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from __future__ import annotations
from prompt_toolkit.shortcuts import print_container
from prompt_toolkit.shortcuts.prompt import _split_multiline_prompt
from prompt_toolkit.widgets import Frame, TextArea
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")]
def test_print_container(tmpdir):
# Call `print_container`, render to a dummy file.
f = tmpdir.join("output")
with open(f, "w") as fd:
print_container(Frame(TextArea(text="Hello world!\n"), title="Title"), file=fd)
# Verify rendered output.
with open(f) as fd:
text = fd.read()
assert "Hello world" in text
assert "Title" in text
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