diff -uNr http_parser.rb-0.6.0.orig/spec/parser_spec.rb http_parser.rb-0.6.0/spec/parser_spec.rb
--- http_parser.rb-0.6.0.orig/spec/parser_spec.rb	2016-09-02 14:40:59.042007967 +0200
+++ http_parser.rb-0.6.0/spec/parser_spec.rb	2016-09-02 14:43:37.886554449 +0200
@@ -65,8 +65,8 @@
       "\r\n" +
       "World"
 
-    @started.should be_true
-    @done.should be_true
+    @started.should be_truthy
+    @done.should be_truthy
 
     @parser.http_major.should == 1
     @parser.http_minor.should == 1
@@ -103,7 +103,7 @@
 
     @headers.should == {'Content-Length' => '5'}
     @body.should be_empty
-    @done.should be_false
+    @done.should be_falsey
   end
 
   it "should reset to initial state" do
@@ -114,7 +114,7 @@
 
     @parser.request_url.should == '/'
 
-    @parser.reset!.should be_true
+    @parser.reset!.should be_truthy
 
     @parser.http_version.should be_nil
     @parser.http_method.should be_nil
@@ -124,7 +124,7 @@
   end
 
   it "should optionally reset parser state on no-body responses" do
-   @parser.reset!.should be_true
+   @parser.reset!.should be_truthy
 
    @head, @complete = 0, 0
    @parser.on_headers_complete = proc {|h| @head += 1; :reset }
@@ -143,12 +143,12 @@
   end
 
   it "should retain callbacks after reset" do
-    @parser.reset!.should be_true
+    @parser.reset!.should be_truthy
 
     @parser << "GET / HTTP/1.0\r\n\r\n"
-    @started.should be_true
+    @started.should be_truthy
     @headers.should == {}
-    @done.should be_true
+    @done.should be_truthy
   end
 
   it "should parse headers incrementally" do
@@ -231,10 +231,10 @@
     @parser = HTTP::Parser.new(callbacks)
     @parser << "GET / HTTP/1.0\r\n\r\n"
 
-    @started.should be_true
+    @started.should be_truthy
     @headers.should == {}
     @body.should == ''
-    @done.should be_true
+    @done.should be_truthy
   end
 
   it "should ignore extra content beyond specified length" do
@@ -246,7 +246,7 @@
       "  \n"
 
     @body.should == 'hello'
-    @done.should be_true
+    @done.should be_truthy
   end
 
   it 'sets upgrade_data if available' do
@@ -256,7 +256,7 @@
       "Upgrade: WebSocket\r\n\r\n" +
       "third key data"
 
-    @parser.upgrade?.should be_true
+    @parser.upgrade?.should be_truthy
     @parser.upgrade_data.should == 'third key data'
   end
 
@@ -266,7 +266,7 @@
       "Connection: Upgrade\r\n" +
       "Upgrade: WebSocket\r\n\r\n"
 
-    @parser.upgrade?.should be_true
+    @parser.upgrade?.should be_truthy
     @parser.upgrade_data.should == ''
   end
 
@@ -281,13 +281,13 @@
 
     @parser.on_headers_complete = proc { |e| :stop }
     offset = (@parser << request)
-    @parser.upgrade?.should be_true
+    @parser.upgrade?.should be_truthy
     @parser.upgrade_data.should == ''
     offset.should == request.length
   end
 
   it "should execute on_body on requests with no content-length" do
-   @parser.reset!.should be_true
+   @parser.reset!.should be_truthy
 
    @head, @complete, @body = 0, 0, 0
    @parser.on_headers_complete = proc {|h| @head += 1 }
@@ -316,7 +316,7 @@
         @parser.keep_alive?.should == test['should_keep_alive']
 
         if test.has_key?('upgrade') and test['upgrade'] != 0
-          @parser.upgrade?.should be_true
+          @parser.upgrade?.should be_truthy
           @parser.upgrade_data.should == test['upgrade']
         end