Use testcontainers to spawn MySQL server container in unit tests.

go.mod

@@ -9,20 +9,63 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/openark/golib v0.0.0-20210531070646-355f37940af8
 	github.com/stretchr/testify v1.9.0
+	github.com/testcontainers/testcontainers-go v0.34.0
 	golang.org/x/net v0.24.0
 	golang.org/x/term v0.19.0
 	golang.org/x/text v0.14.0
 )
 
 require (
+	dario.cat/mergo v1.0.0 // indirect
 	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/containerd/containerd v1.7.18 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
+	github.com/cpuguy83/dockercfg v0.3.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/docker v27.1.1+incompatible // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/klauspost/compress v1.17.4 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.5.0 // indirect
+	github.com/moby/sys/user v0.1.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0 // indirect
 	github.com/pingcap/errors v0.11.5-0.20210425183316-da1aaba5fb63 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/shirou/gopsutil/v3 v3.23.12 // indirect
+	github.com/shoenig/go-m1cpu v0.1.6 // indirect
 	github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24 // indirect
 	github.com/siddontang/go v0.0.0-20180604090527-bdc77568d726 // indirect
 	github.com/siddontang/go-log v0.0.0-20180807004314-8d05993dda07 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.3 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/trace v1.24.0 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
-	golang.org/x/sys v0.19.0 // indirect
+	golang.org/x/crypto v0.22.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go/logic/applier_test.go

@@ -6,13 +6,20 @@
 package logic
 
 import (
+	"context"
+	gosql "database/sql"
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/wait"
 
 	"github.com/github/gh-ost/go/base"
 	"github.com/github/gh-ost/go/binlog"
+	"github.com/github/gh-ost/go/mysql"
 	"github.com/github/gh-ost/go/sql"
 )
 
@@ -185,3 +192,181 @@ func TestApplierInstantDDL(t *testing.T) {
 		require.Equal(t, "ALTER /* gh-ost */ TABLE `test`.`mytable` ADD INDEX (foo), ALGORITHM=INSTANT", stmt)
 	})
 }
+
+type ApplierTestSuite struct {
+	suite.Suite
+
+	mysqlContainer testcontainers.Container
+}
+
+func (suite *ApplierTestSuite) SetupSuite() {
+	ctx := context.Background()
+	req := testcontainers.ContainerRequest{
+		Image:      "mysql:8.0",
+		Env:        map[string]string{"MYSQL_ROOT_PASSWORD": "root-password"},
+		WaitingFor: wait.ForLog("port: 3306  MySQL Community Server - GPL"),
+	}
+
+	mysqlContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{
+		ContainerRequest: req,
+		Started:          true,
+	})
+	suite.Require().NoError(err)
+
+	suite.mysqlContainer = mysqlContainer
+}
+
+func (suite *ApplierTestSuite) TeardownSuite() {
+	ctx := context.Background()
+
+	suite.Require().NoError(suite.mysqlContainer.Terminate(ctx))
+}
+
+func (suite *ApplierTestSuite) SetupTest() {
+	ctx := context.Background()
+
+	rc, _, err := suite.mysqlContainer.Exec(ctx, []string{"mysql", "-uroot", "-proot-password", "-e", "CREATE DATABASE test;"})
+	suite.Require().NoError(err)
+	suite.Require().Equalf(0, rc, "failed to created database: expected exit code 0, got %d", rc)
+
+	rc, _, err = suite.mysqlContainer.Exec(ctx, []string{"mysql", "-uroot", "-proot-password", "-e", "CREATE TABLE test.testing (id INT, item_id INT);"})
+	suite.Require().NoError(err)
+	suite.Require().Equalf(0, rc, "failed to created table: expected exit code 0, got %d", rc)
+}
+
+func (suite *ApplierTestSuite) TearDownTest() {
+	ctx := context.Background()
+
+	rc, _, err := suite.mysqlContainer.Exec(ctx, []string{"mysql", "-uroot", "-proot-password", "-e", "DROP DATABASE test;"})
+	suite.Require().NoError(err)
+	suite.Require().Equalf(0, rc, "failed to created database: expected exit code 0, got %d", rc)
+}
+
+func (suite *ApplierTestSuite) TestInitDBConnections() {
+	ctx := context.Background()
+
+	host, err := suite.mysqlContainer.ContainerIP(ctx)
+	suite.Require().NoError(err)
+
+	migrationContext := base.NewMigrationContext()
+	migrationContext.ApplierConnectionConfig = mysql.NewConnectionConfig()
+	migrationContext.ApplierConnectionConfig.Key.Hostname = host
+	migrationContext.ApplierConnectionConfig.Key.Port = 3306
+	migrationContext.ApplierConnectionConfig.User = "root"
+	migrationContext.ApplierConnectionConfig.Password = "root-password"
+	migrationContext.DatabaseName = "test"
+	migrationContext.OriginalTableName = "testing"
+	migrationContext.SetConnectionConfig("innodb")
+
+	applier := NewApplier(migrationContext)
+	defer applier.Teardown()
+
+	err = applier.InitDBConnections()
+	suite.Require().NoError(err)
+
+	suite.Require().Equal("8.0.40", migrationContext.ApplierMySQLVersion)
+	suite.Require().Equal(int64(28800), migrationContext.ApplierWaitTimeout)
+	suite.Require().Equal("SYSTEM", migrationContext.ApplierTimeZone)
+
+	suite.Require().Equal(sql.NewColumnList([]string{"id", "item_id"}), migrationContext.OriginalTableColumnsOnApplier)
+}
+
+func (suite *ApplierTestSuite) TestApplyDMLEventQueries() {
+	ctx := context.Background()
+
+	host, err := suite.mysqlContainer.ContainerIP(ctx)
+	suite.Require().NoError(err)
+
+	migrationContext := base.NewMigrationContext()
+	migrationContext.ApplierConnectionConfig = mysql.NewConnectionConfig()
+	migrationContext.ApplierConnectionConfig.Key.Hostname = host
+	migrationContext.ApplierConnectionConfig.Key.Port = 3306
+	migrationContext.ApplierConnectionConfig.User = "root"
+	migrationContext.ApplierConnectionConfig.Password = "root-password"
+	migrationContext.DatabaseName = "test"
+	migrationContext.OriginalTableName = "testing"
+	migrationContext.SetConnectionConfig("innodb")
+
+	migrationContext.OriginalTableColumns = sql.NewColumnList([]string{"id", "item_id"})
+	migrationContext.SharedColumns = sql.NewColumnList([]string{"id", "item_id"})
+	migrationContext.MappedSharedColumns = sql.NewColumnList([]string{"id", "item_id"})
+
+	applier := NewApplier(migrationContext)
+	defer applier.Teardown()
+
+	err = applier.InitDBConnections()
+	suite.Require().NoError(err)
+
+	rc, _, err := suite.mysqlContainer.Exec(ctx, []string{"mysql", "-uroot", "-proot-password", "-e", "CREATE TABLE test._testing_gho (id INT, item_id INT);"})
+	suite.Require().NoError(err)
+	suite.Require().Equalf(0, rc, "failed to created table: expected exit code 0, got %d", rc)
+
+	dmlEvents := []*binlog.BinlogDMLEvent{
+		{
+			DatabaseName:    "test",
+			TableName:       "testing",
+			DML:             binlog.InsertDML,
+			NewColumnValues: sql.ToColumnValues([]interface{}{123456, 42}),
+		},
+	}
+	err = applier.ApplyDMLEventQueries(dmlEvents)
+	suite.Require().NoError(err)
+
+	// Check that the row was inserted
+	db, err := gosql.Open("mysql", "root:root-password@tcp("+host+":3306)/test")
+	suite.Require().NoError(err)
+	defer db.Close()
+
+	rows, err := db.Query("SELECT * FROM test._testing_gho")
+	suite.Require().NoError(err)
+	defer rows.Close()
+
+	var count, id, item_id int
+	for rows.Next() {
+		err = rows.Scan(&id, &item_id)
+		suite.Require().NoError(err)
+		count += 1
+	}
+	suite.Require().NoError(rows.Err())
+
+	suite.Require().Equal(1, count)
+	suite.Require().Equal(123456, id)
+	suite.Require().Equal(42, item_id)
+
+	suite.Require().Equal(int64(1), migrationContext.TotalDMLEventsApplied)
+	suite.Require().Equal(int64(0), migrationContext.RowsDeltaEstimate)
+}
+
+func (suite *ApplierTestSuite) TestValidateOrDropExistingTables() {
+	ctx := context.Background()
+
+	host, err := suite.mysqlContainer.ContainerIP(ctx)
+	suite.Require().NoError(err)
+
+	migrationContext := base.NewMigrationContext()
+	migrationContext.ApplierConnectionConfig = mysql.NewConnectionConfig()
+	migrationContext.ApplierConnectionConfig.Key.Hostname = host
+	migrationContext.ApplierConnectionConfig.Key.Port = 3306
+	migrationContext.ApplierConnectionConfig.User = "root"
+	migrationContext.ApplierConnectionConfig.Password = "root-password"
+	migrationContext.DatabaseName = "test"
+	migrationContext.OriginalTableName = "testing"
+	migrationContext.SetConnectionConfig("innodb")
+
+	migrationContext.OriginalTableColumns = sql.NewColumnList([]string{"id", "item_id"})
+	migrationContext.SharedColumns = sql.NewColumnList([]string{"id", "item_id"})
+	migrationContext.MappedSharedColumns = sql.NewColumnList([]string{"id", "item_id"})
+
+	applier := NewApplier(migrationContext)
+	defer applier.Teardown()
+
+	err = applier.InitDBConnections()
+	suite.Require().NoError(err)
+
+	err = applier.ValidateOrDropExistingTables()
+	suite.Require().NoError(err)
+}
+
+func TestApplier(t *testing.T) {
+	suite.Run(t, new(ApplierTestSuite))
+}

vendor/dario.cat/mergo/.deepsource.toml

@@ -0,0 +1,12 @@
+version = 1
+
+test_patterns = [
+  "*_test.go"
+]
+
+[[analyzers]]
+name = "go"
+enabled = true
+
+  [analyzers.meta]
+  import_path = "dario.cat/mergo"

vendor/dario.cat/mergo/.gitignore

@@ -0,0 +1,33 @@
+#### joe made this: http://goel.io/joe
+
+#### go ####
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+
+#### vim ####
+# Swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+
+# Session
+Session.vim
+
+# Temporary
+.netrwhist
+*~
+# Auto-generated tag files
+tags

vendor/dario.cat/mergo/.travis.yml

@@ -0,0 +1,12 @@
+language: go
+arch:
+    - amd64
+    - ppc64le
+install:
+  - go get -t
+  - go get golang.org/x/tools/cmd/cover
+  - go get github.com/mattn/goveralls
+script:
+  - go test -race -v ./...
+after_script:
+  - $HOME/gopath/bin/goveralls -service=travis-ci -repotoken $COVERALLS_TOKEN

vendor/dario.cat/mergo/CODE_OF_CONDUCT.md

@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at [email protected]. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/