+GetUniqueElementsOfStringSlices

This commit is contained in:
Andreas Schulte 2024-06-04 21:41:28 +02:00
parent 47cbbb68e8
commit 98f8e21ad2
Signed by: andreas
GPG Key ID: E123DA7BD8F9C8AB
2 changed files with 67 additions and 0 deletions

20
comparisons.go Normal file
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@ -0,0 +1,20 @@
package utils
// GetUniqueElementsOfStringSlices finds the elements that are in the first slice but not in the second slice
func GetUniqueElementsOfStringSlices(a, b []string) []string {
// Create a map to store the elements of "b"
mapOfElementsOfSliceB := make(map[string]bool)
for _, e := range b {
mapOfElementsOfSliceB[e] = true
}
// Iterate through "a" and find the elements that are not in "b"
var uniqueElementsOfSliceA []string
for _, e := range a {
if !mapOfElementsOfSliceB[e] {
uniqueElementsOfSliceA = append(uniqueElementsOfSliceA, e)
}
}
return uniqueElementsOfSliceA
}

47
comparisons_test.go Normal file
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package utils
import (
"reflect"
"testing"
)
func TestGetUniqueElementsOfStringSlices(t *testing.T) {
data := []map[string][]string{
{
"a": []string{"apple", "banana", "cherry"},
"b": []string{"banana", "cherry", "date", "fig"},
"expectedResult": []string{"apple"},
},
{
"a": []string{"banana", "cherry", "date", "fig"},
"b": []string{"apple", "banana", "cherry"},
"expectedResult": []string{"date", "fig"},
},
{
"a": []string{"apple", "banana", "cherry"},
"b": []string{"apple", "banana", "cherry"},
"expectedResult": []string{},
},
{
"a": []string{},
"b": []string{"apple", "banana", "cherry"},
"expectedResult": []string{},
},
{
"a": []string{"apple", "banana", "cherry"},
"b": []string{},
"expectedResult": []string{"apple", "banana", "cherry"},
},
}
for _, test := range data {
result := GetUniqueElementsOfStringSlices(test["a"], test["b"])
if !reflect.DeepEqual(result, test["expectedResult"]) {
if len(result) == 0 && len(test["expectedResult"]) == 0 {
continue
}
t.Errorf("\ngot: %q\nwanted: %q\nfor: %q", result, test["expectedResult"], test)
}
}
}