| // Copyright 2012 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package proto |
| |
| import ( |
| "math" |
| "testing" |
| ) |
| |
| // This is a separate file and package from size_test.go because that one uses |
| // generated messages and thus may not be in package proto without having a circular |
| // dependency, whereas this file tests unexported details of size.go. |
| |
| func TestVarintSize(t *testing.T) { |
| // Check the edge cases carefully. |
| testCases := []struct { |
| n uint64 |
| size int |
| }{ |
| {0, 1}, |
| {1, 1}, |
| {127, 1}, |
| {128, 2}, |
| {16383, 2}, |
| {16384, 3}, |
| {math.MaxInt64, 9}, |
| {math.MaxInt64 + 1, 10}, |
| } |
| for _, tc := range testCases { |
| size := SizeVarint(tc.n) |
| if size != tc.size { |
| t.Errorf("sizeVarint(%d) = %d, want %d", tc.n, size, tc.size) |
| } |
| } |
| } |