Bank Account in Elixir
Simulate a bank account supporting opening/closing, withdraws, and deposits of money. Watch out for concurrent transactions!
exercism fetch elixir bank-account
Simulate a bank account supporting opening/closing, withdrawals, and deposits of money. Watch out for concurrent transactions!
A bank account can be accessed in multiple ways. Clients can make deposits and withdrawals using the internet, mobile phones, etc. Shops can charge against the account.
Create an account that can be accessed from multiple threads/processes (terminology depends on your programming language).
It should be possible to close an account; operations against a closed account must fail.
Run the test file, and fix each of the errors in turn. When you get the first test to pass, go to the first pending or skipped test, and make that pass as well. When all of the tests are passing, feel free to submit.
Remember that passing code is just the first step. The goal is to work towards a solution that is as readable and expressive as you can make it.
Execute the tests with:
$ elixir bank_account_test.exs
In the test suites, all but the first test have been skipped.
Once you get a test passing, you can unskip the next one by
commenting out the relevant
@tag :pending with a
Or, you can enable all the tests by commenting out the
ExUnit.configure line in the test suite.
# ExUnit.configure exclude: :pending, trace: true
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Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.