Assessor performs a timed grid test

[lachko]

To do

• start / stop buttons with associated timer functionality
• As a Project Owner I want to be able to define skip logic on grids based on previous survey answers in order to present only relative grids according to student knowledge. (calculated fields)
• "last marked" mode entered when stopped or timer runs out
• needs validation integration with iron-form so that it can prevent an item from being continued before a tangy-timed is complete if required or in the middle of the timer. What is the API a custom element must use to be iron-form compatible? PolymerElements/iron-form#217 (comment)
• Use buttons for grid items, not checkboxes
  • tangy-button-checkbox, option elements that provide configuration, or paper-button-group multiselect?
• Confirm last item read?
• Allow last attempted / mark modes after timer runs out or hits stop?

Tasks

• Code
• Unit tests
• Documentation
• Integration Tests

Acceptance criteria

Given that I have defined a grid before a survey subtest.
When I define that this survey subtest is linked to a grid
Then I am able to select for each question whether or not it is skipped base on the number of attempted items on the linked grid

Given that I linked a subtest to a grid
And I have defined the number of attempted items on a question to be N
When a student has attempted less then N items based on the last attempted item mark for the grid
Then this question is skipped

About

[rjcorwin]

@lachko We're having trouble with formly on this one but we have a way forward with plain HTML forms inside of <tangerine-form>. What I need to do is make sure that <tangerine-form> passes an aggregated data model between all form elements inside of itself to all of its children form elements so they can do onchange="..." skip logic.

[rjcorwin]