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comfy_test.go
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comfy_test.go
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package comfylite3
import (
"database/sql"
"fmt"
"log/slog"
"math/rand"
"os"
"strings"
"testing"
"time"
)
func TestMemory(t *testing.T) {
comfyMe, err := New(
WithMemory(),
)
if err != nil {
t.Fatal(err)
}
defer comfyMe.Close()
chnCreate := make(chan uint64)
go func() {
chnCreate <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT)")
})
}()
createID := <-chnCreate
<-comfyMe.WaitForChn(createID)
go func() {
chnInsert := make(chan uint64)
go func() {
chnInsert <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("INSERT INTO users (name) VALUES (?)", "Jane Smith")
})
}()
insertID := <-chnInsert
<-comfyMe.WaitForChn(insertID)
}()
chnInsertDoe := make(chan uint64)
go func() {
chnInsertDoe <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("INSERT INTO users (name) VALUES (?)", "Doe Smith")
})
}()
insertDoeID := <-chnInsertDoe
chnInsertMain := comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("INSERT INTO users (name) VALUES (?)", "John Doe")
})
<-comfyMe.WaitForChn(chnInsertMain)
<-comfyMe.WaitForChn(insertDoeID)
chnSelect := make(chan uint64)
go func() {
chnSelect <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
names := []string{}
rows, err := db.Query("SELECT name FROM users")
if err != nil {
return nil, err
}
defer rows.Close()
var name string
for rows.Next() {
err := rows.Scan(&name)
if err != nil {
return nil, err
}
names = append(names, name)
}
return names, nil
})
}()
selectMainID := comfyMe.New(func(db *sql.DB) (interface{}, error) {
names := []string{}
rows, err := db.Query("SELECT name FROM users")
if err != nil {
return nil, err
}
defer rows.Close()
var name string
for rows.Next() {
err := rows.Scan(&name)
if err != nil {
t.Fatal(err)
}
names = append(names, name)
}
return names, nil
})
resultMainUsers := <-comfyMe.WaitForChn(selectMainID)
selectGoID := <-chnSelect // almost same time, see if we got our select from the previous goroutine
resultFromGo := <-comfyMe.WaitForChn(selectGoID)
var names []string
switch dd := resultMainUsers.(type) {
case error:
t.Fatal(resultMainUsers)
case []string:
names = dd
fmt.Println(names)
default:
t.Fatal("unexpected result")
}
slog.Info("Data read")
var goNames []string
switch dd := resultFromGo.(type) {
case error:
t.Fatal(resultFromGo)
case []string:
goNames = dd
fmt.Println(goNames)
default:
t.Fatal("unexpected result")
}
slog.Info("Data read")
// Compare names and goNames
if len(names) != len(goNames) {
t.Fatal("Data mismatch")
}
for i := 0; i < len(names); i++ {
if names[i] != goNames[i] {
t.Fatal("Data mismatch")
}
}
}
func deleteTestDbFile() error {
files, err := os.ReadDir(".")
if err != nil {
return err
}
for _, file := range files {
if strings.HasPrefix(file.Name(), "test.db") {
err := os.Remove(file.Name())
if err != nil {
return nil
}
}
}
return nil
}
func TestFile(t *testing.T) {
if err := deleteTestDbFile(); err != nil {
t.Fatal(err)
}
comfyMe, err := New(
WithPath("test.db"),
)
if err != nil {
t.Fatal(err)
}
defer comfyMe.Close()
chnCreate := make(chan uint64)
go func() {
chnCreate <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT)")
})
}()
createID := <-chnCreate
<-comfyMe.WaitForChn(createID)
go func() {
chnInsert := make(chan uint64)
go func() {
chnInsert <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("INSERT INTO users (name) VALUES (?)", "Jane Smith")
})
}()
insertID := <-chnInsert
<-comfyMe.WaitForChn(insertID)
}()
chnInsertDoe := make(chan uint64)
go func() {
chnInsertDoe <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("INSERT INTO users (name) VALUES (?)", "Doe Smith")
})
}()
insertDoeID := <-chnInsertDoe
chnInsertMain := comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec("INSERT INTO users (name) VALUES (?)", "John Doe")
})
<-comfyMe.WaitForChn(chnInsertMain)
<-comfyMe.WaitForChn(insertDoeID)
chnSelect := make(chan uint64)
go func() {
chnSelect <- comfyMe.New(func(db *sql.DB) (interface{}, error) {
names := []string{}
rows, err := db.Query("SELECT name FROM users")
if err != nil {
return nil, err
}
defer rows.Close()
var name string
for rows.Next() {
err := rows.Scan(&name)
if err != nil {
return nil, err
}
names = append(names, name)
}
return names, nil
})
}()
selectMainID := comfyMe.New(func(db *sql.DB) (interface{}, error) {
names := []string{}
rows, err := db.Query("SELECT name FROM users")
if err != nil {
return nil, err
}
defer rows.Close()
var name string
for rows.Next() {
err := rows.Scan(&name)
if err != nil {
t.Fatal(err)
}
names = append(names, name)
}
return names, nil
})
resultMainUsers := <-comfyMe.WaitForChn(selectMainID)
selectGoID := <-chnSelect // almost same time, see if we got our select from the previous goroutine
resultFromGo := <-comfyMe.WaitForChn(selectGoID)
var names []string
switch dd := resultMainUsers.(type) {
case error:
t.Fatal(resultMainUsers)
case []string:
names = dd
fmt.Println(names)
default:
t.Fatal("unexpected result")
}
slog.Info("Data read")
var goNames []string
switch dd := resultFromGo.(type) {
case error:
t.Fatal(resultFromGo)
case []string:
goNames = dd
fmt.Println(goNames)
default:
t.Fatal("unexpected result")
}
slog.Info("Data read")
// Compare names and goNames
if len(names) != len(goNames) {
t.Fatal("Data mismatch")
}
for i := 0; i < len(names); i++ {
if names[i] != goNames[i] {
t.Fatal("Data mismatch")
}
}
if err := deleteTestDbFile(); err != nil {
t.Fatal(err)
}
}
const (
setupSql = `
CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, user_name TEXT);
CREATE TABLE IF NOT EXISTS products (id INTEGER PRIMARY KEY, product_name TEXT);
DELETE FROM products;
`
routines = 5000
)
var r *rand.Rand
func init() {
r = rand.New(rand.NewSource(time.Now().UnixNano()))
}
func randomSleep() {
time.Sleep(time.Duration(r.Intn(5)) * time.Millisecond)
}
// trying to fix https://gist.github.com/mrnugget/0eda3b2b53a70fa4a894
// I know they are doing concurrent writes but that's the point of this test
// They want concurrent writes when I was the have the illusion of it
func TestLockedGist(t *testing.T) {
comfyMe, err := New(
WithMemory(),
)
if err != nil {
t.Fatal(err)
}
defer comfyMe.Close()
done := make(chan struct{})
id := comfyMe.New(func(db *sql.DB) (interface{}, error) {
_, err := db.Exec(setupSql)
return nil, err
})
<-comfyMe.WaitForChn(id)
id = comfyMe.New(func(db *sql.DB) (interface{}, error) {
return db.Exec(`INSERT INTO products (product_name) VALUES ("computer")`)
})
<-comfyMe.WaitForChn(id)
// comfyMe.Clear(id)
writesIDs := []uint64{}
readsIDs := []uint64{}
insertWithID := func(id int) func(db *sql.DB) (interface{}, error) {
return func(db *sql.DB) (interface{}, error) {
fmt.Printf("+")
return db.Exec(`INSERT INTO products (product_name) VALUES ( ? )`, fmt.Sprintf("product %d", id))
}
}
go func() {
// writes to users table
for i := 0; i < routines; i++ {
writesIDs = append(writesIDs, comfyMe.New(insertWithID(i)))
randomSleep()
}
done <- struct{}{}
}()
go func() {
// reads from products table, each read in separate go routine
for i := 0; i < routines; i++ {
go func(i, routines int) {
readsIDs = append(readsIDs, comfyMe.New(func(db *sql.DB) (interface{}, error) {
rows, err := db.Query("SELECT * FROM products WHERE id = 5")
if err != nil {
return nil, err
}
defer rows.Close()
cols, _ := rows.Columns()
values := []map[string]interface{}{}
for rows.Next() {
// Create a slice of interface{}'s to represent each column,
// and a second slice to contain pointers to each item in the columns slice.
columns := make([]interface{}, len(cols))
columnPointers := make([]interface{}, len(cols))
for i, _ := range columns {
columnPointers[i] = &columns[i]
}
// Scan the result into the column pointers...
if err := rows.Scan(columnPointers...); err != nil {
return nil, err
}
// Create our map, and retrieve the value for each column from the pointers slice,
// storing it in the map with the name of the column as the key.
m := make(map[string]interface{})
for i, colName := range cols {
val := columnPointers[i].(*interface{})
m[colName] = *val
}
// Outputs: map[columnName:value columnName2:value2 columnName3:value3 ...]
values = append(values, m)
}
fmt.Printf(".")
return values, nil
}))
done <- struct{}{}
}(i, routines)
randomSleep()
}
}()
for i := 0; i < routines+1; i++ {
<-done
}
// for _, v := range readsIDs {
// result := <-comfyMe.WaitForChn(v)
// switch dd := result.(type) {
// case []map[string]interface{}:
// // fmt.Println(dd)
// }
// }
}