private MigrationDefinition[] CalculateMigrationsToExecute()
{
ExistMigrations existMigrations = LoadExistMigrations();
var requiredMigrationNames = new HashSet <string>(
requiredMigrations.Select(x => x.Name));
ExistMigrationInfo[] divergedMigrations =
existMigrations
.Where(x => !requiredMigrationNames.Contains(x.Name))
.ToArray();
if (divergedMigrations.Length > 0)
{
string errMsg = "The database has applied migrations that do not exist in the required migrations.";
throw new MigrationDivergedException(errMsg, divergedMigrations);
}
var existMigrationNames = new HashSet <string>(
existMigrations.Select(x => x.Name));
MigrationDefinition[] migrationsToExecute =
requiredMigrations
.Where(x => !existMigrationNames.Contains(x.Name))
.ToArray();
return(migrationsToExecute);
}
public MigratorUnderTest(
CouchDBContextImpl context,
RequiredMigrations requiredMigrations,
ExistMigrations existMigrations)
: base(context, requiredMigrations)
{
this.existMigrations = existMigrations;
}
public void NoMigrationToExecute()
{
var requiredMigrations = new RequiredMigrations();
requiredMigrations.Add(new MigrationMock("001Migration", MigrationExcpectation.NotToRun));
var existMigrations = new ExistMigrations();
existMigrations.Add(new ExistMigrationInfo("001Migration"));
var context = new CouchDBContextImpl(null);
var subject = new MigratorUnderTest(context, requiredMigrations, existMigrations);
subject.Migrate();
EnsureExpectedMigrationRan(requiredMigrations);
}
protected virtual ExistMigrations LoadExistMigrations()
{
ExistMigrations existMigrations = new ExistMigrations();
migrationsDoc = context.ClientAdaper.GetDocument(MigrationsDocumentId);
if (migrationsDoc == null)
{
migrationsDoc = CreateEmptyMigrationsDoc();
}
JArray appliedArray = migrationsDoc.Value <JArray>(AppliedMigrationField);
foreach (JToken appliedMigrationObj in appliedArray)
{
string migrationName = appliedMigrationObj.Value <string>(MigrationInfoNameField);
existMigrations.Add(new ExistMigrationInfo(migrationName));
}
return(existMigrations);
}