for _, test := range sortTests {
		got := sprint(test.data)
		if got != test.print {
			t.Errorf("%s: got %q, want %q", reflect.TypeOf(test.data), got, test.print)
		}
	}
}

func TestInterface(t *testing.T) {
	// A map containing multiple concrete types should be sorted by type,
	// then value. However, the relative ordering of types is unspecified,
	// so test this by checking the presence of sorted subgroups.

}

// Tests to make sure that the type fields of empty interfaces and itab
// fields of nonempty interfaces are unique even across modules,
// so that interface equality works correctly.
func TestInterface(t *testing.T) {
	globalSkip(t)
	goCmd(t, "install", "-buildmode=shared", "-linkshared", "./iface_a")
	// Note: iface_i gets installed implicitly as a dependency of iface_a.

	Sq1, Sq2, Sq3 Squarer
	F             float64
	Sq            []Squarer
}

// The same struct without interfaces
type NoInterfaceItem struct {
	I int
	F float64
}

func TestInterface(t *testing.T) {
	iVal := Int(3)
	fVal := Float(5)
	// Sending a Vector will require that the receiver define a type in the middle of
	// receiving the value for item2.
	vVal := Vector{1, 2, 3}