Pretty print failing tests using Rust notation

Signed-off-by: Didier Wenzek <[email protected]>

Author: didier-wenzek

Cargo.lock

@@ -155,6 +155,7 @@ rand = "0.8"
 rcgen = { version = "0.12", features = ["pem", "zeroize"] }
 regex = "1.4"
 reqwest = { version = "0.12", default-features = false }
+ron = "0.8"
 rpassword = "5.0"
 rstest = "0.16.0"
 rumqttc = { git = "https://github.com/jarhodes314/rumqtt", rev = "8c489faf6af910956c97b55587ff3ecb2ac4e96f" }

Cargo.toml

@@ -60,6 +60,7 @@ bytes = { workspace = true }
 http-body = { workspace = true }
 proptest = { workspace = true }
 rcgen = { workspace = true }
+ron = { workspace = true }
 rustls-pemfile = { workspace = true }
 tedge_actors = { workspace = true, features = ["test-helpers"] }
 tedge_mqtt_ext = { workspace = true, features = ["test-helpers"] }

crates/core/tedge_agent/Cargo.toml

@@ -196,19 +196,23 @@ mod model {
 
             for command in &self.0 {
                 f.write_str(sep)?;
-                f.write_str(format!("{command}").as_str())?;
                 if f.alternate() {
-                    sep = "\n    "; // On test unit output, print each command on a new line
+                    // On test unit output, print each command on a new line (using Rust notation)
+                    sep = "\n    ";
+                    f.write_str(format!("// {command}{sep}").as_str())?;
+                    f.write_str(&ron::to_string(&command).unwrap())?;
                 } else {
-                    sep = " && "; // On proptest log, print all the commands on a single line
+                    // On proptest log, print all the commands on a single line (using shell commands)
+                    sep = " && ";
+                    f.write_str(format!("{command}").as_str())?;
                 }
             }
             f.write_str("\n")?;
             Ok(())
         }
     }
 
-    #[derive(Clone)]
+    #[derive(Clone, serde::Serialize)]
     pub struct Command {
         pub protocol: Protocol,
         pub action: Action,
@@ -256,14 +260,14 @@ mod model {
         }
     }
 
-    #[derive(Debug, Copy, Clone, Eq, PartialEq)]
+    #[derive(Debug, Copy, Clone, Eq, PartialEq, serde::Serialize)]
     #[allow(clippy::upper_case_acronyms)]
     pub enum Protocol {
         HTTP,
         MQTT,
     }
 
-    #[derive(Debug, Clone)]
+    #[derive(Debug, Clone, serde::Serialize)]
     pub enum Action {
         AddDevice {
             topic: String,