1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerStructDefinitionTests.java b/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerStructDefinitionTests.java
index 325f7ea7..818c026f 100644
--- a/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerStructDefinitionTests.java
+++ b/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerStructDefinitionTests.java
@@ -5,12 +5,14 @@ import org.shedlang.compiler.ast.typed.TypedNamespaceStatementNode;
 import org.shedlang.compiler.ast.untyped.Untyped;
 import org.shedlang.compiler.ast.untyped.UntypedNamespaceStatementNode;
 import org.shedlang.compiler.ast.untyped.UntypedStructDefinitionNode;
+import org.shedlang.compiler.typechecker.errors.CannotDefineStructOutsideOfNamespace;
 import org.shedlang.compiler.types.NamespaceName;
 import org.shedlang.compiler.types.Types;
 import org.shedlang.compiler.util.P;
 
 import java.util.Map;
 
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.shedlang.compiler.ast.typed.TypedNodeMatchers.*;
 import static org.zwobble.precisely.AssertThat.assertThat;
 import static org.zwobble.precisely.Matchers.*;
@@ -19,6 +21,19 @@ public class TypeCheckerStructDefinitionTests {
     private static final NamespaceName NAMESPACE_NAME = NamespaceName.of("Example");
 
     @Test
+    public void whenOutsideOfNamespaceThenErrorIsThrown() {
+        var untyped = UntypedStructDefinitionNode.builder()
+            .withName("ExampleStruct")
+            .build();
+        var context = TypeCheckerContext.EMPTY;
+
+        assertThrows(
+            CannotDefineStructOutsideOfNamespace.class,
+            () -> TypeChecker.typeCheckNamespaceStatement(untyped).typeCheckAllPhases(context)
+        );
+    }
+
+    @Test
     public void canTypeCheckStructDefinitionWithNoFields() {
         var untyped = UntypedStructDefinitionNode.builder()
             .withName("ExampleStruct")