t.Errorf("%d. shouldCopyHeaderOnRedirect(%q, %q => %q) = %v; want %v",
				i, tt.header, tt.initialURL, tt.destURL, got, tt.want)
		}
	}
}

func TestClientRedirectTypes(t *testing.T) { run(t, testClientRedirectTypes) }
func testClientRedirectTypes(t *testing.T, mode testMode) {
	tests := [...]struct {
		method       string
		serverStatus int
		wantMethod   string // desired subsequent client method
	}{