测试两个函数变量指向同一个函数？

Question

如何测试两个函数变量指向同一个函数？

test = lm
test2 = lm

test == lm     # error: comparison (1) is possible only for atomic and list types
test == test2  # error: comparison (1) is possible only for atomic and list types

Answer 1

尝试：

identical(test, lm)
identical(test, test2)