Update contributing doc

Pipfile

@@ -4,9 +4,10 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [dev-packages]
-nose = "*"
 coverage = "*"
 twine = "*"
+pytest = "*"
+pytest-cov = "*"
 
 [packages]
 urllib3 = ">=2.1.0"

contributing.md

@@ -1,32 +1,35 @@
 # Contributing
 
-I am accepting pull requests. Sometimes life gets busy and it takes me a little while to get everything merged in. To help speed up the process, please write tests to cover your changes. I will review/merge them as soon as possible. 
+I am accepting pull requests. Sometimes life gets busy and it takes me a little while to get everything reviewed and merged in. To help speed up the process, please write tests to cover your changes. I will review/merge them as soon as possible. 
 
 # Testing
 
-I use [nose](https://nose.readthedocs.io/en/latest/index.html) and [Coverage](https://coverage.readthedocs.io/en/latest/) to run the test suite.   
+I use [pytest](https://docs.pytest.org/en/7.4.x/contents.html), [Coverage](https://coverage.readthedocs.io/en/latest/), and [pytest-cov](https://pytest-cov.readthedocs.io/en/latest/) to run the test suite.
 
 *WARNING*: The Tests connect to the QBO API and create/modify/delete data. DO NOT USE A PRODUCTION ACCOUNT!
 
 ## Testing setup:
 
 1. Create/login into your [Intuit Developer account](https://developer.intuit.com).
 2. On your Intuit Developer account, create a Sandbox company and an App. 
-3. Go to the Intuit Developer OAuth 2.0 Playground and fill out the form to get an **access token** and **refresh token**. You will need to copy the following values into your enviroment variables:
+3. Go to the Intuit Developer OAuth 2.0 Playground and fill out the form to get a **refresh token**. You will need to copy the following values into your enviroment variables:
   ```
   export CLIENT_ID="<Client ID>"
   export CLIENT_SECRET="<Client Secret>" 
-  export COMPANY_ID="<Realm ID>"
-  export ACCESS_TOKEN="<Access token>"
+  export COMPANY_ID="<Realm ID>"  
   export REFRESH_TOKEN="<Refresh token>"
   ```
 
-  *Note*: You will need to update the access token when it expires. 
+  *Note*: You will need to update the refresh token when it expires. 
 
-5. Install *nose* and *coverage*. Using Pip:
-  `pip install nose coverage`
+5. Install *pytest*, *coverage*, and *pytest-cov*. Using Pip (or whatever):
+  `pip install pytest coverage pytest-cov`
 
-6. Run `nosetests . --with-coverage --cover-package=quickbooks`
+6. Run all tests: ```pytest  --cov```  
+   Run only unit tests: ```pytest tests/unit --cov```   
+   Run only integration tests: ```pytest tests/intergration --cov``` 
+
+
 
 ## Creating new tests
 Normal Unit tests that do not connect to the QBO API should be located under `test/unit` Test that connect to QBO API should go under `tests/integration`. Inheriting from `QuickbooksTestCase` will automatically setup `self.qb_client` to use when connecting to QBO.