Lila25milaJan. 29, 2019, 1:53 a.m.

How to use Coverage in Django

When you are developing a large project, it is possible to accidentally forget some parts of the code that need to be tested. is a python tool to help you with this.


Use pip or easy_install as you like

pip install coverage 
Starting and uninstalling

To run in a Django project, use the command:

overage run --source='.' test the-app-you-want-to-test

This command will fill in ".coverage" which is located in COVERAGE_FILE and then you can see the results or report. If you need to delete the received data, use the command:

coverage erase
For one file

If you only want to test Python code, then you need to do:

coverage run arg1 arg2 arg3

There are several additional options that you can look at link .
You can learn about templates in the plugins section .

View result

If you want to display results on the command line:

coverage report

For clearer and more convenient reports:

coverage html

To know exactly what part of your code is covered by tests, use the following command:

coverage annotate -d directory-where-to-put-annotated-files

The program will generate the same source code file with additional syntax:

- A line with ">" means that it has been executed.

- A line starting with "!" means that it was not executed.

- A line starting with "-" means that the line has been excluded from the coverage statistics.

Good level of coverage

Good coverage is usually 90%. However, if the result is 100%, this may be a bad signal, since it may be a matter of coverage, and not the quality of the tests.

A few tips:

- Be careful with the quality of your tests.

- Don't slow down your developer speeds for the sake of coverage.

- Use coverage to find unverified code and decide if it deserves coverage.

Exclude code

Sometimes we need to exclude some code that doesn't need coverage. There are several options:

- Specifying files to exclude and skip in .coveragerc.

- Writing in one line of the comment block.

 # pragma: no cover

For example, if you want to exclude generated code from coverage because it must be supported by the generation tool:

def generated_code():   # pragma: no cover

More info at documentation.

We recommend hosting TIMEWEB
We recommend hosting TIMEWEB
Stable hosting, on which the social network EVILEG is located. For projects on Django we recommend VDS hosting.


Only authorized users can post comments.
Please, Log in or Sign up

Let me recommend you a great European Fornex hosting.

Fornex has proven itself to be a stable host over the years.

For Django projects I recommend VPS hosting

Following the link you will receive a 5% discount on shared hosting services, dedicated servers, VPS and VPN

View Hosting

C++ - Test 001. The first program and data types

  • Result:66points,
  • Rating points-1
  • korsar
  • Nov. 23, 2022, 8:57 a.m.

C++ - Test 005. Structures and Classes

  • Result:50points,
  • Rating points-4

C++ - Тест 003. Условия и циклы

  • Result:78points,
  • Rating points2
Last comments

GameDev on Qt - Tutorial 5. The explosion of bullets using sprite images

Если вдруг кто-то прочитает.... Скачал проект, скомпилил, запустил. Всё красиво и объектно ориентировано, но вот FPS дико страдает, когда появляется 10+ врагов. Может есть какие-то надстрой…
  • juvf
  • Nov. 25, 2022, 12:14 a.m.

Qt/C++ - Lesson 051. QMediaPlayer – simple audio player

Добрый день. Подскажите, как можно перехватить в Qt или Qml уровень воспроизводимого звука? Т.е. требуется сделать виртуальный винтажный индикатор (стрелочный или светодиодный), который бы …
  • juvf
  • Nov. 3, 2022, 3:20 a.m.

QML - Lesson 007. ListView. Dynamic creation and deletion of elements

Добрый день. Очень полезная статья. Спасибо. Вопрос такой: 1) нужно "взять" кнопку 2 пальцем (прикаснулись пальцем к кнопке 2, держим, через 2-3 кнопка оторвалась от ListView) и пере…

PyQt5 - Lesson 007. Works with QML QtQuick (Signals and slots)

А можно ли из QML сделать привязку свойства к свойству пайтоновского объекта? Ну, т.е. , например, у нашего объекта Calculator обхвялем свойства sumresult и subresult c с декоратором @pyqtProp…

Python Image Recognition with TensorFlow and Keras

А что собственно выводит программа, как вывести то что она смогла распознать?
Now discuss on the forum

Sorting the added QML elements in the ListModel

I am writing an alarm clock in QML, I am required to sort the alarms in ascending order (depending on the date or time (if there are several alarms on the same day). I've done the sorting …

Как добавить в скрипт размер каждого файла в Мб ?

IDLE (Python 3.10 64-bit) Win 10 Есть такой скрипт: Поиск перечня файлов в папке и запись списка: import ospath = 'E:\Мой Python\__Видеокурсы Python'rez = sorted(os.listdir(pa…
  • nkly
  • Oct. 18, 2022, 9:14 a.m.

Как сохранить данные древовидной модели на основе QStandardItemModel в файл

Вы меня неправильно поняли. Допустим я собираю кулинарные рецепты и один из них - рецепт супа Харчо. Структура файла данных такова: { node:Рецепт супа Харчо parent:Вкусные блюда, …

Вопрос по Qt Creator

Добрый день. Не знаю, подобную проблему я не решал.

Задать другой класс div-у

Добрый день. Попробуйте использовать Selenium. Это библиотека есть в виде Python модуля и она позволяет загружать страницу и манипулировать html элементами. Как я понимаю, в ней можно…
© EVILEG 2015-2022
Recommend hosting TIMEWEB