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set_test.go
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352 lines (319 loc) · 6.1 KB
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package set_test
import (
"fmt"
"maps"
"regexp"
"slices"
"github.com/eccles/go-set"
)
func ExampleFromIter() {
m := map[string]int{"a": 0, "b": 1}
s := set.FromIter(maps.Keys(m))
fmt.Printf(
"%d %t %t",
len(s),
s.Contains("a"),
s.Contains("b"),
)
// Output: 2 true true
}
func ExampleFromSlice() {
a := []string{"a", "b"}
s := set.FromSlice(a...)
fmt.Printf(
"%d %t %t",
len(s),
s.Contains("a"),
s.Contains("b"),
)
// Output: 2 true true
}
func ExampleFromSlice_int() {
a := []int{1, 2}
s := set.FromSlice(a...)
fmt.Printf(
"%d %t %t",
len(s),
s.Contains(1),
s.Contains(2),
)
// Output: 2 true true
}
func ExampleFromSlice_struct() {
type testStruct struct {
name string
index int
}
oneTestStruct := testStruct{"one", 1}
twoTestStruct := testStruct{"two", 2}
a := []testStruct{oneTestStruct, twoTestStruct}
s := set.FromSlice(a...)
fmt.Printf(
"%d %t %t",
len(s),
s.Contains(oneTestStruct),
s.Contains(twoTestStruct),
)
// Output: 2 true true
}
func ExampleSet_Equal() {
a := []int{1, 2}
b := []int{1, 2}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Equal(t),
)
// Output: true
}
func ExampleSet_Equal_not() {
a := []int{1, 2}
b := []int{1, 3}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Equal(t),
)
// Output: false
}
func ExampleSet_Equal_wronglength() {
a := []int{1, 2}
b := []int{1, 2, 3}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Equal(t),
)
// Output: false
}
func ExampleSet_Sub() {
a := []int{1, 2}
b := []int{1, 2}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Sub(t),
)
// Output: true
}
func ExampleSet_Sub_larger() {
a := []int{1, 2, 3}
b := []int{1, 2}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Sub(t),
)
// Output: true
}
func ExampleSet_Sub_smaller() {
a := []int{1, 2}
b := []int{1, 2, 3}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Sub(t),
)
// Output: false
}
func ExampleSet_Sub_not() {
a := []int{1, 2, 3}
b := []int{1, 4}
s := set.FromSlice(a...)
t := set.FromSlice(b...)
fmt.Printf(
"%t",
s.Sub(t),
)
// Output: false
}
func ExampleSet_String() {
s := set.FromSlice("a", "b")
name := s.String()
re := regexp.MustCompile(`^({a b}|{b a})$`)
fmt.Println(re.Match([]byte(name)))
// Output: true
}
func ExampleSet_String_nil() {
var s set.Set[int]
fmt.Printf("%v", s)
// Output: {}
}
func ExampleSet_List() {
s := set.FromSlice("a", "b")
name := fmt.Sprintf("%v", s.List())
re := regexp.MustCompile(`^(\[a b\]|\[b a\])$`)
fmt.Println(re.Match([]byte(name)))
// Output: true
}
func ExampleSet_Add() {
s := set.FromSlice("a")
s.Add("b", "c")
fmt.Printf(
"%d %t %t %t",
len(s),
s.Contains("a"),
s.Contains("b"),
s.Contains("c"),
)
// Output: 3 true true true
}
func ExampleSet_Remove() {
s := set.FromSlice("a", "b", "c")
s.Remove("b", "c")
fmt.Printf(
"%d %t %t %t",
len(s),
s.Contains("a"),
s.Contains("b"),
s.Contains("c"),
)
// Output: 1 true false false
}
func ExampleSet_Iter() {
s := set.FromSlice("a", "b", "c")
t := []string{}
for k := range s.Iter() {
t = append(t, k)
}
slices.Sort(t)
fmt.Printf(
"%d %v",
len(t),
t,
)
// Output: 3 [a b c]
}
func ExampleSet_Union() {
a := []string{"a", "b", "c"}
m := []string{"c", "d", "e"}
s := set.FromSlice(a...)
t := set.FromSlice(m...)
u := s.Union(t)
fmt.Printf(
"%d %t %t %t %t %t",
len(u),
u.Contains("a"),
u.Contains("b"),
u.Contains("c"),
u.Contains("d"),
u.Contains("e"),
)
// Output: 5 true true true true true
}
func ExampleSet_Union_int() {
a := []int{1, 2, 3}
m := []int{3, 4, 5}
s := set.FromSlice(a...)
t := set.FromSlice(m...)
u := s.Union(t)
fmt.Printf(
"%d %t %t %t %t %t",
len(u),
u.Contains(1),
u.Contains(2),
u.Contains(3),
u.Contains(4),
u.Contains(5),
)
// Output: 5 true true true true true
}
func ExampleSet_Union_struct() {
type testStruct struct {
name string
index int
}
oneTestStruct := testStruct{"one", 1}
twoTestStruct := testStruct{"two", 2}
threeTestStruct := testStruct{"three", 3}
fourTestStruct := testStruct{"four", 4}
fiveTestStruct := testStruct{"five", 5}
a := []testStruct{oneTestStruct, twoTestStruct, threeTestStruct}
m := []testStruct{threeTestStruct, fourTestStruct, fiveTestStruct}
s := set.FromSlice(a...)
t := set.FromSlice(m...)
u := s.Union(t)
fmt.Printf(
"%d %t %t %t %t %t",
len(u),
u.Contains(oneTestStruct),
u.Contains(twoTestStruct),
u.Contains(threeTestStruct),
u.Contains(fourTestStruct),
u.Contains(fiveTestStruct),
)
// Output: 5 true true true true true
}
func ExampleSet_UnionIter() {
a := []string{"a", "b", "c"}
m := map[string]int{"c": 0, "d": 1, "e": 2}
s := set.FromSlice(a...)
u := s.UnionIter(maps.Keys(m))
fmt.Printf(
"%d %t %t %t %t %t",
len(u),
u.Contains("a"),
u.Contains("b"),
u.Contains("c"),
u.Contains("d"),
u.Contains("e"),
)
// Output: 5 true true true true true
}
func ExampleSet_Intersection() {
a := []string{"a", "b", "c"}
m := []string{"c", "d", "e"}
s := set.FromSlice(a...)
t := set.FromSlice(m...)
u := s.Intersection(t)
fmt.Printf("%v", u)
// Output: {c}
}
func ExampleSet_IntersectionIter() {
a := []string{"a", "b", "c"}
m := map[string]int{"c": 0, "d": 1, "e": 2}
s := set.FromSlice(a...)
u := s.IntersectionIter(maps.Keys(m))
fmt.Printf("%v", u)
// Output: {c}
}
func ExampleSet_Difference() {
a := []string{"a", "b", "c"}
m := []string{"c", "d", "e"}
s := set.FromSlice(a...)
t := set.FromSlice(m...)
u := s.Difference(t)
fmt.Printf(
"%d %t %t %t %t %t",
len(u),
u.Contains("a"),
u.Contains("b"),
u.Contains("c"),
u.Contains("d"),
u.Contains("e"),
)
// Output: 2 true true false false false
}
func ExampleSet_SymmetricDifference() {
a := []string{"a", "b", "c"}
m := []string{"c", "d", "e"}
s := set.FromSlice(a...)
t := set.FromSlice(m...)
u := s.SymmetricDifference(t)
fmt.Printf(
"%d %t %t %t %t %t",
len(u),
u.Contains("a"),
u.Contains("b"),
u.Contains("c"),
u.Contains("d"),
u.Contains("e"),
)
// Output: 4 true true false true true
}