kubetsu 0.4.0

distinguish value type of other struct
Documentation 
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use crate::Id;
use sqlx::postgres::{PgConnectOptions, PgPoolOptions};
use sqlx::{FromRow, PgPool};

async fn get_db_conn() -> Result<PgPool, sqlx::Error> {
    let connect_info = PgConnectOptions::new();
    let pool = PgPoolOptions::new()
        .connect_with(connect_info)
        .await
        .unwrap();
    Ok(pool)
}

#[derive(FromRow)]
struct FooI64 {
    id: Id<Self, i64>,
}

#[tokio::test]
async fn test_query_as_i64() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let foo: FooI64 = sqlx::query_as("SELECT 1::bigint as id")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(foo.id.inner, 1);
}

#[tokio::test]
async fn test_encode_i64() {
    let conn = get_db_conn().await.unwrap();

    let id: Id<FooI64, i64> = Id::new(1);

    let mut tx = conn.begin().await.unwrap();
    let got: i64 = sqlx::query_scalar("SELECT $1::bigint")
        .bind(&id)
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(got, 1);
}

#[derive(FromRow)]
struct FooI32 {
    id: Id<Self, i32>,
}

#[tokio::test]
async fn test_query_scalar_i32() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let id: Id<FooI32, i32> = sqlx::query_scalar("SELECT 1")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(id.inner, 1);
}
#[tokio::test]
async fn test_query_as_i32() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let foo: FooI32 = sqlx::query_as("SELECT 1 as id")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(foo.id.inner, 1);
}

#[tokio::test]
async fn test_encode_i32() {
    let conn = get_db_conn().await.unwrap();

    let id: Id<FooI32, i32> = Id::new(1);

    let mut tx = conn.begin().await.unwrap();
    let got: i32 = sqlx::query_scalar("SELECT $1::int")
        .bind(&id)
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(got, 1);
}

#[derive(FromRow)]
struct FooI16 {
    id: Id<Self, i16>,
}

#[tokio::test]
async fn test_query_scalar_i16() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let id: Id<FooI16, i16> = sqlx::query_scalar("SELECT 1::smallint")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(id.inner, 1);
}
#[tokio::test]
async fn test_query_as_i16() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let foo: FooI16 = sqlx::query_as("SELECT 1::smallint as id")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(foo.id.inner, 1);
}

#[tokio::test]
async fn test_encode_i16() {
    let conn = get_db_conn().await.unwrap();

    let id: Id<FooI16, i16> = Id::new(1);

    let mut tx = conn.begin().await.unwrap();
    let got: i16 = sqlx::query_scalar("SELECT $1::smallint")
        .bind(&id)
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(got, 1);
}

#[derive(FromRow)]
struct FooStr {
    id: Id<Self, String>,
}

#[tokio::test]
async fn test_query_scalar_str() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let id: Id<FooStr, String> = sqlx::query_scalar("SELECT '1'")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(id.inner, "1");
}
#[tokio::test]
async fn test_query_as_str() {
    let conn = get_db_conn().await.unwrap();
    let mut tx = conn.begin().await.unwrap();
    let foo: FooStr = sqlx::query_as("SELECT '1' as id")
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(foo.id.inner, "1");
}
#[tokio::test]
async fn test_encode_str() {
    let conn = get_db_conn().await.unwrap();

    let id: Id<FooStr, String> = Id::new("1".to_string());

    let mut tx = conn.begin().await.unwrap();
    let got: String = sqlx::query_scalar("SELECT $1::text")
        .bind(&id)
        .fetch_one(&mut *tx)
        .await
        .unwrap();

    assert_eq!(got, "1");
}