From 562f7d9e1d798b0e0d8e83c620690df082fc5139 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Wed, 5 Jul 2023 21:31:37 +0100
Subject: Check params can have trailing comma

---
 .../parser/ParserFunctionDefinitionTests.java        | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'src/test/java')

diff --git a/src/test/java/org/shedlang/compiler/parser/ParserFunctionDefinitionTests.java b/src/test/java/org/shedlang/compiler/parser/ParserFunctionDefinitionTests.java
index 607a06bf..c9961426 100644
--- a/src/test/java/org/shedlang/compiler/parser/ParserFunctionDefinitionTests.java
+++ b/src/test/java/org/shedlang/compiler/parser/ParserFunctionDefinitionTests.java
@@ -146,6 +146,26 @@ public class ParserFunctionDefinitionTests {
         );
     }
 
+    @Test
+    public void paramsCanHaveTrailingComma() {
+        var source = """
+            fun f(a: Int, ) -> Unit {
+            }""";
+
+        var node = parseString(source, Parser::parseNamespaceStatement);
+
+        assertThat(
+            node,
+            isUntypedFunctionDefinitionNode()
+                .withParams(isUntypedParamsNode(
+                    isSequence(
+                        isUntypedParamNode("a", isUntypedTypeLevelReferenceNode("Int"))
+                    ),
+                    isSequence()
+                ))
+        );
+    }
+
     @Test
     public void canParseFunctionWithEffect() {
         var source = """
-- 
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