320 lines
11 KiB
Go
320 lines
11 KiB
Go
package dbmigration
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import (
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"context"
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"errors"
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"net/url"
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"strings"
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"testing"
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"git.pcux.cn/xuans/Smail/config"
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mysql "github.com/go-sql-driver/mysql"
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"github.com/lib/pq"
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)
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type recordingStructuredCopier struct {
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called bool
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source config.DatabaseConfig
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target config.DatabaseConfig
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err error
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}
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func (c *recordingStructuredCopier) Copy(_ context.Context, source, target config.DatabaseConfig) error {
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c.called = true
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c.source = source
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c.target = target
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return c.err
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}
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func validStructuredPlan(t *testing.T) Plan {
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t.Helper()
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database := testDatabase(t)
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database.Name = "smail"
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target := database
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target.Name = "smail_next"
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return Plan{
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sourceConfig: database,
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targetConfig: target,
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actor: config.AuditActor{UserID: "admin-1", Role: "super_admin", SessionID: "session-1"},
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}
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}
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func TestSQLExecutorCopiesAndSwitchesWithOrderedStatuses(t *testing.T) {
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copier := &recordingStructuredCopier{}
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var actor config.AuditActor
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var generation uint64
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executor := NewSQLExecutor(copier, func(_ context.Context, receivedGeneration uint64, _ config.DatabaseConfig, received config.AuditActor) error {
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generation = receivedGeneration
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actor = received
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return nil
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})
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statuses := make([]Status, 0, 2)
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plan := validStructuredPlan(t)
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plan.expectedGeneration = 42
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if err := executor.Run(context.Background(), plan, func(status Status) error {
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statuses = append(statuses, status)
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return nil
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}); err != nil {
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t.Fatal(err)
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}
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if len(statuses) != 2 || statuses[0] != StatusVerifying || statuses[1] != StatusSwitching {
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t.Fatalf("statuses = %v, want verifying then switching", statuses)
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}
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if !copier.called || copier.source.Name != "smail" || copier.target.Name != "smail_next" {
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t.Fatalf("copier call = %+v", copier)
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}
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if actor != plan.actor {
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t.Fatalf("switch actor = %+v, want %+v", actor, plan.actor)
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}
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if generation != plan.expectedGeneration {
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t.Fatalf("switch generation = %d, want %d", generation, plan.expectedGeneration)
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}
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}
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func TestSQLExecutorRejectsImmutablePlanBeforeCopy(t *testing.T) {
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copier := &recordingStructuredCopier{}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error { return nil })
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plan := validStructuredPlan(t)
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plan.targetConfig.Host = "other.example"
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if err := executor.Run(context.Background(), plan, func(Status) error { return nil }); !errors.Is(err, ErrImmutableSetting) {
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t.Fatalf("immutable plan error = %v, want immutable setting", err)
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}
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if copier.called {
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t.Fatal("copier ran for immutable plan")
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}
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}
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func TestSQLExecutorPreservesCopierError(t *testing.T) {
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copyErr := errors.New("复制失败")
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copier := &recordingStructuredCopier{err: copyErr}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error { return nil })
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if err := executor.Run(context.Background(), validStructuredPlan(t), func(Status) error { return nil }); !errors.Is(err, copyErr) {
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t.Fatalf("copy error = %v, want copier error", err)
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}
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}
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func TestSQLExecutorCleansStructuredTargetWhenCopyFails(t *testing.T) {
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copier := &cleanupRecordingCopier{copyErr: errors.New("复制失败")}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error {
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return nil
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})
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if err := executor.Run(context.Background(), validStructuredPlan(t), func(Status) error { return nil }); !errors.Is(err, copier.copyErr) {
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t.Fatalf("copy error = %v, want %v", err, copier.copyErr)
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}
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if !copier.cleanupCalled {
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t.Fatal("structured target cleanup was not requested after copy failure")
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}
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}
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func TestStructuredDatabaseNameValidation(t *testing.T) {
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for _, value := range []string{"smail", "Smail_2026", "mail-prod"} {
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if !validStructuredDatabaseName(value) {
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t.Fatalf("valid database name rejected: %q", value)
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}
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}
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for _, value := range []string{"", "smail;drop", "smail name", "../smail"} {
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if validStructuredDatabaseName(value) {
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t.Fatalf("unsafe database name accepted: %q", value)
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}
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}
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}
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func TestDatabaseExecutorRoutesByDatabaseType(t *testing.T) {
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var sqliteCalled, structuredCalled bool
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sqlite := runnerFunc(func(context.Context, Plan, func(Status) error) error {
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sqliteCalled = true
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return nil
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})
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structured := runnerFunc(func(context.Context, Plan, func(Status) error) error {
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structuredCalled = true
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return nil
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})
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router := NewDatabaseExecutor(sqlite, structured)
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if err := router.Run(context.Background(), Plan{sourceConfig: config.DatabaseConfig{Type: config.DatabaseTypeSQLite}}, func(Status) error { return nil }); err != nil {
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t.Fatal(err)
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}
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if err := router.Run(context.Background(), Plan{sourceConfig: config.DatabaseConfig{Type: config.DatabaseTypeMySQL}}, func(Status) error { return nil }); err != nil {
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t.Fatal(err)
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}
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if !sqliteCalled || !structuredCalled {
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t.Fatalf("router calls: sqlite=%v structured=%v", sqliteCalled, structuredCalled)
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}
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}
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type runnerFunc func(context.Context, Plan, func(Status) error) error
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func (f runnerFunc) Run(ctx context.Context, plan Plan, update func(Status) error) error {
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return f(ctx, plan, update)
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}
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func TestSQLExecutorRejectsMissingConfigurationSwitchBeforeCopy(t *testing.T) {
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copier := &recordingStructuredCopier{}
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executor := NewSQLExecutor(copier, nil)
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if err := executor.Run(context.Background(), validStructuredPlan(t), func(Status) error { return nil }); !errors.Is(err, ErrSwitchUnavailable) {
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t.Fatalf("missing switch error = %v, want switch unavailable", err)
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}
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if copier.called {
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t.Fatal("copier ran without a configuration switch")
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}
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}
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type cleanupRecordingCopier struct {
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cleanupCalled bool
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completeCalled bool
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copyErr error
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}
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func (c *cleanupRecordingCopier) Copy(context.Context, config.DatabaseConfig, config.DatabaseConfig) error {
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return c.copyErr
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}
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func TestDatabaseAlreadyExistsErrorClassification(t *testing.T) {
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mysqlError := &mysql.MySQLError{Number: 1007}
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if !isDatabaseAlreadyExistsError(mysqlError, config.DatabaseTypeMySQL) {
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t.Fatal("mysql duplicate database error was not classified")
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}
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postgresError := &pq.Error{Code: "42P04"}
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if !isDatabaseAlreadyExistsError(postgresError, config.DatabaseTypePostgreSQL) {
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t.Fatal("postgresql duplicate database error was not classified")
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}
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if isDatabaseAlreadyExistsError(errors.New("duplicate database"), config.DatabaseTypeMySQL) {
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t.Fatal("generic mysql error was incorrectly classified")
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}
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}
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func (c *cleanupRecordingCopier) Cleanup(context.Context, config.DatabaseConfig, config.DatabaseConfig) error {
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c.cleanupCalled = true
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return nil
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}
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func (c *cleanupRecordingCopier) Complete(config.DatabaseConfig, config.DatabaseConfig) {
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c.completeCalled = true
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}
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func TestSQLExecutorCleansTargetForKnownConfigurationSwitchRejection(t *testing.T) {
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copier := &cleanupRecordingCopier{}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error {
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return config.ErrGenerationConflict
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})
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err := executor.Run(context.Background(), validStructuredPlan(t), func(Status) error { return nil })
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if !errors.Is(err, config.ErrGenerationConflict) || errors.Is(err, ErrSwitchOutcomeUnknown) {
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t.Fatalf("known switch rejection = %v", err)
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}
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if !copier.cleanupCalled {
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t.Fatal("structured target was not cleaned after known switch rejection")
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}
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}
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func TestSQLExecutorPreservesStructuredTargetWhenConfigurationSwitchOutcomeIsUnknown(t *testing.T) {
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copier := &cleanupRecordingCopier{}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error {
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return errors.New("配置切换失败")
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})
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if err := executor.Run(context.Background(), validStructuredPlan(t), func(Status) error { return nil }); !errors.Is(err, ErrSwitchOutcomeUnknown) {
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t.Fatal("configuration switch failure was not returned")
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}
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if copier.cleanupCalled {
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t.Fatal("structured target was cleaned up even though switch outcome was unknown")
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}
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if copier.completeCalled {
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t.Fatal("structured target was finalized after a failed switch")
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}
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}
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func TestSQLExecutorCleansStructuredTargetWhenStatusUpdateFails(t *testing.T) {
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copier := &cleanupRecordingCopier{}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error {
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return nil
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})
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statusError := errors.New("状态写入失败")
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if err := executor.Run(context.Background(), validStructuredPlan(t), func(status Status) error {
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if status == StatusSwitching {
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return statusError
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}
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return nil
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}); !errors.Is(err, statusError) {
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t.Fatalf("status update error = %v, want %v", err, statusError)
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}
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if !copier.cleanupCalled {
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t.Fatal("structured target cleanup was not requested after status update failure")
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}
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}
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func TestSQLExecutorCleansStructuredTargetWhenContextIsCanceledAfterCopy(t *testing.T) {
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copier := &cleanupRecordingCopier{}
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executor := NewSQLExecutor(copier, func(context.Context, uint64, config.DatabaseConfig, config.AuditActor) error {
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return nil
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})
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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if err := executor.Run(ctx, validStructuredPlan(t), func(status Status) error {
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if status == StatusVerifying {
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cancel()
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}
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return nil
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}); !errors.Is(err, context.Canceled) {
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t.Fatalf("canceled execution error = %v, want context canceled", err)
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}
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if !copier.cleanupCalled {
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t.Fatal("structured target cleanup was not requested after cancellation")
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}
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}
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func TestRuntimeSQLDSNSupportsIPv6AndEscapesCredentials(t *testing.T) {
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database := config.DatabaseConfig{
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Type: config.DatabaseTypeMySQL,
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Host: "2001:db8::3",
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Port: 3306,
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Username: "mail user",
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}
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driver, dsn, err := runtimeSQLDSN(database, "p@ss/word", "smail_next")
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if err != nil {
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t.Fatal(err)
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}
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if driver != "mysql" {
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t.Fatalf("mysql driver = %q", driver)
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}
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parsedMySQL, err := mysql.ParseDSN(dsn)
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if err != nil {
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t.Fatal(err)
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}
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if parsedMySQL.Addr != "[2001:db8::3]:3306" || parsedMySQL.User != "mail user" || parsedMySQL.Passwd != "p@ss/word" || parsedMySQL.DBName != "smail_next" {
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t.Fatalf("mysql dsn config = %+v", parsedMySQL)
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}
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database.Type = config.DatabaseTypePostgreSQL
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driver, dsn, err = runtimeSQLDSN(database, "p@ss/word", "smail_next")
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if err != nil {
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t.Fatal(err)
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}
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if driver != "postgres" {
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t.Fatalf("postgres driver = %q", driver)
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}
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parsedPostgres, err := url.Parse(dsn)
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if err != nil {
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t.Fatal(err)
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}
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password, ok := parsedPostgres.User.Password()
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if !ok || parsedPostgres.Host != "[2001:db8::3]:3306" || parsedPostgres.User.Username() != "mail user" || password != "p@ss/word" || parsedPostgres.Path != "/smail_next" {
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t.Fatalf("postgres dsn = %s", dsn)
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}
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}
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func TestMySQLReferenceRulesAndIdentifiersAreRestrictedSafely(t *testing.T) {
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for _, rule := range []string{"CASCADE", "SET NULL", "SET DEFAULT", "RESTRICT", "NO ACTION"} {
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if !validMySQLReferenceRule(rule) {
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t.Fatalf("valid mysql reference rule rejected: %q", rule)
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}
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}
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for _, rule := range []string{"DROP DATABASE", "CASCADE; DROP TABLE users"} {
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if validMySQLReferenceRule(rule) {
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t.Fatalf("unsafe mysql reference rule accepted: %q", rule)
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}
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}
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if got := quoteMySQLIdentifier("mail`prod"); got != "`mail``prod`" {
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t.Fatalf("quoted mysql identifier = %q", got)
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}
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if got := strings.Join(quoteMySQLIdentifiers([]string{"user", "tenant"}), ", "); got != "`user`, `tenant`" {
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t.Fatalf("quoted mysql identifiers = %q", got)
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}
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}
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