run tests in parallel

Cargo.lock

@@ -449,19 +449,6 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[package]]
-name = "dashmap"
-version = "5.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "978747c1d849a7d2ee5e8adc0159961c48fb7e5db2f06af6723b80123bb53856"
-dependencies = [
- "cfg-if",
- "hashbrown 0.14.2",
- "lock_api",
- "once_cell",
- "parking_lot_core",
-]
-
 [[package]]
 name = "derive_builder"
 version = "0.12.0"
@@ -696,7 +683,6 @@ dependencies = [
  "rand",
  "reqwest",
  "serde",
- "serial_test",
  "sha2",
  "tokio",
  "tracing",
@@ -1880,31 +1866,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "serial_test"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e56dd856803e253c8f298af3f4d7eb0ae5e23a737252cd90bb4f3b435033b2d"
-dependencies = [
- "dashmap",
- "futures",
- "lazy_static",
- "log",
- "parking_lot",
- "serial_test_derive",
-]
-
-[[package]]
-name = "serial_test_derive"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91d129178576168c589c9ec973feedf7d3126c01ac2bf08795109aa35b69fb8f"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.39",
-]
-
 [[package]]
 name = "sha1"
 version = "0.10.6"

Cargo.toml

@@ -28,4 +28,3 @@ url = "2.4.1"
 once_cell = "1.18.0"
 pretty_assertions = "1.4.0"
 reqwest = "0.11.22"
-serial_test = "2.0.0"

tests/common.rs

@@ -11,8 +11,10 @@ use serde::de::Deserialize;
 use serde::ser::Serialize;
 use std::env::current_dir;
 use std::process::{Command, Stdio};
+use std::sync::atomic::{AtomicI32, Ordering};
 use std::sync::Once;
-use std::thread::spawn;
+use std::thread::{sleep, spawn};
+use std::time::Duration;
 use tokio::task::JoinHandle;
 use tracing::log::LevelFilter;
 use url::Url;
@@ -36,9 +38,21 @@ impl TestData {
                 .init();
         });
 
-        let alpha_db_path = generate_db_path("alpha");
-        let beta_db_path = generate_db_path("beta");
-        let gamma_db_path = generate_db_path("gamma");
+        // Run things on different ports and db paths to allow parallel tests
+        static COUNTER: AtomicI32 = AtomicI32::new(0);
+        let current_run = COUNTER.fetch_add(1, Ordering::Relaxed);
+
+        // Give each test a moment to start its postgres databases
+        sleep(Duration::from_millis(current_run as u64 * 500));
+
+        let first_port = 8000 + (current_run * 3);
+        let port_alpha = first_port;
+        let port_beta = first_port + 1;
+        let port_gamma = first_port + 2;
+
+        let alpha_db_path = generate_db_path("alpha", port_alpha);
+        let beta_db_path = generate_db_path("beta", port_beta);
+        let gamma_db_path = generate_db_path("gamma", port_gamma);
 
         // initialize postgres databases in parallel because its slow
         for j in [
@@ -50,9 +64,9 @@ impl TestData {
         }
 
         Self {
-            alpha: FediwikiInstance::start(alpha_db_path, 8131),
-            beta: FediwikiInstance::start(beta_db_path, 8132),
-            gamma: FediwikiInstance::start(gamma_db_path, 8133),
+            alpha: FediwikiInstance::start(alpha_db_path, port_alpha),
+            beta: FediwikiInstance::start(beta_db_path, port_beta),
+            gamma: FediwikiInstance::start(gamma_db_path, port_gamma),
         }
     }
 
@@ -64,8 +78,12 @@ impl TestData {
     }
 }
 
-fn generate_db_path(name: &'static str) -> String {
-    format!("{}/target/test_db/{name}", current_dir().unwrap().display())
+/// Generate a unique db path for each postgres so that tests can run in parallel.
+fn generate_db_path(name: &'static str, port: i32) -> String {
+    format!(
+        "{}/target/test_db/{name}-{port}",
+        current_dir().unwrap().display()
+    )
 }
 
 pub struct FediwikiInstance {

tests/test.rs

@@ -15,11 +15,9 @@ use fediwiki::error::MyResult;
 
 use fediwiki::federation::objects::instance::DbInstance;
 use pretty_assertions::{assert_eq, assert_ne};
-use serial_test::serial;
 use url::Url;
 
 #[tokio::test]
-#[serial]
 async fn test_create_read_and_edit_article() -> MyResult<()> {
     let data = TestData::start();
 
@@ -62,7 +60,6 @@ async fn test_create_read_and_edit_article() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_create_duplicate_article() -> MyResult<()> {
     let data = TestData::start();
 
@@ -79,7 +76,6 @@ async fn test_create_duplicate_article() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_follow_instance() -> MyResult<()> {
     let data = TestData::start();
 
@@ -102,7 +98,6 @@ async fn test_follow_instance() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_synchronize_articles() -> MyResult<()> {
     let data = TestData::start();
 
@@ -149,7 +144,6 @@ async fn test_synchronize_articles() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_edit_local_article() -> MyResult<()> {
     let data = TestData::start();
 
@@ -193,7 +187,6 @@ async fn test_edit_local_article() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_edit_remote_article() -> MyResult<()> {
     let data = TestData::start();
 
@@ -246,7 +239,6 @@ async fn test_edit_remote_article() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_local_edit_conflict() -> MyResult<()> {
     let data = TestData::start();
 
@@ -301,7 +293,6 @@ async fn test_local_edit_conflict() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_federated_edit_conflict() -> MyResult<()> {
     let data = TestData::start();
 
@@ -383,7 +374,6 @@ async fn test_federated_edit_conflict() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_overlapping_edits_no_conflict() -> MyResult<()> {
     let data = TestData::start();
 
@@ -422,7 +412,6 @@ async fn test_overlapping_edits_no_conflict() -> MyResult<()> {
 }
 
 #[tokio::test]
-#[serial]
 async fn test_fork_article() -> MyResult<()> {
     let data = TestData::start();