added test

executor/ddl_test.go

@@ -16,11 +16,6 @@ package executor_test
 import (
 	"context"
 	"fmt"
-	"math"
-	"strconv"
-	"strings"
-	"time"
-
 	. "github.com/pingcap/check"
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/parser/model"
@@ -41,6 +36,10 @@ import (
 	"github.com/pingcap/tidb/util/chunk"
 	"github.com/pingcap/tidb/util/testkit"
 	"github.com/pingcap/tidb/util/testutil"
+	"math"
+	"strconv"
+	"strings"
+	"time"
 )
 
 func (s *testSuite6) TestTruncateTable(c *C) {
@@ -1005,3 +1004,4 @@ func (s *testSuite6) TestTimestampMinDefaultValue(c *C) {
 	tk.MustExec("create table tdv(a int);")
 	tk.MustExec("ALTER TABLE tdv ADD COLUMN ts timestamp DEFAULT '1970-01-01 08:00:01';")
 }
+

executor/executor_test.go

@@ -3948,9 +3948,7 @@ func (s *testSuite6) TearDownTest(c *C) {
 	}
 }
 
-type testSuite7 struct {
-	*baseTestSuite
-}
+
 
 func (s *testSuite7) TearDownTest(c *C) {
 	tk := testkit.NewTestKit(c, s.store)
@@ -5053,3 +5051,7 @@ func (s *testSuiteP2) TestPointUpdatePreparedPlanWithCommitMode(c *C) {
 
 	tk2.MustQuery("select * from t where a = 3").Check(testkit.Rows("3 3 11"))
 }
+
+type testSuite7 struct {
+	*baseTestSuite
+}

executor/plugin_executor.go

@@ -1,8 +1,6 @@
 package executor
 
 import (
-	"fmt"
-	"github.com/davecgh/go-spew/spew"
 	"github.com/pingcap/parser/model"
 	"github.com/pingcap/tidb/plugin"
 	"github.com/pingcap/tidb/util/chunk"
@@ -30,7 +28,6 @@ func (e *PluginScanExecutor) Open(ctx context.Context) error {
 func (e *PluginScanExecutor) Next(ctx context.Context, chk *chunk.Chunk) error {
 	chk.Reset()
 	err := e.pm.OnReaderNext(ctx, chk, e.meta)
-	fmt.Println("pe next finished", spew.Sdump(err))
 	return err
 }
 

plugin/csv/csv.go

@@ -52,7 +52,6 @@ func OnReaderOpen(ctx context.Context, meta *plugin.ExecutorMeta) {
 
 func OnReaderNext(ctx context.Context, chk *chunk.Chunk, meta *plugin.ExecutorMeta) error {
 	if _, ok := Files[meta.Table.Name.L]; !ok {
-		fmt.Println("have some problem")
 		return nil
 	}
 	e := Files[meta.Table.Name.L]

plugin/plugin.go

@@ -384,20 +384,37 @@ func Shutdown(ctx context.Context) {
 	}
 }
 
+// Get finds and returns plugin by kind and name parameters.
+var TestP map[Kind][]Plugin
+
+func Set(kind Kind, p Plugin) {
+	if TestP == nil {
+		TestP = make(map[Kind][]Plugin)
+	}
+	TestP[kind] = append(TestP[kind], p)
+}
+
 // Get finds and returns plugin by kind and name parameters.
 func Get(kind Kind, name string) *Plugin {
 	plugins := pluginGlobal.plugins()
-	if plugins == nil {
-		return nil
+	if plugins != nil {
+		for _, p := range plugins.plugins[kind] {
+			if p.Name == name {
+				return &p
+			}
+		}
 	}
-	for _, p := range plugins.plugins[kind] {
+
+	for _, p := range TestP[kind] {
 		if p.Name == name {
 			return &p
 		}
 	}
+
 	return nil
 }
 
+
 func List(kind Kind) []Plugin {
 	plugins := pluginGlobal.plugins()
 	if plugins == nil {

plugin/plugin_engine_test.go

@@ -0,0 +1,96 @@
+package plugin_test
+
+import (
+	"flag"
+	. "github.com/pingcap/check"
+	"github.com/pingcap/parser"
+	"github.com/pingcap/tidb/domain"
+	"github.com/pingcap/tidb/kv"
+	"github.com/pingcap/tidb/plugin"
+	"github.com/pingcap/tidb/session"
+	"github.com/pingcap/tidb/store/mockstore"
+	"github.com/pingcap/tidb/store/mockstore/mocktikv"
+	"github.com/pingcap/tidb/util/mock"
+	"github.com/pingcap/tidb/util/testkit"
+	"testing"
+	"unsafe"
+)
+
+type baseTestSuite struct {
+	cluster   *mocktikv.Cluster
+	mvccStore mocktikv.MVCCStore
+	store     kv.Storage
+	domain    *domain.Domain
+	*parser.Parser
+	ctx *mock.Context
+}
+
+var mockTikv = flag.Bool("mockTikv", true, "use mock tikv store in executor test")
+
+func (s *baseTestSuite) SetUpSuite(c *C) {
+	s.Parser = parser.New()
+	flag.Lookup("mockTikv")
+	useMockTikv := *mockTikv
+	if useMockTikv {
+		s.cluster = mocktikv.NewCluster()
+		mocktikv.BootstrapWithSingleStore(s.cluster)
+		s.mvccStore = mocktikv.MustNewMVCCStore()
+		store, err := mockstore.NewMockTikvStore(
+			mockstore.WithCluster(s.cluster),
+			mockstore.WithMVCCStore(s.mvccStore),
+		)
+		c.Assert(err, IsNil)
+		s.store = store
+		session.SetSchemaLease(0)
+		session.DisableStats4Test()
+	}
+	d, err := session.BootstrapSession(s.store)
+	c.Assert(err, IsNil)
+	d.SetStatsUpdating(true)
+	s.domain = d
+}
+
+func (s *baseTestSuite) TearDownSuite(c *C) {
+	s.domain.Close()
+	s.store.Close()
+}
+
+var _ = Suite(&testPlugin{&baseTestSuite{}})
+
+type testPlugin struct{ *baseTestSuite }
+
+func TestPlugin(t *testing.T) {
+	//rescueStdout := os.Stdout
+	//_, w, _ := os.Pipe()
+	//os.Stdout = w
+	//
+	//os.Stdout = rescueStdout
+	//
+	//runConf := RunConf{Output: rescueStdout, Verbose: true, KeepWorkDir: true}
+	TestingT(t)
+}
+
+func (s *testPlugin) TestPlugin(c *C) {
+	tk := testkit.NewTestKit(c, s.store)
+	manifest := plugin.EngineManifest{
+		Manifest: plugin.Manifest{
+			Name: "csv",
+		},
+		OnReaderOpen: plugin.OnReaderOpen,
+		OnReaderNext: plugin.OnReaderNext,
+		//OnReaderClose: plugin.OnReaderClose,
+	}
+	plugin.Set(plugin.Engine, plugin.Plugin{
+		Manifest: (*plugin.Manifest)(unsafe.Pointer(&manifest)),
+		Path:     "",
+		Disabled: 0,
+		State:    0,
+	})
+
+	tk.MustExec("use test")
+	tk.MustExec("create table t1(a int, b char(255)) ENGINE = csv")
+	result := tk.MustQuery("select * from t1")
+	result.Check(testkit.Rows("0 233333", "1 233333", "2 233333", "3 233333", "4 233333", "5 233333"))
+	result = tk.MustQuery("select * from t1 where a = 2")
+	result.Check(testkit.Rows("2 233333", ))
+}

plugin/test_engine.go

@@ -0,0 +1,65 @@
+// Copyright 2019 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 plugin
+
+import (
+	"context"
+	"fmt"
+	"github.com/pingcap/tidb/util/chunk"
+)
+
+type ReadExecutor struct {
+	pos int
+}
+
+var Files = make(map[string]*ReadExecutor)
+
+// Validate implements TiDB plugin's Validate SPI.
+func Validate(ctx context.Context, m *Manifest) error {
+	fmt.Println("csv plugin validate")
+	return nil
+}
+
+// OnInit implements TiDB plugin's OnInit SPI.
+func OnInit(ctx context.Context, manifest *Manifest) error {
+	fmt.Println("csv init called")
+	return nil
+}
+
+// OnShutdown implements TiDB plugin's OnShutdown SPI.
+func OnShutdown(ctx context.Context, manifest *Manifest) error {
+	fmt.Println("csv shutdown called")
+	return nil
+}
+
+func OnReaderOpen(ctx context.Context, meta *ExecutorMeta) {
+	Files[meta.Table.Name.L] = &ReadExecutor{
+		pos: 0,
+	}
+}
+
+func OnReaderNext(ctx context.Context, chk *chunk.Chunk, meta *ExecutorMeta) error {
+	if _, ok := Files[meta.Table.Name.L]; !ok {
+		fmt.Println("have some problem")
+		return nil
+	}
+	e := Files[meta.Table.Name.L]
+	if e.pos > 5 {
+		return nil
+	}
+	chk.AppendInt64(0, int64(e.pos))
+	chk.AppendString(1, "233333")
+	e.pos += 1
+	return nil
+}