                        } else {
                            if (program[1] == 'stencil') {
                                wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
                               