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from prompt_toolkit.shortcuts.prompt import _split_multiline_prompt
def test_split_multiline_prompt():
# Test 1: no newlines:
tokens = [("class:testclass", "ab")]
has_before_tokens, before, first_input_line = _split_multiline_prompt(
lambda: tokens
)
assert has_before_tokens() is False
assert before() == []
assert first_input_line() == [
("class:testclass", "a"),
("class:testclass", "b"),
]
# Test 1: multiple lines.
tokens = [("class:testclass", "ab\ncd\nef")]
has_before_tokens, before, first_input_line = _split_multiline_prompt(
lambda: tokens
)
assert has_before_tokens() is True
assert before() == [
("class:testclass", "a"),
("class:testclass", "b"),
("class:testclass", "\n"),
("class:testclass", "c"),
("class:testclass", "d"),
]
assert first_input_line() == [
("class:testclass", "e"),
("class:testclass", "f"),
]
# Edge case 1: starting with a newline.
tokens = [("class:testclass", "\nab")]
has_before_tokens, before, first_input_line = _split_multiline_prompt(
lambda: tokens
)
assert has_before_tokens() is True
assert before() == []
assert first_input_line() == [("class:testclass", "a"), ("class:testclass", "b")]
# Edge case 2: starting with two newlines.
tokens = [("class:testclass", "\n\nab")]
has_before_tokens, before, first_input_line = _split_multiline_prompt(
lambda: tokens
)
assert has_before_tokens() is True
assert before() == [("class:testclass", "\n")]
assert first_input_line() == [("class:testclass", "a"), ("class:testclass", "b")]
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