2022.4.10 Python Pytest 实战训练营

image


data:
- - 1
  - 1
  - 2
- - -0.01
  - 0.02
  - 0.01
- - 10
  - 0.02
  - 10.02
- - 98.99
  - 99
  - 197.99
- - 99
  - 98.99
  - 197.99
- - -98.99
  - -99
  - -197.99
- - 99.01
  - 0
  - 参数大小超出范围

新加data目录 下面有data.yaml

import pytest
import yaml

from pythoncode.calculator import Calculator

@pytest.fixture(scope='function',autouse=True)
def calculate():
    print('开始计算')
    yield
    print('结束计算')

class TestCalculator:
    def setup(self):
        pass

    def teardown(self):
        pass

    def teardown_class(self):
        print('结束测试')

    @pytest.mark.p0
    @pytest.mark.parametrize('x,y,excepted',yaml.safe_load(open('../data/data.yaml',encoding='utf-8'))['data'])
    def test_add0(self,x,y,excepted):
        # 测试相加方法
        calc = Calculator()
        result = calc.add(x,y)
        print(result)
        # 实际结果 对比 预期结果
        assert result ==excepted
import pytest

# 测试模块
from pythoncode.calculator import Calculator


class TestCalculator:

    @pytest.fixture(autouse=True)
    def start_count(self):
        print("【开始计算】")
        yield
        print("【结束计算】")

    @pytest.fixture(scope="class", autouse=True)
    def end_testing(self):
        yield
        print("【结束测试】")

    test_cases = [(1, 1, 2), (-0.01, 0.02, 0.01), (10, 0.02, 10.02)]

    @pytest.mark.p0
    @pytest.mark.parametrize("a, b, sum", test_cases)
    def test_add0(self, a, b, sum):
        # 测试相加方法
        calc = Calculator()
        result = calc.add(a, b)
        print(result)
        # 实际结果 对比 预期结果
        assert result == sum

from day1_20220410_my.pythoncode.calculator import Calculator
import pytest

def teardown_module():
print("===== 结束测试 =====")

class TestCalculator:

def setup(self):
    print("========== 开始计算 ==========")

def teardown(self):
    print("========== 结束计算 ==========")

@pytest.mark.p0
@pytest.mark.parametrize("a,b,c", [(1, 1, 2), (-0.01, 0.02, 0.01), (10, 0.02, 10.02)])
def test_add0(self,a,b,c):
    # 测试相加方法
    calc = Calculator()  #实例化
    result = calc.add(a,b)
    print(f"本次相加结果为{result}")
    # 实际结果 比对 预期结果
    assert result == c

@pytest.mark.p1
@pytest.mark.parametrize("a,b,c", [(99, 98.99, 197.99), (-98.99, -99, -197.99), (-99, -98.99, -197.99),
                                   (99.01,0,"")])
def test_add1(self, a, b, c):
    # 测试相加方法
    calc = Calculator()  # 实例化
    result = calc.add(a, b)
    print(f"本次相加结果为{result}")
    # 实际结果 比对 预期结果
    assert result == c
  1. 测试代码有些冗余
  2. Calculator()放在setup

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"""
__author__ = '霍格沃兹测试开发学社'
__desc__ = '更多测试开发技术探讨,请访问:https://ceshiren.com/t/topic/15860'
"""

# 测试模块
import pytest

from pythoncode.calculator import Calculator


class TestCalculator:
    def setup_class(self):
        self.calc = Calculator()

    def teardown_class(self):
        print("【结束测试】")

    def setup(self):
        print("【开始计算】")

    def tear_down(self):
        print("【结束计算】")

    @pytest.mark.parametrize("a, b, rez", [(1, 1, 2), (-0.01, 0.02, 0.01), (10, 0.02, 10.02)])
    @pytest.mark.P0
    def test_add0(self, a, b, rez):
        # 实际结果 对比 预期结果
        assert rez == self.calc.add(a, b)

    @pytest.mark.parametrize("a, b", [(99.01, 0), (-99.01, -1), (2, 99.01), (1, -99.01)])
    @pytest.mark.P1
    def test_add1(self, a, b):
        # 实际结果 对比 预期结果
        print(self.calc.add(a, b))
        assert self.calc.add(a, b) == "参数大小超出范围"

    @pytest.mark.parametrize("a, b",
                             [("文", 9.3), (4, "字"), ("nu", 0.2), (30, "t"), ("*&", 0.2), (21.45, "@"), ("", 20.93),
                              (-3, ""), (" ", 3.14), (-90, " ")])
    @pytest.mark.P1
    def test_add2(self, a, b):
        with pytest.raises(TypeError) as e:
            # 实际结果 对比 预期结果
            self.calc.add(a, b)
        assert e.type is TypeError
import pytest
# 测试模块
from pythoncode.calculator import Calculator


class TestCalculator:
    def setup(self):
        print("-------------------计算开始----------------------")

    def teardown(self):
        print("-------------------计算结束----------------------")

    base_biz_content_1 = [
        ([1, 1], 2),
        ([-0.01, 0.02], 0.01),
        ([10, 0.02], 10.02)
    ]
    base_biz_content_2 = [
        ([98.99, 99], 197.99),
        ([99, 98.99], 197.99),
        ([-98.99, -99], -197.99),
        ([-99, -98.99], -197.99),
        ([99.01, 0], "参数大小超出范围"),
        ([-99.01, 0], "参数大小超出范围"),
        ([2, 99.01], "参数大小超出范围"),
        ([1, -99.01], "参数大小超出范围")
    ]
    @pytest.mark.p0
    @pytest.mark.parametrize('arg,expeted', base_biz_content_1)
    def test_add0(self,arg,expeted):
        # 测试相加方法
        calc = Calculator()
        result = calc.add(arg[0], arg[1])
        # 实际结果 对比 预期结果
        assert result == expeted

    @pytest.mark.p1
    @pytest.mark.parametrize('arg,expeted', base_biz_content_2)
    def test_add1(self,arg,expeted):
        # 测试相加方法
        calc = Calculator()
        result = calc.add(arg[0], arg[1])
        # 实际结果 对比 预期结果
        assert result == expeted

测试模块

from pythoncode.calculator import Calculator
import pytest

class TestCalculator:

def setup(self):
    self.calc = Calculator()
    print("开始计算")

def teardown(self):
    print("计算结束")

@pytest.mark.run(order=1)
@pytest.mark.parametrize('a,b,c',[(1, 1, 2),(1.1, -2.2, -1.1),(-1.1,2.2,1.1),(99,-99.01,-0.01),(-99,99.01,0.01)])
def test_add_ture(self, a, b, c):
    self.calc.add(a,b)
    assert Calculator().add(a,b) == c

@pytest.mark.run(order=2)
@pytest.mark.parametrize('a,b',[(99.01,0),(-99.01,-1),('abc',2),(22,'今天')])
def test_add_false(self, a, b):
    self.calc.add(a, b)
    assert Calculator().add(a,b) == "参数大小超出范围"
from pythoncode.calculator import Calculator
import pytest

success_data = [{"num1": 1, "num2": 1, "res": 2},
                {"num1": -0.01, "num2": 0.02, "res": 0.01},
                {"num1": 10, "num2": 0.02, "res": 10.02}
                ]
data2= [
    {"num1": 98.99, "num2": 99, "res": 197.99},
    {"num1": 99, "num2": 98.99, "res": 197.99},
    {"num1": -98.99, "num2": -99, "res": -197.99},
    {"num1": -99, "num2": -98.99, "res": -197.99},
    {"num1": 99.01, "num2": 0, "res": "参数大小超出范围"},
    {"num1": -99.01, "num2": -1, "res": "参数大小超出范围"},
    {"num1": 2, "num2": 99.01, "res": "参数大小超出范围"},
    {"num1": 1, "num2": -99.01, "res": "参数大小超出范围"},
    {"num1": "文", "num2": 9.3, "res": "参数大小超出范围"},
    {"num1": 4, "num2": "字", "res": "参数大小超出范围"},
    {"num1": 2, "num2": 99.01, "res": "参数大小超出范围"},
    {"num1": 1, "num2": -99.01, "res": "参数大小超出范围"}
]
data3 = [
    {"num1": "", "num2": 20.93, "res": "参数大小超出范围"},
    {"num1": -3, "num2": "", "res": "参数大小超出范围"}
]

class TestCalculator:
    def setup(self):
        # 测试相加方法
        self.calc = Calculator()
        print("开始计算")

    def teardown(self):
        print("结束计算")


    def teardown_class(self):
        print("结束测试")

    @pytest.mark.p0
    @pytest.mark.parametrize("data", success_data)
    def test_add0(self, data):
        result = self.calc.add(data["num1"], data["num2"])
        assert result == data["res"]

    @pytest.mark.p1
    @pytest.mark.parametrize("data", data2)
    def test_add1(self, data):
        result = self.calc.add(data["num1"], data["num2"])
        assert result == data["res"]

    @pytest.mark.p2
    @pytest.mark.parametrize("data", data3)
    def test_add2(self, data):
        result = self.calc.add(data["num1"], data["num2"])
        assert result == data["res"]
from pythonCode.calculator import Calculator
import pytest


class TestCalculator:

    def teardown_class(self):
        print("结束测试")

    def setup_method(self):
        print("开始计算")

    def teardown_method(self):
        print("结束计算")

    @pytest.mark.parametrize("first, second, excepted", [
        pytest.param(1, 1, 2, marks=pytest.mark.p0),
        pytest.param(-0.01, 0.02, 0.01, marks=pytest.mark.p0),
        pytest.param(10, 0.02, 10.02, marks=pytest.mark.p0),
        pytest.param(98.99, 99, 197.99, marks=pytest.mark.p1),
        pytest.param(99, 98.99, 197.99, marks=pytest.mark.p1),
        pytest.param(-98.99, -99, -197.99, marks=pytest.mark.p1),
        pytest.param(-99, -98.99, -197.99, marks=pytest.mark.p1),
        pytest.param(99.01, 0, "参数大小超出范围", marks=pytest.mark.p1),
    ], ids=["整数+整数", "负浮点数+正浮点数", "正整数+浮点数", "浮点数+整数", "整数+浮点数", "负浮点数+负整数", "负整数+负浮点数", "参数超出范围"])
    def test_add(self, first, second, excepted):
        calc = Calculator()
        assert calc.add(first, second) == excepted

在此处键入或粘贴代码

练习1:
被测试代码为:
class Calculator:
def add(self, a, b):

    if a > 99 or a < -99 or b > 99 or b < -99:
        print("请输入范围为【-99, 99】的整数或浮点数")
        return "参数大小超出范围"

    return a + b

def div(self, a, b):
    if a > 99 or a < -99 or b > 99 or b < -99:
        print("请输入范围为【-99, 99】的整数或浮点数")
        return "参数大小超出范围"

    return a / b

用例设计为:
from pythoncode.calculator import Calculator
import pytest

class TestCalculator:
def setup_class(self):
print(‘创建实例化Calculator对象’)
self.calc = Calculator()

def setup(self):
    print('开始计算')

def teardown(self):
    print('结束计算')

def teardown_class(self):
    print('测试结束')
#冒烟测试用例
@pytest.mark.parametrize('a,b,expected',[[1,1,2],[-0.01,0.02,0.01],[10,0.02,10.02]],ids=['整数相加','浮点数相加','整数和浮点数相加'])
@pytest.mark.p0
def test_add0(self,a,b,expected):

    result = self.calc.add(a, b)
    print(result)
    assert result == expected

#有效边界值和无效边界值
@pytest.mark.parametrize('a,b,expected', [[98.99, 99, 197.99], [99, 98.99, 197.99], [-98.99,-99,-197.99],[-99,-98.99,-197.99],[99.01,0,'参数大小超出范围'],[-99.01,-1,'参数大小超出范围'],[2,99.01,'参数大小超出范围'],[1,-99.01,'参数大小超出范围']],

                         ids=['有效边界值1','有效边界值2','有效边界值3','有效边界值4','参数大小超出范围1','参数大小超出范围2','参数大小超出范围3','参数大小超出范围4'])
@pytest.mark.p1
def test_add1(self,a,b,expected):
    result=self.calc.add(a,b)
    print(result)
    assert result==expected



# def test_add2(self):
#     try:
#         result=self.calc.add('中',9.3)
#     except TypeError as e:
#         print('异常信息:')
#         print(e)

# def test_add2(self):
#         with pytest.raises(TypeError) as e:
#             result = self.calc.add('中', 9.3)
#         print('异常信息:')
#         print(e)     #为什么需要对齐with才可以打印呢?---放在with里面是执行try里面的代码,print(e)应该是在捕获了之后才能打印

#异常情况的处理
@pytest.mark.parametrize('a,b,excepted',[['中',9.3,TypeError],['9.3','文',TypeError]],ids=['中文1','中文2'])
@pytest.mark.p2
def test_add2(self,a,b,excepted):
        with pytest.raises(excepted) as e:
            result = self.calc.add(a, b)
            assert result==excepted

-- coding: utf-8 --

@Time : 2022-04-11 10:45

@File : test_aa.py

import yaml
import pytest

from pythoncode.Calculator import Calculator

def get_data():
‘’‘获取yaml中的测试数据’’’
with open(’./data.yaml’,‘r’,encoding=‘utf-8’) as f:
datas = yaml.safe_load(f)
print(datas)
return datas

class TestCalculator():
def setup(self):
print(“开始计算”)
def teardown(self):
print(“结束计算”)
def setup_class(self):
self.call = Calculator()
def teardown_class(self):
print(“结束测试”)
@pytest.mark.P0
@pytest.mark.parametrize(‘a,b,expect’,get_data().get(“P0”).get(“data”),
ids=get_data().get(“P0”).get(“ids”))
def test_add00(self,a,b,expect):
res = self.call.add(a,b)
assert res == expect
@pytest.mark.P1
@pytest.mark.parametrize(‘a,b,expect’,get_data().get(“P1”).get(“data”),ids=get_data().get(“P1”).get(“ids”))
def test_add01(self,a,b,expect):
res = self.call.add(a,b)
assert res == expect
@pytest.mark.P2
@pytest.mark.parametrize(‘a,b,expect’,get_data().get(“P2”).get(“data”),ids=get_data().get(“P2”).get(“ids”))
def test_add02(self,a,b,expect):
with pytest.raises(eval(expect)) as e:
res = self.call.add(a,b)
assert res == expect

练习2:
from pythoncode.calculator import Calculator
import pytest
import yaml
def get_datas(level):
with open(’./datas.yml’,encoding=‘utf-8’) as f:
result=yaml.safe_load(f)
print(result)
add_datas=result.get(‘add’).get(level).get(‘datas’)
add_ids = result.get(‘add’).get(level).get(‘ids’)
print(f"{level}级别的datas为: {add_datas}")
print(f"{level}级别的ids为: {add_ids}")
return[add_datas,add_ids]

class TestCalculator:
add_p0_datas=get_datas(‘P0’)[0]
add_p0_ids=get_datas(‘P0’)[1]
print(add_p0_datas)
add_p1_datas = get_datas(‘P1’)[0]
add_p1_ids = get_datas(‘P1’)[1]
add_p2_datas = get_datas(‘P2’)[0]
add_p2_ids = get_datas(‘P2’)[1]
def setup_class(self):
print(‘创建实例化Calculator对象’)
self.calc = Calculator()

def setup(self):
    print('开始计算')

def teardown(self):
    print('结束计算')

def teardown_class(self):
    print('测试结束')
#冒烟测试用例
@pytest.mark.parametrize('a,b,expected',add_p0_datas,ids=add_p0_ids)
@pytest.mark.p0
def test_add0(self,a,b,expected):

    result = self.calc.add(a, b)
    print(result)
    assert result == expected

#有效边界值和无效边界值
@pytest.mark.parametrize('a,b,expected', add_p1_datas,
                         ids=add_p1_ids)
@pytest.mark.p1
def test_add1(self,a,b,expected):
    result=self.calc.add(a,b)
    print(result)
    assert result==expected

#异常情况的处理
@pytest.mark.parametrize('a,b,excepted',add_p2_datas,ids=add_p2_ids)
@pytest.mark.p2
def test_add2(self,a,b,excepted):
        with pytest.raises(eval(excepted)) as e:#eval让字符串变成一个表达式,完成运算,把它转成了一个类型
            result = self.calc.add(a, b)
            assert result==excepted

思路:
使用参数化来实现计算器相加功能测试
*并没有完整写完,但思路和写法类似
1.先把case分类,下面分为几类:
P0(基础相加功能case),P1-1(有效值相加),P1-2(无效值相加:超出数值范围)
2.上面每个分类对应一个test case方法,如下:
test_Ca_add_P0
test_Ca_add_P1_1
test_Ca_add_P1_2

3.每个方法里面验证方式基本一致
通过调用原calculator add方法进行测试

4.add方法需要传参两个加数,另外我们还要传期望结果,所以总共传三个参数x,y,except

5.每个测试方法添加修饰器来进行传参@pytest.mark.parametrize
6.编写yaml文件,把测试数据写入
7.编写get_data方法来获取对应参数(test_func.py),注意这里我把对应等级priority作为参数传入这个方法

test_cal.py

import allure
import pytest
import yaml


from code.caculator import Calculator
from test import test_func

@allure.feature("计算器功能")
class TestCalculator:
    def setup_class(self):
        self.cal = Calculator()
    def setup(self):
        print("开始计算")
    def teardown(self):
        print("结束计算")
    # @pytest.skip
    @pytest.mark.P0
    # @pytest.mark.run(order=3)
    @allure.story("相加基本用例")
    @pytest.mark.parametrize("x,y,expected",test_func.get_data("P0")[0],
                             ids=test_func.get_data("P0")[1])
    def test_Ca_add_P0(self,x,y,expected):
        result = self.cal.add(x,y)
        assert result == expected

    @pytest.mark.P1
    # @pytest.mark.run(order = 1)
    @allure.story("有效值相加")
    @pytest.mark.parametrize("x,y,expected",test_func.get_data("P1-1")[0],
                             ids=test_func.get_data("P1-1")[1])
    def test_Ca_add_P1_1(self,x,y,expected):
        result = self.cal.add(x,y)
        assert result == expected


    @pytest.mark.P1
    # @pytest.mark.run(order=2)
    @allure.story("无效边界值相加")
    @pytest.mark.parametrize("x,y,expected",test_func.get_data("P1-2")[0],
                             ids=test_func.get_data("P1-2")[1])
    def test_Ca_add_P1_2(self,x,y,expected):
        try:
            result = self.cal.add(x,y)
            assert result == expected
        except TypeError as e:
            print(f"输入有问题,输入值为{x,y},抛出异常:{e}")

test_data.yml

add:
  P0:
    Ca_add_001:
      - 1
      - 1
      - 2
    Ca_add_002:
      - -0.01
      - 0.02
      - 0.01

test_func.py

def get_data(priority="P0"):
    data = yaml.safe_load(open("../data/test_data.yml",encoding = 'utf-8'))
    data = data.get("add")
    result = []
    # print(type(data))
    # print(f"data is {data}")
    # print(type(data["P0"]),data["P0"])
    for item in data[priority].values():
        result.append(item)
    print(result)
    return [result,data[priority].keys()]