remove diag.Backend from TestBackend

Author: decibelcooper

backend/redis/expire_test.go

@@ -51,7 +51,8 @@ func Test_AutoExpiration(t *testing.T) {
 	_, err = b.GetWorkflowInstanceState(ctx, wfi)
 	require.ErrorIs(t, err, backend.ErrInstanceNotFound)
 
-	insts, err := b.GetWorkflowInstances(ctx, "", "", 1)
+	// Check that the instance is gone from the list of instances
+	insts, err := b.(*redisBackend).GetWorkflowInstances(ctx, "", "", 1)
 	require.NoError(t, err)
 	assert.Len(t, insts, 0)
 

backend/test/backend.go

@@ -5,12 +5,10 @@ import (
 
 	"github.com/cschleiden/go-workflows/backend"
 	"github.com/cschleiden/go-workflows/backend/history"
-	"github.com/cschleiden/go-workflows/diag"
 )
 
 type TestBackend interface {
 	backend.Backend
-	diag.Backend
 
 	GetFutureEvents(ctx context.Context) ([]*history.Event, error)
 }