github.com/matm/etcd@v0.3.1-0.20140328024009-5b4a473f1453/third_party/code.google.com/p/goprotobuf/proto/size2_test.go (about)

     1  // Go support for Protocol Buffers - Google's data interchange format
     2  //
     3  // Copyright 2012 The Go Authors.  All rights reserved.
     4  // http://code.google.com/p/goprotobuf/
     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  }