Autotests for Spring test generation

[alisevych]

Description

Cover main functionality with autotests.

Expected behavior

Write the structure of an autotest:

• input data
• output that we check

Smoke integration UnitTestBot tests:

• Write smoke integration tests (select ones to automate)
• Automate smoke integration tests

Smoke E2E IntelliJ UI tests:

• Write test to check UI work in a Spring project
• Write E2E smoke test on Spring Unit tests generation
• Write E2E smoke test on Spring Integration tests generation

Environment

• Integration tests included into CI/CD on GitHub + can be run locally.