Allowing relative date format.

[grasmash]

No description provided.

[grasmash]

This permits the values for date fields to be entered relative to the current date rather than absolute. This is much more helpful for testing features that have a sense of past and future. For instance, a view that displays future events or a blog that displays only past blog posts.

Example usage:

  Background:
    Given live_lesson content:
      | title                 | field_video                                 | field_air_date      | uid |
      | Mothership Connection | https://www.youtube.com/watch?v=GT3ecv01xDE | relative: now       | 1   |

You can also use values like relative: +1 days, or anything else supported by strtotime(). See http://php.net/manual/en/datetime.formats.relative.j.

[jhedstrom]

Seems to be a parsing error:

Parse error: syntax error, unexpected 'function' (T_FUNCTION), expecting identifier (T_STRING) or \\ (T_NS_SEPARATOR) in ./src/Drupal/Driver/Fields/Drupal8/DatetimeHandler.php on line 5

The branch could also use a rebase of the latest master.

[grasmash]

@jhedstrom Resolved and rebased!

[jhedstrom]

Needs a code comment shortened for coding standards check :)

[jhedstrom]

Awesome, thanks!

[jonathanjfshaw]

#126 now rerolled to allow for this