Test server works for one request at a time.

TODO: Concurrency control

.github/workflows/cargo-test.yml

@@ -59,11 +59,19 @@ jobs:
       - uses: taiki-e/install-action@nextest
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2.6.1
-      - name: cargo test
+      - name: Compile tests
+        run: |-
+          cd "${{ matrix.dir }}"
+          c nextest archive --archive-file tests.tar.zst
+      - name: Start test KCL server
+        run: |-
+          cd "${{ matrix.dir }}"
+          c build --quiet --bin kcl-test-server --workspace && ./target/debug/kcl-test-server
+      - name: Run tests
         shell: bash
         run: |-
           cd "${{ matrix.dir }}"
-          cargo llvm-cov nextest --all --lcov --output-path lcov.info --test-threads=1 --no-fail-fast -P ci 2>&1 | tee /tmp/github-actions.log
+          cargo llvm-cov nextest --all --lcov --output-path lcov.info --test-threads=1 --no-fail-fast -P ci --archive-file t.tar.zst 2>&1 | tee /tmp/github-actions.log
         env:
           KITTYCAD_API_TOKEN: ${{secrets.KITTYCAD_API_TOKEN}}
           RUST_MIN_STACK: 10485760000

src/wasm-lib/.config/nextest.toml

@@ -1,3 +1,8 @@
+# experimental = ["setup-scripts"]
+
+# [script.test-server]
+# command = "just start-test-server"
+
 # Each test can have at most 4 threads, but if its name contains "serial_test_", then it
 # also requires 4 threads.
 # This means such tests run one at a time, with 4 threads.
@@ -14,12 +19,20 @@ slow-timeout = { period = "50s", terminate-after = 5 }
 [[profile.default.overrides]]
 filter = "test(serial_test_)"
 test-group = "serial-integration"
-threads-required = 2
+threads-required = 4
+
+# [[profile.default.scripts]]
+# filter = 'test(serial_test_)'
+# setup = 'test-server'
 
 [[profile.ci.overrides]]
 filter = "test(serial_test_)"
 test-group = "serial-integration"
-threads-required = 2
+threads-required = 4
+
+# [[profile.default.scripts]]
+# filter = 'test(serial_test_)'
+# setup = 'test-server'
 
 [[profile.default.overrides]]
 filter = "test(parser::parser_impl::snapshot_tests)"

src/wasm-lib/Cargo.lock

@@ -1434,6 +1434,18 @@ dependencies = [
  "syn 2.0.66",
 ]
 
+[[package]]
+name = "kcl-test-server"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "hyper",
+ "kcl-lib",
+ "serde",
+ "serde_json",
+ "tokio",
+]
+
 [[package]]
 name = "kittycad"
 version = "0.3.5"
@@ -2492,9 +2504,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.116"
+version = "1.0.117"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e17db7126d17feb94eb3fad46bf1a96b034e8aacbc2e775fe81505f8b0b2813"
+checksum = "455182ea6142b14f93f4bc5320a2b31c1f266b66a4a5c858b013302a5d8cbfc3"
 dependencies = [
  "indexmap 2.2.5",
  "itoa",

src/wasm-lib/Cargo.toml

@@ -17,7 +17,7 @@ kcl-lib = { path = "kcl" }
 kittycad.workspace = true
 serde_json = "1.0.116"
 tokio = { version = "1.38.0", features = ["sync"] }
-toml = "0.8.14"
+toml = "0.8.13"
 uuid = { version = "1.8.0", features = ["v4", "js", "serde"] }
 wasm-bindgen = "0.2.91"
 wasm-bindgen-futures = "0.4.42"
@@ -65,6 +65,7 @@ members = [
 	"derive-docs",
 	"kcl",
 	"kcl-macros",
+	"kcl-test-server",
 ]
 
 [workspace.dependencies]

src/wasm-lib/justfile

@@ -0,0 +1,2 @@
+start-test-server:
+    cargo build --quiet --bin kcl-test-server --workspace && ./target/debug/kcl-test-server

src/wasm-lib/kcl-test-server/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "kcl-test-server"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0.86"
+hyper = { version = "0.14.29", features = ["server"] }
+kcl-lib = { path = "../kcl" }
+serde = { version = "1.0.203", features = ["derive"] }
+serde_json = "1.0.117"
+tokio = { version = "1.38.0", features = ["macros", "rt-multi-thread"] }

src/wasm-lib/kcl-test-server/src/main.rs

@@ -0,0 +1,112 @@
+//! Executes KCL programs.
+//! The server reuses the same engine session for each KCL program it receives.
+use std::net::SocketAddr;
+
+use hyper::header::CONTENT_TYPE;
+use hyper::service::{make_service_fn, service_fn};
+use hyper::{Body, Error, Response, Server};
+use kcl_lib::executor::ExecutorContext;
+use kcl_lib::settings::types::UnitLength;
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    // Parse the CLI arguments.
+    let mut args: Vec<_> = std::env::args().collect();
+    args.reverse();
+    let _process_name = args.pop().unwrap();
+    let listen_on = args.pop().unwrap_or_else(|| "0.0.0.0:3333".to_owned()).parse()?;
+
+    // Run the actual server.
+    start(listen_on).await
+}
+
+#[derive(serde::Deserialize)]
+pub struct RequestBody {
+    kcl_program: String,
+    #[serde(default)]
+    test_name: String,
+}
+
+pub async fn start(listen_on: SocketAddr) -> anyhow::Result<()> {
+    let state = ExecutorContext::new_for_unit_test(UnitLength::Mm).await?;
+    // In hyper, a `MakeService` is basically your server.
+    // It makes a `Service` for each connection, which manages the connection.
+    let make_service = make_service_fn(
+        // This closure is run for each connection.
+        move |_conn_info| {
+            // eprintln!("Connected to a client");
+            let state2 = state.clone();
+            async move {
+                // This is the `Service` which handles the connection.
+                // `service_fn` converts a function which returns a Response
+                // into a `Service`.
+                Ok::<_, Error>(service_fn(move |req| {
+                    // eprintln!("Received a request");
+                    let state3 = state2.clone();
+                    // TODO: Don't let multiple requests through at once.
+                    async move {
+                        let whole_body = hyper::body::to_bytes(req.into_body()).await?;
+                        Ok::<_, Error>(snapshot_endpoint(whole_body.into(), state3).await)
+                    }
+                }))
+            }
+        },
+    );
+    let server = Server::bind(&listen_on).serve(make_service);
+    println!("Listening on {listen_on}");
+    println!("PID is {}", std::process::id());
+    if let Err(e) = server.await {
+        eprintln!("Server error: {e}");
+        return Err(e.into());
+    }
+    Ok(())
+}
+
+/// Execute a KCL program, then respond with a PNG snapshot.
+/// KCL errors (from engine or the executor) respond with HTTP Bad Gateway.
+/// Malformed requests are HTTP Bad Request.
+/// Successful requests contain a PNG as the body.
+async fn snapshot_endpoint(body: Vec<u8>, state3: ExecutorContext) -> Response<Body> {
+    let body = match serde_json::from_slice::<RequestBody>(&body) {
+        Ok(bd) => bd,
+        Err(e) => return bad_request(format!("Invalid request JSON: {e}")),
+    };
+    let RequestBody { kcl_program, test_name } = body;
+    eprintln!("Executing {test_name}");
+    let parser = match kcl_lib::token::lexer(&kcl_program) {
+        Ok(ts) => kcl_lib::parser::Parser::new(ts),
+        Err(e) => return bad_request(format!("tokenization error: {e}")),
+    };
+    let program = match parser.ast() {
+        Ok(pr) => pr,
+        Err(e) => return bad_request(format!("Parse error: {e}")),
+    };
+    if let Err(e) = state3.reset_scene().await {
+        return kcl_err(e);
+    }
+    let snapshot = match state3.execute_and_prepare_snapshot(program).await {
+        Ok(sn) => sn,
+        Err(e) => return kcl_err(e),
+    };
+    eprintln!("Serving response");
+    let png_bytes = snapshot.contents.0;
+    let mut resp = Response::new(Body::from(png_bytes));
+    resp.headers_mut().insert(CONTENT_TYPE, "image/png".parse().unwrap());
+    resp
+}
+
+fn bad_request(msg: String) -> Response<Body> {
+    let mut resp = Response::new(Body::from(msg));
+    *resp.status_mut() = hyper::StatusCode::BAD_REQUEST;
+    resp
+}
+
+fn bad_gateway(msg: String) -> Response<Body> {
+    let mut resp = Response::new(Body::from(msg));
+    *resp.status_mut() = hyper::StatusCode::BAD_GATEWAY;
+    resp
+}
+
+fn kcl_err(err: anyhow::Error) -> Response<Body> {
+    bad_gateway(format!("{err}"))
+}

src/wasm-lib/kcl/src/executor.rs

@@ -15,6 +15,7 @@ use crate::{
     engine::EngineManager,
     errors::{KclError, KclErrorDetails},
     fs::FileManager,
+    settings::types::UnitLength,
     std::{FunctionKind, StdLib},
 };
 
@@ -992,7 +993,7 @@ pub struct ExecutorContext {
 #[derive(Debug, Clone)]
 pub struct ExecutorSettings {
     /// The unit to use in modeling dimensions.
-    pub units: crate::settings::types::UnitLength,
+    pub units: UnitLength,
     /// Highlight edges of 3D objects?
     pub highlight_edges: bool,
     /// Whether or not Screen Space Ambient Occlusion (SSAO) is enabled.
@@ -1083,6 +1084,56 @@ impl ExecutorContext {
         })
     }
 
+    /// For executing unit tests.
+    pub async fn new_for_unit_test(units: UnitLength) -> Result<Self> {
+        let user_agent = concat!(env!("CARGO_PKG_NAME"), ".rs/", env!("CARGO_PKG_VERSION"),);
+        let http_client = reqwest::Client::builder()
+            .user_agent(user_agent)
+            // For file conversions we need this to be long.
+            .timeout(std::time::Duration::from_secs(600))
+            .connect_timeout(std::time::Duration::from_secs(60));
+        let ws_client = reqwest::Client::builder()
+            .user_agent(user_agent)
+            // For file conversions we need this to be long.
+            .timeout(std::time::Duration::from_secs(600))
+            .connect_timeout(std::time::Duration::from_secs(60))
+            .connection_verbose(true)
+            .tcp_keepalive(std::time::Duration::from_secs(600))
+            .http1_only();
+
+        let token = std::env::var("KITTYCAD_API_TOKEN").expect("KITTYCAD_API_TOKEN not set");
+
+        // Create the client.
+        let mut client = kittycad::Client::new_from_reqwest(token, http_client, ws_client);
+        // Set a local engine address if it's set.
+        if let Ok(addr) = std::env::var("LOCAL_ENGINE_ADDR") {
+            client.set_base_url(addr);
+        }
+
+        let ctx = ExecutorContext::new(
+            &client,
+            ExecutorSettings {
+                units,
+                highlight_edges: true,
+                enable_ssao: false,
+            },
+        )
+        .await?;
+        Ok(ctx)
+    }
+
+    /// Clear everything in the scene.
+    pub async fn reset_scene(&self) -> Result<()> {
+        self.engine
+            .send_modeling_cmd(
+                uuid::Uuid::new_v4().into(),
+                SourceRange::default(),
+                kittycad::types::ModelingCmd::SceneClearAll {},
+            )
+            .await?;
+        Ok(())
+    }
+
     /// Perform the execution of a program.
     /// You can optionally pass in some initialization memory.
     /// Kurt uses this for partial execution.
@@ -1309,7 +1360,7 @@ impl ExecutorContext {
     }
 
     /// Update the units for the executor.
-    pub fn update_units(&mut self, units: crate::settings::types::UnitLength) {
+    pub fn update_units(&mut self, units: UnitLength) {
         self.settings.units = units;
     }
 

src/wasm-lib/tests/executor/main.rs

@@ -1,58 +1,39 @@
+use std::io::Cursor;
+
 use anyhow::Result;
-use kcl_lib::{
-    executor::{ExecutorContext, ExecutorSettings},
-    settings::types::UnitLength,
-};
+use image::io::Reader as ImageReader;
+use kcl_lib::{executor::ExecutorContext, settings::types::UnitLength};
+use kittycad::types::TakeSnapshot;
 
-// mod server;
-
-async fn new_context(units: UnitLength) -> Result<ExecutorContext> {
-    let user_agent = concat!(env!("CARGO_PKG_NAME"), ".rs/", env!("CARGO_PKG_VERSION"),);
-    let http_client = reqwest::Client::builder()
-        .user_agent(user_agent)
-        // For file conversions we need this to be long.
-        .timeout(std::time::Duration::from_secs(600))
-        .connect_timeout(std::time::Duration::from_secs(60));
-    let ws_client = reqwest::Client::builder()
-        .user_agent(user_agent)
-        // For file conversions we need this to be long.
-        .timeout(std::time::Duration::from_secs(600))
-        .connect_timeout(std::time::Duration::from_secs(60))
-        .connection_verbose(true)
-        .tcp_keepalive(std::time::Duration::from_secs(600))
-        .http1_only();
-
-    let token = std::env::var("KITTYCAD_API_TOKEN").expect("KITTYCAD_API_TOKEN not set");
-
-    // Create the client.
-    let mut client = kittycad::Client::new_from_reqwest(token, http_client, ws_client);
-    // Set a local engine address if it's set.
-    if let Ok(addr) = std::env::var("LOCAL_ENGINE_ADDR") {
-        client.set_base_url(addr);
-    }
-
-    let ctx = ExecutorContext::new(
-        &client,
-        ExecutorSettings {
-            units,
-            highlight_edges: true,
-            enable_ssao: false,
-        },
-    )
-    .await?;
-    Ok(ctx)
+macro_rules! test_name {
+    () => {{
+        fn f() {}
+        fn type_name_of<T>(_: T) -> &'static str {
+            std::any::type_name::<T>()
+        }
+        let name = type_name_of(f);
+        name.strip_suffix("::f")
+            .unwrap()
+            .strip_suffix("::{{closure}}")
+            .unwrap()
+            .strip_prefix("executor::serial_test_")
+            .unwrap()
+    }};
 }
 
 /// Executes a kcl program and takes a snapshot of the result.
 /// This returns the bytes of the snapshot.
 async fn execute_and_snapshot(code: &str, units: UnitLength) -> Result<image::DynamicImage> {
-    let ctx = new_context(units).await?;
+    let ctx = ExecutorContext::new_for_unit_test(units).await?;
     let tokens = kcl_lib::token::lexer(code)?;
     let parser = kcl_lib::parser::Parser::new(tokens);
     let program = parser.ast()?;
 
     let snapshot = ctx.execute_and_prepare_snapshot(program).await?;
+    to_disk(snapshot)
+}
 
+fn to_disk(snapshot: TakeSnapshot) -> Result<image::DynamicImage> {
     // Create a temporary file to write the output to.
     let output_file = std::env::temp_dir().join(format!("kcl_output_{}.png", uuid::Uuid::new_v4()));
     // Save the snapshot locally, to that temporary file.
@@ -81,28 +62,28 @@ const part002 = startSketchOn(part001, "here")
   |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/sketch_on_face.png", &result, 0.999);
 }
 
 #[tokio::test(flavor = "multi_thread")]
 async fn serial_test_riddle_small() {
     let code = include_str!("inputs/riddle_small.kcl");
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/riddle_small.png", &result, 0.999);
 }
 
 #[tokio::test(flavor = "multi_thread")]
 async fn serial_test_lego() {
     let code = include_str!("inputs/lego.kcl");
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/lego.png", &result, 0.999);
 }
 
 #[tokio::test(flavor = "multi_thread")]
 async fn serial_test_pipe_as_arg() {
     let code = include_str!("inputs/pipe_as_arg.kcl");
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/pipe_as_arg.png", &result, 0.999);
 }
 
@@ -137,14 +118,14 @@ const part002 = startSketchOn(part001, "start")
   |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/sketch_on_face_start.png", &result, 0.999);
 }
 
 #[tokio::test(flavor = "multi_thread")]
 async fn serial_test_mike_stress_lines() {
     let code = include_str!("inputs/mike_stress_test.kcl");
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/mike_stress_test.png", &result, 0.999);
 }
 
@@ -172,7 +153,7 @@ const part002 = startSketchOn(part001, "END")
   |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/sketch_on_face_end.png", &result, 0.999);
 }
 
@@ -200,7 +181,7 @@ const part002 = startSketchOn(part001, "END")
   |> extrude(-5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/sketch_on_face_end_negative_extrude.png",
         &result,
@@ -220,7 +201,7 @@ async fn serial_test_fillet_duplicate_tags() {
     |> fillet({radius: 0.5, tags: ["thing", "thing"]}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -240,7 +221,7 @@ async fn serial_test_basic_fillet_cube_start() {
     |> fillet({radius: 2, tags: ["thing", "thing2"]}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/basic_fillet_cube_start.png", &result, 0.999);
 }
 
@@ -257,7 +238,7 @@ async fn serial_test_basic_fillet_cube_end() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/basic_fillet_cube_end.png", &result, 0.999);
 }
 
@@ -274,7 +255,7 @@ async fn serial_test_basic_fillet_cube_close_opposite() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/basic_fillet_cube_close_opposite.png",
         &result,
@@ -294,7 +275,7 @@ async fn serial_test_basic_fillet_cube_next_adjacent() {
     |> fillet({radius: 2, tags: [getNextAdjacentEdge("thing3", %)]}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/basic_fillet_cube_next_adjacent.png",
         &result,
@@ -314,7 +295,7 @@ async fn serial_test_basic_fillet_cube_previous_adjacent() {
     |> fillet({radius: 2, tags: [getPreviousAdjacentEdge("thing3", %)]}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/basic_fillet_cube_previous_adjacent.png",
         &result,
@@ -339,7 +320,7 @@ async fn serial_test_execute_with_function_sketch() {
 const fnBox = box(3, 6, 10)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/function_sketch.png", &result, 0.999);
 }
 
@@ -359,7 +340,7 @@ async fn serial_test_execute_with_function_sketch_with_position() {
 
 const thing = box([0,0], 3, 6, 10)"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/function_sketch_with_position.png",
         &result,
@@ -380,7 +361,7 @@ async fn serial_test_execute_with_angled_line() {
   |> extrude(4, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/angled_line.png", &result, 0.999);
 }
 
@@ -406,7 +387,7 @@ const bracket = startSketchOn('XY')
   |> extrude(width, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/parametric.png", &result, 0.999);
 }
 
@@ -440,7 +421,7 @@ const bracket = startSketchAt([0, 0])
   |> extrude(width, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/parametric_with_tan_arc.png", &result, 0.999);
 }
 
@@ -455,7 +436,7 @@ async fn serial_test_execute_engine_error_return() {
   |> extrude(4, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -468,7 +449,7 @@ async fn serial_test_execute_i_shape() {
     // This is some code from lee that starts a pipe expression with a variable.
     let code = include_str!("inputs/i_shape.kcl");
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/i_shape.png", &result, 0.999);
 }
 
@@ -477,7 +458,7 @@ async fn serial_test_execute_i_shape() {
 async fn serial_test_execute_pipes_on_pipes() {
     let code = include_str!("inputs/pipes_on_pipes.kcl");
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/pipes_on_pipes.png", &result, 0.999);
 }
 
@@ -485,7 +466,7 @@ async fn serial_test_execute_pipes_on_pipes() {
 async fn serial_test_execute_cylinder() {
     let code = include_str!("inputs/cylinder.kcl");
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/cylinder.png", &result, 0.999);
 }
 
@@ -493,7 +474,7 @@ async fn serial_test_execute_cylinder() {
 async fn serial_test_execute_kittycad_svg() {
     let code = include_str!("inputs/kittycad_svg.kcl");
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/kittycad_svg.png", &result, 0.999);
 }
 
@@ -518,7 +499,7 @@ const pt1 = b1.value[0]
 const pt2 = b2.value[0]
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/member_expression_sketch_group.png",
         &result,
@@ -534,7 +515,7 @@ async fn serial_test_helix_defaults() {
      |> helix({revolutions: 16, angle_start: 0}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/helix_defaults.png", &result, 1.0);
 }
 
@@ -546,7 +527,7 @@ async fn serial_test_helix_defaults_negative_extrude() {
      |> helix({revolutions: 16, angle_start: 0}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/helix_defaults_negative_extrude.png",
         &result,
@@ -562,7 +543,7 @@ async fn serial_test_helix_ccw() {
      |> helix({revolutions: 16, angle_start: 0, ccw: true}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/helix_ccw.png", &result, 1.0);
 }
 
@@ -574,7 +555,7 @@ async fn serial_test_helix_with_length() {
      |> helix({revolutions: 16, angle_start: 0, length: 3}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/helix_with_length.png", &result, 1.0);
 }
 
@@ -589,7 +570,7 @@ async fn serial_test_dimensions_match() {
   |> extrude(10, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/dimensions_match.png", &result, 1.0);
 }
 
@@ -606,7 +587,7 @@ const body = startSketchOn('XY')
       |> extrude(height, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/close_arc.png", &result, 0.999);
 }
 
@@ -632,7 +613,7 @@ box(10, 23, 8)
 let thing = box(-12, -15, 10)
 box(-20, -5, 10)"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/negative_args.png", &result, 0.999);
 }
 
@@ -645,7 +626,7 @@ async fn serial_test_basic_tangential_arc() {
     |> extrude(10, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/tangential_arc.png", &result, 0.999);
 }
 
@@ -658,7 +639,7 @@ async fn serial_test_basic_tangential_arc_with_point() {
     |> extrude(10, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/tangential_arc_with_point.png", &result, 0.999);
 }
 
@@ -671,7 +652,7 @@ async fn serial_test_basic_tangential_arc_to() {
     |> extrude(10, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/tangential_arc_to.png", &result, 0.999);
 }
 
@@ -698,7 +679,7 @@ box(30, 43, 18, '-xy')
 let thing = box(-12, -15, 10, 'yz')
 box(-20, -5, 10, 'xy')"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/different_planes_same_drawing.png",
         &result,
@@ -760,7 +741,7 @@ const part004 = startSketchOn('YZ')
   |> close(%)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/lots_of_planes.png", &result, 0.999);
 }
 
@@ -777,7 +758,7 @@ async fn serial_test_holes() {
   |> extrude(2, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/holes.png", &result, 0.999);
 }
 
@@ -796,7 +777,7 @@ async fn optional_params() {
 
 const thing = other_circle([2, 2], 20)
 "#;
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/optional_params.png", &result, 0.999);
 }
 
@@ -832,7 +813,7 @@ const part = roundedRectangle([0, 0], 20, 20, 4)
   |> extrude(2, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/rounded_with_holes.png", &result, 0.999);
 }
 
@@ -840,7 +821,7 @@ const part = roundedRectangle([0, 0], 20, 20, 4)
 async fn serial_test_top_level_expression() {
     let code = r#"startSketchOn('XY') |> circle([0,0], 22, %) |> extrude(14, %)"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/top_level_expression.png", &result, 0.999);
 }
 
@@ -854,7 +835,7 @@ const part =  startSketchOn('XY')
     |> extrude(1, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/patterns_linear_basic_with_math.png",
         &result,
@@ -870,7 +851,7 @@ async fn serial_test_patterns_linear_basic() {
     |> extrude(1, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/patterns_linear_basic.png", &result, 0.999);
 }
 
@@ -886,7 +867,7 @@ async fn serial_test_patterns_linear_basic_3d() {
     |> patternLinear3d({axis: [1, 0, 1], repetitions: 3, distance: 6}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/patterns_linear_basic_3d.png", &result, 0.999);
 }
 
@@ -898,7 +879,7 @@ async fn serial_test_patterns_linear_basic_negative_distance() {
     |> extrude(1, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/patterns_linear_basic_negative_distance.png",
         &result,
@@ -914,7 +895,7 @@ async fn serial_test_patterns_linear_basic_negative_axis() {
     |> extrude(1, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/patterns_linear_basic_negative_axis.png",
         &result,
@@ -939,7 +920,7 @@ const rectangle = startSketchOn('XY')
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/patterns_linear_basic_holes.png", &result, 0.999);
 }
 
@@ -951,7 +932,7 @@ async fn serial_test_patterns_circular_basic_2d() {
     |> extrude(1, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/patterns_circular_basic_2d.png", &result, 0.999);
 }
 
@@ -967,7 +948,7 @@ async fn serial_test_patterns_circular_basic_3d() {
     |> patternCircular3d({axis: [0,0, 1], center: [-20, -20, -20], repetitions: 40, arcDegrees: 360, rotateDuplicates: false}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/patterns_circular_basic_3d.png", &result, 0.999);
 }
 
@@ -983,7 +964,7 @@ async fn serial_test_patterns_circular_3d_tilted_axis() {
     |> patternCircular3d({axis: [1,1,0], center: [10, 0, 10], repetitions: 10, arcDegrees: 360, rotateDuplicates: true}, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/patterns_circular_3d_tilted_axis.png",
         &result,
@@ -995,7 +976,7 @@ async fn serial_test_patterns_circular_3d_tilted_axis() {
 async fn serial_test_import_file_doesnt_exist() {
     let code = r#"const model = import("thing.obj")"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1007,7 +988,7 @@ async fn serial_test_import_file_doesnt_exist() {
 async fn serial_test_import_obj_with_mtl() {
     let code = r#"const model = import("tests/executor/inputs/cube.obj")"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/import_obj_with_mtl.png", &result, 0.999);
 }
 
@@ -1015,7 +996,7 @@ async fn serial_test_import_obj_with_mtl() {
 async fn serial_test_import_obj_with_mtl_units() {
     let code = r#"const model = import("tests/executor/inputs/cube.obj", {type: "obj", units: "m"})"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/import_obj_with_mtl_units.png", &result, 0.999);
 }
 
@@ -1023,7 +1004,7 @@ async fn serial_test_import_obj_with_mtl_units() {
 async fn serial_test_import_gltf_with_bin() {
     let code = r#"const model = import("tests/executor/inputs/cube.gltf")"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/import_gltf_with_bin.png", &result, 0.999);
 }
 
@@ -1031,7 +1012,7 @@ async fn serial_test_import_gltf_with_bin() {
 async fn serial_test_import_gltf_embedded() {
     let code = r#"const model = import("tests/executor/inputs/cube-embedded.gltf")"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/import_gltf_embedded.png", &result, 0.999);
 }
 
@@ -1039,7 +1020,7 @@ async fn serial_test_import_gltf_embedded() {
 async fn serial_test_import_glb() {
     let code = r#"const model = import("tests/executor/inputs/cube.glb")"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/import_glb.png", &result, 0.999);
 }
 
@@ -1047,7 +1028,7 @@ async fn serial_test_import_glb() {
 async fn serial_test_import_glb_no_assign() {
     let code = r#"import("tests/executor/inputs/cube.glb")"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/import_glb_no_assign.png", &result, 0.999);
 }
 
@@ -1055,7 +1036,7 @@ async fn serial_test_import_glb_no_assign() {
 async fn serial_test_import_ext_doesnt_match() {
     let code = r#"const model = import("tests/executor/inputs/cube.gltf", {type: "obj", units: "m"})"#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1080,7 +1061,7 @@ async fn serial_test_cube_mm() {
 const myCube = cube([0,0], 10)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/cube_mm.png", &result, 1.0);
 }
 
@@ -1213,7 +1194,7 @@ const part002 = startSketchOn(part001, "here")
   |> extrude(1, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
 
     assert!(result.is_err());
     assert_eq!(
@@ -1254,7 +1235,7 @@ const part003 = startSketchOn(part002, "end")
   |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/sketch_on_face_of_face.png", &result, 1.0);
 }
 
@@ -1271,7 +1252,7 @@ async fn serial_test_stdlib_kcl_error_right_code_path() {
   |> extrude(2, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1299,7 +1280,7 @@ const part002 = startSketchOn(part001, "end")
   |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/sketch_on_face_circle.png", &result, 1.0);
 }
 
@@ -1323,7 +1304,7 @@ const part002 = startSketchOn(part001, "end")
   |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/sketch_on_face_circle_tagged.png", &result, 1.0);
 }
 
@@ -1365,7 +1346,7 @@ const part = rectShape([0, 0], 20, 20)
      }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1386,7 +1367,7 @@ async fn serial_test_big_number_angle_to_match_length_x() {
   |> extrude(10, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/big_number_angle_to_match_length_x.png",
         &result,
@@ -1407,7 +1388,7 @@ async fn serial_test_big_number_angle_to_match_length_y() {
   |> extrude(10, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image(
         "tests/executor/outputs/big_number_angle_to_match_length_y.png",
         &result,
@@ -1431,7 +1412,7 @@ async fn serial_test_simple_revolve() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/simple_revolve.png", &result, 1.0);
 }
 
@@ -1451,7 +1432,7 @@ async fn serial_test_simple_revolve_uppercase() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/simple_revolve_uppercase.png", &result, 1.0);
 }
 
@@ -1471,7 +1452,7 @@ async fn serial_test_simple_revolve_negative() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/simple_revolve_negative.png", &result, 1.0);
 }
 
@@ -1491,7 +1472,7 @@ async fn serial_test_revolve_bad_angle_low() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
 
     assert!(result.is_err());
     assert_eq!(
@@ -1516,7 +1497,7 @@ async fn serial_test_revolve_bad_angle_high() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
 
     assert!(result.is_err());
     assert_eq!(
@@ -1541,7 +1522,7 @@ async fn serial_test_simple_revolve_custom_angle() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/simple_revolve_custom_angle.png", &result, 1.0);
 }
 
@@ -1561,7 +1542,7 @@ async fn serial_test_simple_revolve_custom_axis() {
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/simple_revolve_custom_axis.png", &result, 1.0);
 }
 
@@ -1585,7 +1566,7 @@ const sketch001 = startSketchOn(box, "end")
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/revolve_on_edge.png", &result, 1.0);
 }
 
@@ -1609,7 +1590,7 @@ const sketch001 = startSketchOn(box, "revolveAxis")
 
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
 
     assert!(result.is_err());
     assert_eq!(
@@ -1636,7 +1617,7 @@ const sketch001 = startSketchOn(box, "END")
     }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/revolve_on_face_circle_edge.png", &result, 1.0);
 }
 
@@ -1658,7 +1639,7 @@ const sketch001 = startSketchOn(box, "END")
     }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/revolve_on_face_circle.png", &result, 1.0);
 }
 
@@ -1684,7 +1665,7 @@ const sketch001 = startSketchOn(box, "end")
   }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/revolve_on_face.png", &result, 1.0);
 }
 
@@ -1698,7 +1679,7 @@ async fn serial_test_basic_revolve_circle() {
     }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/basic_revolve_circle.png", &result, 1.0);
 }
 
@@ -1725,7 +1706,7 @@ const part002 = startSketchOn(part001, 'end')
     |> extrude(5, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/simple_revolve_sketch_on_edge.png", &result, 1.0);
 }
 
@@ -1786,7 +1767,7 @@ const plumbus1 = make_circle(p, 'b', [0, 0], 2.5)
       }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/plumbus_fillets.png", &result, 1.0);
 }
 
@@ -1794,7 +1775,7 @@ const plumbus1 = make_circle(p, 'b', [0, 0], 2.5)
 async fn serial_test_empty_file_is_ok() {
     let code = r#""#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_ok());
 }
 
@@ -1824,7 +1805,7 @@ async fn serial_test_member_expression_in_params() {
 capScrew([0, 0.5, 0], 50, 37.5, 50, 25)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/member_expression_in_params.png", &result, 1.0);
 }
 
@@ -1869,7 +1850,7 @@ const bracket = startSketchOn('XY')
      }, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1893,7 +1874,7 @@ const secondSketch = startSketchOn(part001, '')
   |> extrude(20, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1924,7 +1905,7 @@ const extrusion = startSketchOn('XY')
   |> extrude(height, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await;
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await;
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
@@ -1942,7 +1923,7 @@ async fn serial_test_xz_plane() {
   |> extrude(5 + 7, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/xz_plane.png", &result, 1.0);
 }
 
@@ -1956,6 +1937,38 @@ async fn serial_test_neg_xz_plane() {
   |> extrude(5 + 7, %)
 "#;
 
-    let result = execute_and_snapshot(code, UnitLength::Mm).await.unwrap();
+    let result = snapshot_on_test_server(code.to_owned(), test_name!()).await.unwrap();
     twenty_twenty::assert_image("tests/executor/outputs/neg_xz_plane.png", &result, 1.0);
 }
+
+async fn snapshot_on_test_server(code: String, test_name: &str) -> Result<image::DynamicImage> {
+    let default_addr = "0.0.0.0:3333";
+    let server_url = std::env::var("TEST_EXECUTOR_ADDR").unwrap_or(default_addr.to_owned());
+    let client = reqwest::Client::new();
+    let body = serde_json::json!({
+      "kcl_program": code,
+      "test_name": test_name,
+    });
+    let body = serde_json::to_vec(&body).unwrap();
+    let resp = match client.post(format!("http://{server_url}")).body(body).send().await {
+        Ok(r) => r,
+        Err(e) if e.is_connect() => {
+            eprintln!("Received a connection error. Is the test server running?");
+            eprintln!("If so, is it running at {server_url}?");
+            panic!("Connection error: {e}");
+        }
+        Err(e) => panic!("{e}"),
+    };
+    let status = resp.status();
+    let bytes = resp.bytes().await?;
+    if status.is_success() {
+        let img = ImageReader::new(Cursor::new(bytes)).with_guessed_format()?.decode()?;
+        Ok(img)
+    } else if status == hyper::StatusCode::BAD_GATEWAY {
+        let err = String::from_utf8(bytes.into()).unwrap();
+        anyhow::bail!("{err}")
+    } else {
+        let err = String::from_utf8(bytes.into()).unwrap();
+        panic!("{err}");
+    }
+}