github.com/hlts2/go@v0.0.0-20170904000733-812b34efaed8/src/os/user/user_test.go (about)

     1  // Copyright 2011 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package user
     6  
     7  import (
     8  	"runtime"
     9  	"testing"
    10  )
    11  
    12  func checkUser(t *testing.T) {
    13  	if !userImplemented {
    14  		t.Skip("user: not implemented; skipping tests")
    15  	}
    16  }
    17  
    18  func TestCurrent(t *testing.T) {
    19  	u, err := Current()
    20  	if err != nil {
    21  		t.Fatalf("Current: %v (got %#v)", err, u)
    22  	}
    23  	if u.HomeDir == "" {
    24  		t.Errorf("didn't get a HomeDir")
    25  	}
    26  	if u.Username == "" {
    27  		t.Errorf("didn't get a username")
    28  	}
    29  }
    30  
    31  func BenchmarkCurrent(b *testing.B) {
    32  	for i := 0; i < b.N; i++ {
    33  		Current()
    34  	}
    35  }
    36  
    37  func compare(t *testing.T, want, got *User) {
    38  	if want.Uid != got.Uid {
    39  		t.Errorf("got Uid=%q; want %q", got.Uid, want.Uid)
    40  	}
    41  	if want.Username != got.Username {
    42  		t.Errorf("got Username=%q; want %q", got.Username, want.Username)
    43  	}
    44  	if want.Name != got.Name {
    45  		t.Errorf("got Name=%q; want %q", got.Name, want.Name)
    46  	}
    47  	// TODO(brainman): fix it once we know how.
    48  	if runtime.GOOS == "windows" {
    49  		t.Skip("skipping Gid and HomeDir comparisons")
    50  	}
    51  	if want.Gid != got.Gid {
    52  		t.Errorf("got Gid=%q; want %q", got.Gid, want.Gid)
    53  	}
    54  	if want.HomeDir != got.HomeDir {
    55  		t.Errorf("got HomeDir=%q; want %q", got.HomeDir, want.HomeDir)
    56  	}
    57  }
    58  
    59  func TestLookup(t *testing.T) {
    60  	checkUser(t)
    61  
    62  	if runtime.GOOS == "plan9" {
    63  		t.Skipf("Lookup not implemented on %q", runtime.GOOS)
    64  	}
    65  
    66  	want, err := Current()
    67  	if err != nil {
    68  		t.Fatalf("Current: %v", err)
    69  	}
    70  	// TODO: Lookup() has a fast path that calls Current() and returns if the
    71  	// usernames match, so this test does not exercise very much. It would be
    72  	// good to try and test finding a different user than the current user.
    73  	got, err := Lookup(want.Username)
    74  	if err != nil {
    75  		t.Fatalf("Lookup: %v", err)
    76  	}
    77  	compare(t, want, got)
    78  }
    79  
    80  func TestLookupId(t *testing.T) {
    81  	checkUser(t)
    82  
    83  	if runtime.GOOS == "plan9" {
    84  		t.Skipf("LookupId not implemented on %q", runtime.GOOS)
    85  	}
    86  
    87  	want, err := Current()
    88  	if err != nil {
    89  		t.Fatalf("Current: %v", err)
    90  	}
    91  	got, err := LookupId(want.Uid)
    92  	if err != nil {
    93  		t.Fatalf("LookupId: %v", err)
    94  	}
    95  	compare(t, want, got)
    96  }
    97  
    98  func checkGroup(t *testing.T) {
    99  	if !groupImplemented {
   100  		t.Skip("user: group not implemented; skipping test")
   101  	}
   102  }
   103  
   104  func TestLookupGroup(t *testing.T) {
   105  	checkGroup(t)
   106  	user, err := Current()
   107  	if err != nil {
   108  		t.Fatalf("Current(): %v", err)
   109  	}
   110  
   111  	g1, err := LookupGroupId(user.Gid)
   112  	if err != nil {
   113  		// NOTE(rsc): Maybe the group isn't defined. That's fine.
   114  		// On my OS X laptop, rsc logs in with group 5000 even
   115  		// though there's no name for group 5000. Such is Unix.
   116  		t.Logf("LookupGroupId(%q): %v", user.Gid, err)
   117  		return
   118  	}
   119  	if g1.Gid != user.Gid {
   120  		t.Errorf("LookupGroupId(%q).Gid = %s; want %s", user.Gid, g1.Gid, user.Gid)
   121  	}
   122  
   123  	g2, err := LookupGroup(g1.Name)
   124  	if err != nil {
   125  		t.Fatalf("LookupGroup(%q): %v", g1.Name, err)
   126  	}
   127  	if g1.Gid != g2.Gid || g1.Name != g2.Name {
   128  		t.Errorf("LookupGroup(%q) = %+v; want %+v", g1.Name, g2, g1)
   129  	}
   130  }
   131  
   132  func TestGroupIds(t *testing.T) {
   133  	checkGroup(t)
   134  	if runtime.GOOS == "solaris" {
   135  		t.Skip("skipping GroupIds, see golang.org/issue/14709")
   136  	}
   137  	user, err := Current()
   138  	if err != nil {
   139  		t.Fatalf("Current(): %v", err)
   140  	}
   141  	gids, err := user.GroupIds()
   142  	if err != nil {
   143  		t.Fatalf("%+v.GroupIds(): %v", user, err)
   144  	}
   145  	if !containsID(gids, user.Gid) {
   146  		t.Errorf("%+v.GroupIds() = %v; does not contain user GID %s", user, gids, user.Gid)
   147  	}
   148  }
   149  
   150  func containsID(ids []string, id string) bool {
   151  	for _, x := range ids {
   152  		if x == id {
   153  			return true
   154  		}
   155  	}
   156  	return false
   157  }