It’s been two months since some Chinese ships harassed an American naval vessel in international waters, and they’re at it again. This time the unarmed survey vessel was the USNS Impeccable, surrounded and threatened to be rammed by fishing boats.

Last time, the Obama administration responded by sending in a destroyer to escort the USNS Victorious and to keep the harassers at bay.

This time there wasn’t a convenient American warship to aid the harassed auxiliary vessel, so the Impeccable sought help where it could — a Chinese warship, which responded quickly and ordered the harassing fishing vessels to knock it off.

Let me spell that out more clearly: CHINESE fishing vessels harassed an AMERICAN Navy ship, which had to seek help from a CHINESE warship.

In effect, we asked the right hand to make the left hand stop slapping us. And we are thanking that right hand.

China is testing the Obama administration — more specifically, testing its resolve in such matters as freedom of navigation on the high seas.

I’m not sure we’ve passed the test.