Union of examples tables is broken

[elchupanebrej]

When I execute Feature

            Feature: Outline
                Scenario Outline: Outlined given, when, thens
                    Given there are <start> cucumbers
                    When I eat <eat> cucumbers
                    Then I should have <left> cucumbers

                    Examples:
                    | start | eat | left |
                    |  12   |  5  |  7   | # a comment

                    Examples:
                    | start | eat | left |
                    |  5    |  4  |  1   | # a comment

Two scenarios are executed (OK)

But when I execute Feature:

          Feature: Outline
                Scenario Outline: Outlined given, when, thens
                    Given there are <start> cucumbers
                    When I eat <eat> cucumbers
                    Then I should have <left> cucumbers

                    Examples:
                    | start | eat | left |
                    |  12   |  5  |  7   | # a comment

                    Examples: Vertical
                    | start | 5 |
                    | eat   | 4 |
                    | left  | 1 |

The test fails with (not OK):

___________________ ERROR collecting test_multi_outlined.py ___________________
C:\Users\bulky\Projects\pytest-bdd\pytest_bdd\parser.py:172: in parse_feature
    (scenario or feature).examples.add_example_row(param_line_parts[0], param_line_parts[1:])
C:\Users\bulky\Projects\pytest-bdd\pytest_bdd\parser.py:420: in add_example_row
    raise exceptions.ExamplesNotValidError(
E   pytest_bdd.exceptions.ExamplesNotValidError: Example rows should contain unique parameters. "start" appeared more than once

During handling of the above exception, another exception occurred:
test_multi_outlined.py:3: in <module>
    @scenario(
C:\Users\bulky\Projects\pytest-bdd\pytest_bdd\scenario.py:232: in scenario
    feature = get_feature(features_base_dir, feature_name, encoding=encoding)
C:\Users\bulky\Projects\pytest-bdd\pytest_bdd\feature.py:54: in get_feature
    feature = parse_feature(base_path, filename, encoding=encoding)
C:\Users\bulky\Projects\pytest-bdd\pytest_bdd\parser.py:175: in parse_feature
    raise exceptions.FeatureError(
E   pytest_bdd.exceptions.FeatureError: Scenario has not valid examples. Example rows should contain unique parameters. "start" appeared more than once.
E   Line number: 12.
E   Line: | start | 5 |.
E   File: outline.feature
=========================== short test summary info ===========================
ERROR test_multi_outlined.py - pytest_bdd.exceptions.FeatureError: Scenario h...
!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
============================== 1 error in 0.18s ===============================

These two cases are exactly the same but are executed differently

[elchupanebrej]

This fixed by #478

[olegpidsadnyi]

Proper support for the multiple example tables has to be implemented as separate example tables with their own tags etc.