Trait serde_valid::validation::ValidateMinItems
source · pub trait ValidateMinItems {
// Required method
fn validate_min_items(&self, min_items: usize) -> Result<(), MinItemsError>;
}Expand description
Min length validation of the array items.
See https://json-schema.org/understanding-json-schema/reference/array.html#length
use serde_json::json;
use serde_valid::{Validate, ValidateMinItems};
struct MyType(Vec<i32>);
impl ValidateMinItems for MyType {
fn validate_min_items(
&self,
min_items: usize,
) -> Result<(), serde_valid::MinItemsError> {
self.0.validate_min_items(min_items)
}
}
#[derive(Validate)]
struct TestStruct {
#[validate(min_items = 2)]
val: MyType,
}
let s = TestStruct {
val: MyType(vec![1]),
};
assert_eq!(
s.validate().unwrap_err().to_string(),
json!({
"errors": [],
"properties": {
"val": {
"errors": ["The length of the items must be `>= 2`."]
}
}
})
.to_string()
);