From ab8b25ab08620df482d88c0e729fb9f53bca9f61 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Tue, 6 Jun 2023 19:55:11 +0100
Subject: Parse positional arguments

---
 .../shedlang/compiler/parser/ParserCallTests.java  | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)

(limited to 'src/test/java')

diff --git a/src/test/java/org/shedlang/compiler/parser/ParserCallTests.java b/src/test/java/org/shedlang/compiler/parser/ParserCallTests.java
index df7cbfea..5345414f 100644
--- a/src/test/java/org/shedlang/compiler/parser/ParserCallTests.java
+++ b/src/test/java/org/shedlang/compiler/parser/ParserCallTests.java
@@ -39,4 +39,63 @@ public class ParserCallTests {
                 .withHasEffects(true)
         );
     }
+
+    @Test
+    public void canParseCallWithSinglePositionalArg() {
+        var source = "f(a)";
+
+        var node = parseString(source, Parser::parseTopLevelExpression);
+
+        assertThat(
+            node,
+            isUntypedCallNode()
+                .withArgs(
+                    isUntypedArgsNode()
+                        .withPositional(isSequence(
+                            isUntypedReferenceNode("a")
+                        ))
+                        .withNamed(isSequence())
+                )
+        );
+    }
+
+    @Test
+    public void canParseCallWithManyPositionalArgs() {
+        var source = "f(a, b, c)";
+
+        var node = parseString(source, Parser::parseTopLevelExpression);
+
+        assertThat(
+            node,
+            isUntypedCallNode()
+                .withArgs(
+                    isUntypedArgsNode()
+                        .withPositional(isSequence(
+                            isUntypedReferenceNode("a"),
+                            isUntypedReferenceNode("b"),
+                            isUntypedReferenceNode("c")
+                        ))
+                        .withNamed(isSequence())
+                )
+        );
+    }
+
+    @Test
+    public void argumentListCanHaveTrailingComma() {
+        var source = "f(a,)";
+
+        var node = parseString(source, Parser::parseTopLevelExpression);
+
+        assertThat(
+            node,
+            isUntypedCallNode()
+                .withArgs(
+                    isUntypedArgsNode()
+                        .withPositional(isSequence(
+                            isUntypedReferenceNode("a")
+                        ))
+                        .withNamed(isSequence())
+                )
+        );
+    }
 }
-- 
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