add test for search method

tests/cassettes/test_search.yaml

@@ -0,0 +1,27 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      User-Agent: [python-requests/2.18.4]
+    method: GET
+    uri: http://localhost:3000/api/v1/search?resolve=False&q=mastodonpy_test
+  response:
+    body: {string: '{"hashtags":[],"accounts":[{"id":"1234567890123456","username":"mastodonpy_test","acct":"mastodonpy_test","display_name":"","locked":true,"created_at":"2017-11-30T02:04:02.381Z","note":"\u003cp\u003e\u003c/p\u003e","url":"http://localhost:3000/@mastodonpy_test","avatar":"http://localhost:3000/avatars/original/missing.png","avatar_static":"http://localhost:3000/avatars/original/missing.png","header":"http://localhost:3000/headers/original/missing.png","header_static":"http://localhost:3000/headers/original/missing.png","followers_count":0,"following_count":0,"statuses_count":0}],"statuses":[]}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"ca9aba75f5a1bb7abfc7ef167bd9a5a4"]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Request-Id: [1bde23af-0df6-4e29-bc1c-d9bb161702b3]
+      X-Runtime: ['0.024721']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['599']
+    status: {code: 200, message: OK}
+version: 1

tests/test_search.py

@@ -0,0 +1,6 @@
+import pytest
+
+@pytest.mark.vcr()
+def test_search(api):
+    results = api.search('mastodonpy_test')
+    assert isinstance(results, dict)