From a34b03537f1ee6e7f3d4ee88bf5dd4f93d1bf7e4 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 27 Jan 2018 18:42:03 +0000
Subject: Read integer negation

---
 .../frontends/java/ExpressionReadingTests.java     | 53 ++++++++++++++--------
 1 file changed, 35 insertions(+), 18 deletions(-)

(limited to 'src/test/java/org/zwobble')

diff --git a/src/test/java/org/zwobble/couscous/tests/frontends/java/ExpressionReadingTests.java b/src/test/java/org/zwobble/couscous/tests/frontends/java/ExpressionReadingTests.java
index 4aa015e..a337943 100644
--- a/src/test/java/org/zwobble/couscous/tests/frontends/java/ExpressionReadingTests.java
+++ b/src/test/java/org/zwobble/couscous/tests/frontends/java/ExpressionReadingTests.java
@@ -521,6 +521,41 @@ public class ExpressionReadingTests {
             statement.getExpression());
     }
 
+    @Test
+    public void canReadPrefixDecrement() {
+        ClassNode classNode = readClass(
+            "public void go(int value) {" +
+                "    --value;" +
+                "}");
+
+        MethodNode method = classNode.getMethods().get(0);
+        FormalArgumentNode argument = method.getArguments().get(0);
+        ExpressionStatementNode statement = (ExpressionStatementNode)
+            classNode.getMethods().get(0).getBody().get().get(0);
+        assertEquals(
+            assign(
+                reference(argument),
+                integerSubtract(reference(argument), literal(1))),
+            statement.getExpression());
+    }
+
+    @Test
+    public void canReadIntegerNegation() {
+        ClassNode classNode = readClass(
+            "public int go(int value) {" +
+                "    return -value;" +
+                "}");
+
+        MethodNode method = classNode.getMethods().get(0);
+        FormalArgumentNode argument = method.getArguments().get(0);
+        ReturnNode statement = (ReturnNode)
+            classNode.getMethods().get(0).getBody().get().get(0);
+        assertEquals(
+            integerNegation(reference(argument)),
+            statement.getValue()
+        );
+    }
+
     @Test
     public void canReadCompoundAssignmentOperations() {
         canReadCompoundAssignmentOperation("+=", Operator.ADD);
@@ -584,22 +619,4 @@ public class ExpressionReadingTests {
                 boxInt(integerAdd(unboxInt(reference(left)), reference(right)))),
             statement.getExpression());
     }
-
-    @Test
-    public void canReadPrefixDecrement() {
-        ClassNode classNode = readClass(
-            "public void go(int value) {" +
-                "    --value;" +
-                "}");
-
-        MethodNode method = classNode.getMethods().get(0);
-        FormalArgumentNode argument = method.getArguments().get(0);
-        ExpressionStatementNode statement = (ExpressionStatementNode)
-            classNode.getMethods().get(0).getBody().get().get(0);
-        assertEquals(
-            assign(
-                reference(argument),
-                integerSubtract(reference(argument), literal(1))),
-            statement.getExpression());
-    }
 }
-- 
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