Tests for .valueAsNumber with . On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS valueAsNumberFor("0") is 0 PASS valueAsNumberFor("10") is 10 PASS valueAsNumberFor("01") is 1 PASS valueAsNumberFor("-0") is 0 PASS valueAsNumberFor("-1.2") is 0 PASS valueAsNumberFor("1.2E10") is 100 PASS valueAsNumberFor("1.2E-10") is 0 PASS valueAsNumberFor("1.2E+10") is 100 PASS valueAsNumberFor("123456789012345678901234567890123456789") is 100 PASS valueAsNumberFor("0.12345678901234567890123456789012345678901234567890") is 0 valueAsNumber for invalid string values: PASS valueAsNumberFor("") is 50 PASS valueAsNumberFor("abc") is 50 PASS valueAsNumberFor("0xff") is 50 PASS valueAsNumberFor("+1") is 50 PASS valueAsNumberFor(" 10") is 50 PASS valueAsNumberFor("10 ") is 50 PASS valueAsNumberFor(".2") is 50 PASS valueAsNumberFor("1E") is 50 PASS valueAsNumberFor("NaN") is 50 PASS valueAsNumberFor("nan") is 50 PASS valueAsNumberFor("Inf") is 50 PASS valueAsNumberFor("inf") is 50 PASS valueAsNumberFor("Infinity") is 50 PASS valueAsNumberFor("infinity") is 50 Too huge exponent to support PASS valueAsNumberFor("1.2E65535") is 50 Tests for the valueAsNumber setter: PASS setValueAsNumberAndGetValue(0) is "0" PASS setValueAsNumberAndGetValue(10) is "10" PASS setValueAsNumberAndGetValue(01) is "1" PASS setValueAsNumberAndGetValue(-0) is "0" PASS setValueAsNumberAndGetValue(-1.2) is "0" PASS setValueAsNumberAndGetValue(1.2e10) is "100" PASS setValueAsNumberAndGetValue(1.2e-10) is "0" PASS setValueAsNumberAndGetValue(1.2345678901234567e+38) is "100" Tests to set invalid values to valueAsNumber: PASS setValueAsNumberAndGetValue(null) is "0" PASS setValueAsNumberAndGetValue("foo") threw exception Error: NOT_SUPPORTED_ERR: DOM Exception 9. PASS setValueAsNumberAndGetValue(NaN) threw exception Error: NOT_SUPPORTED_ERR: DOM Exception 9. PASS setValueAsNumberAndGetValue(Number.NaN) threw exception Error: NOT_SUPPORTED_ERR: DOM Exception 9. PASS setValueAsNumberAndGetValue(Infinity) threw exception Error: NOT_SUPPORTED_ERR: DOM Exception 9. PASS setValueAsNumberAndGetValue(Number.POSITIVE_INFINITY) threw exception Error: NOT_SUPPORTED_ERR: DOM Exception 9. PASS setValueAsNumberAndGetValue(Number.NEGATIVE_INFINITY) threw exception Error: NOT_SUPPORTED_ERR: DOM Exception 9. PASS successfullyParsed is true TEST COMPLETE