diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 0000000..544e225
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,7 @@
+[report]
+omit =
+    *argparse*
+    *mock*
+    *funcsigs*
+    *pbr*
+    *six*
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..b4c1474
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+mock==1.3.0
diff --git a/tests/test_translator.py b/tests/test_translator.py
index 4761de1..242d336 100644
--- a/tests/test_translator.py
+++ b/tests/test_translator.py
@@ -1,6 +1,10 @@
+import os
 import unittest
 
+import mock
+
 from http_request_translator import translator
+from .utils import load_args
 
 
 class TestTranslator(unittest.TestCase):
@@ -277,6 +281,105 @@ def test_parse_raw_request_no_path(self):
         with self.assertRaises(ValueError):
             translator.parse_raw_request(raw_request)
 
+    def test_process_arguments_with_no_arguments(self):
+        args = load_args()
+
+        with self.assertRaises(SystemExit) as exc:
+            translator.process_arguments(args)
+
+        self.assertEqual(exc.exception.code, -1)
+
+    def test_process_arguments_with_interactive_mode(self):
+        args = load_args(language=["bash"], interactive=True)
+
+        with self.assertRaises(SystemExit) as exc:
+            with mock.patch('http_request_translator.translator.take_headers', side_effect=KeyboardInterrupt):
+                translator.process_arguments(args)
+
+        self.assertEqual(exc.exception.code, 0)
+
+    def test_process_arguments_with_request(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_file(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        with open('temp', 'w+') as f:
+            f.write(request_data)
+
+        args = load_args(language=["bash"], file='temp')
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+        os.remove('temp')
+
+    def test_process_arguments_with_no_language(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_multiple_language(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash", "php", "python"], request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_wrong_language(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["lua"], request=request_data)
+
+        with self.assertRaises(ValueError):
+            translator.process_arguments(args)
+
+    def test_process_arguments_with_data(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], data="sample=1", request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_proxy_with_scheme(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], proxy="http://someproxy.com", request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_proxy_without_scheme_without_port(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], proxy="127.0.0.1", request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_proxy_without_scheme_with_port(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], proxy="127.0.0.1:1337", request=request_data)
+
+        self.assertEqual(type(translator.process_arguments(args)), type({}))
+
+    def test_process_arguments_with_invalid_proxy_without_scheme(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], proxy="127.0.0.", request=request_data)
+
+        with self.assertRaises(ValueError):
+            translator.process_arguments(args)
+
+    def test_process_arguments_with_invalid_proxy_with_scheme(self):
+        request_data = """GET  HTTP/1.1\nHost: google.com\nCache-Control: no-cache"""
+        args = load_args(language=["bash"], proxy="http://127.0.0.", request=request_data)
+
+        with self.assertRaises(ValueError):
+            translator.process_arguments(args)
+
+    def test_process_arguments_with_no_data_and_method_post(self):
+        request_data = """POST  HTTP/1.1\nHost: google.com"""
+        args = load_args(request=request_data)
+
+        with self.assertRaises(SystemExit) as exc:
+            translator.process_arguments(args)
+
+        self.assertEqual(exc.exception.code, -1)
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/utils.py b/tests/utils.py
new file mode 100644
index 0000000..7939441
--- /dev/null
+++ b/tests/utils.py
@@ -0,0 +1,18 @@
+import argparse
+
+
+def load_args(**kwargs):
+    args = argparse.Namespace(
+                data=None,
+                file=None,
+                interactive=False,
+                language=None,
+                proxy=None,
+                request=None,
+                search_regex=None,
+                search_string=None
+            )
+    for key, value in kwargs.iteritems():
+        setattr(args, key, value)
+
+    return args