Test that the methods throw INVALID_STATE_ERR when the media element has not loaded. canPlayType() never throws.

EXPECTED (video.networkState == '0') OK
EXPECTED (video.currentSrc == '') OK
No 'src'. Verify that all methods except canPlayType() throw INVALID_STATE_ERR.
TEST(video.webkitGenerateKeyRequest('webkit-org.w3.clearkey')) THROWS(DOMException.INVALID_STATE_ERR: Failed to execute 'webkitGenerateKeyRequest' on 'HTMLMediaElement': No player is available.) OK
TEST(video.webkitAddKey('webkit-org.w3.clearkey', key)) THROWS(DOMException.INVALID_STATE_ERR: Failed to execute 'webkitAddKey' on 'HTMLMediaElement': No player is available.) OK
TEST(video.webkitCancelKeyRequest('webkit-org.w3.clearkey')) THROWS(DOMException.INVALID_STATE_ERR: Failed to execute 'webkitCancelKeyRequest' on 'HTMLMediaElement': No player is available.) OK
RUN(video.canPlayType('audio/wav', 'webkit-org.w3.clearkey'))

'src' has been set, but loading has not yet started. Verify that all methods except canPlayType() throw INVALID_STATE_ERR.
EXPECTED (video.networkState == '3') OK
EXPECTED (video.currentSrc == '') OK
TEST(video.webkitGenerateKeyRequest('webkit-org.w3.clearkey')) THROWS(DOMException.INVALID_STATE_ERR: An attempt was made to use an object that is not, or is no longer, usable.) OK
TEST(video.webkitAddKey('webkit-org.w3.clearkey', key)) THROWS(DOMException.INVALID_STATE_ERR: An attempt was made to use an object that is not, or is no longer, usable.) OK
TEST(video.webkitCancelKeyRequest('webkit-org.w3.clearkey')) THROWS(DOMException.INVALID_STATE_ERR: An attempt was made to use an object that is not, or is no longer, usable.) OK
RUN(video.canPlayType('audio/wav', 'webkit-org.w3.clearkey'))

EVENT(loadstart)
TEST(video.networkState == video.NETWORK_LOADING || video.networkState == video.NETWORK_IDLE) OK
EXPECTED (video.currentSrc != '') OK
Verify that none of the methods throw when load has started.
RUN(video.webkitGenerateKeyRequest('webkit-org.w3.clearkey'))
RUN(video.webkitAddKey('webkit-org.w3.clearkey', key))
RUN(video.webkitCancelKeyRequest('webkit-org.w3.clearkey'))
RUN(video.canPlayType('audio/wav', 'webkit-org.w3.clearkey'))
END OF TEST