What is an alternative way to simulate a database ping that doesn't involve using sqlmock?

edit

One alternative way to simulate a database ping is to create a test database connection and try to execute a simple query, such as "SELECT 1". If the query returns successfully, it means that the connection is valid and the database is accessible. Here is an example code snippet using Go and the database/sql package:

import (
    "database/sql"
    "fmt"
    "time"
)

func pingDatabase(db *sql.DB) error {
    // Set a timeout for the query
    timeout := 5 * time.Second
    ctx, cancel := context.WithTimeout(context.Background(), timeout)
    defer cancel()

    // Create a test query
    query := "SELECT 1"

    // Execute the query to test the connection
    err := db.QueryRowContext(ctx, query).Scan(new(int))
    if err != nil {
        return fmt.Errorf("database ping failed: %s", err.Error())
    }
    return nil
}

This code snippet creates a context with a 5-second timeout, creates a test query "SELECT 1", and executes the query using the database connection. If the query returns successfully, the function returns nil. Otherwise, it returns an error indicating that the ping failed. Note that this approach doesn't require any third-party libraries or tools, and it works with any database driver that implements the database/sql interface.