{"Package":123}
{}
{"Package":"abc","Unexpected":[null,true,false,99999999999999999999]}
`
	want := strings.ReplaceAll(in, `"Package":"abc"`, `"Package":"abc:variant"`)

	checkJSONFilter(t, in, want)
}

func TestJSONFilterMalformed(t *testing.T) {
	const in = `unexpected text
{"Package":"abc"}
more text
{"Package":"abc"}trailing text
{not json}
no newline`
	const want = `unexpected text
{"Package":"abc:variant"}
more text