Check stepUp() and stepDown() bahevior for type=datetime.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


Invalid value
PASS stepUp("", null, null) threw exception Error: InvalidStateError: DOM Exception 11.
PASS stepDown("", null, null) threw exception Error: InvalidStateError: DOM Exception 11.
Non-number arguments
PASS stepUp("2010-02-10T20:13Z", null, null, "0") is "2010-02-10T20:13Z"
PASS stepDown("2010-02-10T20:13Z", null, null, "0") is "2010-02-10T20:13Z"
PASS stepUp("2010-02-10T20:13Z", null, null, "foo") is "2010-02-10T20:13Z"
PASS stepDown("2010-02-10T20:13Z", null, null, "foo") is "2010-02-10T20:13Z"
PASS stepUp("2010-02-10T20:13Z", null, null, null) is "2010-02-10T20:13Z"
PASS stepDown("2010-02-10T20:13Z", null, null, null) is "2010-02-10T20:13Z"
Normal cases
PASS stepUp("2010-02-10T20:13Z", null, null) is "2010-02-10T20:14Z"
PASS stepDown("2010-02-10T20:13Z", null, null) is "2010-02-10T20:12Z"
PASS stepUp("2010-02-10T20:13Z", null, null, 10) is "2010-02-10T20:23Z"
PASS stepDown("2010-02-10T20:13Z", null, null, 11) is "2010-02-10T20:02Z"
PASS stepUp("1970-01-01T20:13Z", "4", null, 2) is "1970-01-01T20:13:08Z"
PASS stepDown("1970-01-01T20:13Z", "4", null, 3) is "1970-01-01T20:12:48Z"
Step=any
PASS stepUp("2010-02-10T20:13Z", "any", null) threw exception Error: InvalidStateError: DOM Exception 11.
PASS stepDown("2010-02-10T20:13Z", "any", null) threw exception Error: InvalidStateError: DOM Exception 11.
Overflow/underflow
PASS stepUp("2010-02-10T20:13Z", "3.40282346e+38", null) threw exception Error: InvalidStateError: DOM Exception 11.
PASS stepDown("2010-02-10T20:13Z", "3.40282346e+38", null) threw exception Error: InvalidStateError: DOM Exception 11.
PASS stepUp("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z") threw exception Error: InvalidStateError: DOM Exception 11.
PASS stepDown("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z") threw exception Error: InvalidStateError: DOM Exception 11.
PASS successfullyParsed is true

TEST COMPLETE