Writing a GO test to test for the presence of a failure

gistfile1.go

func TestOutOfBoundsBad(t *testing.T) {
	v := MakeBitSet(64)
	defer func() {
	        if r := recover(); r == nil {
	            t.Error("Out of index error within the next set of bits should have caused a panic")
	        }
	    }()
	v.SetBit(1000)
}

func TestOutOfBoundsOK(t *testing.T) {
	v := MakeBitSet(65)
	defer func() {
	        if r := recover(); r != nil {
	            t.Error("Out of index error within the next set of bits should not caused a panic")
	        }
	    }()
	v.SetBit(66)
	
} 

This might supposed to work, but doesn't seem to:

func TestOutOfBounds(t *testing.T) {
v := MakeBitSet(65)
defer recover()
v.SetBit(100)
t.Error("Out of index error should have been caused a panic")
}