}
	}

	if t.Failed() {
		t.Logf("\n%s", buf.Bytes())
	}
}

// Verify that the SourcePos mode doesn't emit unnecessary //line directives
// before empty lines.
func TestIssue5945(t *testing.T) {
	const orig = `
package p   // line 2
func f() {} // line 3

var x, y, z int


func g() { // line 8
}
`

	const want = `//line src.go:2
package p