1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java b/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java
index 9ca59e7d..cfb9bd56 100644
--- a/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java
+++ b/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java
@@ -1,6 +1,7 @@
 package org.shedlang.compiler.patio;
 
 import org.junit.jupiter.api.Test;
+import org.shedlang.compiler.patio.ast.PatioFunctionDeclaration;
 import org.shedlang.compiler.patio.ast.PatioFunctionDefinition;
 import org.shedlang.compiler.patio.ast.PatioVisibility;
 import org.shedlang.compiler.patio.ast.types.PatioTypes;
@@ -55,6 +56,27 @@ public class PatioSerializerTests {
     }
 
     @Test
+    public void canSerializeFunctionDeclaration() {
+        var element = PatioFunctionDeclaration.builder()
+            .withName("f")
+            .addParam(Patio.local("param1", PatioTypes.INT))
+            .addParam(Patio.local("param2", PatioTypes.DATA_POINTER))
+            .withReturnType(PatioTypes.VOID)
+            .build();
+
+        var string = PatioTesting.serializeCompilationUnitElement(element);
+
+        assertThat(string, equalTo("""
+            (
+                function-decl
+                "f"
+                params=(("param1" int) ("param2" data-ptr))
+                return-type=void
+            )"""
+        ));
+    }
+
+    @Test
     public void canSerializeFunctionDefinition() {
         var element = PatioFunctionDefinition.builder()
             .withName("f")