Allow resume statements without expression

1 files changed, 15 insertions, 2 deletions

diff --git a/src/test/java/org/shedlang/compiler/parser/ParserFunctionResumeTests.java b/src/test/java/org/shedlang/compiler/parser/ParserFunctionResumeTests.java
index c581a4f9..8e134656 100644
--- a/src/test/java/org/shedlang/compiler/parser/ParserFunctionResumeTests.java
+++ b/src/test/java/org/shedlang/compiler/parser/ParserFunctionResumeTests.java
@@ -5,14 +5,27 @@ import org.junit.jupiter.api.Test;
 import static org.shedlang.compiler.ast.untyped.UntypedNodeMatchers.*;
 import static org.shedlang.compiler.parser.ParserTesting.parseString;
 import static org.zwobble.precisely.AssertThat.assertThat;
+import static org.zwobble.precisely.Matchers.isOptionalEmpty;
+import static org.zwobble.precisely.Matchers.isOptionalOf;
 
 public class ParserFunctionResumeTests {
     @Test
-    public void canParseResume() {
+    public void canParseResumeWithExpression() {
         var source = "resume x;";
 
         var node = parseString(source, Parser::parseFunctionStatement);
 
-        assertThat(node, isUntypedResumeNode(isUntypedReferenceNode("x")));
+        assertThat(node, isUntypedResumeNode(isOptionalOf(
+            isUntypedReferenceNode("x"))
+        ));
+    }
+
+    @Test
+    public void canParseResumeWithoutExpression() {
+        var source = "resume;";
+
+        var node = parseString(source, Parser::parseFunctionStatement);
+
+        assertThat(node, isUntypedResumeNode(isOptionalEmpty()));
     }
 }