mirror of
https://github.com/etcd-io/etcd.git
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4a5e9d1261
26 git mv mvcc wal auth etcdserver etcdmain proxy embed/ lease/ server 36 git mv go.mod go.sum server
54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package mvcc
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import (
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"bytes"
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"math"
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"reflect"
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"testing"
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)
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// TestRevision tests that revision could be encoded to and decoded from
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// bytes slice. Moreover, the lexicographical order of its byte slice representation
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// follows the order of (main, sub).
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func TestRevision(t *testing.T) {
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tests := []revision{
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// order in (main, sub)
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{},
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{main: 1, sub: 0},
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{main: 1, sub: 1},
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{main: 2, sub: 0},
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{main: math.MaxInt64, sub: math.MaxInt64},
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}
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bs := make([][]byte, len(tests))
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for i, tt := range tests {
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b := newRevBytes()
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revToBytes(tt, b)
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bs[i] = b
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if grev := bytesToRev(b); !reflect.DeepEqual(grev, tt) {
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t.Errorf("#%d: revision = %+v, want %+v", i, grev, tt)
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}
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}
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for i := 0; i < len(tests)-1; i++ {
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if bytes.Compare(bs[i], bs[i+1]) >= 0 {
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t.Errorf("#%d: %v (%+v) should be smaller than %v (%+v)", i, bs[i], tests[i], bs[i+1], tests[i+1])
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}
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}
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}
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