7 test coverage up to 80%

[0xp3gasus]

Description

The tests of the RPC and Web sockets methods of the BTC and ETH packages in the corresponding Regtest network developed.

Can not be up to 80% until Web Sockets refactor

Bug solved at opening schemas files

Fixes #7
Fixes #19

Dependencies (if any)

• Connector Python version changed from 3 to 3.7 because of web python module error
• Connector requirements updated to run tests

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Tests have been developed making requests to regtest nodes and comparing responses with Connector responses.
Packages used for tests: pytest and coverage

• BTC Tests

BTC tests are developed in file Connector/tests/btc/test_btc.py

• ETH Tests

ETH tests are developed in file Connector/tests/eth/test_eth

Circle CI workflow finished successfully

Test Configuration:
Tests run at Circle Ci virtual machine

Good practices to consider

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[phoenix-web3]

Some changes explaining everything of testing part should be added to README.md before merging this PR.

At least, we need to explain how to execute locally lint and tests.