InMemoryIdentityStoreTests - Create tests with various password encoding schemes

[TheoGkoumas]

Following the guideline of feature test strategy, create a new test class that covers the following cases:

• Test log file output for in-memory store usage warning
• Test authentication with plain text password
• Test authentication with XOR encoded password
• Test authentication with Hash encoded password
• Test authentication with AES encoded password
• Negative test: Try to authenticate with incorrect password
• Negative test: User with valid password but insufficient groups
• Negative test: User with badly encoded password
• Test that no unexpected error messages appear during normal operation

Test class name: InMemoryIdentityStoreTests

Implementation

1. Create an Application with a Servlet with a protected REST API (protected by roles "caller" and "user", for example, and map that to named groups - such as "caller" and "user").
2. In the same application, create main class which has an @InMemoryIdentityStoreDefinition definition including multiple credential data - callers, passwords and (optional) groups