github.com/Lephar/snapd@v0.0.0-20210825215435-c7fba9cef4d2/strutil/version_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2014-2015 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package strutil_test
    21  
    22  import (
    23  	"fmt"
    24  
    25  	. "gopkg.in/check.v1"
    26  
    27  	"github.com/snapcore/snapd/strutil"
    28  )
    29  
    30  type VersionTestSuite struct{}
    31  
    32  var _ = Suite(&VersionTestSuite{})
    33  
    34  func (s *VersionTestSuite) TestVersionCompare(c *C) {
    35  	for _, t := range []struct {
    36  		A, B string
    37  		res  int
    38  		err  error
    39  	}{
    40  		{"20000000000000000000", "020000000000000000000", 0, nil},
    41  		{"1.0", "2.0", -1, nil},
    42  		{"1.3", "1.2.2.2", 1, nil},
    43  		{"1.3", "1.3.1", -1, nil},
    44  		{"1.0", "1.0~", 1, nil},
    45  		{"7.2p2", "7.2", 1, nil},
    46  		{"0.4a6", "0.4", 1, nil},
    47  		{"0pre", "0pre", 0, nil},
    48  		{"0pree", "0pre", 1, nil},
    49  		{"1.18.36:5.4", "1.18.36:5.5", -1, nil},
    50  		{"1.18.36:5.4", "1.18.37:1.1", -1, nil},
    51  		{"2.0.7pre1", "2.0.7r", -1, nil},
    52  		{"0.10.0", "0.8.7", 1, nil},
    53  		// subrev
    54  		{"1.0-1", "1.0-2", -1, nil},
    55  		{"1.0-1.1", "1.0-1", 1, nil},
    56  		{"1.0-1.1", "1.0-1.1", 0, nil},
    57  		// do we like strange versions? Yes we like strange versions…
    58  		{"0", "0", 0, nil},
    59  		{"0", "00", 0, nil},
    60  		{"", "", 0, nil},
    61  		{"", "0", -1, nil},
    62  		{"0", "", 1, nil},
    63  		{"", "~", 1, nil},
    64  		{"~", "", -1, nil},
    65  		// from the apt suite
    66  		{"0-pre", "0-pre", 0, nil},
    67  		{"0-pre", "0-pree", -1, nil},
    68  		{"1.1.6r2-2", "1.1.6r-1", 1, nil},
    69  		{"2.6b2-1", "2.6b-2", 1, nil},
    70  		{"0.4a6-2", "0.4-1", 1, nil},
    71  		{"3.0~rc1-1", "3.0-1", -1, nil},
    72  		{"1.0", "1.0-0", 0, nil},
    73  		{"0.2", "1.0-0", -1, nil},
    74  		{"1.0", "1.0-0+b1", -1, nil},
    75  		{"1.0", "1.0-0~", 1, nil},
    76  		// from the old perl cupt
    77  		{"1.2.3", "1.2.3", 0, nil},                   // identical
    78  		{"4.4.3-2", "4.4.3-2", 0, nil},               // identical
    79  		{"1.2.3", "1.2.3-0", 0, nil},                 // zero revision
    80  		{"009", "9", 0, nil},                         // zeroes…
    81  		{"009ab5", "9ab5", 0, nil},                   // there as well
    82  		{"1.2.3", "1.2.3-1", -1, nil},                // added non-zero revision
    83  		{"1.2.3", "1.2.4", -1, nil},                  // just bigger
    84  		{"1.2.4", "1.2.3", 1, nil},                   // order doesn't matter
    85  		{"1.2.24", "1.2.3", 1, nil},                  // bigger, eh?
    86  		{"0.10.0", "0.8.7", 1, nil},                  // bigger, eh?
    87  		{"3.2", "2.3", 1, nil},                       // major number rocks
    88  		{"1.3.2a", "1.3.2", 1, nil},                  // letters rock
    89  		{"0.5.0~git", "0.5.0~git2", -1, nil},         // numbers rock
    90  		{"2a", "21", -1, nil},                        // but not in all places
    91  		{"1.2a+~bCd3", "1.2a++", -1, nil},            // tilde doesn't rock
    92  		{"1.2a+~bCd3", "1.2a+~", 1, nil},             // but first is longer!
    93  		{"5.10.0", "5.005", 1, nil},                  // preceding zeroes don't matters
    94  		{"3a9.8", "3.10.2", -1, nil},                 // letters are before all letter symbols
    95  		{"3a9.8", "3~10", 1, nil},                    // but after the tilde
    96  		{"1.4+OOo3.0.0~", "1.4+OOo3.0.0-4", -1, nil}, // another tilde check
    97  		{"2.4.7-1", "2.4.7-z", -1, nil},              // revision comparing
    98  		{"1.002-1+b2", "1.00", 1, nil},               // whatever...
    99  
   100  		// broken
   101  		{"0--0", "0", 0, fmt.Errorf(`invalid version "0--0"`)},
   102  	} {
   103  		res, err := strutil.VersionCompare(t.A, t.B)
   104  		if t.err != nil {
   105  			c.Check(err, DeepEquals, t.err)
   106  		} else {
   107  			c.Check(err, IsNil)
   108  			c.Check(res, Equals, t.res, Commentf("%#v %#v: %v but got %v", t.A, t.B, res, t.res))
   109  		}
   110  	}
   111  }
   112  
   113  func (s *VersionTestSuite) TestVersionInvalid(c *C) {
   114  	for _, t := range []struct {
   115  		ver   string
   116  		valid bool
   117  	}{
   118  		{"1:2", false},
   119  		{"12:34", false},
   120  		{"1234:", false},
   121  		{"1--1", false},
   122  		{"1.0", true},
   123  		{"1234", true},
   124  	} {
   125  		res := strutil.VersionIsValid(t.ver)
   126  		c.Check(res, Equals, t.valid, Commentf("%q: %v but expected %v", t.ver, res, t.valid))
   127  	}
   128  }