Just testing the waters?

Police on the campus of a taxpayer-funded university in central Michigan have arrested a man for posting a threat against black people on Yik Yak, the anonymous social media app.

The threat declared: “I’m going to shoot every black person I can on campus. Starting tomorrow morning.”

The man who police arrested, Emmanuel D. Bowden, is black.

He had lived in Saginaw Valley State housing and is — or was — a student at Delta College, a public, two-year community college nearby, reports The Saginaw News.

Bowden, 21, faces a single charge of making a false report on a threat of terrorism. If convicted, he faces up to 20 years in prison.

Police say Bowden typed his fateful posting into Yik Yak at approximately midnight on Nov. 13 (a Friday).

Upon receiving highly negative feedback on the social media app, police say, Bowden backtracked with messages saying “I’m black” and “I was going to give it an hour to see how you all would react.”

Bowden’s poorly timed Yik Yak posting came on the night of last week’s Paris terror attacks and during a time when race issues on American college campuses have become especially sensitive.

Police actually arrested Bowden on a separate, unrelated warrant — apparently related to misuse of a credit card in a campus convenience store.

Bowden remains in jail in lieu of a $10,000 bond. His case comes before a judge in early December.

A Saginaw Valley State spokesman stressed that, of course, Bowden is presumed innocent until proven guilty.

The FBI assisted with the investigation.