#368: Correct tests around SystemExit context

#368 (closed): Testing exit() were not correctly written. Assertions were not tested, so tests would pass even if they shouldn't.

• correction of the form of tests (test_unit_tx.py ; test_crypto_tools.py)
• correction of the content of tests (test_unit_tx.py ; test_crypto_tools.py) Close #368 (closed).

changed milestone to %0.9.0

added Bug Test labels

assigned to @moul and unassigned @matograine

removed review request for @moul

added 3 commits

• 015b2273 - 1 commit from branch dev
• bf6cfe37 - [test] [fix] #368 (closed) : wrong use of context `with pytest.raises() as...`
• 33293c8b - [test] [fix] #368 (closed) : wrong use of context `with pytest.raises() as...`

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changed the description

changed title from 368 test system exit to #368: Correct system exit tests

changed title from #368 (closed): Correct system exit tests to #368 (closed): Correct tests around SystemExit context

approved this merge request

added 4 commits

• 33293c8b...7de42390 - 2 commits from branch dev
• 0308cc1b - [test] [fix] #368 (closed) : wrong use of context `with pytest.raises() as...`
• 5072d8de - [test] [fix] #368 (closed) : wrong use of context `with pytest.raises() as...`

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merged