1 files changed, 51 insertions, 0 deletions
diff --git a/spec/ruby/core/file/mtime_spec.rb b/spec/ruby/core/file/mtime_spec.rb
new file mode 100644
index 0000000000..56b7e4464e
--- /dev/null
+++ b/spec/ruby/core/file/mtime_spec.rb
@@ -0,0 +1,51 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "File.mtime" do
+  before :each do
+    @filename = tmp('i_exist')
+    touch(@filename) { @mtime = Time.now }
+  end
+
+  after :each do
+    rm_r @filename
+  end
+
+  it "returns the modification Time of the file" do
+    File.mtime(@filename).should be_kind_of(Time)
+    File.mtime(@filename).should be_close(@mtime, 2.0)
+  end
+
+  platform_is :linux do
+    it "returns the modification Time of the file with microseconds" do
+      supports_subseconds = Integer(`stat -c%y '#{__FILE__}'`[/\.(\d+)/, 1], 10)
+      if supports_subseconds != 0
+        expected_time = Time.at(Time.now.to_i + 0.123456)
+        File.utime 0, expected_time, @filename
+        File.mtime(@filename).usec.should == expected_time.usec
+      else
+        File.mtime(__FILE__).usec.should == 0
+      end
+    end
+  end
+
+  it "raises an Errno::ENOENT exception if the file is not found" do
+    lambda { File.mtime('bogus') }.should raise_error(Errno::ENOENT)
+  end
+end
+
+describe "File#mtime" do
+  before :each do
+    @filename = tmp('i_exist')
+    @f = File.open(@filename, 'w')
+  end
+
+  after :each do
+    @f.close
+    rm_r @filename
+  end
+
+  it "returns the modification Time of the file" do
+    @f.mtime.should be_kind_of(Time)
+  end
+
+end