ProtostarFixture

[Radinyn]

edited by: @kasperski95

• added boundary/learning tests to GatewayFacade
• added ProtostarFixture utility based on various experiments in order to:
  • simplify process of creating integration tests
  • improve tests readability by:
    • removing implementation details from tests
    • improving collocation (cairo files can be defined in Python test suite)
  • reduce the maintainance cost by:
    • preventing changes in interfaces from propagate to all tests
    • allowing removing compilation output fixtures from the codebase
  • test arguments in integration tests rather than e2e
• fixed saving Migrator output when cwd was different from the project root

[codecov]

Codecov Report

Merging #566 (3434ca1) into master (9c4c818) will increase coverage by 1.16%.
The diff coverage is 96.77%.

@@            Coverage Diff             @@
##           master     #566      +/-   ##
==========================================
+ Coverage   82.72%   83.88%   +1.16%     
==========================================
  Files         189      190       +1     
  Lines        6279     6294      +15     
==========================================
+ Hits         5194     5280      +86     
+ Misses       1085     1014      -71     

Impacted Files	Coverage Δ
protostar/migrator/migrator.py	96.29% <80.00%> (+7.83%)	⬆️
protostar/__init__.py	100.00% <100.00%> (ø)
protostar/commands/build/build_command.py	90.90% <100.00%> (+14.24%)	⬆️
protostar/commands/init/init_command.py	92.30% <100.00%> (+20.51%)	⬆️
...mmands/init/project_creator/new_project_creator.py	97.50% <100.00%> (+40.74%)	⬆️
protostar/commands/migrate/migrate_command.py	96.15% <100.00%> (+2.03%)	⬆️
protostar/composition_root.py	100.00% <100.00%> (ø)
protostar/migrator/migrator_test.py	100.00% <100.00%> (ø)
...otostar/protostar_toml/io/protostar_toml_reader.py	100.00% <100.00%> (ø)
protostar/starknet_gateway/gateway_facade.py	87.62% <100.00%> (+4.12%)	⬆️
... and 16 more

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[mkaput]

could we please split this PR into migration call and ProtostarFixture? Lots of stuff going on here :(