Relaxed constratint that method receiver has to be of Driver interface.

driver/gomethods/gomethods_migrator.go

@@ -8,7 +8,6 @@ import (
 	"os"
 	"path"
 	"bufio"
-	"github.com/dimag-jfrog/migrate/driver"
 	"github.com/dimag-jfrog/migrate/file"
 )
 
@@ -31,7 +30,7 @@ func (e *MethodInvocationFailedError) Error() string {
 
 
 type Migrator struct {
-	Driver driver.Driver
+	MigrationMethodsReceiver interface{}
 	RollbackOnFailure bool
 }
 
@@ -73,12 +72,12 @@ func (m *Migrator) Migrate(f file.File, pipe chan interface{}) error {
 }
 
 func (m *Migrator) IsValid(methodName string) bool {
-	return reflect.ValueOf(m.Driver).MethodByName(methodName).IsValid()
+	return reflect.ValueOf(m.MigrationMethodsReceiver).MethodByName(methodName).IsValid()
 }
 
 func (m *Migrator) Invoke(methodName string) error {
 	name := methodName
-	migrateMethod := reflect.ValueOf(m.Driver).MethodByName(name)
+	migrateMethod := reflect.ValueOf(m.MigrationMethodsReceiver).MethodByName(name)
 	if !migrateMethod.IsValid() {
 		return MissingMethodError(methodName)
 	}

driver/gomethods/gomethods_migrator_test.go

@@ -232,7 +232,7 @@ func TestMigrate(t *testing.T) {
 	for _, c := range cases {
 		migrator := Migrator{}
 		d := &FakeGoMethodsDriver{Migrator: migrator, InvokedMethods:[]string{}}
-		migrator.Driver = d
+		migrator.MigrationMethodsReceiver = d
 		migrator.RollbackOnFailure = c.expectRollback
 
 		pipe := pipep.New()

driver/gomethods/usage_examples/mongodb.go

@@ -16,7 +16,7 @@ type GoMethodsMongoDbDriver struct {
 }
 
 func (d *GoMethodsMongoDbDriver) Initialize(url string) error {
-	return d.DriverTemplate.Initialize(url, DB_NAME, gomethods.Migrator{Driver: d})
+	return d.DriverTemplate.Initialize(url, DB_NAME, gomethods.Migrator{MigrationMethodsReceiver: d})
 }
 
 func init() {

driver/gomethods/usage_examples/mongodb_test.go

@@ -68,6 +68,7 @@ func RunMigrationAndAssertResult(
 	if !reflect.DeepEqual(expected.Errors, errs) {
 		t.Fatalf("Migration '%s': FAILED\nexpected errors %v\nbut got %v", title, expected.Errors, errs)
 	}
+	t.Logf("Migration '%s': PASSED", title)
 }