6 files changed, 3 insertions, 8 deletions
diff --git a/test/ruby/test_bignum.rb b/test/ruby/test_bignum.rb
index 58d63a7c29..434c5befd9 100644
--- a/test/ruby/test_bignum.rb
+++ b/test/ruby/test_bignum.rb
@@ -10,7 +10,6 @@ class TestBignum < Test::Unit::TestCase
   FIXNUM_MAX = RbConfig::LIMITS['FIXNUM_MAX']
 
   BIGNUM_MIN = FIXNUM_MAX + 1
-  b = BIGNUM_MIN
 
   f = BIGNUM_MIN
   n = 0
@@ -612,7 +611,6 @@ class TestBignum < Test::Unit::TestCase
       return # GMP doesn't support interrupt during an operation.
     end
     time = Time.now
-    start_flag = false
     end_flag = false
     num = (65536 ** 65536)
     q = Queue.new
diff --git a/test/ruby/test_file_exhaustive.rb b/test/ruby/test_file_exhaustive.rb
index 02890bb2a7..0612a618d6 100644
--- a/test/ruby/test_file_exhaustive.rb
+++ b/test/ruby/test_file_exhaustive.rb
@@ -683,7 +683,6 @@ class TestFileExhaustive < Test::Unit::TestCase
   def test_utime_symlinkfile
     return unless symlinkfile
     t = Time.local(2000)
-    stat = File.lstat(symlinkfile)
     assert_equal(1, File.utime(t, t, symlinkfile))
     assert_equal(t, File.stat(regular_file).atime)
     assert_equal(t, File.stat(regular_file).mtime)
diff --git a/test/ruby/test_numeric.rb b/test/ruby/test_numeric.rb
index f48bce5411..4e5404aa4a 100644
--- a/test/ruby/test_numeric.rb
+++ b/test/ruby/test_numeric.rb
@@ -52,7 +52,6 @@ class TestNumeric < Test::Unit::TestCase
     end.new
     assert_equal(-1, -a)
 
-    bug7688 = '[ruby-core:51389] [Bug #7688]'
     a = Class.new(Numeric) do
       def coerce(x); raise StandardError, "my error"; end
     end.new
diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index fb3f50a573..02efc168c2 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -2362,7 +2362,6 @@ EOS
           w.syswrite("exec failed\n")
         end
         q = Queue.new
-        run = true
         th1 = Thread.new { i = 0; i += 1 while q.empty?; i }
         th2 = Thread.new { j = 0; j += 1 while q.empty? && Thread.pass.nil?; j }
         sleep 0.5
diff --git a/test/ruby/test_system.rb b/test/ruby/test_system.rb
index 477767905b..31c9cd7654 100644
--- a/test/ruby/test_system.rb
+++ b/test/ruby/test_system.rb
@@ -188,7 +188,7 @@ class TestSystem < Test::Unit::TestCase
       name = "\u{30c6 30b9 30c8}"
       tmpfilename = "#{tmpdir}/#{name}.cmd"
       message = /#{name}\.cmd/
-      e = assert_raise_with_message(Errno::ENOENT, message) do
+      assert_raise_with_message(Errno::ENOENT, message) do
         system(tmpfilename, exception: true)
       end
       open(tmpfilename, "w") {|f|
@@ -196,7 +196,7 @@ class TestSystem < Test::Unit::TestCase
         f.puts "exit 127"
         f.chmod(0755)
       }
-      e = assert_raise_with_message(RuntimeError, message) do
+      assert_raise_with_message(RuntimeError, message) do
         system(tmpfilename, exception: true)
       end
     end
diff --git a/test/ruby/test_thread_queue.rb b/test/ruby/test_thread_queue.rb
index 8cebbbecb4..4e34bb4f46 100644
--- a/test/ruby/test_thread_queue.rb
+++ b/test/ruby/test_thread_queue.rb
@@ -474,7 +474,7 @@ class TestThreadQueue < Test::Unit::TestCase
     prod_threads.each{|t|
       begin
         t.join
-      rescue => e
+      rescue
       end
     }
   end