Fixed multiply string by negative number panic #2211

pkg/yqlib/operator_multiply_test.go

@@ -201,6 +201,13 @@ var multiplyOperatorScenarios = []expressionScenario{
 			fmt.Sprintf("D0, P[], (!!str)::%s\n", strings.Repeat("banana", 4)),
 		},
 	},
+	{
+		description:   "Multiply string X by negative int",
+		skipDoc:       true,
+		document:      `n: -4`,
+		expression:    `"banana" * .n`,
+		expectedError: "Cannot repeat string by a negative number (-4)",
+	},
 	{
 		description: "Multiply int node X string",
 		document: `n: 4