sea_orm/database/
mock.rs

1use crate::{
2    DatabaseConnection, DatabaseConnectionType, DbBackend, EntityTrait, ExecResult,
3    ExecResultHolder, Iden, IdenStatic, Iterable, MockDatabaseConnection, MockDatabaseTrait,
4    ModelTrait, QueryResult, QueryResultRow, SelectA, SelectB, Statement, error::*,
5};
6use sea_query::{Value, ValueType, Values};
7use std::{collections::BTreeMap, sync::Arc};
8use tracing::instrument;
9
10/// Defines a Mock database suitable for testing
11#[derive(Debug)]
12pub struct MockDatabase {
13    db_backend: DbBackend,
14    transaction: Option<OpenTransaction>,
15    transaction_log: Vec<Transaction>,
16    exec_results: Vec<Result<MockExecResult, DbErr>>,
17    query_results: Vec<Result<Vec<MockRow>, DbErr>>,
18}
19
20/// Defines the results obtained from a [MockDatabase]
21#[derive(Clone, Debug, Default)]
22pub struct MockExecResult {
23    /// The last inserted id on auto-increment
24    pub last_insert_id: u64,
25    /// The number of rows affected by the database operation
26    pub rows_affected: u64,
27}
28
29/// Defines the structure of a test Row for the [MockDatabase]
30/// which is just a [BTreeMap]<[String], [Value]>
31#[derive(Clone, Debug)]
32pub struct MockRow {
33    /// The values of the single row
34    pub(crate) values: BTreeMap<String, Value>,
35}
36
37/// A trait to get a [MockRow] from a type useful for testing in the [MockDatabase]
38pub trait IntoMockRow {
39    /// The method to perform this operation
40    fn into_mock_row(self) -> MockRow;
41}
42
43/// Defines a transaction that is has not been committed
44#[derive(Debug)]
45pub struct OpenTransaction {
46    stmts: Vec<Statement>,
47    transaction_depth: usize,
48}
49
50/// Defines a database transaction as it holds a Vec<[Statement]>
51#[derive(Debug, Clone, PartialEq)]
52pub struct Transaction {
53    stmts: Vec<Statement>,
54}
55
56impl MockDatabase {
57    /// Instantiate a mock database with a [DbBackend] to simulate real
58    /// world SQL databases
59    pub fn new(db_backend: DbBackend) -> Self {
60        Self {
61            db_backend,
62            transaction: None,
63            transaction_log: Vec::new(),
64            exec_results: Vec::new(),
65            query_results: Vec::new(),
66        }
67    }
68
69    /// Create a database connection
70    pub fn into_connection(self) -> DatabaseConnection {
71        DatabaseConnectionType::MockDatabaseConnection(Arc::new(MockDatabaseConnection::new(self)))
72            .into()
73    }
74
75    /// Add some [MockExecResult]s to `exec_results`
76    pub fn append_exec_results<I>(mut self, vec: I) -> Self
77    where
78        I: IntoIterator<Item = MockExecResult>,
79    {
80        self.exec_results.extend(vec.into_iter().map(Result::Ok));
81        self
82    }
83
84    /// Add some Values to `query_results`
85    pub fn append_query_results<T, I, II>(mut self, vec: II) -> Self
86    where
87        T: IntoMockRow,
88        I: IntoIterator<Item = T>,
89        II: IntoIterator<Item = I>,
90    {
91        for row in vec.into_iter() {
92            let row = row.into_iter().map(|vec| Ok(vec.into_mock_row())).collect();
93            self.query_results.push(row);
94        }
95        self
96    }
97
98    /// Add some [DbErr]s to `exec_results`
99    pub fn append_exec_errors<I>(mut self, vec: I) -> Self
100    where
101        I: IntoIterator<Item = DbErr>,
102    {
103        self.exec_results.extend(vec.into_iter().map(Result::Err));
104        self
105    }
106
107    /// Add some [DbErr]s to `query_results`
108    pub fn append_query_errors<I>(mut self, vec: I) -> Self
109    where
110        I: IntoIterator<Item = DbErr>,
111    {
112        self.query_results.extend(vec.into_iter().map(Result::Err));
113        self
114    }
115}
116
117impl MockDatabaseTrait for MockDatabase {
118    #[instrument(level = "trace")]
119    fn execute(&mut self, counter: usize, statement: Statement) -> Result<ExecResult, DbErr> {
120        if let Some(transaction) = &mut self.transaction {
121            transaction.push(statement);
122        } else {
123            self.transaction_log.push(Transaction::one(statement));
124        }
125        if counter < self.exec_results.len() {
126            match std::mem::replace(
127                &mut self.exec_results[counter],
128                Err(exec_err("this value has been consumed already")),
129            ) {
130                Ok(result) => Ok(ExecResult {
131                    result: ExecResultHolder::Mock(result),
132                }),
133                Err(err) => Err(err),
134            }
135        } else {
136            Err(exec_err("`exec_results` buffer is empty"))
137        }
138    }
139
140    #[instrument(level = "trace")]
141    fn query(&mut self, counter: usize, statement: Statement) -> Result<Vec<QueryResult>, DbErr> {
142        if let Some(transaction) = &mut self.transaction {
143            transaction.push(statement);
144        } else {
145            self.transaction_log.push(Transaction::one(statement));
146        }
147        if counter < self.query_results.len() {
148            match std::mem::replace(
149                &mut self.query_results[counter],
150                Err(query_err("this value has been consumed already")),
151            ) {
152                Ok(result) => Ok(result
153                    .into_iter()
154                    .map(|row| QueryResult {
155                        row: QueryResultRow::Mock(row),
156                    })
157                    .collect()),
158                Err(err) => Err(err),
159            }
160        } else {
161            Err(query_err("`query_results` buffer is empty."))
162        }
163    }
164
165    #[instrument(level = "trace")]
166    fn begin(&mut self) {
167        match self.transaction.as_mut() {
168            Some(transaction) => transaction.begin_nested(self.db_backend),
169            None => self.transaction = Some(OpenTransaction::init()),
170        }
171    }
172
173    #[instrument(level = "trace")]
174    fn commit(&mut self) {
175        match self.transaction.as_mut() {
176            Some(transaction) => {
177                if transaction.commit(self.db_backend) {
178                    if let Some(transaction) = self.transaction.take() {
179                        self.transaction_log.push(transaction.into_transaction());
180                    }
181                }
182            }
183            None => panic!("There is no open transaction to commit"),
184        }
185    }
186
187    #[instrument(level = "trace")]
188    fn rollback(&mut self) {
189        match self.transaction.as_mut() {
190            Some(transaction) => {
191                if transaction.rollback(self.db_backend) {
192                    if let Some(transaction) = self.transaction.take() {
193                        self.transaction_log.push(transaction.into_transaction());
194                    }
195                }
196            }
197            None => panic!("There is no open transaction to rollback"),
198        }
199    }
200
201    fn drain_transaction_log(&mut self) -> Vec<Transaction> {
202        std::mem::take(&mut self.transaction_log)
203    }
204
205    fn get_database_backend(&self) -> DbBackend {
206        self.db_backend
207    }
208
209    fn ping(&self) -> Result<(), DbErr> {
210        Ok(())
211    }
212}
213
214impl MockRow {
215    /// Get a value from the [MockRow]
216    pub fn try_get<T, I: crate::ColIdx>(&self, index: I) -> Result<T, DbErr>
217    where
218        T: ValueType,
219    {
220        if let Some(index) = index.as_str() {
221            T::try_from(
222                self.values
223                    .get(index)
224                    .ok_or_else(|| query_err(format!("No column for ColIdx {index:?}")))?
225                    .clone(),
226            )
227            .map_err(type_err)
228        } else if let Some(index) = index.as_usize() {
229            let (_, value) = self
230                .values
231                .iter()
232                .nth(*index)
233                .ok_or_else(|| query_err(format!("Column at index {index} not found")))?;
234            T::try_from(value.clone()).map_err(type_err)
235        } else {
236            unreachable!("Missing ColIdx implementation for MockRow");
237        }
238    }
239
240    /// An iterator over the keys and values of a mock row
241    pub fn into_column_value_tuples(self) -> impl Iterator<Item = (String, Value)> {
242        self.values.into_iter()
243    }
244}
245
246impl IntoMockRow for MockRow {
247    fn into_mock_row(self) -> MockRow {
248        self
249    }
250}
251
252impl<M> IntoMockRow for M
253where
254    M: ModelTrait,
255{
256    fn into_mock_row(self) -> MockRow {
257        let mut values = BTreeMap::new();
258        for col in <<M::Entity as EntityTrait>::Column>::iter() {
259            values.insert(col.to_string(), self.get(col));
260        }
261        MockRow { values }
262    }
263}
264
265impl<M, N> IntoMockRow for (M, N)
266where
267    M: ModelTrait,
268    N: ModelTrait,
269{
270    fn into_mock_row(self) -> MockRow {
271        let mut mapped_join = BTreeMap::new();
272
273        for column in <<M as ModelTrait>::Entity as EntityTrait>::Column::iter() {
274            mapped_join.insert(
275                format!("{}{}", SelectA.as_str(), column.as_str()),
276                self.0.get(column),
277            );
278        }
279        for column in <<N as ModelTrait>::Entity as EntityTrait>::Column::iter() {
280            mapped_join.insert(
281                format!("{}{}", SelectB.as_str(), column.as_str()),
282                self.1.get(column),
283            );
284        }
285
286        mapped_join.into_mock_row()
287    }
288}
289
290impl<M, N> IntoMockRow for (M, Option<N>)
291where
292    M: ModelTrait,
293    N: ModelTrait,
294{
295    fn into_mock_row(self) -> MockRow {
296        let mut mapped_join = BTreeMap::new();
297
298        for column in <<M as ModelTrait>::Entity as EntityTrait>::Column::iter() {
299            mapped_join.insert(
300                format!("{}{}", SelectA.as_str(), column.as_str()),
301                self.0.get(column),
302            );
303        }
304        if let Some(b_entity) = self.1 {
305            for column in <<N as ModelTrait>::Entity as EntityTrait>::Column::iter() {
306                mapped_join.insert(
307                    format!("{}{}", SelectB.as_str(), column.as_str()),
308                    b_entity.get(column),
309                );
310            }
311        }
312
313        mapped_join.into_mock_row()
314    }
315}
316
317impl<T> IntoMockRow for BTreeMap<T, Value>
318where
319    T: Into<String>,
320{
321    fn into_mock_row(self) -> MockRow {
322        MockRow {
323            values: self.into_iter().map(|(k, v)| (k.into(), v)).collect(),
324        }
325    }
326}
327
328impl Transaction {
329    /// Get the [Value]s from s raw SQL statement depending on the [DatabaseBackend](crate::DatabaseBackend)
330    pub fn from_sql_and_values<I, T>(db_backend: DbBackend, sql: T, values: I) -> Self
331    where
332        I: IntoIterator<Item = Value>,
333        T: Into<String>,
334    {
335        Self::one(Statement::from_string_values_tuple(
336            db_backend,
337            (sql, Values(values.into_iter().collect())),
338        ))
339    }
340
341    /// Create a Transaction with one statement
342    pub fn one(stmt: Statement) -> Self {
343        Self { stmts: vec![stmt] }
344    }
345
346    /// Create a Transaction with many statements
347    pub fn many<I>(stmts: I) -> Self
348    where
349        I: IntoIterator<Item = Statement>,
350    {
351        Self {
352            stmts: stmts.into_iter().collect(),
353        }
354    }
355
356    /// Wrap each Statement as a single-statement Transaction
357    pub fn wrap<I>(stmts: I) -> Vec<Self>
358    where
359        I: IntoIterator<Item = Statement>,
360    {
361        stmts.into_iter().map(Self::one).collect()
362    }
363
364    /// Get the list of statements
365    pub fn statements(&self) -> &[Statement] {
366        &self.stmts
367    }
368}
369
370impl OpenTransaction {
371    fn init() -> Self {
372        Self {
373            stmts: vec![Statement::from_string(DbBackend::Postgres, "BEGIN")],
374            transaction_depth: 0,
375        }
376    }
377
378    fn begin_nested(&mut self, db_backend: DbBackend) {
379        self.transaction_depth += 1;
380        self.push(Statement::from_string(
381            db_backend,
382            format!("SAVEPOINT savepoint_{}", self.transaction_depth),
383        ));
384    }
385
386    fn commit(&mut self, db_backend: DbBackend) -> bool {
387        if self.transaction_depth == 0 {
388            self.push(Statement::from_string(db_backend, "COMMIT"));
389            true
390        } else {
391            self.push(Statement::from_string(
392                db_backend,
393                format!("RELEASE SAVEPOINT savepoint_{}", self.transaction_depth),
394            ));
395            self.transaction_depth -= 1;
396            false
397        }
398    }
399
400    fn rollback(&mut self, db_backend: DbBackend) -> bool {
401        if self.transaction_depth == 0 {
402            self.push(Statement::from_string(db_backend, "ROLLBACK"));
403            true
404        } else {
405            self.push(Statement::from_string(
406                db_backend,
407                format!("ROLLBACK TO SAVEPOINT savepoint_{}", self.transaction_depth),
408            ));
409            self.transaction_depth -= 1;
410            false
411        }
412    }
413
414    fn push(&mut self, stmt: Statement) {
415        self.stmts.push(stmt);
416    }
417
418    fn into_transaction(self) -> Transaction {
419        match self.transaction_depth {
420            0 => Transaction { stmts: self.stmts },
421            _ => panic!("There is uncommitted nested transaction"),
422        }
423    }
424}
425
426#[cfg(test)]
427#[cfg(feature = "mock")]
428mod tests {
429    #[cfg(feature = "sync")]
430    use crate::util::StreamShim;
431    use crate::{
432        DbBackend, DbErr, IntoMockRow, MockDatabase, Statement, Transaction, TransactionError,
433        TransactionTrait, entity::*, error::*, tests_cfg::*,
434    };
435    use futures_util::{TryStreamExt, stream::TryNext};
436    use pretty_assertions::assert_eq;
437
438    #[derive(Debug, PartialEq, Eq)]
439    pub struct MyErr(String);
440
441    impl std::error::Error for MyErr {}
442
443    impl std::fmt::Display for MyErr {
444        fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
445            write!(f, "{}", self.0.as_str())
446        }
447    }
448
449    #[smol_potat::test]
450    async fn test_transaction_1() {
451        let db = MockDatabase::new(DbBackend::Postgres).into_connection();
452
453        db.transaction::<_, (), DbErr>(|txn| {
454            Box::pin(async move {
455                let _1 = cake::Entity::find().one(txn).await;
456                let _2 = fruit::Entity::find().all(txn).await;
457
458                Ok(())
459            })
460        })
461        .await
462        .unwrap();
463
464        let _ = cake::Entity::find().all(&db).await;
465
466        assert_eq!(
467            db.into_transaction_log(),
468            [
469                Transaction::many([
470                    Statement::from_string(DbBackend::Postgres, "BEGIN"),
471                    Statement::from_sql_and_values(
472                        DbBackend::Postgres,
473                        r#"SELECT "cake"."id", "cake"."name" FROM "cake" LIMIT $1"#,
474                        [1u64.into()]
475                    ),
476                    Statement::from_sql_and_values(
477                        DbBackend::Postgres,
478                        r#"SELECT "fruit"."id", "fruit"."name", "fruit"."cake_id" FROM "fruit""#,
479                        []
480                    ),
481                    Statement::from_string(DbBackend::Postgres, "COMMIT"),
482                ]),
483                Transaction::from_sql_and_values(
484                    DbBackend::Postgres,
485                    r#"SELECT "cake"."id", "cake"."name" FROM "cake""#,
486                    []
487                ),
488            ]
489        );
490    }
491
492    #[smol_potat::test]
493    async fn test_transaction_2() {
494        let db = MockDatabase::new(DbBackend::Postgres).into_connection();
495
496        let result = db
497            .transaction::<_, (), MyErr>(|txn| {
498                Box::pin(async move {
499                    let _ = cake::Entity::find().one(txn).await;
500                    Err(MyErr("test".to_owned()))
501                })
502            })
503            .await;
504
505        match result {
506            Err(TransactionError::Transaction(err)) => {
507                assert_eq!(err, MyErr("test".to_owned()))
508            }
509            _ => unreachable!(),
510        }
511
512        assert_eq!(
513            db.into_transaction_log(),
514            [Transaction::many([
515                Statement::from_string(DbBackend::Postgres, "BEGIN"),
516                Statement::from_sql_and_values(
517                    DbBackend::Postgres,
518                    r#"SELECT "cake"."id", "cake"."name" FROM "cake" LIMIT $1"#,
519                    [1u64.into()]
520                ),
521                Statement::from_string(DbBackend::Postgres, "ROLLBACK"),
522            ])]
523        );
524    }
525
526    #[smol_potat::test]
527    async fn test_nested_transaction_1() {
528        let db = MockDatabase::new(DbBackend::Postgres).into_connection();
529
530        db.transaction::<_, (), DbErr>(|txn| {
531            Box::pin(async move {
532                let _ = cake::Entity::find().one(txn).await;
533
534                txn.transaction::<_, (), DbErr>(|txn| {
535                    Box::pin(async move {
536                        let _ = fruit::Entity::find().all(txn).await;
537
538                        Ok(())
539                    })
540                })
541                .await
542                .unwrap();
543
544                Ok(())
545            })
546        })
547        .await
548        .unwrap();
549
550        assert_eq!(
551            db.into_transaction_log(),
552            [Transaction::many([
553                Statement::from_string(DbBackend::Postgres, "BEGIN"),
554                Statement::from_sql_and_values(
555                    DbBackend::Postgres,
556                    r#"SELECT "cake"."id", "cake"."name" FROM "cake" LIMIT $1"#,
557                    [1u64.into()]
558                ),
559                Statement::from_string(DbBackend::Postgres, "SAVEPOINT savepoint_1"),
560                Statement::from_sql_and_values(
561                    DbBackend::Postgres,
562                    r#"SELECT "fruit"."id", "fruit"."name", "fruit"."cake_id" FROM "fruit""#,
563                    []
564                ),
565                Statement::from_string(DbBackend::Postgres, "RELEASE SAVEPOINT savepoint_1"),
566                Statement::from_string(DbBackend::Postgres, "COMMIT"),
567            ]),]
568        );
569    }
570
571    #[smol_potat::test]
572    async fn test_nested_transaction_2() {
573        let db = MockDatabase::new(DbBackend::Postgres).into_connection();
574
575        db.transaction::<_, (), DbErr>(|txn| {
576            Box::pin(async move {
577                let _ = cake::Entity::find().one(txn).await;
578
579                txn.transaction::<_, (), DbErr>(|txn| {
580                    Box::pin(async move {
581                        let _ = fruit::Entity::find().all(txn).await;
582
583                        txn.transaction::<_, (), DbErr>(|txn| {
584                            Box::pin(async move {
585                                let _ = cake::Entity::find().all(txn).await;
586
587                                Ok(())
588                            })
589                        })
590                        .await
591                        .unwrap();
592
593                        Ok(())
594                    })
595                })
596                .await
597                .unwrap();
598
599                Ok(())
600            })
601        })
602        .await
603        .unwrap();
604
605        assert_eq!(
606            db.into_transaction_log(),
607            [Transaction::many([
608                Statement::from_string(DbBackend::Postgres, "BEGIN"),
609                Statement::from_sql_and_values(
610                    DbBackend::Postgres,
611                    r#"SELECT "cake"."id", "cake"."name" FROM "cake" LIMIT $1"#,
612                    [1u64.into()]
613                ),
614                Statement::from_string(DbBackend::Postgres, "SAVEPOINT savepoint_1"),
615                Statement::from_sql_and_values(
616                    DbBackend::Postgres,
617                    r#"SELECT "fruit"."id", "fruit"."name", "fruit"."cake_id" FROM "fruit""#,
618                    []
619                ),
620                Statement::from_string(DbBackend::Postgres, "SAVEPOINT savepoint_2"),
621                Statement::from_sql_and_values(
622                    DbBackend::Postgres,
623                    r#"SELECT "cake"."id", "cake"."name" FROM "cake""#,
624                    []
625                ),
626                Statement::from_string(DbBackend::Postgres, "RELEASE SAVEPOINT savepoint_2"),
627                Statement::from_string(DbBackend::Postgres, "RELEASE SAVEPOINT savepoint_1"),
628                Statement::from_string(DbBackend::Postgres, "COMMIT"),
629            ]),]
630        );
631    }
632
633    #[smol_potat::test]
634    async fn test_stream_1() -> Result<(), DbErr> {
635        let apple = fruit::Model {
636            id: 1,
637            name: "Apple".to_owned(),
638            cake_id: Some(1),
639        };
640
641        let orange = fruit::Model {
642            id: 2,
643            name: "orange".to_owned(),
644            cake_id: None,
645        };
646
647        let db = MockDatabase::new(DbBackend::Postgres)
648            .append_query_results([[apple.clone(), orange.clone()]])
649            .into_connection();
650
651        let mut stream = fruit::Entity::find().stream(&db).await?;
652
653        assert_eq!(stream.try_next().await?, Some(apple));
654
655        assert_eq!(stream.try_next().await?, Some(orange));
656
657        assert_eq!(stream.try_next().await?, None);
658
659        Ok(())
660    }
661
662    #[smol_potat::test]
663    async fn test_stream_2() -> Result<(), DbErr> {
664        use fruit::Entity as Fruit;
665        let db = MockDatabase::new(DbBackend::Postgres)
666            .append_query_results([Vec::<fruit::Model>::new()])
667            .into_connection();
668
669        let mut stream = Fruit::find().stream(&db).await?;
670
671        while let Some(item) = stream.try_next().await? {
672            let _item: fruit::ActiveModel = item.into();
673        }
674
675        Ok(())
676    }
677
678    #[smol_potat::test]
679    async fn test_stream_in_transaction() -> Result<(), DbErr> {
680        let apple = fruit::Model {
681            id: 1,
682            name: "Apple".to_owned(),
683            cake_id: Some(1),
684        };
685
686        let orange = fruit::Model {
687            id: 2,
688            name: "orange".to_owned(),
689            cake_id: None,
690        };
691
692        let db = MockDatabase::new(DbBackend::Postgres)
693            .append_query_results([[apple.clone(), orange.clone()]])
694            .into_connection();
695
696        let txn = db.begin().await?;
697
698        if let Ok(mut stream) = fruit::Entity::find().stream(&txn).await {
699            assert_eq!(stream.try_next().await?, Some(apple));
700
701            assert_eq!(stream.try_next().await?, Some(orange));
702
703            assert_eq!(stream.try_next().await?, None);
704
705            // stream will be dropped end of scope
706        }
707
708        txn.commit().await?;
709
710        Ok(())
711    }
712
713    #[smol_potat::test]
714    async fn test_mocked_join() {
715        let row = (
716            cake::Model {
717                id: 1,
718                name: "Apple Cake".to_owned(),
719            },
720            fruit::Model {
721                id: 2,
722                name: "Apple".to_owned(),
723                cake_id: Some(1),
724            },
725        );
726        let mocked_row = row.into_mock_row();
727
728        let a_id = mocked_row.try_get::<i32, _>("A_id");
729        assert!(a_id.is_ok());
730        assert_eq!(1, a_id.unwrap());
731        let b_id = mocked_row.try_get::<i32, _>("B_id");
732        assert!(b_id.is_ok());
733        assert_eq!(2, b_id.unwrap());
734    }
735
736    #[smol_potat::test]
737    async fn test_find_also_related_1() -> Result<(), DbErr> {
738        let db = MockDatabase::new(DbBackend::Postgres)
739            .append_query_results([[(
740                cake::Model {
741                    id: 1,
742                    name: "Apple Cake".to_owned(),
743                },
744                fruit::Model {
745                    id: 2,
746                    name: "Apple".to_owned(),
747                    cake_id: Some(1),
748                },
749            )]])
750            .into_connection();
751
752        assert_eq!(
753            cake::Entity::find()
754                .find_also_related(fruit::Entity)
755                .all(&db)
756                .await?,
757            [(
758                cake::Model {
759                    id: 1,
760                    name: "Apple Cake".to_owned(),
761                },
762                Some(fruit::Model {
763                    id: 2,
764                    name: "Apple".to_owned(),
765                    cake_id: Some(1),
766                })
767            )]
768        );
769
770        assert_eq!(
771            db.into_transaction_log(),
772            [Transaction::from_sql_and_values(
773                DbBackend::Postgres,
774                r#"SELECT "cake"."id" AS "A_id", "cake"."name" AS "A_name", "fruit"."id" AS "B_id", "fruit"."name" AS "B_name", "fruit"."cake_id" AS "B_cake_id" FROM "cake" LEFT JOIN "fruit" ON "cake"."id" = "fruit"."cake_id""#,
775                []
776            ),]
777        );
778
779        Ok(())
780    }
781
782    #[cfg(feature = "postgres-array")]
783    #[smol_potat::test]
784    async fn test_postgres_array_1() -> Result<(), DbErr> {
785        mod collection {
786            use crate as sea_orm;
787            use crate::entity::prelude::*;
788
789            #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
790            #[sea_orm(table_name = "collection")]
791            pub struct Model {
792                #[sea_orm(primary_key)]
793                pub id: i32,
794                pub integers: Vec<i32>,
795                pub integers_opt: Option<Vec<i32>>,
796            }
797
798            #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
799            pub enum Relation {}
800
801            impl ActiveModelBehavior for ActiveModel {}
802        }
803
804        let db = MockDatabase::new(DbBackend::Postgres)
805            .append_query_results([[
806                collection::Model {
807                    id: 1,
808                    integers: vec![1, 2, 3],
809                    integers_opt: Some(vec![1, 2, 3]),
810                },
811                collection::Model {
812                    id: 2,
813                    integers: vec![],
814                    integers_opt: Some(vec![]),
815                },
816                collection::Model {
817                    id: 3,
818                    integers: vec![3, 1, 4],
819                    integers_opt: None,
820                },
821            ]])
822            .into_connection();
823
824        assert_eq!(
825            collection::Entity::find().all(&db).await?,
826            [
827                collection::Model {
828                    id: 1,
829                    integers: vec![1, 2, 3],
830                    integers_opt: Some(vec![1, 2, 3]),
831                },
832                collection::Model {
833                    id: 2,
834                    integers: vec![],
835                    integers_opt: Some(vec![]),
836                },
837                collection::Model {
838                    id: 3,
839                    integers: vec![3, 1, 4],
840                    integers_opt: None,
841                },
842            ]
843        );
844
845        assert_eq!(
846            db.into_transaction_log(),
847            [Transaction::from_sql_and_values(
848                DbBackend::Postgres,
849                r#"SELECT "collection"."id", "collection"."integers", "collection"."integers_opt" FROM "collection""#,
850                []
851            ),]
852        );
853
854        Ok(())
855    }
856
857    #[smol_potat::test]
858    async fn test_query_err() {
859        let db = MockDatabase::new(DbBackend::MySql)
860            .append_query_errors([query_err("this is a mock query error")])
861            .into_connection();
862
863        assert_eq!(
864            cake::Entity::find().all(&db).await,
865            Err(query_err("this is a mock query error"))
866        );
867    }
868
869    #[smol_potat::test]
870    async fn test_exec_err() {
871        let db = MockDatabase::new(DbBackend::MySql)
872            .append_exec_errors([exec_err("this is a mock exec error")])
873            .into_connection();
874
875        let model = cake::ActiveModel::new();
876
877        assert_eq!(
878            model.save(&db).await,
879            Err(exec_err("this is a mock exec error"))
880        );
881    }
882}
sea_orm/database/mock.rs

sea_orm/database/
mock.rs
