Rewrite tests.

[a-t-0]

• Apply the 1 test one task principle.
• Sort the tests SetUp() functions on what they need per file, and create a single function in the test folder that generates those requirements, and call that function from the SetUp() functions, instead of cluttering each test with a large SetUp() function (and its accompanying imports).
• NEXT UP: Apply loading the _dim from the InitialiseDim.sol contract like in ReceiveAcceptedOffer.t.sol.
• Move the unit tests into functional tests and unit tests. Per test, determine if it is functional or unit and when you move it, create a docstring that describes what it tests, and copy the setup.
  • If you put the first test in a functional file test, create a documentation list of all the functionalities that that file will test.
  • If a functional test should not be in a method functional test file, put it in the file whose functionality is tested (most), and give the test filename one that describes the functionality that is being tested.