sqlx/tests/mssql/describe.rs
Ryan Leckey 8d188c5f1a feat: expose column information on Row
- add database-specific Column types: MySqlColumn, PgColumn, etc.
 - add Row::columns() -> &[DB::Column]
 - add Row::column(I) and Row::try_column(I)
2020-07-05 03:48:36 -07:00

42 lines
1.2 KiB
Rust

use sqlx::mssql::Mssql;
use sqlx::{Column, Executor, TypeInfo};
use sqlx_test::new;
#[sqlx_macros::test]
async fn it_describes_simple() -> anyhow::Result<()> {
let mut conn = new::<Mssql>().await?;
let d = conn.describe("SELECT * FROM tweet").await?;
assert_eq!(d.column(0).name(), "id");
assert_eq!(d.column(1).name(), "text");
assert_eq!(d.column(2).name(), "is_sent");
assert_eq!(d.column(3).name(), "owner_id");
assert_eq!(d.nullable(0), Some(false));
assert_eq!(d.nullable(1), Some(false));
assert_eq!(d.nullable(2), Some(false));
assert_eq!(d.nullable(3), Some(true));
assert_eq!(d.column(0).type_info().name(), "BIGINT");
assert_eq!(d.column(1).type_info().name(), "NVARCHAR");
assert_eq!(d.column(2).type_info().name(), "TINYINT");
assert_eq!(d.column(3).type_info().name(), "BIGINT");
Ok(())
}
#[sqlx_macros::test]
async fn it_describes_with_params() -> anyhow::Result<()> {
let mut conn = new::<Mssql>().await?;
let d = conn
.describe("SELECT text FROM tweet WHERE id = @p1")
.await?;
assert_eq!(d.column(0).name(), "text");
assert_eq!(d.nullable(0), Some(false));
Ok(())
}