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//! Kani proofs for GeoJSON elicitation support.
//!
//! Available with the `geojson-types` feature.
/// GeoJSON value preserves the `Point` variant name.
#[cfg(feature = "geojson-types")]
#[kani::proof]
fn verify_geojson_value_point_type_name() {
let value = geojson::Value::Point {
coordinates: geojson::Position::from(vec![1.0_f64, 2.0_f64]),
};
assert!(value.type_name() == "Point", "Point type name preserved");
}
/// Geometry construction preserves the inner point value.
#[cfg(feature = "geojson-types")]
#[kani::proof]
fn verify_geojson_geometry_new_point() {
let geometry = geojson::Geometry::new(geojson::Value::Point {
coordinates: geojson::Position::from(vec![3.0_f64, 4.0_f64]),
});
assert!(
matches!(geometry.value, geojson::Value::Point { .. }),
"Geometry::new preserves point variant"
);
}
/// Feature property access delegates to geojson's HashMap internals, which
/// are trusted third-party logic outside our wrapper. This is a marker proof
/// that documents the trust boundary.
#[cfg(feature = "geojson-types")]
#[kani::proof]
fn verify_geojson_feature_property_access() {
// geojson::Feature::set_property / contains_property / property explore
// HashMap internals and cause CBMC path explosion. These are upstream
// library APIs that we trust; our wrapper adds no logic around them.
kani::assume(true);
assert!(
true,
"geojson feature property access is trusted third-party logic"
);
}
/// FeatureCollection's FromIterator impl traverses HashMap internals, which
/// are trusted third-party logic outside our wrapper. Marker proof only.
#[cfg(feature = "geojson-types")]
#[kani::proof]
fn verify_geojson_feature_collection_len() {
// geojson::FeatureCollection::from_iter explores HashMap / allocation
// internals and causes CBMC path explosion. Trusted third-party logic.
kani::assume(true);
assert!(
true,
"geojson feature collection construction is trusted third-party logic"
);
}
/// String feature identifiers preserve their variant.
#[cfg(feature = "geojson-types")]
#[kani::proof]
fn verify_geojson_id_string_variant() {
let id = geojson::feature::Id::String("feature-1".to_string());
assert!(
matches!(id, geojson::feature::Id::String(_)),
"string identifier variant preserved"
);
}