D3 Heat Map - Test #9 Edge Case about testable-projects-fcc

[Lakston]

I did not encounter this problem, finished project can be seen here : https://lakston.github.io/d3-heatmap/

[tchaffee]

@paycoguy @Christian-Paul @QuincyLarson @tbushman @no-stack-dub-sack I suggest the same solution for this as for issue #70. I would just change the test text to better reflect what it is actually testing:

"The heat map cells must have a data-month attribute, and cells with a month earlier in the year must appear above cells with a later month in the year"

If possible I would like some feedback before moving ahead.

[andrealonzo]

Yes, we should impose a sort order on the axis. As you can see, some campers find the tests too restrictive, but I think it's too hard to create flexible tests to account for every possible variation.

[tchaffee]

@paycoguy Thanks for your quick response and your input. It looks like @tbushman actually dug into this and came up with a solution to check that the axis aligns with the data points, and it should work no matter how the camper sorts the data. PR #127.