Improve diffing

crates/xtask/Cargo.toml

@@ -42,3 +42,4 @@ tracing = "0.1.41"
 tracing-subscriber = "0.3.19"
 tracing-trace = { version = "0.1.0", path = "../tracing-trace" }
 uuid = { version = "1.17.0", features = ["v7", "serde"] }
+similar-asserts = "1.7.0"

crates/xtask/src/bench/workload.rs

@@ -129,7 +129,7 @@ async fn execute_run(
     run_number: u16,
 ) -> anyhow::Result<tokio::task::JoinHandle<anyhow::Result<std::fs::File>>> {
     delete_db().await;
-    
+
     let meilisearch = start_meili(
         meili_client,
         master_key,

crates/xtask/src/common/command.rs

@@ -7,6 +7,7 @@ use anyhow::{bail, Context as _};
 use reqwest::StatusCode;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
+use similar_asserts::SimpleDiff;
 
 use crate::common::assets::{fetch_asset, Asset};
 use crate::common::client::{Client, Method};
@@ -92,8 +93,8 @@ async fn run_batch(
 
     let mut tasks = Vec::with_capacity(batch.len());
     for batch in batch {
-        let client2 = Arc::clone(&client);
-        let assets2 = Arc::clone(&assets);
+        let client2 = Arc::clone(client);
+        let assets2 = Arc::clone(assets);
         tasks.push(tokio::spawn(async move {
             run(&client2, &batch, &assets2, asset_folder, return_response).await
         }));
@@ -112,7 +113,7 @@ async fn run_batch(
     match sync {
         SyncMode::DontWait => {}
         SyncMode::WaitForResponse => {}
-        SyncMode::WaitForTask => wait_for_tasks(&client).await?,
+        SyncMode::WaitForTask => wait_for_tasks(client).await?,
     }
 
     Ok(outputs)
@@ -226,7 +227,12 @@ pub async fn run(
             .context("could not deserialize response as JSON")
             .context("parsing response when checking expected response")?;
         if &response != expected_response {
-            bail!("unexpected response: got '{response}', expected '{expected_response}'");
+            let expected_pretty = serde_json::to_string_pretty(expected_response)
+                .context("serializing expected response as pretty JSON")?;
+            let response_pretty = serde_json::to_string_pretty(&response)
+                .context("serializing response as pretty JSON")?;
+            let diff = SimpleDiff::from_str(&expected_pretty, &response_pretty, "expected", "got");
+            bail!("unexpected response:\n{diff}");
         }
     }
 

crates/xtask/src/test/versions.rs

@@ -43,7 +43,8 @@ impl VersionOrLatest {
     pub fn binary_path(&self, asset_folder: &str) -> anyhow::Result<Option<PathBuf>> {
         match self {
             VersionOrLatest::Version(version) => {
-                let mut asset_folder: PathBuf = asset_folder.parse().context("parsing asset folder")?;
+                let mut asset_folder: PathBuf =
+                    asset_folder.parse().context("parsing asset folder")?;
                 let arch = get_arch()?;
                 let local_filename = format!("meilisearch-{version}-{arch}");
                 asset_folder.push(local_filename);

crates/xtask/src/test/workload.rs

@@ -124,7 +124,8 @@ impl TestWorkload {
                         &[String::from("--experimental-dumpless-upgrade")],
                         &self.name,
                         binary_path.as_deref(),
-                    ).await?;
+                    )
+                    .await?;
                     tracing::info!("Upgraded to {version}");
                 }
             }