diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..45e4b57
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,15 @@
+language: python
+
+python:
+  - "2.6"
+  - "2.7"
+  - "3.3"
+  - "3.4"
+  - "3.5"
+  - "3.6"
+  - "nightly"
+
+install:
+  - pip install -e .
+
+script: py.test
diff --git a/tests/test_api.py b/tests/test_api.py
new file mode 100644
index 0000000..0c0adc8
--- /dev/null
+++ b/tests/test_api.py
@@ -0,0 +1,64 @@
+# import pytest
+import requests
+
+from toot import App, User, create_app, login, CLIENT_NAME, CLIENT_WEB, SCOPES
+
+
+class MockResponse:
+    def __init__(self, response_data={}):
+        self.response_data = response_data
+
+    def raise_for_status(self):
+        pass
+
+    def json(self):
+        return self.response_data
+
+
+def test_create_app(monkeypatch):
+    def mock_post(url, data):
+        assert url == 'https://bigfish.software/api/v1/apps'
+        assert data == {
+            'website': CLIENT_WEB,
+            'client_name': CLIENT_NAME,
+            'scopes': SCOPES,
+            'redirect_uris': 'urn:ietf:wg:oauth:2.0:oob'
+        }
+        return MockResponse({
+            'client_id': 'foo',
+            'client_secret': 'bar',
+        })
+
+    monkeypatch.setattr(requests, 'post', mock_post)
+
+    app = create_app('https://bigfish.software')
+
+    assert isinstance(app, App)
+    assert app.client_id == 'foo'
+    assert app.client_secret == 'bar'
+
+
+def test_login(monkeypatch):
+    app = App('https://bigfish.software', 'foo', 'bar')
+
+    def mock_post(url, data):
+        assert url == 'https://bigfish.software/oauth/token'
+        assert data == {
+            'grant_type': 'password',
+            'client_id': app.client_id,
+            'client_secret': app.client_secret,
+            'username': 'user',
+            'password': 'pass',
+            'scope': SCOPES,
+        }
+        return MockResponse({
+            'access_token': 'xxx',
+        })
+
+    monkeypatch.setattr(requests, 'post', mock_post)
+
+    user = login(app, 'user', 'pass')
+
+    assert isinstance(user, User)
+    assert user.username == 'user'
+    assert user.access_token == 'xxx'
diff --git a/tests/test_console.py b/tests/test_console.py
new file mode 100644
index 0000000..2b1249a
--- /dev/null
+++ b/tests/test_console.py
@@ -0,0 +1,75 @@
+import pytest
+import requests
+import sys
+
+from toot import User, App
+from toot.console import cmd_post_status, ConsoleError
+
+from tests.utils import MockResponse
+
+app = App('https://habunek.com', 'foo', 'bar')
+user = User('ivan@habunek.com', 'xxx')
+
+
+def test_post_status_defaults(monkeypatch):
+    def mock_prepare(request):
+        assert request.method == 'POST'
+        assert request.url == 'https://habunek.com/api/v1/statuses'
+        assert request.data == {
+            'status': '"Hello world"',
+            'visibility': 'public',
+            'media_ids[]': None,
+        }
+
+    def mock_send(*args):
+        return MockResponse({
+            'url': 'http://ivan.habunek.com/'
+        })
+
+    monkeypatch.setattr(requests.Request, 'prepare', mock_prepare)
+    monkeypatch.setattr(requests.Session, 'send', mock_send)
+
+    sys.argv = ['toot', 'post', '"Hello world"']
+    cmd_post_status(app, user)
+
+
+def test_post_status_with_options(monkeypatch):
+    def mock_prepare(request):
+        assert request.method == 'POST'
+        assert request.url == 'https://habunek.com/api/v1/statuses'
+        assert request.data == {
+            'status': '"Hello world"',
+            'visibility': 'unlisted',
+            'media_ids[]': None,
+        }
+
+    def mock_send(*args):
+        return MockResponse({
+            'url': 'http://ivan.habunek.com/'
+        })
+
+    monkeypatch.setattr(requests.Request, 'prepare', mock_prepare)
+    monkeypatch.setattr(requests.Session, 'send', mock_send)
+
+    sys.argv = ['toot', 'post', '"Hello world"',
+                '--visibility', 'unlisted']
+
+    cmd_post_status(app, user)
+
+
+def test_post_status_invalid_visibility(monkeypatch):
+    sys.argv = ['toot', 'post', '"Hello world"',
+                '--visibility', 'foo']
+
+    with pytest.raises(ConsoleError) as ex:
+        cmd_post_status(app, user)
+    assert str(ex.value) == "Invalid visibility value given: 'foo'"
+
+
+def test_post_status_invalid_media(monkeypatch):
+    sys.argv = ['toot', 'post', '"Hello world"',
+                '--media', 'does_not_exist.jpg']
+
+    with pytest.raises(ConsoleError) as ex:
+        cmd_post_status(app, user)
+    assert str(ex.value) == "File does not exist: does_not_exist.jpg"
diff --git a/tests/utils.py b/tests/utils.py
new file mode 100644
index 0000000..765dc7e
--- /dev/null
+++ b/tests/utils.py
@@ -0,0 +1,10 @@
+
+class MockResponse:
+    def __init__(self, response_data={}):
+        self.response_data = response_data
+
+    def raise_for_status(self):
+        pass
+
+    def json(self):
+        return self.response_data
diff --git a/toot/__init__.py b/toot/__init__.py
index 7a81793..d3c7e7f 100644
--- a/toot/__init__.py
+++ b/toot/__init__.py
@@ -9,6 +9,11 @@ User = namedtuple('User', ['username', 'access_token'])
 
 DEFAULT_INSTANCE = 'mastodon.social'
 
+CLIENT_NAME = 'toot - Mastodon CLI Interface'
+CLIENT_WEB = 'https://github.com/ihabunek/toot'
+
+SCOPES = 'read write follow'
+
 logger = logging.getLogger('toot')
 
 
@@ -59,7 +64,7 @@ def create_app(base_url):
     response = requests.post(url, {
         'client_name': 'toot - Mastodon CLI Interface',
         'redirect_uris': 'urn:ietf:wg:oauth:2.0:oob',
-        'scopes': 'read write',
+        'scopes': SCOPES,
         'website': 'https://github.com/ihabunek/toot',
     })
 
@@ -81,7 +86,7 @@ def login(app, username, password):
         'client_secret': app.client_secret,
         'username': username,
         'password': password,
-        'scope': 'read write',
+        'scope': SCOPES,
     })
 
     response.raise_for_status()