Adding upstream version 1.1.0.upstream/1.1.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/internal/utils/slice.go b/tests/internal/utils/slice.go
new file mode 100644
index 0000000..85821f5
--- /dev/null
+++ b/tests/internal/utils/slice.go
@@ -0,0 +1,37 @@
+package utils
+
+import (
+	"fmt"
+	"reflect"
+)
+
+// AnySliceToInterfaceSlice takes a slice of type []T for any T and returns a slice of type []interface{} containing
+// the same elements, somewhat like casting []T to []interface{}.
+func AnySliceToInterfaceSlice(in interface{}) []interface{} {
+	v := reflect.ValueOf(in)
+	if v.Kind() != reflect.Slice {
+		panic(fmt.Errorf("AnySliceToInterfaceSlice() called on %T instead of a slice type", in))
+	}
+
+	out := make([]interface{}, v.Len())
+	for i := 0; i < v.Len(); i++ {
+		out[i] = v.Index(i).Interface()
+	}
+	return out
+}
+
+func SliceSubsets(in ...string) [][]string {
+	result := make([][]string, 0, 1<<len(in))
+
+	for bitset := 0; bitset < (1 << len(in)); bitset++ {
+		var subset []string
+		for i := 0; i < len(in); i++ {
+			if bitset&(1<<i) != 0 {
+				subset = append(subset, in[i])
+			}
+		}
+		result = append(result, subset)
+	}
+
+	return result
+}