Test/add api tests

api/Cargo.toml

@@ -23,6 +23,8 @@ rand = "0.8.4"
 tokio = { version = "1.0", features = ["rt-multi-thread", "macros", "process"] }
 tonic = { version = "0.10.2", features = ["transport"] }
 prost = "0.12.1"
+async-trait = "0.1.74"
+mockall = "0.11.4"
 
 [build-dependencies]
 tonic-build = { version = "0.10.2", features = ["prost"] }

api/src/api/mod.rs

@@ -4,40 +4,29 @@ use actix_web::{post, web, Responder};
 use log::{debug, error, info, trace, warn};
 
 use crate::{
-    api::service::LambdoApiService,
+    api::service::{LambdoApiService, LambdoApiServiceTrait},
     model::{RunRequest, RunResponse},
     vm_manager::{self, grpc_definitions::ExecuteResponse},
 };
 use std::error::Error;
 
-#[post("/run")]
-async fn run(
-    run_body: web::Json<RunRequest>,
-    service: web::Data<LambdoApiService>,
-) -> Result<impl Responder, Box<dyn Error>> {
-    debug!(
-        "Received code execution request from http (language: {}, version: {})",
-        run_body.language, run_body.version
-    );
-    trace!("Request body: {:?}", run_body);
-
-    let response = service.run_code(run_body.into_inner()).await;
+async fn run_code(run_resquest: RunRequest, service: &dyn LambdoApiServiceTrait) -> RunResponse {
+    let response = service.run_code(run_resquest).await;
 
-    let response = match response {
+    match response {
         Ok(response) => {
             info!("Execution ended for {:?}", response.id);
             trace!("Response: {:?}", response);
             parse_response(response)
         }
-        // for the moment just signal an internal server error
         Err(e) => match e {
             vm_manager::Error::Timeout => {
                 warn!("Timeout while executing code");
-                return Ok(web::Json(RunResponse {
+                RunResponse {
                     status: 128,
                     stdout: "".to_string(),
                     stderr: "Timeout".to_string(),
-                }));
+                }
             }
             _ => {
                 error!("Error while executing code: {:?}", e);
@@ -48,12 +37,35 @@ async fn run(
                 }
             }
         },
-    };
+    }
+}
+
+#[post("/run")]
+pub async fn post_run_route(
+    run_body: web::Json<RunRequest>,
+    api_service: web::Data<LambdoApiService>,
+) -> Result<impl Responder, Box<dyn Error>> {
+    debug!(
+        "Received code execution request from http (language: {}, version: {})",
+        run_body.language, run_body.version
+    );
+    trace!("Request body: {:?}", run_body);
+
+    let service = api_service.get_ref();
+    let result = run_code(run_body.into_inner(), service);
 
-    Ok(web::Json(response))
+    Ok(web::Json(result.await))
 }
 
 fn parse_response(response: ExecuteResponse) -> RunResponse {
+    if response.steps.is_empty() {
+        return RunResponse {
+            status: 1,
+            stdout: "".to_string(),
+            stderr: "Nothing was run".to_string(),
+        };
+    }
+
     let mut stdout = String::new();
     let mut stderr = String::new();
     for step in response.steps.as_slice() {
@@ -67,8 +79,137 @@ fn parse_response(response: ExecuteResponse) -> RunResponse {
         status: response.steps[response.steps.len() - 1]
             .exit_code
             .try_into()
-            .unwrap(),
+            .unwrap_or(1),
         stdout,
         stderr,
     }
 }
+
+#[cfg(test)]
+mod test {
+    use std::vec;
+
+    use crate::{
+        api::{parse_response, run_code},
+        model::RunRequest,
+        vm_manager::grpc_definitions::{ExecuteResponse, ExecuteResponseStep, FileModel},
+    };
+
+    use super::service::MockLambdoApiServiceTrait;
+
+    #[test]
+    fn test_parse_response_stdout() {
+        let response = ExecuteResponse {
+            id: "test".to_string(),
+            steps: vec![
+                ExecuteResponseStep {
+                    command: "echo Hello".to_string(),
+                    stdout: "Hello".to_string(),
+                    stderr: "".to_string(),
+                    exit_code: 0,
+                },
+                ExecuteResponseStep {
+                    command: "echo World".to_string(),
+                    stdout: "World".to_string(),
+                    stderr: "".to_string(),
+                    exit_code: 0,
+                },
+            ],
+        };
+
+        let parsed = parse_response(response);
+
+        assert_eq!(parsed.stdout, "HelloWorld");
+        assert_eq!(parsed.stderr, "");
+        assert_eq!(parsed.status, 0);
+    }
+
+    #[test]
+    fn test_parse_response_with_error() {
+        let response = ExecuteResponse {
+            id: "test".to_string(),
+            steps: vec![
+                ExecuteResponseStep {
+                    command: "echo Hello".to_string(),
+                    stdout: "Hello".to_string(),
+                    stderr: "".to_string(),
+                    exit_code: 0,
+                },
+                ExecuteResponseStep {
+                    command: "echo World".to_string(),
+                    stdout: "".to_string(),
+                    stderr: "Error".to_string(),
+                    exit_code: 1,
+                },
+            ],
+        };
+
+        let parsed = parse_response(response);
+
+        assert_eq!(parsed.stdout, "Hello");
+        assert_eq!(parsed.stderr, "Error");
+        assert_eq!(parsed.status, 1);
+    }
+
+    #[tokio::test]
+    async fn test_run_code_with_no_steps() {
+        let mut mock_service = MockLambdoApiServiceTrait::new();
+        mock_service.expect_run_code().once().returning(|_| {
+            Ok(ExecuteResponse {
+                id: "test".to_string(),
+                steps: vec![],
+            })
+        });
+
+        let run_request = RunRequest {
+            language: "Node".to_string(),
+            version: "1".to_string(),
+            code: vec![],
+            input: "".to_string(),
+        };
+
+        let response = run_code(run_request, &mock_service).await;
+        assert_eq!(response.status, 1);
+        assert_eq!(response.stdout, "");
+        assert_eq!(response.stderr, "Nothing was run");
+    }
+
+    #[tokio::test]
+    async fn test_run_with_steps() {
+        let mut mock_service = MockLambdoApiServiceTrait::new();
+        mock_service.expect_run_code().once().returning(|_| {
+            Ok(ExecuteResponse {
+                id: "test".to_string(),
+                steps: vec![
+                    ExecuteResponseStep {
+                        command: "echo Hello".to_string(),
+                        stdout: "Hello".to_string(),
+                        stderr: "".to_string(),
+                        exit_code: 0,
+                    },
+                    ExecuteResponseStep {
+                        command: "echo World".to_string(),
+                        stdout: "World".to_string(),
+                        stderr: "".to_string(),
+                        exit_code: 0,
+                    },
+                ],
+            })
+        });
+
+        let run_request = RunRequest {
+            language: "Node".to_string(),
+            version: "1".to_string(),
+            code: vec![FileModel {
+                filename: "test.js".to_string(),
+                content: "console.log('Hello World')".to_string(),
+            }],
+            input: "test.js".to_string(),
+        };
+
+        let response = run_code(run_request, &mock_service).await;
+        assert_eq!(response.status, 0);
+        assert_eq!(response.stdout, "HelloWorld");
+        assert_eq!(response.stderr, "");
+    }
+}