gecko/xpcom/tests/unit/test_nsIProcess.js

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 *
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 * for the specific language governing rights and limitations under the
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 *
 * The Original Code is XPCOM unit tests.
 *
 * The Initial Developer of the Original Code is
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// nsIProcess unit test

// get the path to {objdir}/dist/bin
var bindir = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties)
.get("CurProcD", Components.interfaces.nsIFile);

// the the os
var isWindows = ("@mozilla.org/windows-registry-key;1" in Components.classes);

var filePrefix = "";
var fileSuffix = "";

if (isWindows) {
  filePrefix = bindir.path + "\\";
  fileSuffix = ".exe";
} else {
  filePrefix = bindir.path + "/";
}


// test if a process can be started, polled for its running status
// and then killed
function test_kill()
{
  var testapp = filePrefix + "TestBlockingProcess" +fileSuffix;
  print(testapp);
 
  var file = Components.classes["@mozilla.org/file/local;1"]
                       .createInstance(Components.interfaces.nsILocalFile);
  file.initWithPath(testapp);
 
  var process = Components.classes["@mozilla.org/process/util;1"]
                          .createInstance(Components.interfaces.nsIProcess);
  process.init(file);
  
  process.run(false, [], 0);

  var rv = process.isRunning;

  if (!rv) {    
    return false;
  }

  process.kill();

  rv = process.isRunning;

  if (rv){
    return false;
  }
  return true;

}

// test if we can get an exit value from an application that is
// guaranteed to return an exit value of 42
function test_quick()
{
  var testapp = filePrefix + "TestQuickReturn" + fileSuffix;
  
  var file = Components.classes["@mozilla.org/file/local;1"]
  .createInstance(Components.interfaces.nsILocalFile);
  file.initWithPath(testapp);
  
  var process = Components.classes["@mozilla.org/process/util;1"]
  .createInstance(Components.interfaces.nsIProcess);
  process.init(file);
  
  // to get an exit value it must be a blocking process
  process.run(true, [], 0);
  
  if (process.exitValue != 42) {
    return false;
  }
  return true;
}

// test if an argument can be successfully passed to an application
// that will return -1 if "mozilla" is not the first argument
function test_arguments()
{
  var testapp = filePrefix + "TestArguments" + fileSuffix;
  
  var file = Components.classes["@mozilla.org/file/local;1"]
  .createInstance(Components.interfaces.nsILocalFile);
  file.initWithPath(testapp);
  
  var process = Components.classes["@mozilla.org/process/util;1"]
  .createInstance(Components.interfaces.nsIProcess);
  process.init(file);
  
  var args= ["mozilla"];
  
  process.run(true, args, args.length);
  
  if (process.exitValue) {
    return false;
  }
  return true;
}

function run_test() {
  do_check_true(test_kill());
  do_check_true(test_quick());
  do_check_true(test_arguments());
}