carddav: Try out some tests with insta

crates/carddav/src/principal/tests.rs

@@ -0,0 +1,41 @@
+use rustical_dav::resource::Resource;
+use rustical_store::auth::Principal;
+use rustical_xml::XmlSerializeRoot;
+
+use crate::{CardDavPrincipalUri, principal::PrincipalResource};
+
+#[test]
+fn test_propfind() {
+    let propfind = PrincipalResource::parse_propfind(
+        r#"<?xml version="1.0" encoding="UTF-8"?><propfind xmlns="DAV:"><allprop/></propfind>"#,
+    )
+    .unwrap();
+
+    insta::assert_debug_snapshot!(propfind);
+
+    let principal = Principal {
+        id: "user".to_string(),
+        displayname: None,
+        principal_type: rustical_store::auth::PrincipalType::Individual,
+        password: None,
+        memberships: vec!["group".to_string()],
+    };
+
+    let resource = PrincipalResource {
+        principal: principal.clone(),
+        members: vec![],
+    };
+
+    let response = resource
+        .propfind(
+            &format!("/carddav/principal/{}", principal.id),
+            &propfind.prop,
+            propfind.include.as_ref(),
+            &CardDavPrincipalUri("/carddav"),
+            &principal,
+        )
+        .unwrap();
+
+    insta::assert_debug_snapshot!(response);
+    insta::assert_snapshot!(response.serialize_to_string().unwrap());
+}