* test/mkmf/base.rb (TestMkmf::FakeLog): capture output from mkmf.

* test/mkmf/test_find_executable.rb (test_find_executable):
  suppress meaningless diffrences for chkbuild.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30239 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Fri Dec 17 19:35:13 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/mkmf/base.rb (TestMkmf::FakeLog): capture output from mkmf.
+
+	* test/mkmf/test_find_executable.rb (test_find_executable):
+	  suppress meaningless diffrences for chkbuild.
+
 Fri Dec 17 13:26:54 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* win32/setup.mak (BASERUBY): quit with an error when BASERUBY was not

test/mkmf/base.rb

@@ -13,6 +13,42 @@ class TestMkmf < Test::Unit::TestCase
   class << MKMFLOG
     alias to_s call
   end
+
+  class Capture
+    def initialize
+      @buffer = ""
+      @filter = nil
+      @out = true
+    end
+    def clear
+      @buffer.clear
+    end
+    def flush
+      STDOUT.print @filter ? @filter.call(@buffer) : @buffer
+      clear
+    end
+    def reopen(io)
+      case io
+      when Capture
+        initialize_copy(io)
+      when File
+        @out = false
+      when IO
+        @out = true
+      else
+        @out = false
+      end
+    end
+    def filter(&block)
+      @filter = block
+    end
+    def write(s)
+      @buffer << s if @out
+    end
+  end
+
+  attr_reader :stdout
+
   def mkmflog(msg)
     log = proc {MKMFLOG[] << msg}
     class << log
@@ -25,6 +61,7 @@ class TestMkmf < Test::Unit::TestCase
     @tmpdir = Dir.mktmpdir
     @curdir = Dir.pwd
     @mkmfobj = Object.new
+    @stdout = Capture.new
     Dir.chdir(@tmpdir)
     @quiet, Logging.quiet = Logging.quiet, true
   end
@@ -37,7 +74,11 @@ class TestMkmf < Test::Unit::TestCase
   end
 
   def mkmf(*args, &block)
+    @stdout.clear
+    stdout, $stdout = $stdout, @stdout
     @mkmfobj.instance_eval(*args, &block)
+  ensure
+    $stdout = stdout
   end
 
   def config_value(name)

test/mkmf/test_find_executable.rb

@@ -8,6 +8,7 @@ class TestMkmf
       ENV["PATH"] = @tmpdir
       name = "foobar#{$$}#{rand(1000)}"
       exts = mkmf {self.class::CONFIG['EXECUTABLE_EXTS']}.split
+      stdout.filter {|s| s.sub(name, "<executable>")}
       exts[0] ||= ""
       exts.each do |ext|
         full = name+ext