added code and spec to shorten filenames that will cause Errno::ENAME…

…TOOLONG

lib/ci/reporter/report_manager.rb

@@ -33,12 +33,18 @@ def write_report(suite)
       #   SPEC-MailsController.N.xml
       #
       # with N < 100000, to prevent endless sidestep loops
-      MAX_SIDESTEPS = 100000
+      MAX_SIDESTEPS     = 100000
+      MAX_FILENAME_SIZE = 240
       #
       def filename_for(suite)
         basename = "#{@basename}-#{suite.name.gsub(/[^a-zA-Z0-9]+/, '-')}"
         suffix = "xml"
 
+        # shorten basename if it exceeds 240 characters
+        # most filesystems have a 255 character limit
+        # so leave some room for the sidesteps
+        basename = basename[0..MAX_FILENAME_SIZE] if basename.length > MAX_FILENAME_SIZE
+
         # the initial filename, e.g. SPEC-MailsController.xml
         filename = [basename, suffix].join(".")
 

spec/ci/reporter/report_manager_spec.rb

@@ -36,4 +36,15 @@
     File.exist?(filename).should be_true
     File.open(filename) {|f| f.read.should == "<xml></xml>"}
   end
+
+  it "should shorten extremely long report filenames" do
+    reporter = CI::Reporter::ReportManager.new("spec")
+    suite = mock("test suite")
+    suite.should_receive(:name).and_return("some test suite name that goes on and on and on and on and on and on and does not look like it will end any time soon and just when you think it is almost over it just continues to go on and on and on and on and on until it is almost over but wait there is more and then el fin")
+    suite.should_receive(:to_xml).and_return("<xml></xml>")
+    reporter.write_report(suite)
+    filename = "#{REPORTS_DIR}/SPEC-some-test-suite-name-that-goes-on-and-on-and-on-and-on-and-on-and-on-and-does-not-look-like-it-will-end-any-time-soon-and-just-when-you-think-it-is-almost-over-it-just-continues-to-go-on.xml"
+    File.exist?(filename).should be_true
+    File.open(filename) {|f| f.read.should == "<xml></xml>"}
+  end
 end