ddl: add reorg test.

ddl/reorg_test.go

@@ -0,0 +1,114 @@
+// Copyright 2015 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ddl
+
+import (
+	"time"
+
+	. "github.com/pingcap/check"
+	"github.com/pingcap/tidb/kv"
+	"github.com/pingcap/tidb/meta"
+	"github.com/pingcap/tidb/model"
+)
+
+type testCtxKeyType int
+
+func (k testCtxKeyType) String() string {
+	return "test_ctx_key"
+}
+
+const testCtxKey testCtxKeyType = 0
+
+func (s *testDDLSuite) TestReorg(c *C) {
+	store := testCreateStore(c, "test_reorg")
+	defer store.Close()
+
+	lease := 50 * time.Millisecond
+	d := newDDL(store, nil, nil, lease)
+	defer d.close()
+
+	time.Sleep(lease)
+
+	ctx := testNewContext(c, d)
+
+	ctx.SetValue(testCtxKey, 1)
+	c.Assert(ctx.Value(testCtxKey), Equals, 1)
+	ctx.ClearValue(testCtxKey)
+
+	txn, err := ctx.GetTxn(true)
+	c.Assert(err, IsNil)
+	txn.Set([]byte("a"), []byte("b"))
+	err = ctx.FinishTxn(true)
+	c.Assert(err, IsNil)
+
+	txn, err = ctx.GetTxn(false)
+	c.Assert(err, IsNil)
+	txn.Set([]byte("a"), []byte("b"))
+	err = ctx.FinishTxn(false)
+	c.Assert(err, IsNil)
+
+	done := make(chan struct{})
+	f := func() error {
+		time.Sleep(200 * time.Millisecond)
+		close(done)
+		return nil
+	}
+	err = d.runReorgJob(f)
+	c.Assert(err, NotNil)
+
+	<-done
+	err = d.runReorgJob(f)
+	c.Assert(err, IsNil)
+
+	d.close()
+	err = d.runReorgJob(func() error {
+		time.Sleep(1 * time.Second)
+		return nil
+	})
+	c.Assert(err, NotNil)
+	d.start()
+
+	job := &model.Job{
+		ID:       1,
+		SchemaID: 1,
+		Type:     model.ActionCreateSchema,
+		Args:     []interface{}{model.NewCIStr("test")},
+	}
+
+	var info *reorgInfo
+	err = kv.RunInNewTxn(d.store, false, func(txn kv.Transaction) error {
+		t := meta.NewMeta(txn)
+		var err error
+		info, err = d.getReorgInfo(t, job)
+		c.Assert(err, IsNil)
+		err = info.UpdateHandle(txn, 1)
+		c.Assert(err, IsNil)
+
+		return nil
+	})
+	c.Assert(err, IsNil)
+
+	err = kv.RunInNewTxn(d.store, false, func(txn kv.Transaction) error {
+		t := meta.NewMeta(txn)
+		var err error
+		info, err = d.getReorgInfo(t, job)
+		c.Assert(err, IsNil)
+		c.Assert(info.Handle, Greater, int64(0))
+		return nil
+	})
+	c.Assert(err, IsNil)
+
+	err = info.RemoveHandle()
+	c.Assert(err, IsNil)
+}