1// Go support for Protocol Buffers - Google's data interchange format 2// 3// Copyright 2012 The Go Authors. All rights reserved. 4// https://github.com/golang/protobuf 5// 6// Redistribution and use in source and binary forms, with or without 7// modification, are permitted provided that the following conditions are 8// met: 9// 10// * Redistributions of source code must retain the above copyright 11// notice, this list of conditions and the following disclaimer. 12// * Redistributions in binary form must reproduce the above 13// copyright notice, this list of conditions and the following disclaimer 14// in the documentation and/or other materials provided with the 15// distribution. 16// * Neither the name of Google Inc. nor the names of its 17// contributors may be used to endorse or promote products derived from 18// this software without specific prior written permission. 19// 20// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 32package proto 33 34import ( 35 "math" 36 "testing" 37) 38 39// This is a separate file and package from size_test.go because that one uses 40// generated messages and thus may not be in package proto without having a circular 41// dependency, whereas this file tests unexported details of size.go. 42 43func TestVarintSize(t *testing.T) { 44 // Check the edge cases carefully. 45 testCases := []struct { 46 n uint64 47 size int 48 }{ 49 {0, 1}, 50 {1, 1}, 51 {127, 1}, 52 {128, 2}, 53 {16383, 2}, 54 {16384, 3}, 55 {math.MaxInt64, 9}, 56 {math.MaxInt64 + 1, 10}, 57 } 58 for _, tc := range testCases { 59 size := SizeVarint(tc.n) 60 if size != tc.size { 61 t.Errorf("sizeVarint(%d) = %d, want %d", tc.n, size, tc.size) 62 } 63 } 64} 65