We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Allow plugin repos to test against universal test suite
**Is your feature request related to a problem? Please describe.**
There are several plugin repos for custom connectors (Hive, Azure, Snowflake, etc.), and there is increasing interest from the community in contributing plugins. One blocker for many folks is that there is no easy way to test their custom connector against our universal test suite. Someone working on a plugin repo should be able to test their connector against the universal test suite with minimal changes in their repo. 

**Describe the solution you'd like**
The Feast team has come up with two solutions. 

The first solution is a temporary fix to unblock folks who wish to start testing immediately. We recommend that you add `feast` as a [git submodule](https://git-scm.com/book/en/v2/Git-Tools-Submodules) in your plugin repo, and then install `feast` in editable mode by navigating to `feast` and running `pip install -e sdk/python/[ci]` as detailed [here](https://github.com/feast-dev/feast/blob/master/CONTRIBUTING.md). This will allow you to `import feast`, and will also allow you to run our test suite with `pytest`. For example, in `feast` you should be able to run `make test`, and all unit tests should succeed. In order to run the full suite of integration tests with your custom connector, all you need to do is modify `FULL_REPO_CONFIGS` in `sdk/python/tests/integration/feature_repos/repo_configuration.py`. Most of our integration tests rely on pytest fixtures defined in `conftest.py`, most of which are parametrized based on `FULL_REPO_CONFIGS`. The main thing you will need to do in order to overwrite `FULL_REPO_CONFIGS` is to write a `DataSourceCreator`. We consider this solution a temporary fix because it still requires that the user to modify the `feast` repo directly, even if it's in a git submodule.

The second solution, which extends the first solution to be more viable in the long-term, will be to allow users to overwrite `FULL_REPO_CONFIGS` through an environment variable. This means that after adding `feast` as a git submodule, users should be able to directly run integration tests without ever needing to modify the `feast` repo. We intend to build this functionality out eventually, but are currently working on several other higher-priority features. If anyone in the community wants to take this on, that would be great!

**Describe alternatives you've considered**
N/A

**Additional context**
Add any other context or screenshots about the feature request here.


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `sdk/python/feast/constants.py`
Content:
```
1 #
2 #  Copyright 2019 The Feast Authors
3 #
4 #  Licensed under the Apache License, Version 2.0 (the "License");
5 #  you may not use this file except in compliance with the License.
6 #  You may obtain a copy of the License at
7 #
8 #      https://www.apache.org/licenses/LICENSE-2.0
9 #
10 #  Unless required by applicable law or agreed to in writing, software
11 #  distributed under the License is distributed on an "AS IS" BASIS,
12 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 #  See the License for the specific language governing permissions and
14 #  limitations under the License.
15 #
16 
17 # Maximum interval(secs) to wait between retries for retry function
18 MAX_WAIT_INTERVAL: str = "60"
19 
20 AWS_LAMBDA_FEATURE_SERVER_IMAGE = "feastdev/feature-server:aws"
21 
22 # feature_store.yaml environment variable name for remote feature server
23 FEATURE_STORE_YAML_ENV_NAME: str = "FEATURE_STORE_YAML_BASE64"
24 
25 # Environment variable for toggling usage
26 FEAST_USAGE = "FEAST_USAGE"
27
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/sdk/python/feast/constants.py b/sdk/python/feast/constants.py
--- a/sdk/python/feast/constants.py
+++ b/sdk/python/feast/constants.py
@@ -24,3 +24,6 @@
 
 # Environment variable for toggling usage
 FEAST_USAGE = "FEAST_USAGE"
+
+# Environment variable for the path for overwriting universal test configs
+FULL_REPO_CONFIGS_MODULE_ENV_NAME: str = "FULL_REPO_CONFIGS_MODULE"

{"golden_diff": "diff --git a/sdk/python/feast/constants.py b/sdk/python/feast/constants.py\n--- a/sdk/python/feast/constants.py\n+++ b/sdk/python/feast/constants.py\n@@ -24,3 +24,6 @@\n \n # Environment variable for toggling usage\n FEAST_USAGE = \"FEAST_USAGE\"\n+\n+# Environment variable for the path for overwriting universal test configs\n+FULL_REPO_CONFIGS_MODULE_ENV_NAME: str = \"FULL_REPO_CONFIGS_MODULE\"\n", "issue": "Allow plugin repos to test against universal test suite\n**Is your feature request related to a problem? Please describe.**\r\nThere are several plugin repos for custom connectors (Hive, Azure, Snowflake, etc.), and there is increasing interest from the community in contributing plugins. One blocker for many folks is that there is no easy way to test their custom connector against our universal test suite. Someone working on a plugin repo should be able to test their connector against the universal test suite with minimal changes in their repo. \r\n\r\n**Describe the solution you'd like**\r\nThe Feast team has come up with two solutions. \r\n\r\nThe first solution is a temporary fix to unblock folks who wish to start testing immediately. We recommend that you add `feast` as a [git submodule](https://git-scm.com/book/en/v2/Git-Tools-Submodules) in your plugin repo, and then install `feast` in editable mode by navigating to `feast` and running `pip install -e sdk/python/[ci]` as detailed [here](https://github.com/feast-dev/feast/blob/master/CONTRIBUTING.md). This will allow you to `import feast`, and will also allow you to run our test suite with `pytest`. For example, in `feast` you should be able to run `make test`, and all unit tests should succeed. In order to run the full suite of integration tests with your custom connector, all you need to do is modify `FULL_REPO_CONFIGS` in `sdk/python/tests/integration/feature_repos/repo_configuration.py`. Most of our integration tests rely on pytest fixtures defined in `conftest.py`, most of which are parametrized based on `FULL_REPO_CONFIGS`. The main thing you will need to do in order to overwrite `FULL_REPO_CONFIGS` is to write a `DataSourceCreator`. We consider this solution a temporary fix because it still requires that the user to modify the `feast` repo directly, even if it's in a git submodule.\r\n\r\nThe second solution, which extends the first solution to be more viable in the long-term, will be to allow users to overwrite `FULL_REPO_CONFIGS` through an environment variable. This means that after adding `feast` as a git submodule, users should be able to directly run integration tests without ever needing to modify the `feast` repo. We intend to build this functionality out eventually, but are currently working on several other higher-priority features. If anyone in the community wants to take this on, that would be great!\r\n\r\n**Describe alternatives you've considered**\r\nN/A\r\n\r\n**Additional context**\r\nAdd any other context or screenshots about the feature request here.\r\n\n", "before_files": [{"content": "#\n#  Copyright 2019 The Feast Authors\n#\n#  Licensed under the Apache License, Version 2.0 (the \"License\");\n#  you may not use this file except in compliance with the License.\n#  You may obtain a copy of the License at\n#\n#      https://www.apache.org/licenses/LICENSE-2.0\n#\n#  Unless required by applicable law or agreed to in writing, software\n#  distributed under the License is distributed on an \"AS IS\" BASIS,\n#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n#  See the License for the specific language governing permissions and\n#  limitations under the License.\n#\n\n# Maximum interval(secs) to wait between retries for retry function\nMAX_WAIT_INTERVAL: str = \"60\"\n\nAWS_LAMBDA_FEATURE_SERVER_IMAGE = \"feastdev/feature-server:aws\"\n\n# feature_store.yaml environment variable name for remote feature server\nFEATURE_STORE_YAML_ENV_NAME: str = \"FEATURE_STORE_YAML_BASE64\"\n\n# Environment variable for toggling usage\nFEAST_USAGE = \"FEAST_USAGE\"\n", "path": "sdk/python/feast/constants.py"}], "after_files": [{"content": "#\n#  Copyright 2019 The Feast Authors\n#\n#  Licensed under the Apache License, Version 2.0 (the \"License\");\n#  you may not use this file except in compliance with the License.\n#  You may obtain a copy of the License at\n#\n#      https://www.apache.org/licenses/LICENSE-2.0\n#\n#  Unless required by applicable law or agreed to in writing, software\n#  distributed under the License is distributed on an \"AS IS\" BASIS,\n#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n#  See the License for the specific language governing permissions and\n#  limitations under the License.\n#\n\n# Maximum interval(secs) to wait between retries for retry function\nMAX_WAIT_INTERVAL: str = \"60\"\n\nAWS_LAMBDA_FEATURE_SERVER_IMAGE = \"feastdev/feature-server:aws\"\n\n# feature_store.yaml environment variable name for remote feature server\nFEATURE_STORE_YAML_ENV_NAME: str = \"FEATURE_STORE_YAML_BASE64\"\n\n# Environment variable for toggling usage\nFEAST_USAGE = \"FEAST_USAGE\"\n\n# Environment variable for the path for overwriting universal test configs\nFULL_REPO_CONFIGS_MODULE_ENV_NAME: str = \"FULL_REPO_CONFIGS_MODULE\"\n", "path": "sdk/python/feast/constants.py"}]}