1 files changed, 15 insertions, 1 deletions
diff --git a/src/test/java/com/seaofnodes/simple/PhaseTest.java b/src/test/java/com/seaofnodes/simple/PhaseTest.java
index 885889a8..899f42fe 100644
--- a/src/test/java/com/seaofnodes/simple/PhaseTest.java
+++ b/src/test/java/com/seaofnodes/simple/PhaseTest.java
@@ -27,7 +27,7 @@ public class PhaseTest {
         code.driver(Phase.LoopTree);
         assertEquals(Phase.LoopTree,code._phase);
         code.driver(Phase.LocalSched);
-        assertEquals("Parse Iter FinalizeIR TypeCheck LoopTree Schedule LocalSched",String.join(" ",phases));
+        assertEquals("Parse Iter Opto IterPostOpto FinalizeIR TypeCheck LoopTree Schedule LocalSched",String.join(" ",phases));
         assertEquals("45",Eval2.eval(code,10));
     }
 
@@ -39,4 +39,18 @@ public class PhaseTest {
         CodeGen direct = new CodeGen(SRC).driver(Phase.Encoding,"x86_64_v2","SystemV");
         assertArrayEquals(bits,direct._encoding._bits.toByteArray());
     }
+
+    @Test public void testOptoRequiresIter() {
+        CodeGen code = new CodeGen(SRC).parse();
+        try {
+            code.opto();
+            fail("Opto must not implicitly run Iter");
+        } catch( AssertionError expected ) {
+            assertEquals("Cannot run Opto after Parse",expected.getMessage());
+        }
+        code.iter().opto();
+        assertEquals(Phase.Opto,code._phase);
+        code.driver(Phase.LocalSched);
+        assertEquals("45",Eval2.eval(code,10));
+    }
 }