Struct TestMigrationSource 

pub struct TestMigrationSource { /* private fields */ }

In-memory migration source for testing

Provides a simple implementation of MigrationSource that stores migrations in memory. Useful for testing migration-related functionality without filesystem or database dependencies.

Examples

// #[tokio::test]
// async fn test_source() {
let mut source = TestMigrationSource::new();
source.add_migration(Migration::new("0001_initial", "polls"));

let migrations = source.all_migrations().await.unwrap();
assert_eq!(migrations.len(), 1);
// }

Implementations

impl TestMigrationSource

pub fn new() -> Self

Create a new empty TestMigrationSource

pub fn with_migrations(migrations: Vec<Migration>) -> Self

Create a TestMigrationSource with initial migrations

pub fn add_migration(&mut self, migration: Migration)

Add a migration to the source

pub fn clear(&mut self)

Clear all migrations from the source

pub fn len(&self) -> usize

Get the number of migrations

pub fn is_empty(&self) -> bool

Check if the source is empty

Trait Implementations

impl Default for TestMigrationSource

fn default() -> Self

Returns the “default value” for a type.

impl MigrationSource for TestMigrationSource

fn all_migrations<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<Migration>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Returns all migrations from this source

fn migrations_for_app<'life0, 'life1, 'async_trait>( &'life0 self, app_label: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Vec<Migration>, MigrationError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Returns migrations for a specific app

fn get_migration<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, app_label: &'life1 str, name: &'life2 str, ) -> Pin<Box<dyn Future<Output = Result<Migration, MigrationError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, Self: 'async_trait,

Returns a specific migration by app and name