TDD Set in Go (golang)

A Set Implemented in Multiple Ways in Go With BDD Style Tests Using Only The Standard Library

A friend of mine wanted to be introduced to practice pair programming, Go, and RPIs (Rob’s Pairing Interview) in preparation for an interview. So the initial version of this codebase was the result of that pairing session. We paired for a little under two hours. Subsequently, I spent a about two hours finishing the linked list and writing the map implementation. I also refactored the test suite to follow a more BDD style.

Example Test Output

=== RUN   TestBehavior
=== RUN   TestBehavior/MapSet
=== RUN   TestBehavior/MapSet/IsEmpty
=== RUN   TestBehavior/MapSet/IsEmpty/when_a_new_set_is_empty
=== RUN   TestBehavior/MapSet/IsEmpty/when_a_set_has_had_an_element_inserted
=== RUN   TestBehavior/MapSet/Contains
=== RUN   TestBehavior/MapSet/Contains/when_a_new_set_is_empty
=== RUN   TestBehavior/MapSet/Contains/when_a_set_has_an_element_inserted
=== RUN   TestBehavior/MapSet/Insert
=== RUN   TestBehavior/MapSet/Insert/when_a_new_set_is_empty
=== RUN   TestBehavior/MapSet/Insert/when_a_set_already_has_an_element
=== RUN   TestBehavior/MapSet/Remove
=== RUN   TestBehavior/MapSet/Remove/when_a_new_set_is_empty
=== RUN   TestBehavior/MapSet/Remove/when_a_set_is_contains_one_element
=== RUN   TestBehavior/MapSet/Remove/when_an_existing_element_is_removed
=== RUN   TestBehavior/MapSet/Remove/when_an_existing_element_is_removed_from_a_larger_set
=== RUN   TestBehavior/MapSet/SelectOne
=== RUN   TestBehavior/MapSet/SelectOne/when_a_new_set_is_empty
=== RUN   TestBehavior/MapSet/SelectOne/when_a_set_has_one_number
=== RUN   TestBehavior/MapSet/SelectOne/when_a_set_has_multiple_elements
=== RUN   TestBehavior/MapSet/String
=== RUN   TestBehavior/SliceSet
=== RUN   TestBehavior/SliceSet/IsEmpty
=== RUN   TestBehavior/SliceSet/IsEmpty/when_a_new_set_is_empty
=== RUN   TestBehavior/SliceSet/IsEmpty/when_a_set_has_had_an_element_inserted
=== RUN   TestBehavior/SliceSet/Contains
=== RUN   TestBehavior/SliceSet/Contains/when_a_new_set_is_empty
=== RUN   TestBehavior/SliceSet/Contains/when_a_set_has_an_element_inserted
=== RUN   TestBehavior/SliceSet/Insert
=== RUN   TestBehavior/SliceSet/Insert/when_a_new_set_is_empty
=== RUN   TestBehavior/SliceSet/Insert/when_a_set_already_has_an_element
=== RUN   TestBehavior/SliceSet/Remove
=== RUN   TestBehavior/SliceSet/Remove/when_a_new_set_is_empty
=== RUN   TestBehavior/SliceSet/Remove/when_a_set_is_contains_one_element
=== RUN   TestBehavior/SliceSet/Remove/when_an_existing_element_is_removed
=== RUN   TestBehavior/SliceSet/Remove/when_an_existing_element_is_removed_from_a_larger_set
=== RUN   TestBehavior/SliceSet/SelectOne
=== RUN   TestBehavior/SliceSet/SelectOne/when_a_new_set_is_empty
=== RUN   TestBehavior/SliceSet/SelectOne/when_a_set_has_one_number
=== RUN   TestBehavior/SliceSet/SelectOne/when_a_set_has_multiple_elements
=== RUN   TestBehavior/SliceSet/String
=== RUN   TestBehavior/LLSet
=== RUN   TestBehavior/LLSet/IsEmpty
=== RUN   TestBehavior/LLSet/IsEmpty/when_a_new_set_is_empty
=== RUN   TestBehavior/LLSet/IsEmpty/when_a_set_has_had_an_element_inserted
=== RUN   TestBehavior/LLSet/Contains
=== RUN   TestBehavior/LLSet/Contains/when_a_new_set_is_empty
=== RUN   TestBehavior/LLSet/Contains/when_a_set_has_an_element_inserted
=== RUN   TestBehavior/LLSet/Insert
=== RUN   TestBehavior/LLSet/Insert/when_a_new_set_is_empty
=== RUN   TestBehavior/LLSet/Insert/when_a_set_already_has_an_element
=== RUN   TestBehavior/LLSet/Remove
=== RUN   TestBehavior/LLSet/Remove/when_a_new_set_is_empty
=== RUN   TestBehavior/LLSet/Remove/when_a_set_is_contains_one_element
=== RUN   TestBehavior/LLSet/Remove/when_an_existing_element_is_removed
=== RUN   TestBehavior/LLSet/Remove/when_an_existing_element_is_removed_from_a_larger_set
=== RUN   TestBehavior/LLSet/SelectOne
=== RUN   TestBehavior/LLSet/SelectOne/when_a_new_set_is_empty
=== RUN   TestBehavior/LLSet/SelectOne/when_a_set_has_one_number
=== RUN   TestBehavior/LLSet/SelectOne/when_a_set_has_multiple_elements
=== RUN   TestBehavior/LLSet/String
--- PASS: TestBehavior (0.00s)
    --- PASS: TestBehavior/MapSet (0.00s)
        --- PASS: TestBehavior/MapSet/IsEmpty (0.00s)
            --- PASS: TestBehavior/MapSet/IsEmpty/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/MapSet/IsEmpty/when_a_set_has_had_an_element_inserted (0.00s)
        --- PASS: TestBehavior/MapSet/Contains (0.00s)
            --- PASS: TestBehavior/MapSet/Contains/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/MapSet/Contains/when_a_set_has_an_element_inserted (0.00s)
        --- PASS: TestBehavior/MapSet/Insert (0.00s)
            --- PASS: TestBehavior/MapSet/Insert/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/MapSet/Insert/when_a_set_already_has_an_element (0.00s)
        --- PASS: TestBehavior/MapSet/Remove (0.00s)
            --- PASS: TestBehavior/MapSet/Remove/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/MapSet/Remove/when_a_set_is_contains_one_element (0.00s)
            --- PASS: TestBehavior/MapSet/Remove/when_an_existing_element_is_removed (0.00s)
            --- PASS: TestBehavior/MapSet/Remove/when_an_existing_element_is_removed_from_a_larger_set (0.00s)
        --- PASS: TestBehavior/MapSet/SelectOne (0.00s)
            --- PASS: TestBehavior/MapSet/SelectOne/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/MapSet/SelectOne/when_a_set_has_one_number (0.00s)
            --- PASS: TestBehavior/MapSet/SelectOne/when_a_set_has_multiple_elements (0.00s)
        --- PASS: TestBehavior/MapSet/String (0.00s)
    --- PASS: TestBehavior/SliceSet (0.00s)
        --- PASS: TestBehavior/SliceSet/IsEmpty (0.00s)
            --- PASS: TestBehavior/SliceSet/IsEmpty/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/SliceSet/IsEmpty/when_a_set_has_had_an_element_inserted (0.00s)
        --- PASS: TestBehavior/SliceSet/Contains (0.00s)
            --- PASS: TestBehavior/SliceSet/Contains/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/SliceSet/Contains/when_a_set_has_an_element_inserted (0.00s)
        --- PASS: TestBehavior/SliceSet/Insert (0.00s)
            --- PASS: TestBehavior/SliceSet/Insert/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/SliceSet/Insert/when_a_set_already_has_an_element (0.00s)
        --- PASS: TestBehavior/SliceSet/Remove (0.00s)
            --- PASS: TestBehavior/SliceSet/Remove/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/SliceSet/Remove/when_a_set_is_contains_one_element (0.00s)
            --- PASS: TestBehavior/SliceSet/Remove/when_an_existing_element_is_removed (0.00s)
            --- PASS: TestBehavior/SliceSet/Remove/when_an_existing_element_is_removed_from_a_larger_set (0.00s)
        --- PASS: TestBehavior/SliceSet/SelectOne (0.00s)
            --- PASS: TestBehavior/SliceSet/SelectOne/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/SliceSet/SelectOne/when_a_set_has_one_number (0.00s)
            --- PASS: TestBehavior/SliceSet/SelectOne/when_a_set_has_multiple_elements (0.00s)
        --- PASS: TestBehavior/SliceSet/String (0.00s)
    --- PASS: TestBehavior/LLSet (0.00s)
        --- PASS: TestBehavior/LLSet/IsEmpty (0.00s)
            --- PASS: TestBehavior/LLSet/IsEmpty/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/LLSet/IsEmpty/when_a_set_has_had_an_element_inserted (0.00s)
        --- PASS: TestBehavior/LLSet/Contains (0.00s)
            --- PASS: TestBehavior/LLSet/Contains/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/LLSet/Contains/when_a_set_has_an_element_inserted (0.00s)
        --- PASS: TestBehavior/LLSet/Insert (0.00s)
            --- PASS: TestBehavior/LLSet/Insert/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/LLSet/Insert/when_a_set_already_has_an_element (0.00s)
        --- PASS: TestBehavior/LLSet/Remove (0.00s)
            --- PASS: TestBehavior/LLSet/Remove/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/LLSet/Remove/when_a_set_is_contains_one_element (0.00s)
            --- PASS: TestBehavior/LLSet/Remove/when_an_existing_element_is_removed (0.00s)
            --- PASS: TestBehavior/LLSet/Remove/when_an_existing_element_is_removed_from_a_larger_set (0.00s)
        --- PASS: TestBehavior/LLSet/SelectOne (0.00s)
            --- PASS: TestBehavior/LLSet/SelectOne/when_a_new_set_is_empty (0.00s)
            --- PASS: TestBehavior/LLSet/SelectOne/when_a_set_has_one_number (0.00s)
            --- PASS: TestBehavior/LLSet/SelectOne/when_a_set_has_multiple_elements (0.00s)
        --- PASS: TestBehavior/LLSet/String (0.00s)
PASS
coverage: 100.0% of statements
ok  	github.com/crhntr/tdd-set	0.013s