Trait TestSupport
pub trait TestSupport: Database {
// Required methods
fn test_context(
args: &TestArgs,
) -> Pin<Box<dyn Future<Output = Result<TestContext<Self>, Error>> + Send + '_>>;
fn cleanup_test(
db_name: &str,
) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + '_>>;
fn cleanup_test_dbs( ) -> Pin<Box<dyn Future<Output = Result<Option<usize>, Error>> + Send>>;
fn snapshot(
conn: &mut Self::Connection,
) -> Pin<Box<dyn Future<Output = Result<FixtureSnapshot<Self>, Error>> + Send + '_>>;
// Provided method
fn db_name(args: &TestArgs) -> String { ... }
}Required Methods§
fn test_context(
args: &TestArgs,
) -> Pin<Box<dyn Future<Output = Result<TestContext<Self>, Error>> + Send + '_>>
fn test_context( args: &TestArgs, ) -> Pin<Box<dyn Future<Output = Result<TestContext<Self>, Error>> + Send + '_>>
Get parameters to construct a Pool suitable for testing.
This Pool instance will behave somewhat specially:
- all handles share a single global semaphore to avoid exceeding the connection limit on the database server.
- each invocation results in a different temporary database.
The implementation may require DATABASE_URL to be set in order to manage databases.
The user credentials it contains must have the privilege to create and drop databases.
fn cleanup_test( db_name: &str, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + '_>>
fn cleanup_test_dbs() -> Pin<Box<dyn Future<Output = Result<Option<usize>, Error>> + Send>>
fn cleanup_test_dbs() -> Pin<Box<dyn Future<Output = Result<Option<usize>, Error>> + Send>>
Cleanup any test databases that are no longer in-use.
Returns a count of the databases deleted, if possible.
The implementation may require DATABASE_URL to be set in order to manage databases.
The user credentials it contains must have the privilege to create and drop databases.
fn snapshot(
conn: &mut Self::Connection,
) -> Pin<Box<dyn Future<Output = Result<FixtureSnapshot<Self>, Error>> + Send + '_>>
fn snapshot( conn: &mut Self::Connection, ) -> Pin<Box<dyn Future<Output = Result<FixtureSnapshot<Self>, Error>> + Send + '_>>
Take a snapshot of the current state of the database (data only).
This snapshot can then be used to generate test fixtures.
Provided Methods§
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.