1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/java/org/zwobble/couscous/tests/backends/python/PythonSerializerTests.java b/src/test/java/org/zwobble/couscous/tests/backends/python/PythonSerializerTests.java
index f8956e5..0f21758 100644
--- a/src/test/java/org/zwobble/couscous/tests/backends/python/PythonSerializerTests.java
+++ b/src/test/java/org/zwobble/couscous/tests/backends/python/PythonSerializerTests.java
@@ -10,6 +10,7 @@ import static org.junit.Assert.assertEquals;
 import static org.zwobble.couscous.backends.python.PythonSerializer.serialize;
 import static org.zwobble.couscous.backends.python.ast.PythonAssignmentNode.pythonAssignment;
 import static org.zwobble.couscous.backends.python.ast.PythonAttributeAccessNode.pythonAttributeAccess;
+import static org.zwobble.couscous.backends.python.ast.PythonBinaryOperation.pythonIs;
 import static org.zwobble.couscous.backends.python.ast.PythonBooleanLiteralNode.pythonBooleanLiteral;
 import static org.zwobble.couscous.backends.python.ast.PythonCallNode.pythonCall;
 import static org.zwobble.couscous.backends.python.ast.PythonConditionalExpressionNode.pythonConditionalExpression;
@@ -75,6 +76,13 @@ public class PythonSerializerTests {
     }
     
     @Test
+    public void binaryOperationIsSerializedUsingParenthesisedSubExpressions() {
+        assertEquals(
+            "(x) is (y)",
+            serialize(pythonIs(pythonVariableReference("x"), pythonVariableReference("y"))));
+    }
+    
+    @Test
     public void returnKeywordIsUsedForReturns() {
         String output = serialize(pythonReturn(pythonIntegerLiteral(42)));
         assertEquals("return 42\n", output);