1 files changed, 30 insertions, 0 deletions
diff --git a/spec/ruby/library/etc/getgrnam_spec.rb b/spec/ruby/library/etc/getgrnam_spec.rb
new file mode 100644
index 0000000000..325ea7b297
--- /dev/null
+++ b/spec/ruby/library/etc/getgrnam_spec.rb
@@ -0,0 +1,30 @@
+require_relative '../../spec_helper'
+require 'etc'
+
+platform_is :windows do
+  describe "Etc.getgrnam" do
+    it "returns nil" do
+      Etc.getgrnam(1).should == nil
+      Etc.getgrnam(nil).should == nil
+      Etc.getgrnam('nil').should == nil
+    end
+  end
+end
+
+platform_is_not :windows, :android do
+  describe "Etc.getgrnam" do
+    it "returns a Etc::Group struct instance for the given group" do
+      gr_name = Etc.getgrent.name
+      Etc.endgrent
+      gr = Etc.getgrnam(gr_name)
+      gr.is_a?(Etc::Group).should == true
+    end
+
+    it "only accepts strings as argument" do
+      -> {
+        Etc.getgrnam(123)
+        Etc.getgrnam(nil)
+      }.should.raise(TypeError)
+    end
+  end
+end