def _test_substitution_complex():
template = SubstitutionTemplate('/usr/${VARIABLE-default}/app')
assert template.substitute({'VARIABLE': 'src'}) == '/usr/src/app'
assert template.substitute({}) == '/usr/default/app'
template = SubstitutionTemplate('\"Hello, ${VARIABLE}!\"')
assert template.substitute({'VARIABLE': 'world'}) == '\"Hello, world!\"'
template = SubstitutionTemplate('$$VARIABLE')
assert template.substitute({'VARIABLE': 'world'}) == '$VARIABLE'
def _test_substitution_error_if_empty():
template = SubstitutionTemplate('${VARIABLE:?test error}')
assert template.substitute({'VARIABLE': 'value'}) == 'value'
with pytest.raises(UnsetRequiredSubstitution) as e:
template.substitute({'VARIABLE': ''})
assert str(e.value) == 'test error'
with pytest.raises(UnsetRequiredSubstitution) as e:
template.substitute({})
assert str(e.value) == 'test error'
def _test_substitution_error_if_unset():
template = SubstitutionTemplate('${VARIABLE?test error}')
assert template.substitute({'VARIABLE': 'value'}) == 'value'
assert template.substitute({'VARIABLE': ''}) == ''
with pytest.raises(UnsetRequiredSubstitution, message='err') as e:
template.substitute({})
assert str(e.value) == 'test error'
def _test_substitution_invalid():
template = SubstitutionTemplate('${VARIABLE')
with pytest.raises(ValueError):
template.substitute({'VARIABLE': 'world'})
template = SubstitutionTemplate('${VARIABLE }')
with pytest.raises(ValueError):
template.substitute({'VARIABLE': 'world'})
template = SubstitutionTemplate('${VARIABLE!}')
with pytest.raises(ValueError):
template.substitute({'VARIABLE': 'world'})
template = SubstitutionTemplate('${}')
with pytest.raises(ValueError):
print(template.substitute({'VARIABLE': 'world'}))
def _test_substitution_ignored():
template = SubstitutionTemplate('no substitution pattern')
assert template.substitute({}) == 'no substitution pattern'
def _test_substitution_default_if_unset():
template = SubstitutionTemplate('${VARIABLE-default}')
assert template.substitute({'VARIABLE': 'value'}) == 'value'
assert template.substitute({'VARIABLE': ''}) == ''
assert template.substitute({}) == 'default'
def _test_substitution_base():
template = SubstitutionTemplate('${VARIABLE}')
assert template.substitute({'VARIABLE': 'value'}) == 'value'
assert template.substitute({'VARIABLE': ''}) == ''
with pytest.raises(KeyError):
template.substitute({})
template = SubstitutionTemplate('$VARIABLE')
assert template.substitute({'VARIABLE': 'value'}) == 'value'
assert template.substitute({'VARIABLE': ''}) == ''
with pytest.raises(KeyError):
template.substitute({})