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import pytest
from prompt_toolkit.buffer import Buffer
from prompt_toolkit.history import InMemoryHistory
@pytest.fixture
def _history():
"Prefilled history."
history = InMemoryHistory()
history.append_string("alpha beta gamma delta")
history.append_string("one two three four")
return history
# Test yank_last_arg.
def test_empty_history():
buf = Buffer()
buf.yank_last_arg()
assert buf.document.current_line == ""
def test_simple_search(_history):
buff = Buffer(history=_history)
buff.yank_last_arg()
assert buff.document.current_line == "four"
def test_simple_search_with_quotes(_history):
_history.append_string("""one two "three 'x' four"\n""")
buff = Buffer(history=_history)
buff.yank_last_arg()
assert buff.document.current_line == '''"three 'x' four"'''
def test_simple_search_with_arg(_history):
buff = Buffer(history=_history)
buff.yank_last_arg(n=2)
assert buff.document.current_line == "three"
def test_simple_search_with_arg_out_of_bounds(_history):
buff = Buffer(history=_history)
buff.yank_last_arg(n=8)
assert buff.document.current_line == ""
def test_repeated_search(_history):
buff = Buffer(history=_history)
buff.yank_last_arg()
buff.yank_last_arg()
assert buff.document.current_line == "delta"
def test_repeated_search_with_wraparound(_history):
buff = Buffer(history=_history)
buff.yank_last_arg()
buff.yank_last_arg()
buff.yank_last_arg()
assert buff.document.current_line == "four"
# Test yank_last_arg.
def test_yank_nth_arg(_history):
buff = Buffer(history=_history)
buff.yank_nth_arg()
assert buff.document.current_line == "two"
def test_repeated_yank_nth_arg(_history):
buff = Buffer(history=_history)
buff.yank_nth_arg()
buff.yank_nth_arg()
assert buff.document.current_line == "beta"
def test_yank_nth_arg_with_arg(_history):
buff = Buffer(history=_history)
buff.yank_nth_arg(n=2)
assert buff.document.current_line == "three"
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