1 files changed, 41 insertions, 0 deletions
diff --git a/spec/ruby/library/socket/addrinfo/ipv4_loopback_spec.rb b/spec/ruby/library/socket/addrinfo/ipv4_loopback_spec.rb
new file mode 100644
index 0000000000..266281ce7a
--- /dev/null
+++ b/spec/ruby/library/socket/addrinfo/ipv4_loopback_spec.rb
@@ -0,0 +1,41 @@
+require_relative '../spec_helper'
+
+describe "Addrinfo#ipv4_loopback?" do
+  describe "for an ipv4 socket" do
+    it "returns true for the loopback address" do
+      Addrinfo.ip('127.0.0.1').should.ipv4_loopback?
+      Addrinfo.ip('127.0.0.2').should.ipv4_loopback?
+      Addrinfo.ip('127.255.0.1').should.ipv4_loopback?
+      Addrinfo.ip('127.255.255.255').should.ipv4_loopback?
+    end
+
+    it "returns false for another address" do
+      Addrinfo.ip('255.255.255.0').ipv4_loopback?.should == false
+    end
+  end
+
+  describe "for an ipv6 socket" do
+    before :each do
+      @loopback = Addrinfo.tcp("::1", 80)
+      @other    = Addrinfo.tcp("::", 80)
+    end
+
+    it "returns false for the loopback address" do
+      @loopback.ipv4_loopback?.should == false
+    end
+
+    it "returns false for another address" do
+      @other.ipv4_loopback?.should == false
+    end
+  end
+
+  describe "for a unix socket" do
+    before :each do
+      @addrinfo = Addrinfo.unix("/tmp/sock")
+    end
+
+    it "returns false" do
+      @addrinfo.ipv4_loopback?.should == false
+    end
+  end
+end