github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/roachpb/version_test.go (about)

     1  // Copyright 2017 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  package roachpb
    12  
    13  import (
    14  	"testing"
    15  
    16  	"github.com/kr/pretty"
    17  )
    18  
    19  func TestVersionLess(t *testing.T) {
    20  	v := func(major, minor, patch, unstable int32) Version {
    21  		return Version{
    22  			Major:    major,
    23  			Minor:    minor,
    24  			Patch:    patch,
    25  			Unstable: unstable,
    26  		}
    27  	}
    28  	testData := []struct {
    29  		v1, v2 Version
    30  		less   bool
    31  	}{
    32  		{v1: Version{}, v2: Version{}, less: false},
    33  		{v1: v(0, 0, 0, 0), v2: v(0, 0, 0, 1), less: true},
    34  		{v1: v(0, 0, 0, 2), v2: v(0, 0, 0, 1), less: false},
    35  		{v1: v(0, 0, 1, 0), v2: v(0, 0, 0, 1), less: false},
    36  		{v1: v(0, 0, 1, 0), v2: v(0, 0, 0, 2), less: false},
    37  		{v1: v(0, 0, 1, 1), v2: v(0, 0, 1, 1), less: false},
    38  		{v1: v(0, 0, 1, 0), v2: v(0, 0, 1, 1), less: true},
    39  		{v1: v(0, 1, 1, 0), v2: v(0, 1, 0, 1), less: false},
    40  		{v1: v(0, 1, 0, 1), v2: v(0, 1, 1, 0), less: true},
    41  		{v1: v(1, 0, 0, 0), v2: v(1, 1, 0, 0), less: true},
    42  		{v1: v(1, 1, 0, 1), v2: v(1, 1, 0, 0), less: false},
    43  		{v1: v(1, 1, 0, 1), v2: v(1, 2, 0, 0), less: true},
    44  		{v1: v(2, 1, 0, 0), v2: v(19, 1, 0, 0), less: true},
    45  		{v1: v(19, 1, 0, 0), v2: v(19, 2, 0, 0), less: true},
    46  		{v1: v(19, 2, 0, 0), v2: v(20, 1, 0, 0), less: true},
    47  	}
    48  
    49  	for _, test := range testData {
    50  		t.Run("", func(t *testing.T) {
    51  			if a, e := test.v1.Less(test.v2), test.less; a != e {
    52  				t.Errorf("expected %s < %s? %t; got %t", pretty.Sprint(test.v1), pretty.Sprint(test.v2), e, a)
    53  			}
    54  		})
    55  	}
    56  }