tests are weak (JS), edge cases like "89,179", "80, 180.0001", "-90,180", etc. should be tested. I've passed with regex that would not work correctly for such edge cases

all tests passes except "99.234, 12.324" and some rendom tests that disappear
but it passed on regex debugger websites and my local machine!
there must be something wrong with tests

Please add a test where the first coordinate is valid and second is outside range. My code passed by texting latitude only

This kata needs clarification on floating points.

"Validation failed" is about as useful as "value was not what was expected". Use assert_equals.

Ruby trans

It's not clear whether coordinates without space after the comma should be considered valid or not. e.g. is 13.323,18.10543 valid?

You should definitely add tests for 90.01, 180.5, etc. which a lot of the solutions here would fail on. And then test for 90.00, -180.0, etc. as well.

I'm looking at the solution by @AcesOfGlory.
The function will always return Ture, if the first coord is an interger larger than 90.
You could try coord = '2342, 34.324236'.
Shall we add a test to catch the bug like this?

Also, as an addition to @Fake51 comment, you should test for the most edge cases for valid coordinates:

"90, 180"
"-90, -180"

Now there are some solutions that wouldn't pass those edge cases.

As said @Fake51 some test should be added. eg: 181 to second coord.