@Test
public void get_four_all() {

	ConfigPadding config = new ConfigPadding();
	config.x0=1;
	config.x1=2;
	config.y0=3;
	config.y1=4;
	Helper helper = new Helper(config);
	Tensor_F64 tensor = TensorFactory_F64.randomMM(rand,false,-1,1,    4,3,6,2);
	helper.setInput(tensor);
	// inside the physical tensor
	assertEquals(tensor.get(1,2,1,0),helper.get(1,2,4,1), DeepBoofConstants.TEST_TOL_F64);
	assertEquals(tensor.get(1,2,1,0),helper.get(new int[]{1,2,4,1}), DeepBoofConstants.TEST_TOL_F64);
	// in the border
	assertEquals(1.0+2.0,helper.get(1,2,0,0), DeepBoofConstants.TEST_TOL_F64);
	assertEquals(1.0+2.0,helper.get(new int[]{1,2,0,0}), DeepBoofConstants.TEST_TOL_F64);
}