test_completion.py•2.13 kB
#!/usr/bin/env python3
"""
测试readline补全行为
"""
try:
import readline
except ImportError:
# Windows 系统使用 pyreadline3
try:
import pyreadline3 as readline
except ImportError:
# 如果都没有 readline 功能，创建一个兼容层
class MockReadline:
def get_line_buffer(self): return ""
def redisplay(self): pass
def set_completer(self, completer): pass
def set_completer_delims(self, delims): pass
def parse_and_bind(self, binding): pass
def read_history_file(self, filename): pass
def write_history_file(self, filename): pass
readline = MockReadline()
class TestCompleter:
def __init__(self):
self.commands = ['test', 'call', 'breakpoint', 'help', 'quit']
def complete(self, text, state):
if state == 0:
line = readline.get_line_buffer()
print(f"DEBUG: line='{line}', text='{text}'")
self.matches = [cmd for cmd in self.commands if cmd.startswith(text)]
print(f"DEBUG: matches={self.matches}")
try:
result = self.matches[state]
print(f"DEBUG: returning '{result}' for state {state}")
return result
except IndexError:
return None
def test_completion():
"""测试补全行为"""
completer = TestCompleter()
readline.set_completer(completer.complete)
readline.set_completer_delims('\t\n') # 只用tab和换行作为分隔符
readline.parse_and_bind('tab: complete')
print("测试补全功能:")
print("输入 't' 然后按 Tab，应该补全为 'test'")
print("输入 'c' 然后按 Tab，应该补全为 'call'")
print("输入 'q' 然后按 Tab，应该补全为 'quit'")
print("按 Ctrl+C 退出测试")
try:
while True:
try:
line = input("test> ")
print(f"你输入了: '{line}'")
except EOFError:
break
except KeyboardInterrupt:
print("\n测试结束")
if __name__ == "__main__":
test_completion()