Add emoji test

tests/cassettes/test_emoji.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/2.9.1]
+    method: GET
+    uri: http://localhost:3000/api/v1/custom_emojis
+  response:
+    body: {string: '[]'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"ea5c10937cbba90ee4e0577b7d86961c"]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Request-Id: [b4431da4-958a-4fe3-8129-ac05eefacb5c]
+      X-Runtime: ['0.029122']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['2']
+    status: {code: 200, message: OK}
+version: 1

tests/test_instance.py

@@ -29,3 +29,6 @@ def test_low_version(api_low_version):
     with pytest.raises(MastodonVersionError):
         instance = api_low_version.instance()
     
+@pytest.mark.vcr()
+def test_emoji(api):
+    assert len(api.custom_emojis()) == 0