Check the basic features of the ":nth-child(An+B of selectorList)" pseudo class.

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


Testing ":nth-child(0 of testcaseA, testcaseB)"
PASS document.querySelectorAll('#test-root :nth-child(0 of testcaseA, testcaseB)').length is 0
PASS getComputedStyle(document.querySelectorAll("#test-root *")[0]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[1]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[2]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[3]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[4]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[5]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[6]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[7]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[8]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[9]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[10]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[11]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[12]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[13]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[14]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[15]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[16]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[17]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[18]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[19]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[20]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[21]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[22]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[23]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[24]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[25]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[26]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[27]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[28]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[29]).backgroundColor is "rgb(255, 0, 0)"

Testing ":nth-child(0n of testcaseA, testcaseB)"
PASS document.querySelectorAll('#test-root :nth-child(0n of testcaseA, testcaseB)').length is 0
PASS getComputedStyle(document.querySelectorAll("#test-root *")[0]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[1]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[2]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[3]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[4]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[5]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[6]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[7]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[8]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[9]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[10]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[11]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[12]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[13]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[14]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[15]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[16]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[17]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[18]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[19]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[20]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[21]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[22]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[23]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[24]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[25]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[26]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[27]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[28]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[29]).backgroundColor is "rgb(255, 0, 0)"

Testing ":nth-child(0n-1 of testcaseA, testcaseB)"
PASS document.querySelectorAll('#test-root :nth-child(0n-1 of testcaseA, testcaseB)').length is 0
PASS getComputedStyle(document.querySelectorAll("#test-root *")[0]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[1]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[2]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[3]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[4]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[5]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[6]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[7]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[8]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[9]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[10]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[11]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[12]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[13]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[14]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[15]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[16]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[17]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[18]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[19]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[20]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[21]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[22]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[23]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[24]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[25]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[26]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[27]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[28]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[29]).backgroundColor is "rgb(255, 0, 0)"

Testing ":nth-child(-n+0 of testcaseA, testcaseB)"
PASS document.querySelectorAll('#test-root :nth-child(-n+0 of testcaseA, testcaseB)').length is 0
PASS getComputedStyle(document.querySelectorAll("#test-root *")[0]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[1]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[2]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[3]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[4]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[5]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[6]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[7]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[8]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[9]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[10]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[11]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[12]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[13]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[14]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[15]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[16]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[17]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[18]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[19]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[20]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[21]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[22]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[23]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[24]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[25]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[26]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[27]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[28]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[29]).backgroundColor is "rgb(255, 0, 0)"

Testing ":nth-child(-1 of testcaseA, testcaseB)"
PASS document.querySelectorAll('#test-root :nth-child(-1 of testcaseA, testcaseB)').length is 0
PASS getComputedStyle(document.querySelectorAll("#test-root *")[0]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[1]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[2]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[3]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[4]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[5]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[6]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[7]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[8]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[9]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[10]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[11]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[12]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[13]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[14]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[15]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[16]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[17]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[18]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[19]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[20]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[21]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[22]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[23]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[24]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[25]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[26]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[27]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[28]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[29]).backgroundColor is "rgb(255, 0, 0)"

Testing ":nth-child(-n-1 of testcaseA, testcaseB)"
PASS document.querySelectorAll('#test-root :nth-child(-n-1 of testcaseA, testcaseB)').length is 0
PASS getComputedStyle(document.querySelectorAll("#test-root *")[0]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[1]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[2]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[3]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[4]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[5]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[6]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[7]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[8]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[9]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[10]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[11]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[12]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[13]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[14]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[15]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[16]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[17]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[18]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[19]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[20]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[21]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[22]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[23]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[24]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[25]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[26]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[27]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[28]).backgroundColor is "rgb(255, 0, 0)"
PASS getComputedStyle(document.querySelectorAll("#test-root *")[29]).backgroundColor is "rgb(255, 0, 0)"

PASS successfullyParsed is true

TEST COMPLETE