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import pytest
def test_selection_question(console):
"A question with a dictionary of options can be presented to the user."
console.values = ["3"]
options = {
"first": "The first option",
"second": "The second option",
"third": "The third option",
"fourth": "The fourth option",
}
result = console.selection_question(
description="Test",
intro="This is a test",
options=options,
)
# Input is requested once
assert console.prompts == ["Test: "]
# "third" is the key of the third option.
assert result == "third"
def test_selection_question_list(console):
"""If selection_question is given a list of values, they're presented as
provided."""
console.values = ["3"]
options = [
"The first option",
"The second option",
"The third option",
"The fourth option",
]
result = console.selection_question(
description="Test",
intro="This is a test",
options=options,
)
# Input is requested once
assert console.prompts == ["Test: "]
# The third option is the third option :-)
assert result == "The third option"
def test_selection_question_bad_input(console):
# In order, return:
# blank
# 'asdf'
# '10'
# '3'
console.values = ["", "asdf", "10", "3"]
options = {
"first": "The first option",
"second": "The second option",
"third": "The third option",
"fourth": "The fourth option",
}
result = console.selection_question(
description="Test",
intro="This is a test",
options=options,
)
# Input is requested five times; first four cause errors.
assert console.prompts == ["Test: "] * 4
# The third option was eventually selected
assert result == "third"
@pytest.mark.parametrize("index, default", [("1", "first"), ("3", "third")])
def test_selection_question_default(console, index, default):
"""If selection_question has a default, it is returned for no input."""
# Return an empty response when prompted as though the user press entered
console.values = [""]
options = {
"first": "The first option",
"second": "The second option",
"third": "The third option",
"fourth": "The fourth option",
}
result = console.selection_question(
description="Test",
intro="This is a test",
options=options,
default=default,
)
# Input is requested once
assert console.prompts == [f"Test [{index}]: "]
# The default option is returned
assert result == default
def test_override_used(console, capsys):
"""The override is used if valid."""
override_value = "value"
assert (
console.selection_question(
intro="intro",
description="My variable",
default=None,
options=["value", "some_value", "other_value"],
override_value="value",
)
== "value"
)
assert f"Using override value {override_value!r}" in capsys.readouterr().out
def test_override_validation(console, capsys):
"""The override is not used if it is not a valid option."""
console.values = ["3"]
result = console.selection_question(
intro="intro",
description="My variable",
default="value",
options=["value", "some_value", "other_value"],
override_value="invalid_value",
)
output = capsys.readouterr().out
assert "Invalid override value for My variable: 'invalid_value'" in output
# "other value" was selected by the user after validation failed.
assert result == "other_value"
def test_default_value_has_correct_index(console):
"""The default value is used and has the correct index if it is a valid option."""
console.values = [""]
result = console.selection_question(
intro="intro",
description="My variable",
default="some_value",
options=["value", "some_value", "other_value"],
override_value=None,
)
# The result is the default value
assert result == "some_value"
def test_exception_if_wrong_default(console):
"""An exception is raised if the default value is not a valid option."""
console.values = [""]
with pytest.raises(
ValueError,
match=r"'invalid_value' is not a valid default value",
):
console.selection_question(
intro="intro",
description="My variable",
default="invalid_value",
options=["value", "some_value", "other_value"],
override_value=None,
)
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