diff options
| -rw-r--r-- | process.c | 13 | ||||
| -rw-r--r-- | spec/ruby/core/process/groups_spec.rb | 4 |
2 files changed, 15 insertions, 2 deletions
@@ -6136,6 +6136,19 @@ maxgroups(void) * * Process.groups #=> [27, 6, 10, 11] * + * Note that this method is just a wrapper of getgroups(2). + * This means that the following characteristics of + * the results are completely depends on your system: + * + * - the result is sorted + * - the result includes effective GIDs + * - the result does not include duplicated GIDs + * + * You can certainly get a sorted unique GID list of + * the current process by this expression: + * + * Process.groups.unique.sort + * */ static VALUE diff --git a/spec/ruby/core/process/groups_spec.rb b/spec/ruby/core/process/groups_spec.rb index 331c53939a..325deb5977 100644 --- a/spec/ruby/core/process/groups_spec.rb +++ b/spec/ruby/core/process/groups_spec.rb @@ -6,8 +6,8 @@ describe "Process.groups" do groups = `id -G`.scan(/\d+/).map { |i| i.to_i } gid = Process.gid - expected = (groups.sort - [gid]).sort - actual = (Process.groups - [gid]).sort + expected = (groups.sort - [gid]).uniq.sort + actual = (Process.groups - [gid]).uniq.sort actual.should == expected end end |