func TestGet(t *testing.T) { defer leaktest.AfterTest(t)() emptyKeys := []roachpb.KeyValue{} someKeys := []roachpb.KeyValue{ plainKV("a", "vala"), plainKV("c", "valc"), plainKV("d", "vald"), } aVal := roachpb.MakeValueFromString("vala") bVal := roachpb.MakeValueFromString("valc") cVal := roachpb.MakeValueFromString("vald") testCases := []struct { values []roachpb.KeyValue key string value *roachpb.Value }{ {emptyKeys, "a", nil}, {emptyKeys, "b", nil}, {emptyKeys, "c", nil}, {emptyKeys, "d", nil}, {emptyKeys, "e", nil}, {someKeys, "", nil}, {someKeys, "b", nil}, {someKeys, "e", nil}, {someKeys, "a0", nil}, {someKeys, "a", &aVal}, {someKeys, "c", &bVal}, {someKeys, "d", &cVal}, } cfg := config.SystemConfig{} for tcNum, tc := range testCases { cfg.Values = tc.values if val := cfg.GetValue([]byte(tc.key)); !proto.Equal(val, tc.value) { t.Errorf("#%d: expected=%s, found=%s", tcNum, tc.value, val) } } }
func TestComputeSplits(t *testing.T) { defer leaktest.AfterTest(t)() const ( start = keys.MaxReservedDescID + 1 reservedStart = keys.MaxSystemConfigDescID + 1 ) schema := sqlbase.MakeMetadataSchema() // Real system tables only. baseSql := schema.GetInitialValues() // Real system tables plus some user stuff. allSql := append(schema.GetInitialValues(), descriptor(start), descriptor(start+1), descriptor(start+5)) sort.Sort(roachpb.KeyValueByKey(allSql)) allUserSplits := []uint32{start, start + 1, start + 2, start + 3, start + 4, start + 5} var allReservedSplits []uint32 for i := 0; i < schema.SystemDescriptorCount()-schema.SystemConfigDescriptorCount(); i++ { allReservedSplits = append(allReservedSplits, reservedStart+uint32(i)) } allSplits := append(allReservedSplits, allUserSplits...) testCases := []struct { values []roachpb.KeyValue start, end roachpb.RKey // Use ints in the testcase definitions, more readable. splits []uint32 }{ // No data. {nil, roachpb.RKeyMin, roachpb.RKeyMax, nil}, {nil, keys.MakeTablePrefix(start), roachpb.RKeyMax, nil}, {nil, keys.MakeTablePrefix(start), keys.MakeTablePrefix(start + 10), nil}, {nil, roachpb.RKeyMin, keys.MakeTablePrefix(start + 10), nil}, // Reserved descriptors. {baseSql, roachpb.RKeyMin, roachpb.RKeyMax, allReservedSplits}, {baseSql, keys.MakeTablePrefix(start), roachpb.RKeyMax, nil}, {baseSql, keys.MakeTablePrefix(start), keys.MakeTablePrefix(start + 10), nil}, {baseSql, roachpb.RKeyMin, keys.MakeTablePrefix(start + 10), allReservedSplits}, {baseSql, keys.MakeTablePrefix(reservedStart), roachpb.RKeyMax, allReservedSplits[1:]}, {baseSql, keys.MakeTablePrefix(reservedStart), keys.MakeTablePrefix(start + 10), allReservedSplits[1:]}, {baseSql, roachpb.RKeyMin, keys.MakeTablePrefix(reservedStart + 2), allReservedSplits[:2]}, {baseSql, roachpb.RKeyMin, keys.MakeTablePrefix(reservedStart + 10), allReservedSplits}, {baseSql, keys.MakeTablePrefix(reservedStart), keys.MakeTablePrefix(reservedStart + 2), allReservedSplits[1:2]}, {baseSql, testutils.MakeKey(keys.MakeTablePrefix(reservedStart), roachpb.RKey("foo")), testutils.MakeKey(keys.MakeTablePrefix(start+10), roachpb.RKey("foo")), allReservedSplits[1:]}, // Reserved + User descriptors. {allSql, keys.MakeTablePrefix(start - 1), roachpb.RKeyMax, allUserSplits}, {allSql, keys.MakeTablePrefix(start), roachpb.RKeyMax, allUserSplits[1:]}, {allSql, keys.MakeTablePrefix(start), keys.MakeTablePrefix(start + 10), allUserSplits[1:]}, {allSql, keys.MakeTablePrefix(start - 1), keys.MakeTablePrefix(start + 10), allUserSplits}, {allSql, keys.MakeTablePrefix(start + 4), keys.MakeTablePrefix(start + 10), allUserSplits[5:]}, {allSql, keys.MakeTablePrefix(start + 5), keys.MakeTablePrefix(start + 10), nil}, {allSql, keys.MakeTablePrefix(start + 6), keys.MakeTablePrefix(start + 10), nil}, {allSql, testutils.MakeKey(keys.MakeTablePrefix(start), roachpb.RKey("foo")), keys.MakeTablePrefix(start + 10), allUserSplits[1:]}, {allSql, testutils.MakeKey(keys.MakeTablePrefix(start), roachpb.RKey("foo")), keys.MakeTablePrefix(start + 5), allUserSplits[1:5]}, {allSql, testutils.MakeKey(keys.MakeTablePrefix(start), roachpb.RKey("foo")), testutils.MakeKey(keys.MakeTablePrefix(start+5), roachpb.RKey("bar")), allUserSplits[1:5]}, {allSql, testutils.MakeKey(keys.MakeTablePrefix(start), roachpb.RKey("foo")), testutils.MakeKey(keys.MakeTablePrefix(start), roachpb.RKey("morefoo")), nil}, {allSql, roachpb.RKeyMin, roachpb.RKeyMax, allSplits}, {allSql, keys.MakeTablePrefix(reservedStart + 1), roachpb.RKeyMax, allSplits[2:]}, {allSql, keys.MakeTablePrefix(reservedStart), keys.MakeTablePrefix(start + 10), allSplits[1:]}, {allSql, roachpb.RKeyMin, keys.MakeTablePrefix(start + 2), allSplits[:6]}, {allSql, testutils.MakeKey(keys.MakeTablePrefix(reservedStart), roachpb.RKey("foo")), testutils.MakeKey(keys.MakeTablePrefix(start+5), roachpb.RKey("foo")), allSplits[1:9]}, } cfg := config.SystemConfig{} for tcNum, tc := range testCases { cfg.Values = tc.values splits := cfg.ComputeSplitKeys(tc.start, tc.end) if len(splits) == 0 && len(tc.splits) == 0 { continue } // Convert ints to actual keys. expected := []roachpb.RKey{} for _, s := range tc.splits { expected = append(expected, keys.MakeRowSentinelKey(keys.MakeTablePrefix(s))) } if !reflect.DeepEqual(splits, expected) { t.Errorf("#%d: bad splits:\ngot: %v\nexpected: %v", tcNum, splits, expected) } } }
func TestGetLargestID(t *testing.T) { defer leaktest.AfterTest(t)() testCases := []struct { values []roachpb.KeyValue largest uint32 maxID uint32 errStr string }{ // No data. {nil, 0, 0, "descriptor table not found"}, // Some data, but not from the system span. {[]roachpb.KeyValue{plainKV("a", "b")}, 0, 0, "descriptor table not found"}, // Some real data, but no descriptors. {[]roachpb.KeyValue{ sqlKV(keys.NamespaceTableID, 1, 1), sqlKV(keys.NamespaceTableID, 1, 2), sqlKV(keys.UsersTableID, 1, 3), }, 0, 0, "descriptor table not found"}, // Single correct descriptor entry. {[]roachpb.KeyValue{sqlKV(keys.DescriptorTableID, 1, 1)}, 1, 0, ""}, // Surrounded by other data. {[]roachpb.KeyValue{ sqlKV(keys.NamespaceTableID, 1, 20), sqlKV(keys.NamespaceTableID, 1, 30), sqlKV(keys.DescriptorTableID, 1, 8), sqlKV(keys.ZonesTableID, 1, 40), }, 8, 0, ""}, // Descriptors with holes. Index ID does not matter. {[]roachpb.KeyValue{ sqlKV(keys.DescriptorTableID, 1, 1), sqlKV(keys.DescriptorTableID, 2, 5), sqlKV(keys.DescriptorTableID, 3, 8), sqlKV(keys.DescriptorTableID, 4, 12), }, 12, 0, ""}, // Real SQL layout. {sqlbase.MakeMetadataSchema().GetInitialValues(), keys.MaxSystemConfigDescID + 4, 0, ""}, // Test non-zero max. {[]roachpb.KeyValue{ sqlKV(keys.DescriptorTableID, 1, 1), sqlKV(keys.DescriptorTableID, 2, 5), sqlKV(keys.DescriptorTableID, 3, 8), sqlKV(keys.DescriptorTableID, 4, 12), }, 8, 8, ""}, // Test non-zero max. {[]roachpb.KeyValue{ sqlKV(keys.DescriptorTableID, 1, 1), sqlKV(keys.DescriptorTableID, 2, 5), sqlKV(keys.DescriptorTableID, 3, 8), sqlKV(keys.DescriptorTableID, 4, 12), }, 5, 7, ""}, } cfg := config.SystemConfig{} for tcNum, tc := range testCases { cfg.Values = tc.values ret, err := cfg.GetLargestObjectID(tc.maxID) if !testutils.IsError(err, tc.errStr) { t.Errorf("#%d: expected err=%q, got %v", tcNum, tc.errStr, err) continue } if err != nil { continue } if ret != tc.largest { t.Errorf("#%d: expected largest=%d, got %d", tcNum, tc.largest, ret) } } }