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"""Test command module and argument handling."""
import pytest
from bracex.__main__ import main
from bracex import __version__
def test_expand_with_default_terminator(capsys):
"""Test that by default one expansion is printed per line."""
with pytest.raises(SystemExit) as exinfo:
main(['{a..c}'])
capture = capsys.readouterr()
assert capture.out == "a\nb\nc\n"
assert capture.err == ""
assert exinfo.value.code == 0
def test_expand_with_spaces(capsys):
"""Test that expansions can be space terminated."""
with pytest.raises(SystemExit) as exinfo:
main(['-t', ' ', '{a..c}'])
capture = capsys.readouterr()
assert capture.out == "a b c "
assert capture.err == ""
assert exinfo.value.code == 0
def test_expand_with_empty_terminators(capsys):
"""Test that expansions can be terminated by an empty string."""
with pytest.raises(SystemExit) as exinfo:
main(['-t', '', '{a..c}'])
capture = capsys.readouterr()
assert capture.out == "abc"
assert capture.err == ""
assert exinfo.value.code == 0
def test_expand_with_nul_terminators(capsys):
"""Test that expansions can be terminated by a NUL character."""
with pytest.raises(SystemExit) as exinfo:
main(['-0', '{a..c}'])
capture = capsys.readouterr()
assert capture.out == "a\x00b\x00c\x00"
assert capture.err == ""
assert exinfo.value.code == 0
def test_terminator_arguments_are_mutually_exclusive(capsys):
"""Test that contradicting terminators raise an error."""
with pytest.raises(SystemExit) as exinfo:
main(['-0', '--terminator', ' ', '{a..c}'])
capture = capsys.readouterr()
assert capture.out == ""
assert capture.err.find("error: argument --terminator/-t: not allowed with argument -0") > 0
assert exinfo.value.code > 0
def test_help(capsys):
"""Test that help is available."""
with pytest.raises(SystemExit) as exinfo:
main(['--help'])
capture = capsys.readouterr()
assert capture.out.startswith("usage:")
assert capture.err == ""
assert exinfo.value.code == 0
def test_version(capsys):
"""Test that the version is available."""
with pytest.raises(SystemExit) as exinfo:
main(['--version'])
capture = capsys.readouterr()
assert capture.out == f"{__version__}\n"
assert capture.err == ""
assert exinfo.value.code == 0
def test_no_args_is_considered_an_error(capsys):
"""Test that an error is reported when no expression is provided."""
with pytest.raises(SystemExit) as exinfo:
main([])
capture = capsys.readouterr()
assert capture.out == ""
assert capture.err.endswith("error: the following arguments are required: expression\n")
assert exinfo.value.code > 0
def test_excess_args_is_considered_an_error(capsys):
"""Test that an error is reported when too many arguments are provided."""
with pytest.raises(SystemExit) as exinfo:
main(['{a,b,c}', '{1..3}'])
capture = capsys.readouterr()
assert capture.out == ""
assert capture.err.find("error: unrecognized arguments") > 0
assert exinfo.value.code > 0
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