Add integration tests for 'query_unpaged' and 'execute_unpaged' APIs

Author: vponomaryov

scylla/tests/integration/query_result.rs

@@ -1,10 +1,11 @@
 use assert_matches::assert_matches;
 use futures::TryStreamExt;
-use scylla::errors::PagerExecutionError;
+use scylla::errors::{ExecutionError, PagerExecutionError};
 use scylla::{
     batch::{Batch, BatchType},
     client::session::Session,
     query::Query,
+    response::query_result::QueryResult,
 };
 use scylla_cql::frame::request::query::{PagingState, PagingStateResponse};
 
@@ -295,3 +296,166 @@ async fn execute_iter_serialization_error() {
         Err(PagerExecutionError::SerializationError(_))
     )
 }
+
+async fn create_session(table_name: &str) -> Session {
+    let session: Session = create_new_session_builder().build().await.unwrap();
+    let ks = unique_keyspace_name();
+
+    let cql_create_ks = format!(
+        "CREATE KEYSPACE IF NOT EXISTS {} WITH REPLICATION =\
+         {{'class' : 'NetworkTopologyStrategy', 'replication_factor' : 1}}",
+        ks
+    );
+    session.ddl(cql_create_ks).await.unwrap();
+    session.use_keyspace(ks, false).await.unwrap();
+
+    let cql_create_table = format!(
+        "CREATE TABLE IF NOT EXISTS {} (id int PRIMARY KEY, val int)",
+        table_name,
+    );
+    session.ddl(cql_create_table).await.unwrap();
+
+    session
+}
+
+async fn check_query_unpaged(insert_num: u64, use_prepared_statements: bool) {
+    let table_name = if use_prepared_statements {
+        "execute_unpaged"
+    } else {
+        "query_unpaged"
+    };
+    let session: Session = create_session(table_name).await;
+
+    for i in 0..insert_num {
+        if use_prepared_statements {
+            let prepared_statement = session
+                .prepare(format!("INSERT INTO {}(id, val) VALUES (?, ?)", table_name))
+                .await
+                .unwrap();
+            session
+                .execute_unpaged(&prepared_statement, &vec![i as i32, i as i32])
+                .await
+                .unwrap();
+        } else {
+            let cql = format!("INSERT INTO {}(id, val) VALUES ({}, {})", table_name, i, i);
+            session.query_unpaged(cql, &[]).await.unwrap();
+        }
+    }
+
+    let query_result: QueryResult;
+    if use_prepared_statements {
+        let prepared_statement = session
+            .prepare(format!("SELECT * FROM {}", table_name))
+            .await
+            .unwrap();
+        query_result = session
+            .execute_unpaged(&prepared_statement, &[])
+            .await
+            .unwrap();
+    } else {
+        let select_query = Query::new(format!("SELECT * FROM {}", table_name)).with_page_size(5);
+        query_result = session.query_unpaged(select_query, &[]).await.unwrap();
+    }
+    let rows = query_result.into_rows_result().unwrap();
+
+    // NOTE: check rows number using 'rows_num()' method.
+    assert_eq!(rows.rows_num(), insert_num as usize);
+
+    // NOTE: check actual rows number.
+    let actual_rows = rows
+        .rows::<(i32, i32)>()
+        .unwrap()
+        .collect::<Result<Vec<_>, _>>()
+        .unwrap();
+    assert_eq!(actual_rows.len(), insert_num as usize);
+}
+
+async fn unpaged_error(use_prepared_statements: bool) {
+    let table_name = if use_prepared_statements {
+        "execute_unpaged"
+    } else {
+        "query_unpaged"
+    };
+    let session: Session = create_session(table_name).await;
+
+    let query_result: Result<QueryResult, ExecutionError>;
+    if use_prepared_statements {
+        let prepared_statement = session
+            .prepare(format!("SELECT * FROM {}", table_name))
+            .await
+            .unwrap();
+        // NOTE: drop table to make the main query return error
+        session
+            .ddl(format!("DROP TABLE IF EXISTS {}", table_name))
+            .await
+            .unwrap();
+        query_result = session.execute_unpaged(&prepared_statement, &[]).await;
+    } else {
+        let select_query = Query::new(format!("SELECT * FROM fake{}", table_name));
+        query_result = session.query_unpaged(select_query, &[]).await;
+    }
+    match query_result {
+        Ok(_) => panic!("Unexpected success"),
+        Err(err) => println!("Table not found as expected: {:?}", err),
+    }
+}
+
+#[tokio::test]
+async fn test_query_unpaged_error() {
+    unpaged_error(false).await
+}
+
+#[tokio::test]
+async fn test_execute_unpaged_error() {
+    unpaged_error(true).await
+}
+
+#[tokio::test]
+async fn test_query_unpaged_no_rows() {
+    check_query_unpaged(0, false).await;
+}
+
+#[tokio::test]
+async fn test_query_unpaged_one_row() {
+    check_query_unpaged(1, false).await;
+}
+
+#[tokio::test]
+async fn test_query_unpaged_ten_rows() {
+    check_query_unpaged(10, false).await;
+}
+
+#[tokio::test]
+async fn test_query_unpaged_hundred_rows() {
+    check_query_unpaged(100, false).await;
+}
+
+#[tokio::test]
+async fn test_query_unpaged_thousand_rows() {
+    check_query_unpaged(1000, false).await;
+}
+
+#[tokio::test]
+async fn test_execute_unpaged_no_rows() {
+    check_query_unpaged(0, true).await;
+}
+
+#[tokio::test]
+async fn test_execute_unpaged_one_row() {
+    check_query_unpaged(1, true).await;
+}
+
+#[tokio::test]
+async fn test_execute_unpaged_ten_rows() {
+    check_query_unpaged(10, true).await;
+}
+
+#[tokio::test]
+async fn test_execute_unpaged_hundred_rows() {
+    check_query_unpaged(100, true).await;
+}
+
+#[tokio::test]
+async fn test_execute_unpaged_thousand_rows() {
+    check_query_unpaged(1000, true).await;
+}