CLI Feature: Test suite - Milestone 1

[jrkhan]

CLI Feature: Test suite - Milestone 1

Description

This PR is for issue #13.

• Establishing pattern for unit testing for command layer of flow CLI

Submission Links & Documents

• Improvement/command layer accounts tests jrkhan-bot/flow-cli#4 (note that coverage % is temporarily lower as a result of including /internal)

Requirements Check

• Have have you met the milestone requirements? Not yet
• Have you included tests (if applicable)? In progress
• Have you met the contribution guidelines of the repos you have submitted code to (if applicable)? Yes

Other Details

• After discussion in issue thread, wanted to confirm this approach is on the right track

[sideninja]

Left some comments on the PR

[kerrywei]

closing this PR -- Gregor and the author are continuing the conversation in PR jrkhan-bot/flow-cli#4
Thank you for participating in FLIP FEST @jrkhan 👍