CI: Intermittent test failures on Python 2.7 due to standard output checks

[abn]

2020-07-30T12:06:45.9293095Z _____________________ test_add_git_constraint_with_extras ______________________
2020-07-30T12:06:45.9293242Z 
2020-07-30T12:06:45.9293418Z app = <tests.console.conftest.Application object at 0x7f85d0512210>
2020-07-30T12:06:45.9293614Z repo = <tests.console.conftest.Repository object at 0x7f85d0512250>
2020-07-30T12:06:45.9293806Z tester = <cleo.testers.command_tester.CommandTester object at 0x7f85d043a810>
2020-07-30T12:06:45.9294008Z tmp_venv = VirtualEnv("/tmp/poetry_uGE4M9/venv")
2020-07-30T12:06:45.9294100Z 
2020-07-30T12:06:45.9294280Z     def test_add_git_constraint_with_extras(app, repo, tester, tmp_venv):
2020-07-30T12:06:45.9294479Z         tester._command.set_env(tmp_venv)
2020-07-30T12:06:45.9294645Z     
2020-07-30T12:06:45.9294826Z         repo.add_package(get_package("pendulum", "1.4.4"))
2020-07-30T12:06:45.9295028Z         repo.add_package(get_package("cleo", "0.6.5"))
2020-07-30T12:06:45.9295222Z         repo.add_package(get_package("tomlkit", "0.5.5"))
2020-07-30T12:06:45.9295398Z     
2020-07-30T12:06:45.9295633Z         tester.execute("git+https://github.com/demo/demo.git[foo,bar]")
2020-07-30T12:06:45.9295834Z     
2020-07-30T12:06:45.9295998Z         expected = """\
2020-07-30T12:06:45.9296161Z     
2020-07-30T12:06:45.9296324Z     Updating dependencies
2020-07-30T12:06:45.9296495Z     Resolving dependencies...
2020-07-30T12:06:45.9296670Z     
2020-07-30T12:06:45.9296830Z     Writing lock file
2020-07-30T12:06:45.9296976Z     
2020-07-30T12:06:45.9297149Z     Package operations: 4 installs, 0 updates, 0 removals
2020-07-30T12:06:45.9297322Z     
2020-07-30T12:06:45.9298098Z       • Installing cleo (0.6.5)
2020-07-30T12:06:45.9298454Z       • Installing pendulum (1.4.4)
2020-07-30T12:06:45.9298796Z       • Installing tomlkit (0.5.5)
2020-07-30T12:06:45.9299152Z       • Installing demo (0.1.2 9cf87a2)
2020-07-30T12:06:45.9299323Z     """
2020-07-30T12:06:45.9299481Z     
2020-07-30T12:06:45.9299651Z >       assert expected.strip() == tester.io.fetch_output().strip()
2020-07-30T12:06:45.9300143Z E       AssertionError: assert 'Updating dep....1.2 9cf87a2)' == 'Updating depe....1.2 9cf87a2)'
2020-07-30T12:06:45.9300347Z E           Updating dependencies
2020-07-30T12:06:45.9300518Z E           Resolving dependencies...
2020-07-30T12:06:45.9300681Z E           
2020-07-30T12:06:45.9300850Z E           Writing lock file
2020-07-30T12:06:45.9301033Z E           
2020-07-30T12:06:45.9301207Z E           Package operations: 4 installs, 0 updates, 0 removals
2020-07-30T12:06:45.9301379Z E           
2020-07-30T12:06:45.9654993Z E             \u2022 Installing cleo (0.6.5)
2020-07-30T12:06:45.9655294Z E         +   \u2022 Installing tomlkit (0.5.5)
2020-07-30T12:06:45.9655557Z E             \u2022 Installing pendulum (1.4.4)
2020-07-30T12:06:45.9662479Z E         -   \u2022 Installing tomlkit (0.5.5)
2020-07-30T12:06:45.9662762Z E             \u2022 Installing demo (0.1.2 9cf87a2)
2020-07-30T12:06:45.9662916Z 
2020-07-30T12:06:45.9663173Z tests/console/commands/test_add.py:256: AssertionError

This might have been introduced with #2663 due the use of unicode charecters. The new installer should probably have a fallback output when dealing with non-fancy consoles.

[neersighted]

Pretty sure this has aged out of relevance especially given the end of Python 2.7 support in master.

[github-actions]

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