Perfect Life app - test your software like google

As far as we talk about automated tests there are 3 levels of testing:
1. Unit tests
2. Integration tests
3. System tests
Google propose another test classification, but it can be mapped directly to the above 3 points. So google uses 3 following test levels:
1. Small test
2. Medium tests
3. Large tests

Google also defines how to keep the balance between test types. Here it is:
1. Small test - 70%
2. Medium tests - 20%
3. Large tests - 10%

Today I'll show you how in my Perfect Life application I'm doing integration tests.
In small project i think medium/integration test should play important role and I'd dedicate 50% of my tests to integration.

Let's jump into the code. This is a client class placed in Xamarin application, that is responsible for calling .NET Core web service:


This is a test for this class. Note it calls real web service:


So for small project to keep test balance I would follow the following proportion:
1. Small test - 45%
2. Medium tests - 50%
3. Large tests - 5% - also I would limit the large tests part to manual.

Dear reader, what is your ideal test proportion that you follow?