本篇来学习pytest中内置fixture中临时目录的使用
tmpdir作用范围是函数级别，创建临时文件供单个测试点调用
# -*- coding: utf-8 -*-
import os
def test_tmpdir(tmpdir):
"""内置tmpdir fixture使用"""
# 创建临时文件
a_file = tmpdir.join('a.txt')
# 写入内容
a_file.write('A')
# 创建临时目录
a_sub_dir = tmpdir.mkdir('sub')
sub_file = a_sub_dir.join('sub.txt')
sub_file.write('sub')
# 打印临时目录路径
print(f"tmpdir:{a_file}")
print(f"tmpdir:{a_sub_dir}")
assert a_file.read() == 'A'
assert sub_file.read() == 'sub'
if __name__ == '__main__':
os.system('pytest -s -v')tmpdir_factory作用范围是会话级别，主要针对创建临时目录的情况，可供多个测试点调用
# -*- coding: utf-8 -*-
import os
def test_create_file(tmpdir_factory):
p = tmpdir_factory.mktemp("demo01").join("hello.txt")
print(f"tmpdir:{p}")
p.write("content")
assert p.read() == "content"
def test_create_file2(tmpdir_factory):
p = tmpdir_factory.mktemp("demo02").join("hello.txt")
print(f"tmpdir:{p}")
p.write("content")
assert p.read() == "content"
if __name__ == '__main__':
os.system('pytest -s -v')
测试用例级别，tmpdir 和tmp_path功能是一样的，唯一区别是tmpdir返回的是py.path.local类型，而tmp_path返回的是pathlib.Path类型
# -*- coding: utf-8 -*-
import os
def test_create_file_path(tmp_path):
"""临时路径"""
d = tmp_path / "sub"
print(f"temp_dir:{d}")
d.mkdir()
p = d / "hello.txt"
str_txt = "hello world"
p.write_text(str_txt)
assert p.read_text() == str_txt
assert len(list(tmp_path.iterdir())) == 1
if __name__ == '__main__':
os.system('pytest -s -v')会话级别
# -*- coding: utf-8 -*-
import os
def test_create_file_path_factory(tmp_path_factory):
"""临时路径 会话级"""
d = tmp_path_factory.mktemp("demo01") / "hello.txt"
print(f"temp_dir:{d}")
str_txt = "hello world"
d.write_text(str_txt)
assert d.read_text() == str_txt
def test_create_file2_path_factory(tmp_path_factory):
d = tmp_path_factory.mktemp("demo02") / "hello.txt"
print(f"temp_dir:{d}")
str_txt = "hello world"
d.write_text(str_txt)
assert d.read_text() == str_txt
if __name__ == '__main__':
os.system('pytest -s -v')
–basetemp = 临时路径
# -*- coding: utf-8 -*-
import os
def test_create_file_path(tmp_path):
"""临时路径"""
d = tmp_path / "sub"
print(f"temp_dir:{d}")
d.mkdir()
p = d / "hello.txt"
str_txt = "hello world"
p.write_text(str_txt)
assert p.read_text() == str_txt
assert len(list(tmp_path.iterdir())) == 1
if __name__ == '__main__':
# 指定临时目录,确认为空目录 否则会被清空
os.system('pytest -s -v --basetemp=./test_tmp')
