fix variable in pipe start (#1932)

Signed-off-by: Jess Frazelle <github@jessfraz.com>

src/wasm-lib/tests/executor/inputs/i_shape.kcl

@@ -0,0 +1,51 @@
+let d_wrist_circumference = [22.8, 10.7, 16.4, 18.5]
+let width = d_wrist_circumference[0] + d_wrist_circumference[1] + d_wrist_circumference[2] + d_wrist_circumference[3]
+let length = 120.0
+let hand_thickness = 24.0
+let corner_radius = 5.0
+
+// At first I thought this was going to be symmetric,
+// but I measured intentionally to not be symmetric,
+// because your wrist isn't a perfect cylindrical surface
+let brace_base = startSketchAt([corner_radius, 0])
+  |> line([width - corner_radius, 0.0], %)
+  |> tangentialArc([corner_radius, corner_radius], %)
+  |> yLine(25.0 - corner_radius, %)
+  |> tangentialArc([-corner_radius, corner_radius], %)
+  |> xLine(-(d_wrist_circumference[0] - (corner_radius * 2)), %)
+  |> tangentialArc([-corner_radius, corner_radius], %)
+  |> yLine(length - 25.0 - 23.0 - (corner_radius * 2), %)
+  |> tangentialArc([corner_radius, corner_radius], %)
+  |> xLine(15.0 - (corner_radius * 2), %)
+  |> tangentialArc([corner_radius, corner_radius], %)
+  |> yLine(23.0 - corner_radius, %)
+  |> tangentialArc([-corner_radius, corner_radius], %)
+  |> xLine(-(hand_thickness + 15.0 + 15.0 - (corner_radius * 2)), %)
+  |> tangentialArc([-corner_radius, -corner_radius], %)
+  |> yLine(-(23.0 - corner_radius), %)
+  |> tangentialArc([corner_radius, -corner_radius], %)
+  |> xLine(15.0 - (corner_radius * 2), %)
+  |> tangentialArc([corner_radius, -corner_radius], %)
+  |> yLine(-(length - 25.0 - 23.0 - (corner_radius * 2)), %)
+  |> tangentialArc([-corner_radius, -corner_radius], %)
+  |> xLine(-(d_wrist_circumference[1] + d_wrist_circumference[2] + d_wrist_circumference[3] - hand_thickness - corner_radius), %)
+  |> tangentialArc([-corner_radius, -corner_radius], %)
+  |> yLine(-(25.0 - corner_radius), %)
+  |> tangentialArc([corner_radius, -corner_radius], %)
+  |> close(%)
+
+let inner = startSketchAt([0, 0])
+  |> xLine(1.0, %)
+  |> tangentialArc([corner_radius, corner_radius], %)
+  |> yLine(25.0 - (corner_radius * 2), %)
+  |> tangentialArc([-corner_radius, corner_radius], %)
+  |> xLine(-1.0, %)
+  |> tangentialArc([-corner_radius, -corner_radius], %)
+  |> yLine(-(25.0 - (corner_radius * 2)), %)
+  |> tangentialArc([corner_radius, -corner_radius], %)
+  |> close(%)
+
+let final = brace_base
+  |> hole(inner, %)
+  |> extrude(3.0, %)
+

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

@@ -481,6 +481,17 @@ async fn serial_test_execute_engine_error_return() {
     );
 }
 
+#[tokio::test(flavor = "multi_thread")]
+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, kittycad::types::UnitLength::Mm)
+        .await
+        .unwrap();
+    twenty_twenty::assert_image("tests/executor/outputs/i_shape.png", &result, 0.999);
+}
+
 #[tokio::test(flavor = "multi_thread")]
 #[ignore] // ignore until more stack fixes
 async fn serial_test_execute_pipes_on_pipes() {