added python executable self tests

@@ -7,6 +7,7 @@ before_script:
   - "export PHANTOMJS_EXECUTABLE='phantomjs --local-to-remote-url-access=yes --ignore-ssl-errors=yes'"
 script:
   - "./bin/casperjs selftest"
+  - "./bin/casperjs __selfcommandtest"
 after_script:
   - "jshint --config=.jshintconfig ."
 notifications:

 #!/usr/bin/env python
 
+import json
 import os
+import subprocess
 import sys
 
+def test_cmd(cmd):
+    try:
+        return subprocess.check_output([__file__] + cmd.split(' '))
+    except subprocess.CalledProcessError as err:
+        sys.stderr.write('FAIL: %s\n' % ' '.join(err.cmd))
+        sys.stderr.write('      %s\n' % err.output)
+        sys.exit(1)
 
 def resolve(path):
     if os.path.islink(path):
@@ -32,9 +41,25 @@ PHANTOMJS_NATIVE_ARGS = [
     'web-security',
 ]
 CASPER_ARGS = []
+CASPER_PATH = os.path.abspath(os.path.join(os.path.dirname(resolve(__file__)), '..'))
 PHANTOMJS_ARGS = []
+SYS_ARGS = sys.argv[1:]
+
+if SYS_ARGS[0] == '__selfcommandtest':
+    print('Starting Python executable tests...')
+    pkg_version = json.loads(open('package.json').read()).get('version')
+    scripts_path = os.path.join(CASPER_PATH, 'tests', 'commands')
+    assert(test_cmd('--help').find(pkg_version) > -1)
+    assert(test_cmd('--version').strip() == pkg_version)
+    assert(test_cmd(os.path.join(scripts_path, 'script.js')) == 'it works\n')
+    test_output = test_cmd('test --no-colors ' + os.path.join(scripts_path, 'mytest.js'))
+    assert('PASS ok1' in test_output)
+    assert('PASS ok2' in test_output)
+    assert('PASS ok3' in test_output)
+    print('Python executable tests passed.')
+    sys.exit(0)
 
-for arg in sys.argv[1:]:
+for arg in SYS_ARGS:
     found = False
     for native in PHANTOMJS_NATIVE_ARGS:
         if arg.startswith('--%s' % native):
@@ -43,7 +68,6 @@ for arg in sys.argv[1:]:
     if not found:
         CASPER_ARGS.append(arg)
 
-CASPER_PATH = os.path.abspath(os.path.join(os.path.dirname(resolve(__file__)), '..'))
 CASPER_COMMAND = os.environ.get('PHANTOMJS_EXECUTABLE', 'phantomjs').split(' ')
 CASPER_COMMAND.extend(PHANTOMJS_ARGS)
 CASPER_COMMAND.extend([

+/*jshint strict:false*/
+/*global CasperError casper console phantom require*/
+casper.start('about:blank', function() {
+    this.test.pass('ok1');
+});
+
+casper.then(function() {
+    this.test.pass('ok2');
+});
+
+casper.run(function() {
+    this.test.pass('ok3');
+    this.test.done();
+});

+var casper = require('casper').create();
+casper.echo('it works');
+casper.exit();