PYTEST:在test_xyz.py中运行所有测试，多次使用不同的设置运行.本质上是对整个测试套件进行参数

Question

我有一堆由test_xyz.py中的类组织的测试用例

我必须通过连接到远程服务器的连接来运行这些测试(每个测试用例将在上述连接上进行交易(。

我必须多次重复相同的测试(每次使用不同的连接凭据(。目前，我每次都手动更改凭据并重新进行测试。

我可以将存储在字典中的凭据。但是，如何自动化测试以一次又一次地迭代字典中存储的凭据？

根据我阅读的内容，固定装置可能会有所帮助吗？但是我不确定。

任何建议都赞赏。预先感谢。

---

test_xyz.py示例

conn = remote_conn(uname, pwd)
class Test_123:
    """Test Class"""
    
    @pytest.mark.parametrize(...)
    def test_1(self):
        assert conn.do_this()
    @pytest.mark.parametrize(...)    
    def test_2(self):
        assert conn.do_that()

Answer 1

尝试对固定装置进行参数。我建议为您的RemoteConnection创建固定装置，然后将其传递给测试。这是您可以做到的。

import pytest
class RemoteConnection:
    def __init__(self, u, p):
        self.u = u
        self.p = p
        # print "{}-{}".format(u, p)
    def close(self):
        # print "closed"
        pass
    def do_this(self, a):
        # print "do_this {}".format(a)
        return True
    def do_that(self, a):
        # print "do that {}".format(a)
        return True
credentials = [("uname1", "pwd1"), ("uname2", "pwd3"), ("uname3", "pwd3")]
@pytest.fixture(scope="class", params=credentials)
def conn(request):
    _credentials = request.param
    con = RemoteConnection(*_credentials)
    def fin():
        con.close()
    request.addfinalizer(fin)
    return con

class Test_123:
    """Test Class"""
    @pytest.mark.parametrize("a", [1, 2])
    def test_1(self, a, conn):
        assert conn.do_this(a)
    @pytest.mark.parametrize("a", [1, 2])
    def test_2(self, a, conn):
        assert conn.do_that(a)

和

的样品输出

plugins: xdist-1.11, profiling-1.2.6, cov-1.6
collecting ... collected 12 items
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_1[conn0-1] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_1[conn0-2] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_2[conn0-1] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_2[conn0-2] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_1[conn1-1] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_1[conn1-2] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_2[conn1-1] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_2[conn1-2] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_1[conn2-1] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_1[conn2-2] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_2[conn2-1] PASSED
../../../../../../Library/Preferences/PyCharm2017.1/scratches/scratch_8.py::Test_123::test_2[conn2-2] PASSED
================= 12 passed, 2 pytest-warnings in 0.08 seconds =================
Process finished with exit code 0