serde_valid 0.2.0

use serde_json::json;
use serde_valid::{Validate, ValidateMaxItems, ValidateMinItems};

#[test]
fn items_vec_type() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4)]
        #[validate(max_items = 4)]
        val: Vec<i32>,
    }

    let s = TestStruct {
        val: vec![1, 2, 3, 4],
    };
    assert!(s.validate().is_ok());
}

#[test]
fn items_array_type() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4)]
        #[validate(max_items = 4)]
        val: [i32; 4],
    }

    let s = TestStruct { val: [1, 2, 3, 4] };
    assert!(s.validate().is_ok());
}

#[test]
fn items_min_items_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 3)]
        #[validate(max_items = 5)]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };
    assert!(s.validate().is_ok());
}

#[test]
fn items_min_items_is_err() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4)]
        #[validate(max_items = 5)]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };
    assert!(s.validate().is_err());
}

#[test]
fn items_max_items_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 0)]
        #[validate(max_items = 4)]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };
    assert!(s.validate().is_ok());
}

#[test]
fn items_max_items_is_err() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 1)]
        #[validate(max_items = 2)]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };
    assert!(s.validate().is_err());
}

#[test]
fn items_vec_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 2)]
        #[validate(max_items = 2)]
        val: Vec<Vec<i32>>,
    }

    let s = TestStruct {
        val: vec![vec![], vec![1, 2, 3]],
    };
    assert!(s.validate().is_ok());
}

#[test]
fn items_option_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4)]
        #[validate(max_items = 4)]
        val: Option<Vec<i32>>,
    }

    let s = TestStruct {
        val: Some(vec![1, 2, 3, 4]),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn items_nested_option_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 3)]
        #[validate(max_items = 3)]
        val: Option<Option<Vec<i32>>>,
    }

    let s = TestStruct {
        val: Some(Some(vec![1, 2, 3])),
    };
    assert!(s.validate().is_ok());
}

#[test]
fn items_vec_optional_type_is_ok() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 3)]
        #[validate(max_items = 3)]
        val: Vec<Option<Vec<i32>>>,
    }

    let s = TestStruct {
        val: vec![Some(vec![1, 2, 3, 4]), Some(vec![1, 2, 3, 4]), None],
    };
    assert!(s.validate().is_ok());
}

#[test]
fn items_err_message() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4)]
        #[validate(max_items = 4)]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };

    assert_eq!(
        serde_json::to_string(&s.validate().unwrap_err()).unwrap(),
        serde_json::to_string(&json!({
            "val": [
                "the length of the items must be `>= 4`."
            ]
        }))
        .unwrap()
    );
}

#[test]
fn items_custom_err_message_fn() {
    fn min_error_message(_params: &serde_valid::MinItemsErrorParams) -> String {
        "this is min custom message.".to_string()
    }
    fn max_error_message(_params: &serde_valid::MaxItemsErrorParams) -> String {
        "this is max custom message.".to_string()
    }

    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4, message_fn(min_error_message))]
        #[validate(max_items = 2, message_fn(max_error_message))]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };

    assert_eq!(
        serde_json::to_string(&s.validate().unwrap_err()).unwrap(),
        serde_json::to_string(&json!({
            "val": [
                "this is min custom message.",
                "this is max custom message."
            ]
        }))
        .unwrap()
    );
}

#[test]
fn items_custom_err_message() {
    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 4, message = "this is min custom message.")]
        #[validate(max_items = 2, message = "this is max custom message.")]
        val: Vec<i32>,
    }

    let s = TestStruct { val: vec![1, 2, 3] };

    assert_eq!(
        serde_json::to_string(&s.validate().unwrap_err()).unwrap(),
        serde_json::to_string(&json!({
            "val": [
                "this is min custom message.",
                "this is max custom message."
            ]
        }))
        .unwrap()
    );
}

#[test]
fn items_trait() {
    struct MyType(Vec<i32>);

    impl ValidateMinItems for MyType {
        fn validate_min_items(
            &self,
            min_items: usize,
        ) -> Result<(), serde_valid::MinItemsErrorParams> {
            self.0.validate_min_items(min_items)
        }
    }

    impl ValidateMaxItems for MyType {
        fn validate_max_items(
            &self,
            max_items: usize,
        ) -> Result<(), serde_valid::MaxItemsErrorParams> {
            self.0.validate_max_items(max_items)
        }
    }

    #[derive(Validate)]
    struct TestStruct {
        #[validate(min_items = 3)]
        #[validate(max_items = 3)]
        val: MyType,
    }

    let s = TestStruct {
        val: MyType(vec![1, 2, 3]),
    };

    assert!(s.validate().is_ok());
}