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use crate::{Schemas, Validable, ValidationReport, error, schema};
use serde_json::Value;
fn error_then_map(error: error::ValidationError, _: ()) -> error::ValidationError {
let type_ = error::type_::ValidationErrorType::Then {
then: Box::new(error.type_),
};
error::ValidationError {
instance: error.instance,
pointer: error.pointer,
type_,
}
}
impl schema::object::ObjectSchema {
pub(crate) fn validate_if(
&self,
instance: &Value,
state: &mut schema::common::state::State,
relative_schemas: &Schemas,
parent_id: Option<&schema::common::id::Id>,
) -> ValidationReport {
match self.if_.as_ref() {
Some(if_schema) => {
let mut report = ValidationReport::default();
let if_report = if_schema.validate(instance, state, relative_schemas, parent_id);
match if_report.errors {
Some(if_errors) => {
if let Some(else_schema) = self.else_.as_ref() {
let else_report =
else_schema.validate(instance, state, relative_schemas, parent_id);
match else_report.errors {
Some(else_errors) => {
let error = error::ValidationError {
instance: instance.clone(),
type_: error::type_::ValidationErrorType::Else {
if_: if_errors,
else_: else_errors,
},
..Default::default()
};
report.push_error(error);
}
None => {
report.extend(else_report, None);
}
}
}
}
None => {
report.extend(if_report, None);
if let Some(then_schema) = self.then.as_ref() {
let then_report = then_schema
.validate(instance, state, relative_schemas, parent_id)
.map_errors(error_then_map, ());
report.extend(then_report, None);
}
}
}
report
}
None => Default::default(),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::tests;
use rstest::rstest;
use serde_json::json;
/// Tests from [Learn JSONSchema](https://www.learnjsonschema.com/2020-12/applicator/if/)
/// Tests from [Learn JSONSchema](https://www.learnjsonschema.com/2020-12/applicator/then/)
/// Tests from [Learn JSONSchema](https://www.learnjsonschema.com/2020-12/applicator/else/)
#[rstest]
#[case::valid_then(
json!({"foo": "foo", "bar": "bar"}),
json!({
"$schema": "https://json-schema.org/draft/2020-12/schema",
"if": {
"properties":{
"foo": {"const": "foo"}
}
},
"then": {
"required": [
"bar"
]
},
"else": {
"required": [
"baz"
]
}
}),
None
)]
#[case::invalid_then(
json!({"foo": "foo"}),
json!({
"$schema": "https://json-schema.org/draft/2020-12/schema",
"if": {
"properties":{
"foo": {"const": "foo"}
}
},
"then": {
"required": [
"bar"
]
},
"else": {
"required": [
"baz"
]
}
}),
Some(vec![error::ValidationError {
instance: json!({
"foo": "foo"
}),
type_: error::type_::ValidationErrorType::Then {
then: Box::new(error::type_::ValidationErrorType::Required {
property_names: Vec::from(["bar".to_string()])
})
},
..Default::default()
}])
)]
#[case::valid_else(
json!({"foo": "not foo", "baz": "baz"}),
json!({
"$schema": "https://json-schema.org/draft/2020-12/schema",
"if": {
"properties":{
"foo": {"const": "foo"}
}
},
"then": {
"required": [
"bar"
]
},
"else": {
"required": [
"baz"
]
}
}),
None
)]
#[case::invalid_else(
json!({"foo": "not foo"}),
json!({
"$schema": "https://json-schema.org/draft/2020-12/schema",
"if": {
"properties":{
"foo": {"const": "foo"}
}
},
"then": {
"required": [
"bar"
]
},
"else": {
"required": [
"baz"
]
}
}),
Some(vec![error::ValidationError {
instance: json!({
"foo": "not foo"
}),
type_: error::type_::ValidationErrorType::Else {
if_: vec![error::ValidationError {
instance: json!("not foo"),
pointer: vec![error::pointer::ValidationErrorPointer::Key("foo".to_string())],
type_: error::type_::ValidationErrorType::Properties {
property: Box::new(
error::type_::ValidationErrorType::Const {
const_: json!("foo")
}
)
},
}],
else_: vec![error::ValidationError {
instance: json!({
"foo": "not foo"
}),
type_: error::type_::ValidationErrorType::Required {
property_names: Vec::from(["baz".to_string()])
},
..Default::default()
}]
},
..Default::default()
}])
)]
fn test_if(
#[case] instance: Value,
#[case] schema: Value,
#[case] expected: Option<error::ValidationErrors>,
) {
tests::assert_validate(instance, schema, expected);
}
}