github.com/ethereum/go-ethereum@v1.16.1/common/range_test.go (about)

     1  // Copyright 2025 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package common
    18  
    19  import (
    20  	"slices"
    21  	"testing"
    22  )
    23  
    24  func TestRangeIter(t *testing.T) {
    25  	r := NewRange[uint32](1, 7)
    26  	values := slices.Collect(r.Iter())
    27  	if !slices.Equal(values, []uint32{1, 2, 3, 4, 5, 6, 7}) {
    28  		t.Fatalf("wrong iter values: %v", values)
    29  	}
    30  
    31  	empty := NewRange[uint32](1, 0)
    32  	values = slices.Collect(empty.Iter())
    33  	if !slices.Equal(values, []uint32{}) {
    34  		t.Fatalf("wrong iter values: %v", values)
    35  	}
    36  }