{"mixed$|bag$$$", "mixed$|bagPID$"},
	{"$", "$"},
	{"$}", "$}"},
	{"${", ""},  // invalid syntax; eat up the characters
	{"${}", ""}, // invalid syntax; eat up the characters
}

func TestExpand(t *testing.T) {
	for _, test := range expandTests {
		result := Expand(test.in, testGetenv)
		if result != test.out {
			t.Errorf("Expand(%q)=%q; expected %q", test.in, result, test.out)
		}
	}
}

			return false
		}
		return got.Equal(natFromBytes(xBytes).ExpandFor(m)) == yes
	}

	err := quick.Check(f, &quick.Config{})
	if err != nil {
		t.Error(err)
	}
}

func TestExpand(t *testing.T) {
	sliced := []uint{1, 2, 3, 4}
	examples := []struct {
		in  []uint
		n   int
		out []uint
	}{{
		[]uint{1, 2},
		4,
		[]uint{1, 2, 0, 0},
	}, {
		sliced[:2],
		4,