. Converts test_ber into specs

Author: kschiess

spec/unit/ber/ber_spec.rb

@@ -3,16 +3,91 @@
 require 'net/ber'
 require 'net/ldap'
 
-describe "Ber encoding of various types" do
+describe "BER encoding of" do
   def properly_encode_and_decode
     simple_matcher('properly encode and decode') do |given|
       given.to_ber.read_ber.should == given
     end
   end
 
-  context "array" do
-    it "should properly encode []" do
+  context "arrays" do
+    it "should properly encode/decode []" do
       [].should properly_encode_and_decode
     end 
+    it "should properly encode/decode [1,2,3]" do
+      ary = [1,2,3]
+      encoded_ary = ary.map { |el| el.to_ber }.to_ber
+      
+      encoded_ary.read_ber.should == ary
+    end 
+  end
+  context "booleans" do
+    it "should encode true" do
+      true.to_ber.should == "\x01\x01\x01"
+    end
+    it "should encode false" do
+      false.to_ber.should == "\x01\x01\x00"
+    end
+  end
+  context "numbers" do
+    # Sample based
+    {
+      0           => "\x02\x01\x00", 
+      1           => "\x02\x01\x01", 
+      127         => "\x02\x01\x7F", 
+      128         => "\x02\x01\x80", 
+      255         => "\x02\x01\xFF", 
+      256         => "\x02\x02\x01\x00", 
+      65535       => "\x02\x02\xFF\xFF", 
+      65536       => "\x02\x03\x01\x00\x00", 
+      16_777_215  => "\x02\x03\xFF\xFF\xFF", 
+      0x01000000  => "\x02\x04\x01\x00\x00\x00", 
+      0x3FFFFFFF  => "\x02\x04\x3F\xFF\xFF\xFF", 
+      0x4FFFFFFF  => "\x02\x04\x4F\xFF\xFF\xFF", 
+      
+      # Some odd samples...
+      5           => "\002\001\005", 
+      500         => "\002\002\001\364", 
+      50_000      => "\x02\x02\xC3P", 
+      5_000_000_000  => "\002\005\001*\005\362\000"
+    }.each do |number, expected_encoding| 
+      it "should encode #{number} as #{expected_encoding.inspect}" do
+        number.to_ber.should == expected_encoding
+      end 
+    end
+
+    # Round-trip encoding: This is mostly to be sure to cover Bignums well.
+    context "when decoding with #read_ber" do
+      it "should correctly handle powers of two" do
+        100.times do |p|
+          n = 2 << p
+          
+          n.should properly_encode_and_decode
+        end
+      end 
+      it "should correctly handle powers of ten" do
+        100.times do |p|
+          n = 5 * 10**p
+          
+          n.should properly_encode_and_decode
+        end
+      end 
+    end
+  end
+end
+
+describe "BER decoding of" do
+  context "numbers" do
+    it "should decode #{"\002\001\006".inspect} (6)" do
+      "\002\001\006".read_ber(Net::LDAP::AsnSyntax).should == 6
+    end
+    it "should decode #{"\004\007testing".inspect} ('testing')" do
+      "\004\007testing".read_ber(Net::LDAP::AsnSyntax).should == 'testing'
+    end
+    it "should decode an ldap bind request" do
+      "0$\002\001\001`\037\002\001\003\004\rAdministrator\200\vad_is_bogus".
+        read_ber(Net::LDAP::AsnSyntax).should ==
+          [1, [3, "Administrator", "ad_is_bogus"]]
+    end 
   end
 end