mirror of
https://github.com/LukeMathWalker/zero-to-production.git
synced 2024-12-12 11:06:33 +00:00
87 lines
2.9 KiB
Rust
87 lines
2.9 KiB
Rust
use once_cell::sync::Lazy;
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use sqlx::{Connection, Executor, PgConnection, PgPool};
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use uuid::Uuid;
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use zero2prod::configuration::{get_configuration, DatabaseSettings};
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use zero2prod::startup::{get_connection_pool, Application};
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use zero2prod::telemetry::{get_subscriber, init_subscriber};
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// Ensure that the `tracing` stack is only initialised once using `once_cell`
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static TRACING: Lazy<()> = Lazy::new(|| {
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let default_filter_level = "info".to_string();
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let subscriber_name = "test".to_string();
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if std::env::var("TEST_LOG").is_ok() {
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let subscriber = get_subscriber(subscriber_name, default_filter_level, std::io::stdout);
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init_subscriber(subscriber);
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} else {
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let subscriber = get_subscriber(subscriber_name, default_filter_level, std::io::sink);
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init_subscriber(subscriber);
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};
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});
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pub struct TestApp {
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pub address: String,
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pub db_pool: PgPool,
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}
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impl TestApp {
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pub async fn post_subscriptions(&self, body: String) -> reqwest::Response {
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reqwest::Client::new()
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.post(&format!("{}/subscriptions", &self.address))
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.header("Content-Type", "application/x-www-form-urlencoded")
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.body(body)
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.send()
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.await
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.expect("Failed to execute request.")
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}
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}
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pub async fn spawn_app() -> TestApp {
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Lazy::force(&TRACING);
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// Randomise configuration to ensure test isolation
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let configuration = {
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let mut c = get_configuration().expect("Failed to read configuration.");
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// Use a different database for each test case
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c.database.database_name = Uuid::new_v4().to_string();
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// Use a random OS port
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c.application.port = 0;
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c
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};
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// Create and migrate the database
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configure_database(&configuration.database).await;
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// Launch the application as a background task
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let application = Application::build(configuration.clone())
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.await
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.expect("Failed to build application.");
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let address = format!("http://localhost:{}", application.port());
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let _ = tokio::spawn(application.run_until_stopped());
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TestApp {
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address,
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db_pool: get_connection_pool(&configuration.database),
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}
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}
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async fn configure_database(config: &DatabaseSettings) -> PgPool {
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// Create database
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let mut connection = PgConnection::connect_with(&config.without_db())
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.await
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.expect("Failed to connect to Postgres");
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connection
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.execute(&*format!(r#"CREATE DATABASE "{}";"#, config.database_name))
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.await
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.expect("Failed to create database.");
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// Migrate database
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let connection_pool = PgPool::connect_with(config.with_db())
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.await
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.expect("Failed to connect to Postgres.");
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sqlx::migrate!("./migrations")
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.run(&connection_pool)
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.await
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.expect("Failed to migrate the database");
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connection_pool
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}
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