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

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2015-2020 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 asserts
    21  
    22  import (
    23  	"errors"
    24  	"io/ioutil"
    25  	"os"
    26  	"path/filepath"
    27  	"sort"
    28  
    29  	"gopkg.in/check.v1"
    30  )
    31  
    32  type findWildcardSuite struct{}
    33  
    34  var _ = check.Suite(&findWildcardSuite{})
    35  
    36  func (fs *findWildcardSuite) TestFindWildcard(c *check.C) {
    37  	top := filepath.Join(c.MkDir(), "top")
    38  
    39  	err := os.MkdirAll(top, os.ModePerm)
    40  	c.Assert(err, check.IsNil)
    41  	err = os.MkdirAll(filepath.Join(top, "acc-id1"), os.ModePerm)
    42  	c.Assert(err, check.IsNil)
    43  	err = os.MkdirAll(filepath.Join(top, "acc-id1", "abcd"), os.ModePerm)
    44  	c.Assert(err, check.IsNil)
    45  	err = os.MkdirAll(filepath.Join(top, "acc-id1", "e5cd"), os.ModePerm)
    46  	c.Assert(err, check.IsNil)
    47  	err = os.MkdirAll(filepath.Join(top, "acc-id2"), os.ModePerm)
    48  	c.Assert(err, check.IsNil)
    49  	err = os.MkdirAll(filepath.Join(top, "acc-id2", "f444"), os.ModePerm)
    50  	c.Assert(err, check.IsNil)
    51  
    52  	err = ioutil.WriteFile(filepath.Join(top, "acc-id1", "abcd", "active"), nil, os.ModePerm)
    53  	c.Assert(err, check.IsNil)
    54  	err = ioutil.WriteFile(filepath.Join(top, "acc-id1", "abcd", "active.1"), nil, os.ModePerm)
    55  	c.Assert(err, check.IsNil)
    56  	err = ioutil.WriteFile(filepath.Join(top, "acc-id1", "e5cd", "active"), nil, os.ModePerm)
    57  	c.Assert(err, check.IsNil)
    58  	err = ioutil.WriteFile(filepath.Join(top, "acc-id2", "f444", "active"), nil, os.ModePerm)
    59  	c.Assert(err, check.IsNil)
    60  
    61  	var res []string
    62  	foundCb := func(relpath []string) error {
    63  		res = append(res, relpath...)
    64  		return nil
    65  	}
    66  
    67  	err = findWildcard(top, []string{"*", "*", "active"}, 0, foundCb)
    68  	c.Assert(err, check.IsNil)
    69  	sort.Strings(res)
    70  	c.Check(res, check.DeepEquals, []string{"acc-id1/abcd/active", "acc-id1/e5cd/active", "acc-id2/f444/active"})
    71  
    72  	res = nil
    73  	err = findWildcard(top, []string{"*", "*", "active*"}, 0, foundCb)
    74  	c.Assert(err, check.IsNil)
    75  	sort.Strings(res)
    76  	c.Check(res, check.DeepEquals, []string{"acc-id1/abcd/active", "acc-id1/abcd/active.1", "acc-id1/e5cd/active", "acc-id2/f444/active"})
    77  
    78  	res = nil
    79  	err = findWildcard(top, []string{"zoo", "*", "active"}, 0, foundCb)
    80  	c.Assert(err, check.IsNil)
    81  	c.Check(res, check.HasLen, 0)
    82  
    83  	res = nil
    84  	err = findWildcard(top, []string{"zoo", "*", "active*"}, 0, foundCb)
    85  	c.Assert(err, check.IsNil)
    86  	c.Check(res, check.HasLen, 0)
    87  
    88  	res = nil
    89  	err = findWildcard(top, []string{"a*", "zoo", "active"}, 0, foundCb)
    90  	c.Assert(err, check.IsNil)
    91  	c.Check(res, check.HasLen, 0)
    92  
    93  	res = nil
    94  	err = findWildcard(top, []string{"acc-id1", "*cd", "active"}, 0, foundCb)
    95  	c.Assert(err, check.IsNil)
    96  	sort.Strings(res)
    97  	c.Check(res, check.DeepEquals, []string{"acc-id1/abcd/active", "acc-id1/e5cd/active"})
    98  
    99  	res = nil
   100  	err = findWildcard(top, []string{"acc-id1", "*cd", "active*"}, 0, foundCb)
   101  	c.Assert(err, check.IsNil)
   102  	sort.Strings(res)
   103  	c.Check(res, check.DeepEquals, []string{"acc-id1/abcd/active", "acc-id1/abcd/active.1", "acc-id1/e5cd/active"})
   104  
   105  }
   106  
   107  func (fs *findWildcardSuite) TestFindWildcardSomeErrors(c *check.C) {
   108  	top := filepath.Join(c.MkDir(), "top-errors")
   109  
   110  	err := os.MkdirAll(top, os.ModePerm)
   111  	c.Assert(err, check.IsNil)
   112  	err = os.MkdirAll(filepath.Join(top, "acc-id1"), os.ModePerm)
   113  	c.Assert(err, check.IsNil)
   114  	err = os.MkdirAll(filepath.Join(top, "acc-id2"), os.ModePerm)
   115  	c.Assert(err, check.IsNil)
   116  
   117  	err = ioutil.WriteFile(filepath.Join(top, "acc-id1", "abcd"), nil, os.ModePerm)
   118  	c.Assert(err, check.IsNil)
   119  
   120  	err = os.MkdirAll(filepath.Join(top, "acc-id2", "dddd"), os.ModePerm)
   121  	c.Assert(err, check.IsNil)
   122  
   123  	var res []string
   124  	var retErr error
   125  	foundCb := func(relpath []string) error {
   126  		res = append(res, relpath...)
   127  		return retErr
   128  	}
   129  
   130  	myErr := errors.New("boom")
   131  	retErr = myErr
   132  	err = findWildcard(top, []string{"acc-id1", "*"}, 0, foundCb)
   133  	c.Check(err, check.Equals, myErr)
   134  
   135  	retErr = nil
   136  	res = nil
   137  	err = findWildcard(top, []string{"acc-id2", "*"}, 0, foundCb)
   138  	c.Check(err, check.ErrorMatches, "expected a regular file: .*")
   139  }
   140  
   141  func (fs *findWildcardSuite) TestFindWildcardSequence(c *check.C) {
   142  	top := filepath.Join(c.MkDir(), "top")
   143  
   144  	err := os.MkdirAll(top, os.ModePerm)
   145  	c.Assert(err, check.IsNil)
   146  
   147  	files := []string{
   148  		"s1/3/active.1",
   149  		"s1/3/active.2",
   150  		"s1/2/active",
   151  		"s1/2/active.1",
   152  		"s1/1/active",
   153  	}
   154  	for _, fn := range files {
   155  		err := os.MkdirAll(filepath.Dir(filepath.Join(top, fn)), os.ModePerm)
   156  		c.Assert(err, check.IsNil)
   157  		err = ioutil.WriteFile(filepath.Join(top, fn), nil, os.ModePerm)
   158  		c.Assert(err, check.IsNil)
   159  	}
   160  
   161  	var res [][]string
   162  	foundCb := func(relpath []string) error {
   163  		res = append(res, relpath)
   164  		return nil
   165  	}
   166  
   167  	sort := func() {
   168  		for _, r := range res {
   169  			sort.Strings(r)
   170  		}
   171  	}
   172  
   173  	// ascending
   174  
   175  	err = findWildcard(top, []string{"s1", "#>", "active*"}, 1, foundCb)
   176  	c.Assert(err, check.IsNil)
   177  	sort()
   178  	c.Check(res, check.DeepEquals, [][]string{
   179  		{"s1/2/active", "s1/2/active.1"},
   180  		{"s1/3/active.1", "s1/3/active.2"},
   181  	})
   182  
   183  	res = nil
   184  	err = findWildcard(top, []string{"s1", "#>", "active*"}, 2, foundCb)
   185  	c.Assert(err, check.IsNil)
   186  	sort()
   187  	c.Check(res, check.DeepEquals, [][]string{
   188  		{"s1/3/active.1", "s1/3/active.2"},
   189  	})
   190  
   191  	res = nil
   192  	err = findWildcard(top, []string{"s1", "#>", "active*"}, 3, foundCb)
   193  	c.Assert(err, check.IsNil)
   194  	c.Check(res, check.HasLen, 0)
   195  
   196  	res = nil
   197  	err = findWildcard(top, []string{"s1", "#>", "active*"}, -1, foundCb)
   198  	c.Assert(err, check.IsNil)
   199  	sort()
   200  	c.Check(res, check.DeepEquals, [][]string{
   201  		{"s1/1/active"},
   202  		{"s1/2/active", "s1/2/active.1"},
   203  		{"s1/3/active.1", "s1/3/active.2"},
   204  	})
   205  
   206  	// descending
   207  
   208  	res = nil
   209  	err = findWildcard(top, []string{"s1", "#<", "active*"}, -1, foundCb)
   210  	c.Assert(err, check.IsNil)
   211  	sort()
   212  	c.Check(res, check.DeepEquals, [][]string{
   213  		{"s1/3/active.1", "s1/3/active.2"},
   214  		{"s1/2/active", "s1/2/active.1"},
   215  		{"s1/1/active"},
   216  	})
   217  
   218  	res = nil
   219  	err = findWildcard(top, []string{"s1", "#<", "active*"}, 3, foundCb)
   220  	c.Assert(err, check.IsNil)
   221  	sort()
   222  	c.Check(res, check.DeepEquals, [][]string{
   223  		{"s1/2/active", "s1/2/active.1"},
   224  		{"s1/1/active"},
   225  	})
   226  
   227  	res = nil
   228  	err = findWildcard(top, []string{"s1", "#<", "active*"}, 2, foundCb)
   229  	c.Assert(err, check.IsNil)
   230  	sort()
   231  	c.Check(res, check.DeepEquals, [][]string{
   232  		{"s1/1/active"},
   233  	})
   234  
   235  	res = nil
   236  	err = findWildcard(top, []string{"s1", "#<", "active*"}, 1, foundCb)
   237  	c.Assert(err, check.IsNil)
   238  	c.Check(res, check.HasLen, 0)
   239  
   240  	// missing dir
   241  	res = nil
   242  	err = findWildcard(top, []string{"s2", "#<", "active*"}, 1, foundCb)
   243  	c.Assert(err, check.IsNil)
   244  	c.Check(res, check.HasLen, 0)
   245  }
   246  
   247  func (fs *findWildcardSuite) TestFindWildcardSequenceSomeErrors(c *check.C) {
   248  	top := filepath.Join(c.MkDir(), "top-errors")
   249  
   250  	err := os.MkdirAll(top, os.ModePerm)
   251  	c.Assert(err, check.IsNil)
   252  
   253  	files := []string{
   254  		"s1/1/active",
   255  		"s2/a/active.1",
   256  		"s3/-9/active.1",
   257  		"s4/01/active",
   258  	}
   259  	for _, fn := range files {
   260  		err := os.MkdirAll(filepath.Dir(filepath.Join(top, fn)), os.ModePerm)
   261  		c.Assert(err, check.IsNil)
   262  		err = ioutil.WriteFile(filepath.Join(top, fn), nil, os.ModePerm)
   263  		c.Assert(err, check.IsNil)
   264  	}
   265  
   266  	myErr := errors.New("boom")
   267  	foundCb := func(relpath []string) error {
   268  		return myErr
   269  	}
   270  
   271  	err = findWildcard(top, []string{"s1", "#>", "active*"}, -1, foundCb)
   272  	c.Assert(err, check.Equals, myErr)
   273  
   274  	err = findWildcard(top, []string{"s2", "#>", "active*"}, -1, foundCb)
   275  	c.Assert(err, check.ErrorMatches, `cannot parse ".*/top-errors/s2/a" name as a valid sequence number`)
   276  
   277  	err = findWildcard(top, []string{"s3", "#>", "active*"}, -1, foundCb)
   278  	c.Assert(err, check.ErrorMatches, `cannot parse ".*/top-errors/s3/-9" name as a valid sequence number`)
   279  
   280  	err = findWildcard(top, []string{"s4", "#>", "active*"}, -1, foundCb)
   281  	c.Assert(err, check.ErrorMatches, `cannot parse ".*/top-errors/s4/01" name as a valid sequence number`)
   282  }