feat: add JsonToArray with tests

Add JsonToArray function with corresponding tests.
Using linux instead of windows to solve the problem of line break recognition, thus the test did not report an error.

enforcer_test.go

@@ -734,7 +734,7 @@ func TestLinkConditionFunc(t *testing.T) {
 	testDomainEnforce(t, e, "alice", "domain5", "data5", "write", false)
 }
 
-func TestABACWithJsonArray(t *testing.T){
+func TestABACWithJsonArray(t *testing.T) {
 	modelContent := `
 		[request_definition]
 		r = sub, obj, act
@@ -748,13 +748,13 @@ func TestABACWithJsonArray(t *testing.T){
 		 [matchers]
 		  m = r.sub == p.sub && (r.obj[0] == p.obj || r.obj[1] == p.obj) && r.act == p.act
     `
-    m, err := model.NewModelFromString(modelContent)
-    if err != nil {
-	    t.Fatalf("Failed to create model: %v", err)
-    }
-    e, err := NewEnforcer(m)
-    if err != nil {
-	    t.Fatalf("Failed to create enforcer: %v", err)
-    }
-    e.EnableAcceptJsonRequest(true)
-    }
+	m, err := model.NewModelFromString(modelContent)
+	if err != nil {
+		t.Fatalf("Failed to create model: %v", err)
+	}
+	e, err := NewEnforcer(m)
+	if err != nil {
+		t.Fatalf("Failed to create enforcer: %v", err)
+	}
+	e.EnableAcceptJsonRequest(true)
+}

util/util.go

@@ -43,6 +43,7 @@ func JsonToArray(jsonStr string) ([]interface{}, error) {
 	}
 	return arr, nil
 }
+
 // EscapeAssertion escapes the dots in the assertion, because the expression evaluation doesn't support such variable names.
 func EscapeAssertion(s string) string {
 	s = escapeAssertionRegex.ReplaceAllStringFunc(s, func(m string) string {