add test that should reject the bad code deploy

tests/runtimes/python/python.py

@@ -76,11 +76,4 @@ def python(g: Graph):
             t.boolean(),
             infinite_loop,
         ).with_policy(public),
-        testValidation=python.import_(
-            t.struct({"name": t.string()}),
-            t.string(),
-            module="py/hello_fail.py.py",
-            deps=["py/nested/dep_fail.py"],
-            name="sayHello",
-        ).with_policy(public),
     )

tests/runtimes/python/python_test.ts

@@ -1,7 +1,7 @@
 // Copyright Metatype OÜ, licensed under the Mozilla Public License Version 2.0.
 // SPDX-License-Identifier: MPL-2.0
 
-import { assert, assertEquals } from "@std/assert";
+import { assert, assertEquals, assertRejects } from "@std/assert";
 import { gql, Meta } from "test-utils/mod.ts";
 import { WitWireMessenger } from "@metatype/typegate/runtimes/wit_wire/mod.ts";
 import { QueryEngine } from "@metatype/typegate/engine/query_engine.ts";
@@ -484,18 +484,11 @@ Meta.test(
     name: "Python code validation on deploy",
   },
   async (t) => {
-    const e = await t.engine(
-      "runtimes/python/python.py",
-    );
-
     await t.should("fail on validation", async () => {
-      await gql`
-        query {
-          testValidation(name: "Loyd")
-        }
-      `
-        .expectErrorContains("Python code validation error")
-        .on(e);
+      await assertRejects(
+        async () => await t.engine("runtimes/python/python_validation.py"),
+        "ValidationError",
+      );
     });
   },
 );

tests/runtimes/python/python_validation.py

@@ -0,0 +1,26 @@
+# Copyright Metatype OÜ, licensed under the Mozilla Public License Version 2.0.
+# SPDX-License-Identifier: MPL-2.0
+
+from typegraph.graph.typegraph import Graph
+from typegraph.policy import Policy
+from typegraph.runtimes.python import PythonRuntime
+
+from typegraph import t, typegraph
+
+
+@typegraph()
+def python(g: Graph):
+    public = Policy.public()
+    python = PythonRuntime()
+
+    g.expose(
+        testValidation=(
+            python.import_(
+                t.struct({"name": t.string()}),
+                t.string(),
+                module="py/hello_fail.py",
+                deps=["py/nested/dep_fail.py"],
+                name="sayHello",
+            ).with_policy(public),
+        )
+    )