kvserver: fix TestStoreRangeSplitAndMergeWithGlobalReads

Directly set the span config for the range under test rather than
setting the ZoneConfig and waiting for it to propagate. In addition to
simplifying the test it also makes it run faster.

Fixes: cockroachdb#119230

Epic: none

Release note: None

pkg/kv/kvserver/client_split_test.go

@@ -4007,8 +4007,6 @@ func TestStoreRangeSplitAndMergeWithGlobalReads(t *testing.T) {
 	defer leaktest.AfterTest(t)()
 	defer log.Scope(t).Close(t)
 
-	skip.WithIssue(t, 119230)
-
 	// Detect splits and merges over the global read ranges. Assert that the split
 	// and merge transactions commit with pushed write timestamps, and that the
 	// commit-wait sleep for these transactions is performed before running their
@@ -4043,13 +4041,30 @@ func TestStoreRangeSplitAndMergeWithGlobalReads(t *testing.T) {
 		return nil
 	}
 
+	descID := bootstrap.TestingUserDescID(0)
+	descKey := keys.SystemSQLCodec.TablePrefix(descID)
+	splitKey := append(descKey, []byte("split")...)
+
+	// Set global reads for the test ranges.
+	spanConfig := zonepb.DefaultZoneConfig().AsSpanConfig()
+	spanConfig.GlobalReads = true
+	overrides := []spanconfig.ConfigOverride{
+		{Key: roachpb.RKey(descKey), Config: spanConfig},
+		{Key: roachpb.RKey(splitKey), Config: spanConfig},
+	}
+
 	ctx := context.Background()
 	s, sqlDB, _ := serverutils.StartServer(t, base.TestServerArgs{
 		Knobs: base.TestingKnobs{
 			Store: &kvserver.StoreTestingKnobs{
 				DisableMergeQueue:     true,
 				TestingResponseFilter: respFilter,
 			},
+			SpanConfig: &spanconfig.TestingKnobs{
+				StoreKVSubscriberOverride: func(original spanconfig.KVSubscriber) spanconfig.KVSubscriber {
+					return &spanconfig.WrappingKVSubscriber{Wrapped: original, Overrides: overrides}
+				},
+			},
 		},
 	})
 
@@ -4062,11 +4077,8 @@ func TestStoreRangeSplitAndMergeWithGlobalReads(t *testing.T) {
 	tdb.Exec(t, `SET CLUSTER SETTING kv.rangefeed.closed_timestamp_refresh_interval = '20ms'`)
 	store, err := s.GetStores().(*kvserver.Stores).GetStore(s.GetFirstStoreID())
 	require.NoError(t, err)
-	config.TestingSetupZoneConfigHook(s.Stopper())
 
 	// Split off the range for the test.
-	descID := bootstrap.TestingUserDescID(0)
-	descKey := keys.SystemSQLCodec.TablePrefix(descID)
 	splitArgs := adminSplitArgs(descKey)
 	_, pErr := kv.SendWrapped(ctx, store.TestSender(), splitArgs)
 	require.Nil(t, pErr)
@@ -4075,36 +4087,23 @@ func TestStoreRangeSplitAndMergeWithGlobalReads(t *testing.T) {
 	// response filter.
 	clockPtr.Store(s.Clock())
 
-	// Set global reads.
-	zoneConfig := zonepb.DefaultZoneConfig()
-	zoneConfig.GlobalReads = proto.Bool(true)
-	config.TestingSetZoneConfig(config.ObjectID(descID), zoneConfig)
-
-	// Perform a write to the system config span being watched by
-	// the SystemConfigProvider.
-	tdb.Exec(t, "CREATE TABLE foo ()")
-	testutils.SucceedsSoon(t, func() error {
-		repl := store.LookupReplica(roachpb.RKey(descKey))
-		if repl.ClosedTimestampPolicy() != roachpb.LEAD_FOR_GLOBAL_READS {
-			return errors.Errorf("expected LEAD_FOR_GLOBAL_READS policy")
-		}
-		return nil
-	})
+	// Verify that the closed timestamp policy is set up.
+	repl := store.LookupReplica(roachpb.RKey(descKey))
+	require.Equal(t, repl.ClosedTimestampPolicy(), roachpb.LEAD_FOR_GLOBAL_READS)
 
 	// Write to the range, which has the effect of bumping the closed timestamp.
 	pArgs := putArgs(descKey, []byte("foo"))
 	_, pErr = kv.SendWrapped(ctx, store.TestSender(), pArgs)
 	require.Nil(t, pErr)
 
 	// Split the range. Should succeed.
-	splitKey := append(descKey, []byte("split")...)
 	splitArgs = adminSplitArgs(splitKey)
 	_, pErr = kv.SendWrapped(ctx, store.TestSender(), splitArgs)
 	require.Nil(t, pErr)
 	require.Equal(t, int64(1), store.Metrics().CommitWaitsBeforeCommitTrigger.Count())
 	require.Equal(t, int64(1), atomic.LoadInt64(&splits))
 
-	repl := store.LookupReplica(roachpb.RKey(splitKey))
+	repl = store.LookupReplica(roachpb.RKey(splitKey))
 	require.Equal(t, splitKey, repl.Desc().StartKey.AsRawKey())
 
 	// Merge the range. Should succeed.