Feature 302 NGSI-LD reformulate scenario (Wait 60 seconds as described in tutorial and ...)

[flopezag]

The current definition of the ScenarioI "Wait 60 seconds as described in tutorial and ..." is strange defined. It is mixed the WHEN and THEN behaviour in the WHEN sentence. I suggest to change following the following example.

Current definition:

Scenario: Wait 60 seconds as described in tutorial and start Checking Flink docker output so we can test that data from Context-Broker is sent to Flink
          Given I wait "60" seconds
          When  I Compare next lines in terminal flink-logs at least I can find 1 in stdout with a timeout 10 matching filename 01.expected_on_terminal.txt
          And   I flush the terminal flink-logs queues

Example of expected decoupled definition:

Scenario: Wait 60 seconds as described in tutorial and start Checking Flink docker output so we can test that data from Context-Broker is sent to Flink
          Given I wait "60" seconds
          When  I see the lines in terminal flink-logs 
          Then  I can find at least 1 in stdout with a timeout 10 seconds matching filename "01.expected_on_terminal.txt"
          And   I flush the terminal flink-logs queues