1 files changed, 37 insertions, 12 deletions
diff --git a/test/ruby/test_file.rb b/test/ruby/test_file.rb
index 9fa96f8a7c..a3d6221c0f 100644
--- a/test/ruby/test_file.rb
+++ b/test/ruby/test_file.rb
@@ -358,33 +358,58 @@ class TestFile < Test::Unit::TestCase
     assert_equal(mod_time_contents, stats.mtime, bug6385)
   end
 
+  def measure_time
+    log = []
+    30.times do
+      t1 = Process.clock_gettime(Process::CLOCK_REALTIME)
+      yield
+      t2 = Process.clock_gettime(Process::CLOCK_REALTIME)
+      log << (t2 - t1)
+      return (t1 + t2) / 2 if t2 - t1 < 1
+      sleep 1
+    end
+    omit "failed to setup; the machine is stupidly slow #{log.inspect}"
+  end
+
   def test_stat
-    tb = Process.clock_gettime(Process::CLOCK_REALTIME)
+    btime = Process.clock_gettime(Process::CLOCK_REALTIME)
     Tempfile.create("stat") {|file|
-      tb = (tb + Process.clock_gettime(Process::CLOCK_REALTIME)) / 2
+      btime = (btime + Process.clock_gettime(Process::CLOCK_REALTIME)) / 2
       file.close
       path = file.path
 
-      t0 = Process.clock_gettime(Process::CLOCK_REALTIME)
-      File.write(path, "foo")
+      measure_time do
+        File.write(path, "foo")
+      end
+
       sleep 2
-      File.write(path, "bar")
+
+      mtime = measure_time do
+        File.write(path, "bar")
+      end
+
       sleep 2
-      File.read(path)
-      File.chmod(0644, path)
+
+      ctime = measure_time do
+        File.chmod(0644, path)
+      end
+
       sleep 2
-      File.read(path)
+
+      atime = measure_time do
+        File.read(path)
+      end
 
       delta = 1
       stat = File.stat(path)
-      assert_in_delta tb,   stat.birthtime.to_f, delta
-      assert_in_delta t0+2, stat.mtime.to_f, delta
+      assert_in_delta btime, stat.birthtime.to_f, delta
+      assert_in_delta mtime, stat.mtime.to_f, delta
       if stat.birthtime != stat.ctime
-        assert_in_delta t0+4, stat.ctime.to_f, delta
+        assert_in_delta ctime, stat.ctime.to_f, delta
       end
       if /mswin|mingw/ !~ RUBY_PLATFORM && !Bug::File::Fs.noatime?(path)
         # Windows delays updating atime
-        assert_in_delta t0+6, stat.atime.to_f, delta
+        assert_in_delta atime, stat.atime.to_f, delta
       end
     }
   rescue NotImplementedError