test: add unit tests for sanitizeClusterAdmins

Signed-off-by: Hyeonki Hong <[email protected]>

Author: hhk7734

components/access-management/kfam/api_default_test.go

@@ -0,0 +1,69 @@
+package kfam
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestSanitizeClusterAdmins(t *testing.T) {
+	tests := []struct {
+		name string
+		in   []string
+		out  []string
+	}{
+		{
+			name: "empty slice",
+			in:   []string{},
+			out:  nil,
+		},
+		{
+			name: "nil slice",
+			in:   nil,
+			out:  nil,
+		},
+		{
+			name: "empty strings",
+			in:   []string{"", ""},
+			out:  nil,
+		},
+		{
+			name: "whitespace only strings",
+			in:   []string{"  ", " "},
+			out:  nil,
+		},
+		{
+			name: "valid admins",
+			in:   []string{"[email protected]", "[email protected]"},
+			out:  []string{"[email protected]", "[email protected]"},
+		},
+		{
+			name: "admins with leading spaces",
+			in:   []string{"  [email protected]", " [email protected]"},
+			out:  []string{"[email protected]", "[email protected]"},
+		},
+		{
+			name: "admins with trailing spaces",
+			in:   []string{"[email protected]  ", "[email protected] "},
+			out:  []string{"[email protected]", "[email protected]"},
+		},
+		{
+			name: "admins with leading and trailing spaces",
+			in:   []string{"  [email protected]  ", " [email protected] "},
+			out:  []string{"[email protected]", "[email protected]"},
+		},
+		{
+			name: "mixed empty, whitespace, and admins",
+			in:   []string{"", "[email protected]", "   ", "[email protected]  "},
+			out:  []string{"[email protected]", "[email protected]"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			sanitized := sanitizeClusterAdmins(tt.in)
+			if !reflect.DeepEqual(sanitized, tt.out) {
+				t.Errorf("output: %v, expected: %v", sanitized, tt.out)
+			}
+		})
+	}
+}