add not ends with operator

Author: LeandroSNunes

querybuilder/operator/not_ends_with.go

@@ -0,0 +1,22 @@
+package operator
+
+import (
+	"reflect"
+	"strings"
+)
+
+func init() {
+	AddOperator(NotEndsWith)
+}
+
+var NotEndsWith = &Operator{
+	Name: "ends_with",
+	Evaluate: func(input, value interface{}) bool {
+		rv := reflect.ValueOf(value)
+		if rv.Kind() != reflect.String {
+			return false
+		}
+
+		return !strings.HasSuffix(input.(string), value.(string))
+	},
+}

querybuilder/operator/not_ends_with_test.go

@@ -0,0 +1,24 @@
+package operator
+
+import "testing"
+
+func TestNotEndsWith(t *testing.T) {
+	var inputs = []struct {
+		title string
+		value interface{}
+		input interface{}
+		want  bool
+	}{
+		{title: "with prefix", value: "test", input: "string to the suffix test", want: false},
+		{title: "without prefix", value: "test", input: "string to the suffix", want: true},
+	}
+
+	for _, input := range inputs {
+		t.Run(input.title, func(t *testing.T) {
+			got := NotEndsWith.Evaluate(input.input, input.value)
+			if got != input.want {
+				t.Errorf("%v ends with %v got: %t, want: %t", input.input, input.value, got, input.want)
+			}
+		})
+	}
+}