[PATCH] tests: cleanup some unused variable warnings

[Eric Wong <e@80x24.org>]

Add a new "check-warnings" target to the GNUmakefile to make
checking for this easier.  Warnings aren't fatal, and newer
versions of Ruby tend to increase warnings.
---
 GNUmakefile               |  5 +++++
 test/unit/test_droplet.rb |  2 +-
 test/unit/test_request.rb | 20 ++++++++++----------
 3 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/GNUmakefile b/GNUmakefile
index 51045d4..2505e1f 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -249,5 +249,10 @@ endif
 $(PLACEHOLDERS):
 	echo olddoc_placeholder > $@
 
+check-warnings:
+	@(for i in $$(git ls-files '*.rb' bin | grep -v '^setup\.rb$$'); \
+	  do $(RUBY) --disable-gems -d -W2 -c \
+	  $$i; done) | grep -v '^Syntax OK$$' || :
+
 .PHONY: .FORCE-GIT-VERSION-FILE doc $(T) $(slow_tests) man
 .PHONY: test-install
diff --git a/test/unit/test_droplet.rb b/test/unit/test_droplet.rb
index 73cf38c..81ad82b 100644
--- a/test/unit/test_droplet.rb
+++ b/test/unit/test_droplet.rb
@@ -4,7 +4,7 @@
 class TestDroplet < Test::Unit::TestCase
   def test_create_many_droplets
     now = Time.now.to_i
-    tmp = (0..1024).map do |i|
+    (0..1024).each do |i|
       droplet = Unicorn::Worker.new(i)
       assert droplet.respond_to?(:tick)
       assert_equal 0, droplet.tick
diff --git a/test/unit/test_request.rb b/test/unit/test_request.rb
index f0ccaf7..6cb0268 100644
--- a/test/unit/test_request.rb
+++ b/test/unit/test_request.rb
@@ -34,7 +34,7 @@ def test_options
     assert_equal '', env['REQUEST_PATH']
     assert_equal '', env['PATH_INFO']
     assert_equal '*', env['REQUEST_URI']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_absolute_uri_with_query
@@ -44,7 +44,7 @@ def test_absolute_uri_with_query
     assert_equal '/x', env['REQUEST_PATH']
     assert_equal '/x', env['PATH_INFO']
     assert_equal 'y=z', env['QUERY_STRING']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_absolute_uri_with_fragment
@@ -55,7 +55,7 @@ def test_absolute_uri_with_fragment
     assert_equal '/x', env['PATH_INFO']
     assert_equal '', env['QUERY_STRING']
     assert_equal 'frag', env['FRAGMENT']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_absolute_uri_with_query_and_fragment
@@ -66,7 +66,7 @@ def test_absolute_uri_with_query_and_fragment
     assert_equal '/x', env['PATH_INFO']
     assert_equal 'a=b', env['QUERY_STRING']
     assert_equal 'frag', env['FRAGMENT']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_absolute_uri_unsupported_schemes
@@ -83,7 +83,7 @@ def test_x_forwarded_proto_https
                              "Host: foo\r\n\r\n")
     env = @request.read(client)
     assert_equal "https", env['rack.url_scheme']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_x_forwarded_proto_http
@@ -92,7 +92,7 @@ def test_x_forwarded_proto_http
                              "Host: foo\r\n\r\n")
     env = @request.read(client)
     assert_equal "http", env['rack.url_scheme']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_x_forwarded_proto_invalid
@@ -101,7 +101,7 @@ def test_x_forwarded_proto_invalid
                              "Host: foo\r\n\r\n")
     env = @request.read(client)
     assert_equal "http", env['rack.url_scheme']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_rack_lint_get
@@ -109,7 +109,7 @@ def test_rack_lint_get
     env = @request.read(client)
     assert_equal "http", env['rack.url_scheme']
     assert_equal '127.0.0.1', env['REMOTE_ADDR']
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_no_content_stringio
@@ -143,7 +143,7 @@ def test_rack_lint_put
       "abcde")
     env = @request.read(client)
     assert ! env.include?(:http_body)
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 
   def test_rack_lint_big_put
@@ -177,6 +177,6 @@ def client.kgio_read!(*args)
     }
     assert_nil env['rack.input'].read(bs)
     env['rack.input'].rewind
-    res = @lint.call(env)
+    assert_kind_of Array, @lint.call(env)
   end
 end
-- 
EW