Add Function Calling

UpsilonTests/FunctionTests.cs

@@ -26,5 +26,43 @@ testFunc()
             Assert.True(script.Scope.TryGet("a", out var a));
             Assert.Equal(100, (long)(NumberLong)a);
         }
+
+        [Fact]
+        public void ParameterTest()
+        {
+            const string input = @"
+function testFunc (var1)
+    a = var1
+end
+a = 50
+testFunc(100)
+";
+            var script = new Script(input);
+            Assert.Empty(script.Diagnostics.Messages);
+            script.Evaluate();
+            Assert.Empty(script.Diagnostics.Messages);
+            Assert.True(script.Scope.TryGet("testFunc", out var func));
+            Assert.IsType<LuaFunction>(func);
+            Assert.True(script.Scope.TryGet("a", out var a));
+            Assert.Equal(100, (long)(NumberLong)a);
+        }
+
+        [Fact]
+        public void ParameterBindTest()
+        {
+            const string input = @"
+function testFunc (var1)
+    b = var1 == true
+end
+testFunc(100)
+";
+            var script = new Script(input);
+            Assert.Empty(script.Diagnostics.Messages);
+            script.Evaluate();
+            Assert.Empty(script.Diagnostics.Messages);
+            Assert.True(script.Scope.TryGet("testFunc", out var func));
+            Assert.IsType<LuaFunction>(func);
+        }
+
     }
 }