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 32 package proto 33 34 import ( 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 42 func 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
