print elapsed time in summary

spec/suites/TrivialNodeReporterSpec.js

@@ -34,7 +34,8 @@ describe("TrivialNodeReporter", function() {
       return {
         puts:function(str) {output += str + "\n";},
         print:function(str) {output += str;},
-        getOutput:function(){return output;}
+        getOutput:function(){return output;},
+        clear: function(){output = "";}
       };
     })();
 
@@ -122,6 +123,48 @@ describe("TrivialNodeReporter", function() {
           newline + prefixRed("Finished")
         );
       });
+      
+      it("prints the elapsed time in the summary message", function(){
+        this.reporter.now = function(){return 1000}
+        this.reporter.reportRunnerStarting();
+        this.reporter.now = function(){return 1777}
+        this.reporter.reportRunnerResults(passingRun);
+        expect(this.fakeSys.getOutput()).toContain("0.777 seconds");
+      });
+      
+      it("prints round time numbers correctly", function(){
+        var self = this;
+        function run(startTime, endTime) {
+          self.fakeSys.clear();
+          self.reporter.runnerStartTime = startTime;
+          self.reporter.now = function(){return endTime}
+          self.reporter.reportRunnerResults(passingRun);          
+        }
+        
+        run(1000, 11000);
+        expect(this.fakeSys.getOutput()).toContain("10 seconds");
+        
+        run(1000, 2000);
+        expect(this.fakeSys.getOutput()).toContain("1 seconds");
+        
+        run(1000, 1100);
+        expect(this.fakeSys.getOutput()).toContain("0.1 seconds");
+
+        run(1000, 1010);
+        expect(this.fakeSys.getOutput()).toContain("0.01 seconds");
+
+        run(1000, 1001);        
+        expect(this.fakeSys.getOutput()).toContain("0.001 seconds");
+      });
+
+      it("altogether now", function(){
+        this.reporter.now = function(){return 1000}
+        this.reporter.reportRunnerStarting();
+        this.reporter.now = function(){return 1777}
+        this.reporter.reportRunnerResults(failingRun);
+        expect(this.fakeSys.getOutput()).toContain(red("Finished in 0.777 seconds"));
+      });
+      
     });
 
   });

src/node/TrivialNodeReporter.js

@@ -22,9 +22,9 @@ jasmine.TrivialNodeReporter = function(sys) {
   function redF()            { sys.print(redStr("F")); }
   function yellowStar()      { sys.print(yellowStr("*")); }
 
-  function finished(colorF)  { newline(); sys.print(colorF("Finished")); }
-  function greenFinished()   { finished(greenStr); }
-  function redFinished()     { finished(redStr); }
+  function finished(colorF, elapsed)  { newline(); sys.print(colorF("Finished in " + elapsed/1000 + " seconds")); }
+  function greenFinished(elapsed)     { finished(greenStr, elapsed); }
+  function redFinished(elapsed)       { finished(redStr, elapsed); }
   
   
   
@@ -42,7 +42,10 @@ jasmine.TrivialNodeReporter = function(sys) {
   
   var startNewLineIfNecessary = lineEnder(defaultColumnsPerLine);
   
+  this.now = function() { return new Date().getTime(); }
+  
   this.reportRunnerStarting = function() {
+    this.runnerStartTime = this.now();
     started();
   };
   
@@ -59,10 +62,12 @@ jasmine.TrivialNodeReporter = function(sys) {
   };
   
   this.reportRunnerResults = function(runner) {
+    var elapsed = this.now() - this.runnerStartTime;
+    
     if (runner.results().failedCount === 0) {
-      greenFinished();
+      greenFinished(elapsed);
     } else {
-      redFinished();
+      redFinished(elapsed);
     }
   };
 };