test: add realtikvtest for load data (#42762)

ref #40499

Makefile

@@ -480,6 +480,10 @@ bazel_addindextest: failpoint-enable bazel_ci_prepare
 	bazel $(BAZEL_GLOBAL_CONFIG) test $(BAZEL_CMD_CONFIG) --test_arg=-with-real-tikv --define gotags=deadlock,intest \
 		-- //tests/realtikvtest/addindextest/...
 
+bazel_loaddatatest: failpoint-enable bazel_ci_prepare
+	bazel $(BAZEL_GLOBAL_CONFIG) test $(BAZEL_CMD_CONFIG) --test_arg=-with-real-tikv --define gotags=deadlock,intest \
+		-- //tests/realtikvtest/loaddatatest/...
+
 bazel_lint: bazel_prepare
 	bazel build //... --//build:with_nogo_flag=true
 

tests/realtikvtest/loaddatatest/BUILD.bazel

@@ -0,0 +1,21 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
+
+go_test(
+    name = "loaddatatest_test",
+    timeout = "short",
+    srcs = [
+        "main_test.go",
+        "util_test.go",
+    ],
+    flaky = True,
+    race = "on",
+    deps = [
+        "//config",
+        "//kv",
+        "//testkit",
+        "//tests/realtikvtest",
+        "@com_github_fsouza_fake_gcs_server//fakestorage",
+        "@com_github_stretchr_testify//suite",
+        "@org_uber_go_goleak//:goleak",
+    ],
+)

tests/realtikvtest/loaddatatest/main_test.go

@@ -0,0 +1,38 @@
+// Copyright 2023 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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package loaddatatest
+
+import (
+	"testing"
+
+	"github.com/pingcap/tidb/config"
+	"go.uber.org/goleak"
+)
+
+func init() {
+	// need a real PD
+	config.UpdateGlobal(func(conf *config.Config) {
+		conf.Path = "127.0.0.1:2379"
+	})
+}
+
+func TestMain(m *testing.M) {
+	opts := []goleak.Option{
+		goleak.IgnoreTopFunction("go.opencensus.io/stats/view.(*worker).start"),
+		goleak.IgnoreTopFunction("github.com/golang/glog.(*loggingT).flushDaemon"),
+		goleak.IgnoreTopFunction("github.com/lestrrat-go/httprc.runFetchWorker"),
+	}
+	goleak.VerifyTestMain(m, opts...)
+}

tests/realtikvtest/loaddatatest/util_test.go

@@ -0,0 +1,65 @@
+// Copyright 2023 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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package loaddatatest
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/fsouza/fake-gcs-server/fakestorage"
+	"github.com/pingcap/tidb/kv"
+	"github.com/pingcap/tidb/testkit"
+	"github.com/pingcap/tidb/tests/realtikvtest"
+	"github.com/stretchr/testify/suite"
+)
+
+type mockGCSSuite struct {
+	suite.Suite
+
+	server *fakestorage.Server
+	store  kv.Storage
+	tk     *testkit.TestKit
+}
+
+var (
+	gcsHost = "127.0.0.1"
+	gcsPort = uint16(4443)
+	// for fake gcs server, we must use this endpoint format
+	// NOTE: must end with '/'
+	gcsEndpointFormat = "http://%s:%d/storage/v1/"
+	gcsEndpoint       = fmt.Sprintf(gcsEndpointFormat, gcsHost, gcsPort)
+)
+
+func TestLoadRemote(t *testing.T) {
+	suite.Run(t, &mockGCSSuite{})
+}
+
+func (s *mockGCSSuite) SetupSuite() {
+	var err error
+	opt := fakestorage.Options{
+		Scheme:     "http",
+		Host:       gcsHost,
+		Port:       gcsPort,
+		PublicHost: gcsHost,
+	}
+	s.server, err = fakestorage.NewServerWithOptions(opt)
+	s.Require().NoError(err)
+	s.store = realtikvtest.CreateMockStoreAndSetup(s.T())
+	s.tk = testkit.NewTestKit(s.T(), s.store)
+}
+
+func (s *mockGCSSuite) TearDownSuite() {
+	s.server.Stop()
+}