server: refactor group requests to use filters

server/src/domain/handler.rs

@@ -54,6 +54,17 @@ pub enum UserRequestFilter {
     MemberOfId(GroupId),
 }
 
+#[derive(PartialEq, Eq, Debug, Serialize, Deserialize, Clone)]
+pub enum GroupRequestFilter {
+    And(Vec<GroupRequestFilter>),
+    Or(Vec<GroupRequestFilter>),
+    Not(Box<GroupRequestFilter>),
+    DisplayName(String),
+    GroupId(GroupId),
+    // Check if the group contains a user identified by uid.
+    Member(String),
+}
+
 #[derive(PartialEq, Eq, Debug, Serialize, Deserialize, Clone, Default)]
 pub struct CreateUserRequest {
     // Same fields as User, but no creation_date, and with password.
@@ -94,7 +105,7 @@ pub struct GroupIdAndName(pub GroupId, pub String);
 #[async_trait]
 pub trait BackendHandler: Clone + Send {
     async fn list_users(&self, filters: Option<UserRequestFilter>) -> Result<Vec<User>>;
-    async fn list_groups(&self) -> Result<Vec<Group>>;
+    async fn list_groups(&self, filters: Option<GroupRequestFilter>) -> Result<Vec<Group>>;
     async fn get_user_details(&self, user_id: &str) -> Result<User>;
     async fn get_group_details(&self, group_id: GroupId) -> Result<GroupIdAndName>;
     async fn create_user(&self, request: CreateUserRequest) -> Result<()>;
@@ -117,7 +128,7 @@ mockall::mock! {
     #[async_trait]
     impl BackendHandler for TestBackendHandler {
         async fn list_users(&self, filters: Option<UserRequestFilter>) -> Result<Vec<User>>;
-        async fn list_groups(&self) -> Result<Vec<Group>>;
+        async fn list_groups(&self, filters: Option<GroupRequestFilter>) -> Result<Vec<Group>>;
         async fn get_user_details(&self, user_id: &str) -> Result<User>;
         async fn get_group_details(&self, group_id: GroupId) -> Result<GroupIdAndName>;
         async fn create_user(&self, request: CreateUserRequest) -> Result<()>;

server/src/domain/sql_backend_handler.rs

@@ -21,7 +21,7 @@ impl SqlBackendHandler {
 struct RequiresGroup(bool);
 
 // Returns the condition for the SQL query, and whether it requires joining with the groups table.
-fn get_filter_expr(filter: UserRequestFilter) -> (RequiresGroup, SimpleExpr) {
+fn get_user_filter_expr(filter: UserRequestFilter) -> (RequiresGroup, SimpleExpr) {
     use UserRequestFilter::*;
     fn get_repeated_filter(
         fs: Vec<UserRequestFilter>,
@@ -32,13 +32,13 @@ fn get_filter_expr(filter: UserRequestFilter) -> (RequiresGroup, SimpleExpr) {
         let first_expr = match it.next() {
             None => return (RequiresGroup(false), Expr::value(true)),
             Some(f) => {
-                let (group, filter) = get_filter_expr(f);
+                let (group, filter) = get_user_filter_expr(f);
                 requires_group |= group.0;
                 filter
             }
         };
         let filter = it.fold(first_expr, |e, f| {
-            let (group, filters) = get_filter_expr(f);
+            let (group, filters) = get_user_filter_expr(f);
             requires_group |= group.0;
             field(e, filters)
         });
@@ -48,7 +48,7 @@ fn get_filter_expr(filter: UserRequestFilter) -> (RequiresGroup, SimpleExpr) {
         And(fs) => get_repeated_filter(fs, &SimpleExpr::and),
         Or(fs) => get_repeated_filter(fs, &SimpleExpr::or),
         Not(f) => {
-            let (requires_group, filters) = get_filter_expr(*f);
+            let (requires_group, filters) = get_user_filter_expr(*f);
             (requires_group, Expr::not(Expr::expr(filters)))
         }
         Equality(s1, s2) => (
@@ -72,6 +72,37 @@ fn get_filter_expr(filter: UserRequestFilter) -> (RequiresGroup, SimpleExpr) {
     }
 }
 
+// Returns the condition for the SQL query, and whether it requires joining with the groups table.
+fn get_group_filter_expr(filter: GroupRequestFilter) -> SimpleExpr {
+    use GroupRequestFilter::*;
+    fn get_repeated_filter(
+        fs: Vec<GroupRequestFilter>,
+        field: &dyn Fn(SimpleExpr, SimpleExpr) -> SimpleExpr,
+    ) -> SimpleExpr {
+        let mut it = fs.into_iter();
+        let first_expr = match it.next() {
+            None => return Expr::value(true),
+            Some(f) => get_group_filter_expr(f),
+        };
+        it.fold(first_expr, |e, f| field(e, get_group_filter_expr(f)))
+    }
+    match filter {
+        And(fs) => get_repeated_filter(fs, &SimpleExpr::and),
+        Or(fs) => get_repeated_filter(fs, &SimpleExpr::or),
+        Not(f) => Expr::not(Expr::expr(get_group_filter_expr(*f))),
+        DisplayName(name) => Expr::col((Groups::Table, Groups::DisplayName)).eq(name),
+        GroupId(id) => Expr::col((Groups::Table, Groups::GroupId)).eq(id.0),
+        // WHERE (group_id in (SELECT group_id FROM memberships WHERE user_id = user))
+        Member(user) => Expr::col((Memberships::Table, Memberships::GroupId)).in_subquery(
+            Query::select()
+                .column(Memberships::GroupId)
+                .from(Memberships::Table)
+                .and_where(Expr::col(Memberships::UserId).eq(user))
+                .take(),
+        ),
+    }
+}
+
 #[async_trait]
 impl BackendHandler for SqlBackendHandler {
     async fn list_users(&self, filters: Option<UserRequestFilter>) -> Result<Vec<User>> {
@@ -88,17 +119,13 @@ impl BackendHandler for SqlBackendHandler {
                 .order_by((Users::Table, Users::UserId), Order::Asc)
                 .to_owned();
             if let Some(filter) = filters {
-                if filter
+                if filter == UserRequestFilter::Not(Box::new(UserRequestFilter::And(Vec::new()))) {
-                    == UserRequestFilter::Not(Box::new(
-                        UserRequestFilter::And(Vec::new()),
-                    ))
-                {
                     return Ok(Vec::new());
                 }
                 if filter != UserRequestFilter::And(Vec::new())
                     && filter != UserRequestFilter::Or(Vec::new())
                 {
-                    let (RequiresGroup(requires_group), condition) = get_filter_expr(filter);
+                    let (RequiresGroup(requires_group), condition) = get_user_filter_expr(filter);
                     query_builder.and_where(condition);
                     if requires_group {
                         query_builder
@@ -127,8 +154,9 @@ impl BackendHandler for SqlBackendHandler {
         Ok(results.into_iter().collect::<sqlx::Result<Vec<User>>>()?)
     }
 
-    async fn list_groups(&self) -> Result<Vec<Group>> {
+    async fn list_groups(&self, filters: Option<GroupRequestFilter>) -> Result<Vec<Group>> {
-        let query: String = Query::select()
+        let query: String = {
+            let mut query_builder = Query::select()
                 .column((Groups::Table, Groups::GroupId))
                 .column(Groups::DisplayName)
                 .column(Memberships::UserId)
@@ -140,7 +168,22 @@ impl BackendHandler for SqlBackendHandler {
                 )
                 .order_by(Groups::DisplayName, Order::Asc)
                 .order_by(Memberships::UserId, Order::Asc)
-            .to_string(DbQueryBuilder {});
+                .to_owned();
+
+            if let Some(filter) = filters {
+                if filter == GroupRequestFilter::Not(Box::new(GroupRequestFilter::And(Vec::new())))
+                {
+                    return Ok(Vec::new());
+                }
+                if filter != GroupRequestFilter::And(Vec::new())
+                    && filter != GroupRequestFilter::Or(Vec::new())
+                {
+                    query_builder.and_where(get_group_filter_expr(filter));
+                }
+            }
+
+            query_builder.to_string(DbQueryBuilder {})
+        };
 
         // For group_by.
         use itertools::Itertools;
@@ -546,10 +589,9 @@ mod tests {
         }
         {
             let users = handler
-                .list_users(Some(UserRequestFilter::Not(Box::new(UserRequestFilter::Equality(
+                .list_users(Some(UserRequestFilter::Not(Box::new(
-                    "user_id".to_string(),
+                    UserRequestFilter::Equality("user_id".to_string(), "bob".to_string()),
-                    "bob".to_string(),
+                ))))
-                )))))
                 .await
                 .unwrap()
                 .into_iter()
@@ -575,7 +617,7 @@ mod tests {
         insert_membership(&handler, group_2, "patrick").await;
         insert_membership(&handler, group_2, "John").await;
         assert_eq!(
-            handler.list_groups().await.unwrap(),
+            handler.list_groups(None).await.unwrap(),
             vec![
                 Group {
                     id: group_1,
@@ -594,6 +636,43 @@ mod tests {
                 },
             ]
         );
+        assert_eq!(
+            handler
+                .list_groups(Some(GroupRequestFilter::Or(vec![
+                    GroupRequestFilter::DisplayName("Empty Group".to_string()),
+                    GroupRequestFilter::Member("bob".to_string()),
+                ])))
+                .await
+                .unwrap(),
+            vec![
+                Group {
+                    id: group_1,
+                    display_name: "Best Group".to_string(),
+                    users: vec!["bob".to_string(), "patrick".to_string()]
+                },
+                Group {
+                    id: group_3,
+                    display_name: "Empty Group".to_string(),
+                    users: vec![]
+                },
+            ]
+        );
+        assert_eq!(
+            handler
+                .list_groups(Some(GroupRequestFilter::And(vec![
+                    GroupRequestFilter::Not(Box::new(GroupRequestFilter::DisplayName(
+                        "value".to_string()
+                    ))),
+                    GroupRequestFilter::GroupId(group_1),
+                ])))
+                .await
+                .unwrap(),
+            vec![Group {
+                id: group_1,
+                display_name: "Best Group".to_string(),
+                users: vec!["bob".to_string(), "patrick".to_string()]
+            }]
+        );
     }
 
     #[tokio::test]

server/src/infra/graphql/query.rs

@@ -134,7 +134,7 @@ impl<Handler: BackendHandler + Sync> Query<Handler> {
         }
         Ok(context
             .handler
-            .list_groups()
+            .list_groups(None)
             .await
             .map(|v| v.into_iter().map(Into::into).collect())?)
     }

server/src/infra/ldap_handler.rs

@@ -1,12 +1,11 @@
 use crate::domain::{
     handler::{
-        BackendHandler, BindRequest, Group, GroupIdAndName, LoginHandler, UserRequestFilter, User,
+        BackendHandler, BindRequest, Group, GroupRequestFilter, LoginHandler, User,
+        UserRequestFilter,
     },
     opaque_handler::OpaqueHandler,
 };
 use anyhow::{bail, Context, Result};
-use futures::stream::StreamExt;
-use futures_util::TryStreamExt;
 use ldap3_server::proto::{
     LdapBindCred, LdapBindRequest, LdapBindResponse, LdapExtendedRequest, LdapExtendedResponse,
     LdapFilter, LdapOp, LdapPartialAttribute, LdapPasswordModifyRequest, LdapResult,
@@ -479,8 +478,8 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
     }
 
     async fn get_groups_list(&self, request: &LdapSearchRequest) -> Vec<LdapOp> {
-        let for_user = match self.get_group_filter(&request.filter) {
+        let filter = match self.convert_group_filter(&request.filter) {
-            Ok(u) => u,
+            Ok(f) => f,
             Err(e) => {
                 return vec![make_search_error(
                     LdapResultCode::UnwillingToPerform,
@@ -489,48 +488,7 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
             }
         };
 
-        async fn get_users_for_group<Backend: BackendHandler>(
+        let groups = match self.backend_handler.list_groups(Some(filter)).await {
-            backend_handler: &Backend,
-            g: &GroupIdAndName,
-        ) -> Result<Group> {
-            let users = backend_handler
-                .list_users(Some(UserRequestFilter::MemberOfId(g.0)))
-                .await?;
-            Ok(Group {
-                id: g.0,
-                display_name: g.1.clone(),
-                users: users.into_iter().map(|u| u.user_id).collect(),
-            })
-        }
-
-        let groups: Vec<Group> = if let Some(user) = for_user {
-            let groups_without_users = match self.backend_handler.get_user_groups(&user).await {
-                Ok(groups) => groups,
-                Err(e) => {
-                    return vec![make_search_error(
-                        LdapResultCode::Other,
-                        format!(
-                            r#"Error while listing user groups: "{}": {:#}"#,
-                            request.base, e
-                        ),
-                    )]
-                }
-            };
-            match tokio_stream::iter(groups_without_users.iter())
-                .then(|g| async move { get_users_for_group::<Backend>(&self.backend_handler, g).await })
-                .try_collect::<Vec<Group>>()
-                .await
-            {
-                Ok(groups) => groups,
-                Err(e) => {
-                    return vec![make_search_error(
-                        LdapResultCode::Other,
-                        format!(r#"Error while listing user groups: "{}": {:#}"#, request.base, e),
-                    )]
-                }
-            }
-        } else {
-            match self.backend_handler.list_groups().await {
             Ok(groups) => groups,
             Err(e) => {
                 return vec![make_search_error(
@@ -538,7 +496,6 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
                     format!(r#"Error while listing groups "{}": {:#}"#, request.base, e),
                 )]
             }
-            }
         };
 
         groups
@@ -582,7 +539,7 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
         })
     }
 
-    fn get_group_filter(&self, filter: &LdapFilter) -> Result<Option<String>> {
+    fn convert_group_filter(&self, filter: &LdapFilter) -> Result<GroupRequestFilter> {
         match filter {
             LdapFilter::Equality(field, value) => {
                 if field == "member" || field.to_lowercase() == "uniquemember" {
@@ -591,16 +548,33 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
                         &self.base_dn,
                         &self.base_dn_str,
                     )?;
-                    Ok(Some(user_name))
+                    Ok(GroupRequestFilter::Member(user_name))
                 } else if field.to_lowercase() == "objectclass" && value == "groupOfUniqueNames" {
-                    Ok(None)
+                    Ok(GroupRequestFilter::And(vec![]))
                 } else {
-                    bail!("Unsupported group filter: {:?}", filter)
+                    let field = map_field(field)?;
+                    if field == "display_name" {
+                        Ok(GroupRequestFilter::DisplayName(value.clone()))
+                    } else {
+                        bail!("Unsupported group attribute: {:?}", field)
                     }
                 }
-            LdapFilter::And(v) => v
+            }
+            LdapFilter::And(filters) => Ok(GroupRequestFilter::And(
+                filters
                     .iter()
-                .fold(Ok(None), |o, f| Ok(o?.xor(self.get_group_filter(f)?))),
+                    .map(|f| self.convert_group_filter(f))
+                    .collect::<Result<_>>()?,
+            )),
+            LdapFilter::Or(filters) => Ok(GroupRequestFilter::Or(
+                filters
+                    .iter()
+                    .map(|f| self.convert_group_filter(f))
+                    .collect::<Result<_>>()?,
+            )),
+            LdapFilter::Not(filter) => Ok(GroupRequestFilter::Not(Box::new(
+                self.convert_group_filter(&*filter)?,
+            ))),
             _ => bail!("Unsupported group filter: {:?}", filter),
         }
     }
@@ -638,10 +612,15 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
                     {
                         Ok(UserRequestFilter::And(vec![]))
                     } else {
-                        Ok(UserRequestFilter::Not(Box::new(UserRequestFilter::And(vec![]))))
+                        Ok(UserRequestFilter::Not(Box::new(UserRequestFilter::And(
+                            vec![],
+                        ))))
                     }
                 } else {
-                    Ok(UserRequestFilter::Equality(map_field(field)?, value.clone()))
+                    Ok(UserRequestFilter::Equality(
+                        map_field(field)?,
+                        value.clone(),
+                    ))
                 }
             }
             LdapFilter::Present(field) => {
@@ -649,7 +628,9 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
                 if field.to_lowercase() == "objectclass" || map_field(field).is_ok() {
                     Ok(UserRequestFilter::And(vec![]))
                 } else {
-                    Ok(UserRequestFilter::Not(Box::new(UserRequestFilter::And(vec![]))))
+                    Ok(UserRequestFilter::Not(Box::new(UserRequestFilter::And(
+                        vec![],
+                    ))))
                 }
             }
             _ => bail!("Unsupported user filter: {:?}", filter),
@@ -679,7 +660,7 @@ mod tests {
         #[async_trait]
         impl BackendHandler for TestBackendHandler {
             async fn list_users(&self, filters: Option<UserRequestFilter>) -> Result<Vec<User>>;
-            async fn list_groups(&self) -> Result<Vec<Group>>;
+            async fn list_groups(&self, filters: Option<GroupRequestFilter>) -> Result<Vec<Group>>;
             async fn get_user_details(&self, user_id: &str) -> Result<User>;
             async fn get_group_details(&self, group_id: GroupId) -> Result<GroupIdAndName>;
             async fn get_user_groups(&self, user: &str) -> Result<HashSet<GroupIdAndName>>;
@@ -1048,7 +1029,10 @@ mod tests {
     #[tokio::test]
     async fn test_search_groups() {
         let mut mock = MockTestBackendHandler::new();
-        mock.expect_list_groups().times(1).return_once(|| {
+        mock.expect_list_groups()
+            .with(eq(Some(GroupRequestFilter::And(vec![]))))
+            .times(1)
+            .return_once(|_| {
                 Ok(vec![
                     Group {
                         id: GroupId(1),
@@ -1124,27 +1108,25 @@ mod tests {
     #[tokio::test]
     async fn test_search_groups_filter() {
         let mut mock = MockTestBackendHandler::new();
-        mock.expect_get_user_groups()
+        mock.expect_list_groups()
-            .with(eq("bob"))
+            .with(eq(Some(GroupRequestFilter::And(vec![
+                GroupRequestFilter::DisplayName("group_1".to_string()),
+                GroupRequestFilter::Member("bob".to_string()),
+                GroupRequestFilter::And(vec![]),
+            ]))))
             .times(1)
             .return_once(|_| {
-                let mut set = HashSet::new();
+                Ok(vec![Group {
-                set.insert(GroupIdAndName(GroupId(1), "group_1".to_string()));
+                    display_name: "group_1".to_string(),
-                Ok(set)
+                    id: GroupId(1),
-            });
+                    users: vec![],
-        mock.expect_list_users()
-            .with(eq(Some(UserRequestFilter::MemberOfId(GroupId(1)))))
-            .times(1)
-            .return_once(|_| {
-                Ok(vec![User {
-                    user_id: "bob".to_string(),
-                    ..Default::default()
                 }])
             });
         let mut ldap_handler = setup_bound_handler(mock).await;
         let request = make_search_request(
             "ou=groups,dc=example,dc=com",
             LdapFilter::And(vec![
+                LdapFilter::Equality("cn".to_string(), "group_1".to_string()),
                 LdapFilter::Equality(
                     "uniqueMember".to_string(),
                     "cn=bob,ou=people,dc=example,dc=com".to_string(),
@@ -1168,11 +1150,106 @@ mod tests {
         );
     }
 
+    #[tokio::test]
+    async fn test_search_groups_filter_2() {
+        let mut mock = MockTestBackendHandler::new();
+        mock.expect_list_groups()
+            .with(eq(Some(GroupRequestFilter::Or(vec![
+                GroupRequestFilter::Not(Box::new(GroupRequestFilter::DisplayName(
+                    "group_2".to_string(),
+                ))),
+            ]))))
+            .times(1)
+            .return_once(|_| {
+                Ok(vec![Group {
+                    display_name: "group_1".to_string(),
+                    id: GroupId(1),
+                    users: vec![],
+                }])
+            });
+        let mut ldap_handler = setup_bound_handler(mock).await;
+        let request = make_search_request(
+            "ou=groups,dc=example,dc=com",
+            LdapFilter::Or(vec![LdapFilter::Not(Box::new(LdapFilter::Equality(
+                "displayname".to_string(),
+                "group_2".to_string(),
+            )))]),
+            vec!["cn"],
+        );
+        assert_eq!(
+            ldap_handler.do_search(&request).await,
+            vec![
+                LdapOp::SearchResultEntry(LdapSearchResultEntry {
+                    dn: "cn=group_1,ou=groups,dc=example,dc=com".to_string(),
+                    attributes: vec![LdapPartialAttribute {
+                        atype: "cn".to_string(),
+                        vals: vec!["group_1".to_string()]
+                    },],
+                }),
+                make_search_success(),
+            ]
+        );
+    }
+
+    #[tokio::test]
+    async fn test_search_groups_error() {
+        let mut mock = MockTestBackendHandler::new();
+        mock.expect_list_groups()
+            .with(eq(Some(GroupRequestFilter::Or(vec![
+                GroupRequestFilter::Not(Box::new(GroupRequestFilter::DisplayName(
+                    "group_2".to_string(),
+                ))),
+            ]))))
+            .times(1)
+            .return_once(|_| {
+                Err(crate::domain::error::DomainError::InternalError(
+                    "Error getting groups".to_string(),
+                ))
+            });
+        let mut ldap_handler = setup_bound_handler(mock).await;
+        let request = make_search_request(
+            "ou=groups,dc=example,dc=com",
+            LdapFilter::Or(vec![LdapFilter::Not(Box::new(LdapFilter::Equality(
+                "displayname".to_string(),
+                "group_2".to_string(),
+            )))]),
+            vec!["cn"],
+        );
+        assert_eq!(
+            ldap_handler.do_search(&request).await,
+            vec![make_search_error(
+                LdapResultCode::Other,
+                r#"Error while listing groups "ou=groups,dc=example,dc=com": Internal error: `Error getting groups`"#.to_string()
+            )]
+        );
+    }
+
+    #[tokio::test]
+    async fn test_search_groups_filter_error() {
+        let mut ldap_handler = setup_bound_handler(MockTestBackendHandler::new()).await;
+        let request = make_search_request(
+            "ou=groups,dc=example,dc=com",
+            LdapFilter::And(vec![LdapFilter::Equality(
+                "whatever".to_string(),
+                "group_1".to_string(),
+            )]),
+            vec!["cn"],
+        );
+        assert_eq!(
+            ldap_handler.do_search(&request).await,
+            vec![make_search_error(
+                LdapResultCode::UnwillingToPerform,
+                "Unsupported group filter: Unknown field: whatever".to_string()
+            )]
+        );
+    }
+
     #[tokio::test]
     async fn test_search_filters() {
         let mut mock = MockTestBackendHandler::new();
         mock.expect_list_users()
-            .with(eq(Some(UserRequestFilter::And(vec![UserRequestFilter::Or(vec![
+            .with(eq(Some(UserRequestFilter::And(vec![
+                UserRequestFilter::Or(vec![
                     UserRequestFilter::Not(Box::new(UserRequestFilter::Equality(
                         "user_id".to_string(),
                         "bob".to_string(),
@@ -1182,7 +1259,8 @@ mod tests {
                     UserRequestFilter::And(vec![]),
                     UserRequestFilter::And(vec![]),
                     UserRequestFilter::Not(Box::new(UserRequestFilter::And(vec![]))),
-            ])]))))
+                ]),
+            ]))))
             .times(1)
             .return_once(|_| Ok(vec![]));
         let mut ldap_handler = setup_bound_handler(mock).await;
@@ -1256,12 +1334,11 @@ mod tests {
     async fn test_search_filters_lowercase() {
         let mut mock = MockTestBackendHandler::new();
         mock.expect_list_users()
-            .with(eq(Some(UserRequestFilter::And(vec![UserRequestFilter::Or(vec![
+            .with(eq(Some(UserRequestFilter::And(vec![
-                UserRequestFilter::Not(Box::new(UserRequestFilter::Equality(
+                UserRequestFilter::Or(vec![UserRequestFilter::Not(Box::new(
-                    "first_name".to_string(),
+                    UserRequestFilter::Equality("first_name".to_string(), "bob".to_string()),
-                    "bob".to_string(),
+                ))]),
-                ))),
+            ]))))
-            ])]))))
             .times(1)
             .return_once(|_| {
                 Ok(vec![User {
@@ -1309,7 +1386,10 @@ mod tests {
                 ..Default::default()
             }])
         });
-        mock.expect_list_groups().times(1).return_once(|| {
+        mock.expect_list_groups()
+            .with(eq(Some(GroupRequestFilter::And(vec![]))))
+            .times(1)
+            .return_once(|_| {
                 Ok(vec![Group {
                     id: GroupId(1),
                     display_name: "group_1".to_string(),

server/src/infra/tcp_backend_handler.rs

@@ -36,7 +36,7 @@ mockall::mock! {
     #[async_trait]
     impl BackendHandler for TestTcpBackendHandler {
         async fn list_users(&self, filters: Option<UserRequestFilter>) -> Result<Vec<User>>;
-        async fn list_groups(&self) -> Result<Vec<Group>>;
+        async fn list_groups(&self, filters: Option<GroupRequestFilter>) -> Result<Vec<Group>>;
         async fn get_user_details(&self, user_id: &str) -> Result<User>;
         async fn get_group_details(&self, group_id: GroupId) -> Result<GroupIdAndName>;
         async fn get_user_groups(&self, user: &str) -> Result<HashSet<GroupIdAndName>>;