MQE-2008: Filter test generation and execution by severity

docs/commands/mftf.md

@@ -159,6 +159,7 @@ vendor/bin/mftf generate:tests [option] [<test name>] [<test name>] [--remove]
 | Option | Description|
 | ---| --- |
 | `--config=[<default> or <singleRun> or <parallel>]` | Creates a single manifest file with a list of all tests. The default location is `tests/functional/Magento/FunctionalTest/_generated/testManifest.txt`.<br/> You can split the list into multiple groups using `--config=parallel`; the groups will be generated in `_generated/groups/` like `_generated/groups/group1.txt, group2.txt, ...`.<br/> Available values: `default` (default), `singleRun`(same as `default`), and `parallel`.<br/> Example: `generate:tests --config=parallel`. |
+| `--filter` | Option to filter tests to be generated.<br/>Template: '<filterName>:<filterValue>'.<br/>Existing filter types: severity.<br/>Existing severity values: BLOCKER, CRITICAL, MAJOR, AVERAGE, MINOR.<br/>Example: --filter=severity:CRITICAL|
 | `--force` | Forces test generation, regardless of the module merge order defined in the Magento instance. Example: `generate:tests --force`. |
 | `-i,--time` | Set time in minutes to determine the group size when `--config=parallel` is used. The __default value__ is `10`. Example: `generate:tests --config=parallel --time=15`|
 | `--tests` | Defines the test configuration as a JSON string.|

src/Magento/FunctionalTestingFramework/Test/Handlers/TestObjectHandler.php

@@ -24,8 +24,6 @@
  */
 class TestObjectHandler implements ObjectHandlerInterface
 {
-    const XML_ROOT = 'tests';
-
     /**
      * Test Object Handler
      *