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test: quick script to generate data into a live database #19451

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06899e5
working to generate fake db laod
Emyrk Aug 20, 2025
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Emyrk Aug 20, 2025
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129 changes: 129 additions & 0 deletions scripts/generatedata/main.go
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Original file line number Diff line number Diff line change
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package main

import (
"context"
"flag"
"fmt"
"os"
"strings"
"testing"

"golang.org/x/xerrors"

"cdr.dev/slog"
"cdr.dev/slog/sloggers/sloghuman"
"github.com/coder/coder/v2/cli"
"github.com/coder/coder/v2/coderd/database"
"github.com/coder/coder/v2/coderd/database/dbfake"
"github.com/coder/coder/v2/coderd/database/dbgen"
"github.com/coder/coder/v2/coderd/database/migrations"
)

func main() {
if err := run(); err != nil {
_, _ = fmt.Fprintf(os.Stderr, "error: %+v\n", err)
os.Exit(1)
}
}

func run() error {
logLevel := flag.String("log-level", "info", "Log level (debug, info, warn, error)")
postgresURL := flag.String("postgres-url", "", "Postgres connection URL")

flag.Parse()
ctx := context.Background()

if *postgresURL == "" {
return xerrors.New("postgres-url is required")
}

logger := slog.Make(sloghuman.Sink(os.Stderr))
switch strings.ToLower(*logLevel) {
case "debug":
logger = logger.Leveled(slog.LevelDebug)
case "info":
logger = logger.Leveled(slog.LevelInfo)
case "warn":
logger = logger.Leveled(slog.LevelWarn)
case "error":
logger = logger.Leveled(slog.LevelError)
default:
return xerrors.New("invalid log level")
}

sqlDB, err := cli.ConnectToPostgres(ctx, logger, "postgres", *postgresURL, migrations.Up)
if err != nil {
return xerrors.Errorf("connect to postgres: %w", err)
}
defer sqlDB.Close()

db := database.New(sqlDB)
Generate(db, GenerateWorkspaceBuilds)
return nil
}

// GenerateWorkspaceBuilds generates many workspace builds for many workspaces.
func GenerateWorkspaceBuilds(t *testing.T, db database.Store) {
err := db.InTx(func(db database.Store) error {
ctx := context.Background()
o := pe(db.GetDefaultOrganization(ctx))
admin := dbgen.User(t, db, database.User{})

tv := dbfake.TemplateVersion(t, db).
Seed(database.TemplateVersion{
OrganizationID: o.ID,
CreatedBy: admin.ID,
}).
Do()

users := make([]database.User, 10)
for i := range users {
users[i] = dbgen.User(t, db, database.User{})
dbgen.OrganizationMember(t, db, database.OrganizationMember{
UserID: users[i].ID,
OrganizationID: o.ID,
})

ws := dbgen.Workspace(t, db, database.WorkspaceTable{
TemplateID: tv.Template.ID,
OwnerID: users[i].ID,
})
for j := 0; j < 100; j++ {
dbfake.WorkspaceBuild(t, db, ws).
Seed(database.WorkspaceBuild{
WorkspaceID: ws.ID,
BuildNumber: int32(j) + 1,

Check failure on line 95 in scripts/generatedata/main.go

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G115: integer overflow conversion int -> int32 (gosec)
}).
Do()
}
}
return nil
}, nil)
if err != nil {
t.Fatalf("failed to run in transaction: %+v", err)
}
}

func pe[T any](thing T, err error) T {
if err != nil {
panic(err)
}
return thing
}

func Generate(db database.Store, do func(t *testing.T, db database.Store)) {
//testing.Init()
//_ = flag.Set("test.timeout", "0")

// This is just a way to run tests outside go test
testing.Main(func(_, _ string) (bool, error) {
return true, nil
}, []testing.InternalTest{
{
Name: "Run data generation",
F: func(t *testing.T) {
do(t, db)
},
},
}, nil, nil)
}
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