testunit: negative filter

* test/lib/test/unit.rb (Options#non_options): make regexp name
  options prefixed with "!" negative filters.
* common.mk (TEST_EXCLUDES): use negative filter to exclude memory
  leak tests.  -x option excludes test files, not test methods.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54086 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Fri Mar 11 17:03:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/lib/test/unit.rb (Options#non_options): make regexp name
+	  options prefixed with "!" negative filters.
+
+	* common.mk (TEST_EXCLUDES): use negative filter to exclude memory
+	  leak tests.  -x option excludes test files, not test methods.
+
 Fri Mar 11 16:11:27 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
 	* enc/unicode/case-folding.rb, casefold.h: Streamlining approach to

common.mk

@@ -154,7 +154,7 @@ PRE_LIBRUBY_UPDATE = $(MINIRUBY) -e 'ARGV[1] or File.unlink(ARGV[0]) rescue nil'
 			$(LIBRUBY_EXTS) $(LIBRUBY_SO_UPDATE)
 
 TESTSDIR      = $(srcdir)/test
-TEST_EXCLUDES = --excludes=$(TESTSDIR)/excludes -x /memory_leak/
+TEST_EXCLUDES = --excludes=$(TESTSDIR)/excludes --name=!/memory_leak/
 EXCLUDE_TESTFRAMEWORK = -x /testunit/ -x /minitest/
 TESTWORKDIR   = testwork
 TESTOPTS      = $(RUBY_TESTOPTS)

test/lib/test/unit.rb

@@ -87,7 +87,7 @@ module Test
         end
 
         opts.on '-n', '--name PATTERN', "Filter test method names on pattern: /REGEXP/ or STRING" do |a|
-          options[:filter] = a
+          (options[:filter] ||= []) << a
         end
 
         opts.on '--test-order=random|alpha|sorted', [:random, :alpha, :sorted] do |a|
@@ -96,6 +96,30 @@ module Test
       end
 
       def non_options(files, options)
+        filter = options[:filter]
+        if filter
+          pos_pat = /\A\/(.*)\/\z/
+          neg_pat = /\A!\/(.*)\/\z/
+          negative, positive = filter.partition {|s| neg_pat =~ s}
+          if positive.empty?
+            filter = nil
+          elsif negative.empty? and positive.size == 1 and pos_pat !~ positive[0]
+            filter = positive[0]
+          else
+            filter = Regexp.union(*positive.map! {|s| s[pos_pat, 1] || "\\A#{Regexp.quote(s)}\\z"})
+          end
+          unless negative.empty?
+            negative = Regexp.union(*negative.map! {|s| s[neg_pat, 1]})
+            filter = /\A(?!.*#{negative})#{filter}/
+          end
+          if Regexp === filter
+            # bypass conversion in minitest
+            def filter.=~(other)    # :nodoc:
+              super unless Regexp === other
+            end
+          end
+          options[:filter] = filter
+        end
         true
       end
     end
@@ -594,9 +618,7 @@ module Test
           @verbose = !options[:parallel]
         end
         @output = Output.new(self) unless @options[:testing]
-        if /\A\/(.*)\/\z/ =~ (filter = options[:filter])
-          filter = Regexp.new($1)
-        end
+        filter = options[:filter]
         type = "#{type}_methods"
         total = if filter
                   suites.inject(0) {|n, suite| n + suite.send(type).grep(filter).size}