Purpose: When running tests, all the tests for the installed/updated
files are done. This commit adds a 'tagged' decorator that can be used to
tag tests. Combined with a new 'test-tags' CLI option, it adds the ability
to filter which tests are executed. For example, @tagged('slow') will
add a tag 'slow' to the test. The CLI option 'test-tags="slow"' will
only run tests tagged 'slow'.
One can use prefixes to select cases with tags.
'+' or no prefix means that the tests tagged with this tag are selected
for execution. '-' prefix will exclude the tests tagged with this tag.
Exclusion takes precedence over inclusion.
Also, by default, all Odoo tests cases are tagged 'standard' and with
the technical name of the module.
This means that when selecting tests with the 'test-tags'
parameter, if '-standard' is not specified, all tests tags are
going to be executed.
When tagging tests, one can remove such automatic tag by prefixing the
tag name with '-'. E.g. @tagged('-standard') will remove the standard
tag from the test.
Another example, if one wants to test the 'sale' module alone,
even without adding any 'tagged' decorator thos tests can be selected
like that: --test-tags="sale"
Tests are selected or deselected using a TagsSelector. When instanciated,
a string is passed with comma separated tests selectors like
'+slow,-standard'. When the 'check' method is called with a test as argument,
it returns True or False if the test has to be executed or not.
This test is ran in the backend and, if we do not mark it as post
install, the dependencies of the web module are not installed.
The webclient will then errors like "View type 'kanban' is not present
in the view registry".
The test begins by opening the webclient which default view is the
kanban view of the apps. However, by running this test at the web
module installation, web_kanban is not yet installed.
Christophe Monniez