Support setting up aliases for groups of resources

Closes #5278

pkg/kubectl/resource/builder_test.go

@@ -783,3 +783,36 @@ func TestReceiveMultipleErrors(t *testing.T) {
 		t.Errorf("unexpected errors %v", errs)
 	}
 }
+
+func TestReplaceAliases(t *testing.T) {
+	tests := []struct {
+		name     string
+		args     []string
+		expected []string
+	}{
+		{
+			name:     "no-replacement",
+			args:     []string{"service", "pods", "rc"},
+			expected: []string{"service", "pods", "rc"},
+		},
+		{
+			name:     "all-replacement",
+			args:     []string{"all"},
+			expected: []string{"rc,svc,pods,pvc"},
+		},
+	}
+
+	b := NewBuilder(latest.RESTMapper, api.Scheme, fakeClient())
+
+	for _, test := range tests {
+		replaced := b.replaceAliases(test.args)
+		if len(replaced) != len(test.expected) {
+			t.Errorf("%s: unexpected args length: expected %d, got %d", test.name, len(test.expected), len(replaced))
+		}
+		for i, arg := range test.expected {
+			if arg != replaced[i] {
+				t.Errorf("%s: unexpected argument: expected %s, got %s", test.name, arg, replaced[i])
+			}
+		}
+	}
+}