Add /shell/run tests

These tests cover:
- Correct request with echo
- Correct request without echo
- No json request
- Malformed json request

tests/units/test_0003_shellrun.py

@@ -0,0 +1,65 @@
+from server import Server
+from client import Client
+import unittest
+
+class TestShellRunMethods(unittest.TestCase):
+
+    def test_post_with_echo(self):
+        req_json = '{"run":"echo \\"croqueta\\"", "echo":true}'
+        response_json = '{"out": "\\"croqueta\\"\\n"}'
+        req = 'POST /shell/run HTTP/1.0\r\nContent-Length:'+ \
+              str(len(req_json)) + \
+              '\r\nContent-Type:application/json\r\n\r\n' + req_json
+        resp = 'HTTP/1.0 200 OK\r\nContent-Length:' + \
+               str(len(response_json)) + \
+               '\r\nContent-Type:application/json\r\n\r\n' + response_json
+        c = Client()
+        s = Server()
+        s.connect()
+        s.send(req)
+        server_response = s.recv()
+        s.stop()
+        c.stop()
+        self.assertEqual(server_response, resp)
+
+    def test_post_without_echo(self):
+        req_json = '{"run":"echo 1", "echo":false}'
+        req = 'POST /shell/run HTTP/1.0\r\nContent-Length:'+ \
+              str(len(req_json)) + \
+              '\r\nContent-Type:application/json\r\n\r\n' + req_json
+        resp = 'HTTP/1.0 200 OK\r\n\r\n'
+        c = Client()
+        s = Server()
+        s.connect()
+        s.send(req)
+        server_response = s.recv()
+        s.stop()
+        c.stop()
+        self.assertEqual(server_response, resp)
+
+    def test_no_json(self):
+        c = Client()
+        s = Server()
+        s.connect(probe=False)
+        s.send('POST /shell/run HTTP/1.0\r\nContent-Length:0\r\n\r\n')
+        response = s.recv()
+        s.stop()
+        c.stop()
+        self.assertEqual(response, 'HTTP/1.0 400 Bad Request\r\n\r\n')
+
+    def test_malformed_json(self):
+        json = '{"wrong_param": 0}'
+        len_json = str(len(json))
+        msg = 'POST /shell/run HTTP/1.0\r\nContent-Length:' + len_json + \
+              '\r\nContent-Type:application/json\r\n\r\n' + json
+        c = Client()
+        s = Server()
+        s.connect(probe=False)
+        s.send(msg)
+        response = s.recv()
+        s.stop()
+        c.stop()
+        self.assertEqual(response, 'HTTP/1.0 400 Bad Request\r\n\r\n')
+
+if __name__ == '__main__':
+    unittest.main()