Fix for issue #3019 (blank password/obscure field)

[srenon]

Bug - Blank value for field type password/obscure when switch store view in store config

[srenon]

The testing script will need to be updated since is expecting hasBackendModel() to be called 1 time.

1. Magento\Config\Test\Unit\Block\System\Config\FormTest::testInitFields with data set Can you commit to repository a folder dev/tests/static ? #1 (array(), 'Config Value', 'some/config/path', true, 'Config Value')
   Expectation failed for method name is equal to string:hasBackendModel when invoked 1 time(s).
   Method was expected to be called 1 times, actually called 0 times.

[mazhalai]

Related internal ticket MAGETWO-48100

[mazhalai]

@srenon Please fix uint tests and sync with latest develop

[mazhalai]

MAGETWO-48100

[mazhalai]

@srenon thank you for your contribution, your PR has been merged.

[mimarcel]

Hello @srenon ,

Please note that PR #6231 was created to revert current PR due to another issue. Since screenshot in issue #3019 shows a problem with a field in Gmail/Google Apps SMPT Pro, I assume this is a 3rd party extension which should fix their backend model to correctly handle the values.

[srenon]

@mimarcel .... Yes the screen shot was from a third party extension but this also affect core module that uses "password/obscure". This should be a cause by the the same issue #2984

To replicate this issue all you need to do is to create a system.xml with

<field id="production_secret" translate="label" type="obscure" >
           <label>Production Secret</label>
           <backend_model>Magento\Config\Model\Config\Backend\Encrypted</backend_model>
</field>

Then echo the value with echo $this->getConfigData('production_secret');

[mimarcel]

@srenon I can not replicate the issue.

Preconditions:

1. have latest M2.1 installed
2. apply fix from Fix default values not being properly loaded for ArraySerialized fields #6231

Steps

• Add system config field

                <field id="production_secret" translate="label" type="obscure" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1" >
                    <label>Production Secret</label>
                    <backend_model>Magento\Config\Model\Config\Backend\Encrypted</backend_model>
                </field>

• Set a value on admin store.
• Switch to another store.

Result:

• the password is still there, it is not blank.