tor/changes/ticket18873

  o Code simplification and refactoring:
    - Extracted dummy_origin_circuit_new so it can be used by other test
      functions.
    - Refactor circuit_predict_and_launch_new for readability and testability.
    - Added unit tests for extracted functions.
    - Extracted magic numbers in circuituse.c into defined variables.
    - Refactor circuit_is_available_for_use to remove unnecessary check
moving useful test helper to test_helpers.h 2016-10-16 13:40:37 +02:00			`o Code simplification and refactoring:`
			`- Extracted dummy_origin_circuit_new so it can be used by other test`
			`functions.`
Refactor circuit_predict_and_launch_new 2016-10-14 14:00:35 +02:00			`- Refactor circuit_predict_and_launch_new for readability and testability.`
			`- Added unit tests for extracted functions.`
extract magic numbers in circuituse.c 2016-10-23 17:51:09 +02:00			`- Extracted magic numbers in circuituse.c into defined variables.`
Refactor to remove unnecessary check in circuit_is_available_for_use 2016-11-02 15:45:02 +01:00			`- Refactor circuit_is_available_for_use to remove unnecessary check`