Check stepping-up and -down for  from renderer. No cases of empty initial values for type=date, datetime, datetime-local, month, time, week.

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


Date type
Function arguments are (value, step, {min or max}, [stepCount]).
Normal cases
PASS stepUp("2010-02-10", null, null) is "2010-02-11"
PASS stepDown("2010-02-10", null, null) is "2010-02-09"
PASS stepUp("2010-02-10", null, null, 10) is "2010-02-20"
PASS stepDown("2010-02-10", null, null, 11) is "2010-01-30"
PASS stepUp("1970-01-01", "4", null, 2) is "1970-01-09"
PASS stepDown("1970-01-01", "4", null, 3) is "1969-12-20"
Step=any
PASS stepUp("2010-02-10", "any", null) is "2010-02-10"
PASS stepDown("2010-02-10", "any", null) is "2010-02-10"
Overflow/underflow
PASS stepUp("2010-02-10", "3.40282346e+38", null) is "275760-09-13"
PASS stepDown("2010-02-10", "3.40282346e+38", null) is "1970-01-01"
PASS stepUp("2010-02-10", "1", "2010-02-10") is "2010-02-10"
PASS stepDown("2010-02-10", "1", "2010-02-10") is "2010-02-10"
stepDown()/stepUp() for stepMismatch values
PASS stepDown("2010-02-10", "3", "2010-02-06") is "2010-02-09"
PASS stepUp("1970-01-02", "2", "") is "1970-01-03"

Datetime type
Function arguments are (value, step, {min or max}, [stepCount]).
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) is "2010-02-10T20:13Z"
PASS stepDown("2010-02-10T20:13Z", "any", null) is "2010-02-10T20:13Z"
Overflow/underflow
PASS stepUp("2010-02-10T20:13Z", "3.40282346e+38", null) is "275760-09-13T00:00:00.000Z"
PASS stepDown("2010-02-10T20:13Z", "3.40282346e+38", null) is "1970-01-01T00:00:00.000Z"
PASS stepUp("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z") is "2010-02-10T20:13Z"
PASS stepDown("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z") is "2010-02-10T20:13Z"
stepDown()/stepUp() for stepMismatch values
PASS stepDown("2010-02-10T20:13Z", "3", "2010-02-10T20:12:56Z") is "2010-02-10T20:12:59Z"
PASS stepUp("1970-01-01T00:13Z", "7", "") is "1970-01-01T00:13:04Z"

Datetime-local type
Function arguments are (value, step, {min or max}, [stepCount]).
Normal cases
PASS stepUp("2010-02-10T20:13", null, null) is "2010-02-10T20:14"
PASS stepDown("2010-02-10T20:13", null, null) is "2010-02-10T20:12"
PASS stepUp("2010-02-10T20:13", null, null, 10) is "2010-02-10T20:23"
PASS stepDown("2010-02-10T20:13", null, null, 11) is "2010-02-10T20:02"
PASS stepUp("1970-01-01T20:13", "4", null, 2) is "1970-01-01T20:13:08"
PASS stepDown("1970-01-01T20:13", "4", null, 3) is "1970-01-01T20:12:48"
Step=any
PASS stepUp("2010-02-10T20:13", "any", null) is "2010-02-10T20:13"
PASS stepDown("2010-02-10T20:13", "any", null) is "2010-02-10T20:13"
Overflow/underflow
PASS stepUp("2010-02-10T20:13", "3.40282346e+38", null) is "275760-09-13T00:00:00.000"
PASS stepDown("2010-02-10T20:13", "3.40282346e+38", null) is "1970-01-01T00:00:00.000"
PASS stepUp("2010-02-10T20:13", "1", "2010-02-10T20:13") is "2010-02-10T20:13"
PASS stepDown("2010-02-10T20:13", "1", "2010-02-10T20:13") is "2010-02-10T20:13"
stepDown()/stepUp() for stepMismatch values
PASS stepDown("2010-02-10T20:13", "3", "2010-02-10T20:12:56") is "2010-02-10T20:12:59"
PASS stepUp("1970-01-01T00:13", "7", "") is "1970-01-01T00:13:04"

Month type
Function arguments are (value, step, {min or max}, [stepCount]).
Normal cases
PASS stepUp("2010-02", null, null) is "2010-03"
PASS stepDown("2010-02", null, null) is "2010-01"
PASS stepUp("2010-02", null, null, 10) is "2010-12"
PASS stepDown("2010-02", null, null, 11) is "2009-03"
PASS stepUp("1970-01", "4", null, 2) is "1970-09"
PASS stepDown("1970-01", "4", null, 3) is "1969-01"
Step=any
PASS stepUp("2010-02", "any", null) is "2010-02"
PASS stepDown("2010-02", "any", null) is "2010-02"
Overflow/underflow
PASS stepUp("2010-02", "3.40282346e+38", null) is "275760-09"
PASS stepDown("2010-02", "3.40282346e+38", null) is "1970-01"
PASS stepUp("2010-02", "1", "2010-02") is "2010-02"
PASS stepDown("2010-02", "1", "2010-02") is "2010-02"
stepDown()/stepUp() for stepMismatch values
PASS stepDown("2010-02", "3", "2009-10") is "2010-01"
PASS stepUp("1970-02", "4", "") is "1970-05"

Number type
Function arguments are (value, step, {min or max}, [stepCount]).
Invalid value
PASS stepUp("", null, null) is "1"
PASS stepDown("", null, null) is "-1"
PASS stepUp("", "any", null) is "0"
PASS stepDown("", "any", null) is "0"
PASS stepUp("", "foo", null) is "1"
PASS stepDown("", "foo", null) is "-1"
PASS stepUp("foo", null, null) is "1"
PASS stepDown("foo", null, null) is "-1"
PASS stepUp("foo", "any", null) is "0"
PASS stepDown("foo", "any", null) is "0"
PASS stepUp("foo", "foo", null) is "1"
PASS stepDown("foo", "foo", null) is "-1"
Normal cases
PASS stepUp("0", null, null) is "1"
PASS stepUp("1", null, null, 2) is "3"
PASS stepUp("3", null, null, -1) is "2"
PASS stepDown("2", null, null) is "1"
PASS stepDown("1", null, null, 2) is "-1"
PASS stepDown("-1", null, null, -1) is "0"
Invalid step value
PASS stepUp("0", "foo", null) is "1"
PASS stepUp("1", "0", null) is "2"
PASS stepUp("2", "-1", null) is "3"
Step=any
PASS stepUp("0", "any", null) is "0"
PASS stepDown("0", "any", null) is "0"
Overflow/underflow
PASS stepDown("1", "1", "0") is "0"
PASS stepDown("0", "1", "0") is "0"
PASS stepDown("1", "1", "0", 2) is "0"
PASS stepDown("1", "3.40282346e+38", "", 2) is "-3.40282346e+38"
PASS stepUp("-1", "1", "0") is "0"
PASS stepUp("0", "1", "0") is "0"
PASS stepUp("-1", "1", "0", 2) is "0"
PASS stepUp("1", "3.40282346e+38", "", 2) is "3.40282346e+38"
stepDown()/stepUp() for stepMismatch values
PASS stepUp("1", "2", "") is "2"
PASS input.min = "0"; stepUp("9", "10", "") is "10"
PASS stepDown("19", "10", "0") is "10"
PASS stepUp("89", "10", "99") is "90"
Huge value and small step
PASS input.min = ""; stepUp("1e+38", "1", "", 999) is "1e+38"
PASS input.max = ""; stepDown("1e+38", "1", "", 999) is "1e+38"
Fractional numbers
PASS input.min = ""; stepUp("0", "0.33333333333333333", "", 3) is "1"
PASS stepUp("1", "0.1", "", 10) is "2"
PASS input.min = "0"; stepUp("0", "0.003921568627450980", "1", 255) is "1"
Rounding
PASS stepUp("5.005", "0.005", "", 2) is "5.015"
PASS stepUp("5.005", "0.005", "", 11) is "5.06"
PASS stepUp("5.005", "0.005", "", 12) is "5.065"
PASS stepUpExplicitBounds("4", "9", "0.005", "5.005", 2) is "5.015"
PASS stepUpExplicitBounds("4", "9", "0.005", "5.005", 11) is "5.06"
PASS stepUpExplicitBounds("4", "9", "0.005", "5.005", 12) is "5.065"

Range type
Function arguments are (min, max, step, value, [stepCount]).
Using the default values
PASS stepUpExplicitBounds(null, null, null, "") is "51"
PASS stepDownExplicitBounds(null, null, null, "") is "49"
PASS stepUpExplicitBounds(null, null, "any", "") is "51"
PASS stepDownExplicitBounds(null, null, "any", "") is "49"
PASS stepUpExplicitBounds(null, null, "foo", "") is "51"
PASS stepDownExplicitBounds(null, null, "foo", "") is "49"
PASS stepUpExplicitBounds(null, null, null, "foo") is "51"
PASS stepDownExplicitBounds(null, null, null, "foo") is "49"
PASS stepUpExplicitBounds(null, null, "any", "foo") is "51"
PASS stepDownExplicitBounds(null, null, "any", "foo") is "49"
PASS stepUpExplicitBounds(null, null, "foo", "foo") is "51"
PASS stepDownExplicitBounds(null, null, "foo", "foo") is "49"
Normal cases
PASS stepUpExplicitBounds(null, null, null, "0") is "1"
PASS stepUpExplicitBounds(null, null, null, "1", 2) is "3"
PASS stepUpExplicitBounds(null, null, null, "3", -1) is "2"
PASS stepDownExplicitBounds("-100", null, null, "2") is "1"
PASS stepDownExplicitBounds("-100", null, null, "1", 2) is "-1"
PASS stepDownExplicitBounds("-100", null, null, "-1", -1) is "0"
Invalid step value
PASS stepUpExplicitBounds(null, null, "foo", "0") is "1"
PASS stepUpExplicitBounds(null, null, "0", "1") is "2"
PASS stepUpExplicitBounds(null, null, "-1", "2") is "3"
PASS stepDownExplicitBounds(null, null, "foo", "1") is "0"
PASS stepDownExplicitBounds(null, null, "0", "2") is "1"
PASS stepDownExplicitBounds(null, null, "-1", "3") is "2"
Step=any
PASS stepUpExplicitBounds(null, null, "any", "1") is "2"
PASS stepDownExplicitBounds(null, null, "any", "1") is "0"
Overflow/underflow
PASS stepUpExplicitBounds(null, "100", "1", "99") is "100"
PASS stepUpExplicitBounds(null, "100", "1", "100") is "100"
PASS stepUpExplicitBounds(null, "100", "1", "99", 2) is "100"
PASS stepDownExplicitBounds("0", null, "1", "1") is "0"
PASS stepDownExplicitBounds("0", null, "1", "0") is "0"
PASS stepDownExplicitBounds("0", null, "1", "1", 2) is "0"
PASS stepDownExplicitBounds(null, null, "3.40282346e+38", "1", 2) is "0"
PASS stepUpExplicitBounds(-100, 0, 1, -1) is "0"
PASS stepUpExplicitBounds(null, 0, 1, 0) is "0"
PASS stepUpExplicitBounds(-100, 0, 1, -1, 2) is "0"
PASS stepUpExplicitBounds(null, null, "3.40282346e+38", "1", 2) is "0"
stepDown()/stepUp() for stepMismatch values
PASS stepUpExplicitBounds(null, null, 2, 1) is "4"
PASS stepUpExplicitBounds(0, null, 10, 9, 9) is "100"
PASS stepDownExplicitBounds(0, null, 10, 19) is "10"
value + step is <= max, but rounded result would be > max.
PASS stepUpExplicitBounds(null, 99, 10, 89) is "90"
Huge value and small step
PASS stepUpExplicitBounds(0, 1e38, 1, 1e38, 999) is "1e+38"
PASS stepDownExplicitBounds(0, 1e38, 1, 1e38, 999) is "1e+38"
Fractional numbers
PASS stepUpExplicitBounds(null, null, 0.33333333333333333, 0, 3) is "1"
PASS stepUpExplicitBounds(null, null, 0.1, 1) is "1.1"
PASS stepUpExplicitBounds(null, null, 0.1, 1, 8) is "1.8"
PASS stepUpExplicitBounds(null, null, 0.1, 1, 10) is "2"
PASS stepUpExplicitBounds(0, 1, 0.003921568627450980, 0, 255) is "1"
PASS stepDownExplicitBounds(null, null, 0.1, 1, 8) is "0.2"
PASS stepDownExplicitBounds(null, null, 0.1, 1) is "0.9"

Time type
Function arguments are (value, step, {min or max}, [stepCount]).
Normal cases
PASS stepUp("20:13", null, null) is "20:14"
PASS stepDown("20:13", null, null) is "20:12"
PASS stepUp("20:13", null, null, 10) is "20:23"
PASS stepDown("20:13", null, null, 11) is "20:02"
PASS stepUp("20:13", "4", null, 2) is "20:13:08"
PASS stepDown("20:13", "4", null, 3) is "20:12:48"
Step=any
PASS stepUp("20:13", "any", null) is "20:13"
PASS stepDown("20:13", "any", null) is "20:13"
Overflow/underflow
PASS stepUp("20:13", "3.40282346e+38", null) is "23:59:59.999"
PASS stepDown("20:13", "3.40282346e+38", null) is "00:00:00.000"
PASS stepUp("20:13", "1", "20:13") is "20:13"
PASS stepDown("20:13", "1", "20:13") is "20:13"
PASS stepUp("23:59", null, null) is "23:59"
PASS stepDown("00:00", null, null) is "00:00"
stepDown()/stepUp() for stepMismatch values
PASS stepDown("20:13", "3", "20:12:56") is "20:12:59"
PASS stepUp("00:13", "7", "") is "00:13:04"

Week type
Function arguments are (value, step, {min or max}, [stepCount]).
Normal cases
PASS stepUp("2010-W02", null, null) is "2010-W03"
PASS stepDown("2010-W02", null, null) is "2010-W01"
PASS stepUp("2010-W02", null, null, 10) is "2010-W12"
PASS stepDown("2010-W02", null, null, 11) is "2009-W44"
PASS stepUp("1970-W01", "4", null, 2) is "1970-W09"
PASS stepDown("1970-W01", "4", null, 3) is "1969-W41"
Step=any
PASS stepUp("2010-W02", "any", null) is "2010-W02"
PASS stepDown("2010-W02", "any", null) is "2010-W02"
Overflow/underflow
PASS stepUp("2010-W02", "3.40282346e+38", null) is "275760-W37"
PASS stepDown("2010-W02", "3.40282346e+38", null) is "1970-W01"
PASS stepUp("2010-W02", "1", "2010-W02") is "2010-W02"
PASS stepDown("2010-W02", "1", "2010-W02") is "2010-W02"
stepDown()/stepUp() for stepMismatch values
PASS stepDown("2010-W02", "2", "2009-W52") is "2010-W01"
PASS stepUp("1970-W02", "4", "") is "1970-W05"

PASS successfullyParsed is true

TEST COMPLETE