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 "testing" 36) 37 38// This is a separate file and package from size_test.go because that one uses 39// generated messages and thus may not be in package proto without having a circular 40// dependency, whereas this file tests unexported details of size.go. 41 42func TestVarintSize(t *testing.T) { 43 // Check the edge cases carefully. 44 testCases := []struct { 45 n uint64 46 size int 47 }{ 48 {0, 1}, 49 {1, 1}, 50 {127, 1}, 51 {128, 2}, 52 {16383, 2}, 53 {16384, 3}, 54 {1<<63 - 1, 9}, 55 {1 << 63, 10}, 56 } 57 for _, tc := range testCases { 58 size := SizeVarint(tc.n) 59 if size != tc.size { 60 t.Errorf("sizeVarint(%d) = %d, want %d", tc.n, size, tc.size) 61 } 62 } 63} 64