// May be bad. It looks like String() method test...
func TestAdd(t *testing.T) {
tests := []struct {
input int
want string
}{
{0, "{0}"},
{1, "{1}"},
{64, "{64}"},
}
for _, test := range tests {
var x intset.IntSet
x.Add(test.input)
if got := x.String(); got != test.want {
t.Errorf("Add(%d) = %s", test.input, got)
}
}
}
func TestHas(t *testing.T) {
var x intset.IntSet
x.Add(0)
x.Add(64)
tests := []struct {
input int
want bool
}{
{0, true},
{64, true},
{3, false},
{128, false},
}
for _, test := range tests {
if got := x.Has(test.input); got != test.want {
t.Errorf("Has(%d) = %t", test.input, got)
}
}
}
func TestSingleAddLen(t *testing.T) {
tests := []struct {
input int
want int
}{
{0, 1},
{1, 1},
{64, 1},
{256, 1},
}
// single add value case
for _, test := range tests {
var x intset.IntSet
x.Add(test.input)
if got := x.Len(); got != test.want {
t.Errorf("Len() input %d = %d", test.input, got)
}
}
}
func Example_ex6_1() {
var x, z intset.IntSet
x.Add(0)
x.Add(128)
x.Add(1)
x.Add(2)
x.Add(37)
x.Add(64)
fmt.Println(x.String())
// Show the number of x elements
fmt.Println(x.Len())
x.Remove(0)
x.Remove(64)
x.Remove(128)
x.Remove(2)
fmt.Println(x.String())
z = x.Copy()
fmt.Println(z.String())
// Confirm that z doesn't have x's reference.
x.Add(5)
fmt.Println(x.String())
fmt.Println(z.String())
// Clear x
x.Clear()
fmt.Println(x.String())
// Output:
// {0 1 2 37 64 128}
// 6
// {1 37}
// {1 37}
// {1 5 37}
// {1 37}
// {}
}
func TestMultiAddLen(t *testing.T) {
tests := []struct {
input []int
want int
}{
{[]int{0, 1}, 2},
{[]int{0, 0}, 1}, // duplicated input
{[]int{0, 1, 2}, 3},
{[]int{0, 64, 128}, 3},
}
for _, test := range tests {
var x intset.IntSet
for _, v := range test.input {
x.Add(v)
}
if got := x.Len(); got != test.want {
t.Errorf("Len() input %v = %d", test.input, got)
}
}
}
func Example_one() {
var x, y intset.IntSet
x.Add(1)
x.Add(144)
x.Add(9)
fmt.Println(x.String()) // "{1 9 144}"
y.Add(9)
y.Add(42)
fmt.Println(y.String()) // "{9 42}"
x.UnionWith(&y)
fmt.Println(x.String()) // "{1 9 42 144}"
fmt.Println(x.Has(9), x.Has(123)) // "true false"
// Output:
// {1 9 144}
// {9 42}
// {1 9 42 144}
// true false
}
func Example_two() {
var x intset.IntSet
x.Add(1)
x.Add(144)
x.Add(9)
x.Add(42)
fmt.Println(&x) // "{1 9 42 144}"
fmt.Println(x.String()) // "{1 9 42 144}"
fmt.Println(x) // "{[4398046511618 0 65536]}"
// Output:
// {1 9 42 144}
// {1 9 42 144}
// {[4398046511618 0 65536]}
}