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    Gaia UI Tests Write Tests

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    有任何意見都可以寄到 gaia-ui-automation@mozilla.org。

    Writing Tests

    Tests Guidelines

        Your contribution is a big step to us! You may reference this page. I will brief out something here since that page is having some similiar topics as this MDN document.

        You can find related programming guide for marionette. This shows the basic layout and how you would write a test on gaia-ui-tests. Also, you will find we strictly go accord to PEP8 style except the 80 characters, E501. But, we do want to keep it within 100 charaters or so. If you are using Ubuntu, you can install a basic check program for PEP8 by doing:

    sudo apt-get install pep8
    

        and, then you can check your program style by doing this command:

    pep8 --ignore=E501 <your test file location and name>

        After you finished writing the test(s), you can then send a pull request from your branch to the branch in Mozilla that you want to contribute to! We also sometime open issues in github of Mozilla gaia-ui-tests to dicuss in advance. In that case, we can understand if our contribution was finished, if there are better suggestion, and if this contribution worth a million!

    Test Examples

    # This Source Code Form is subject to the terms of the Mozilla Public
    # License, v. 2.0. If a copy of the MPL was not distributed with this
    # file, You can obtain one at http://mozilla.org/MPL/2.0/.
    
    from gaiatest import GaiaTestCase
    
    class TestTemplate(GaiaTestCase):
    
        def setUp(self):
            # you should do something here to set up the environment
            GaiaTestCase.setUp(self)
    
        def test_template_1(self):
            # your first test regarding for this category of test
            ''' (description of where this test case is from, you may put a MozTrap link here)'''
    
        def test_template_2(self):
            # your second test regarding for this category of test
            ''' (description of where this test case is from, you may put a MozTrap link here)'''
    
        def tearDown(self):
            # you should do something here to clean the environment
            GaiaTestCase.tearDown(self)
    
    

    Functions Reference

        At this point of time, we change codes dramatically everyday. We will try to come out a real gaia-ui-test mthods overview soon. But, before that comes into reality, you may take marionette methods page for reference. Furthermore, please do notice that marionette methods page has some out-of-date stuffs, too. Please kindly help us to correct them if possible.

        Another few good reference is to dig into the code to know the common libraries we are using in gaia UI tests. I suggests that you can start with gaia_test.py. Moreover, you can look into gaia_data_layer.js and gaia_apps.js. Also, all the files under apps/ folder are other good-to-know stuffs.

    TODO: Gaia-UI-Tests functions/methods/attributes reference

    Debugging

        Everytime when you have no idea to start with in Gaia-UI-Tests, you can write so and run it.

    # This Source Code Form is subject to the terms of the Mozilla Public
    # License, v. 2.0. If a copy of the MPL was not distributed with this
    # file, You can obtain one at http://mozilla.org/MPL/2.0/.
    
    from gaiatest import GaiaTestCase
    
    class TestDebug(GaiaTestCase):
    
        def setUp(self):
            GaiaTestCase.setUp(self)
    
        def test_debug(self):
            import pdb; pdb.set_trace()
    
        def tearDown(self):
            GaiaTestCase.tearDown(self)
    

        You will find yourself in a console after running this. You can send single line code and it would return the result and control the device/emulator immediately. However, please do understand there are some variable restriction in this case. There are some reserved words in pdb that you can't use. Here is the reference of pdb from official Python website.

        When you tried to debug in your program, you may just put import pdb; pdb.set_trace() before the line it crashed to help you better debug it.

        Also, you can read the gaia(html) from B2G project to better helping you with realizing the code. But, here is another way to get the realtime code. You may send import re; import codecs; f = codecs.open("temp","w","utf8"); f.write(re.sub(r'<(script).*?</\1>(?s)', r'', self.marionette.page_source)) in pdb, and it should write the current code without localization stuffs to a file named "temp".

    CSS and XPath Locators

         When we are trying to get locators of web elements, the most simple ways to do so is by linktext, id, or name. However, we do need to get webelement that sit in complex structure of HTML without linktext, id, or name. There are two main ways to find web elements in this case - CSS selector or XPath selector.

        You can find basic XPath reference in w3schools, CSS selectors reference in w3schools, or CSS selectors reference in W3C standard. I don't want to get into this too deep. You will find it easy to pick up knowledge from others' test scripts.
     

    Note: CSS selector is preferrable over XPath selector, the reason is css selectors is usually faster. (external link for explanation)
    You can also find this cheatsheet easy to use or keep you away from chaos.

     

    Manifest files

        You will find manifest.ini files under all folders inside tests folder. It's the manifest files we are talking about. Inside the manifest files, we can find that it might indicate the required status when running tests under this folder, it might include test files needed, and it might include the other manifest files to be read.

    Here is a list of the types used, and when to use them:

    • b2g - this means the test is a B2G (Firefox OS) test. All tests must include this type.
    • antenna - these tests require an antenna (headphones) to be connected.
    • bluetooth - requires bluetooth to be available.
    • camera - these tests require use of a camera.
    • carrier - an active SIM card with carrier connection is required.
    • lan - a local area connection (not cell data) is required by these tests (see note below).
    • offline - specifically requires no online connection.
    • online - some sort of online connection (lan or carrier) is required.
    • qemu - these tests require the Firefox OS emulator to run.
    • sdcard - a storage device must be present.
    • wifi - this means a WiFi connection is required.
    • xfail - a special type that indicates the test is expected to fail.

    Note: Please do read the Mozilla/gaia-ui-tests github readme for most up-to-date types and help us to update in this page.

     

    Document Tags and Contributors

    Contributors to this page: ypwalter, teoli
    最近更新: teoli,
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