public VxSchemaChecksums GetChecksums()
{
log.print("GetChecksums\n");
VxSchemaChecksums sums = new VxSchemaChecksums();
foreach (string type in ProcedureTypes)
{
try
{
if (type == "Procedure")
{
// Set up self test
DbiExec("create procedure schemamatic_checksum_test " +
"as print 'hello' ");
}
GetProcChecksums(sums, type, 0);
if (type == "Procedure")
{
// Self-test the checksum feature. If mssql's checksum
// algorithm changes, we don't want to pretend our checksum
// list makes any sense!
string test_csum = "Procedure/schemamatic_checksum_test";
ulong got_csum = 0;
if (sums.ContainsKey(test_csum))
got_csum = sums[test_csum].checksums.First();
ulong want_csum = 0x173d6ee8;
if (want_csum != got_csum)
{
throw new Exception(String.Format(
"checksum_test_mismatch! {0} != {1}",
got_csum, want_csum));
}
sums.Remove(test_csum);
}
}
finally
{
if (type == "Procedure")
{
DbiExec("drop procedure schemamatic_checksum_test");
}
}
GetProcChecksums(sums, type, 1);
}
// Do tables separately
GetTableChecksums(sums);
// Do indexes separately
AddIndexChecksumsToTables(sums);
// Do XML schema collections separately (FIXME: only if SQL2005)
GetXmlSchemaChecksums(sums);
return sums;
}
public void TestApplySchemaDiff(ISchemaBackend backend)
{
log.print("In TestApplySchemaDiff({0})\n", backend.GetType().ToString());
SchemaCreator sc = new SchemaCreator(this);
sc.Create();
string msg2 = "Hello, world, this used to be Func1!";
string func1q2 = "create procedure Func1 as select '" + msg2 + "'\n";
VxSchema origschema = dbus.Get();
VxSchemaChecksums origsums = dbus.GetChecksums();
VxSchema newschema = new VxSchema(origschema);
VxSchemaChecksums newsums = new VxSchemaChecksums(origsums);
// Don't bother putting the data again if we're talking to dbus:
// we already snuck it in the back door.
if (backend != dbus)
backend.Put(origschema, origsums, VxPutOpts.None);
VxSchemaChecksums diffsums = new VxSchemaChecksums(newsums);
// Make some changes to create an interesting diff.
// Change the text and sums of Func1, schedule TestSchema for
// deletion, and act like Tab2 is new.
newschema["Procedure/Func1"].text = func1q2;
newsums.AddSum("Procedure/Func1", 123);
newsums.Remove("XMLSchema/TestSchema");
origsums.Remove("Table/Tab2");
WVASSERT(VxExec("drop table Tab2"));
VxSchemaDiff diff = new VxSchemaDiff(origsums, newsums);
using (IEnumerator<KeyValuePair<string,VxDiffType>> iter =
diff.GetEnumerator())
{
WVPASS(iter.MoveNext());
WVPASSEQ(iter.Current.Key, "XMLSchema/TestSchema");
WVPASSEQ((char)iter.Current.Value, (char)VxDiffType.Remove);
WVPASS(iter.MoveNext());
WVPASSEQ(iter.Current.Key, "Table/Tab2");
WVPASSEQ((char)iter.Current.Value, (char)VxDiffType.Add);
WVPASS(iter.MoveNext());
WVPASSEQ(iter.Current.Key, "Procedure/Func1");
WVPASSEQ((char)iter.Current.Value, (char)VxDiffType.Change);
WVFAIL(iter.MoveNext());
}
VxSchema diffschema = newschema.GetDiffElements(diff);
WVPASSEQ(diffschema["XMLSchema/TestSchema"].type, "XMLSchema");
WVPASSEQ(diffschema["XMLSchema/TestSchema"].name, "TestSchema");
WVPASSEQ(diffschema["XMLSchema/TestSchema"].text, "");
WVPASSEQ(diffschema["Table/Tab2"].type, "Table");
WVPASSEQ(diffschema["Table/Tab2"].name, "Tab2");
WVPASSEQ(diffschema["Table/Tab2"].text, sc.tab2sch);
WVPASSEQ(diffschema["Procedure/Func1"].type, "Procedure");
WVPASSEQ(diffschema["Procedure/Func1"].name, "Func1");
WVPASSEQ(diffschema["Procedure/Func1"].text, func1q2);
VxSchemaErrors errs = backend.Put(diffschema, diffsums, VxPutOpts.None);
WVPASSEQ(errs.Count, 0);
VxSchema updated = backend.Get(null);
WVASSERT(!updated.ContainsKey("XMLSchema/TestSchema"));
WVPASSEQ(updated["Table/Tab1"].text, newschema["Table/Tab1"].text);
WVPASSEQ(updated["Table/Tab2"].text, newschema["Table/Tab2"].text);
WVPASSEQ(updated["Procedure/Func1"].text,
newschema["Procedure/Func1"].text);
sc.Cleanup();
}
