diff -r c7374ff3f3a3 -r d99af76d7689 src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/MethodSubstitutionTest.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/MethodSubstitutionTest.java	Sat Sep 07 10:04:07 2019 -0400
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/MethodSubstitutionTest.java	Sat Sep 07 10:05:47 2019 -0700
@@ -56,13 +56,21 @@
         return testGraph(snippet, null);
     }
 
-    @SuppressWarnings("try")
+    protected StructuredGraph testGraph(final String snippet, boolean assertInvoke) {
+        return testGraph(snippet, null, assertInvoke);
+    }
+
     protected StructuredGraph testGraph(final String snippet, String name) {
-        return testGraph(getResolvedJavaMethod(snippet), name);
+        return testGraph(snippet, name, false);
     }
 
     @SuppressWarnings("try")
-    protected StructuredGraph testGraph(final ResolvedJavaMethod method, String name) {
+    protected StructuredGraph testGraph(final String snippet, String name, boolean assertInvoke) {
+        return testGraph(getResolvedJavaMethod(snippet), name, assertInvoke);
+    }
+
+    @SuppressWarnings("try")
+    protected StructuredGraph testGraph(final ResolvedJavaMethod method, String name, boolean assertInvoke) {
         DebugContext debug = getDebugContext();
         try (DebugContext.Scope s = debug.scope("MethodSubstitutionTest", method)) {
             StructuredGraph graph = parseEager(method, AllowAssumptions.YES, debug);
@@ -86,13 +94,22 @@
                         Invoke invoke = (Invoke) node;
                         if (invoke.callTarget() instanceof MethodCallTargetNode) {
                             MethodCallTargetNode call = (MethodCallTargetNode) invoke.callTarget();
-                            assertTrue(!call.targetMethod().getName().equals(name), "Unexpected invoke of intrinsic %s", call.targetMethod());
+                            boolean found = call.targetMethod().getName().equals(name);
+                            if (assertInvoke) {
+                                assertTrue(found, "Expected to find a call to %s", name);
+                            } else {
+                                assertFalse(found, "Unexpected call to %s", name);
+                            }
                         }
                     }
 
                 }
             } else {
-                assertNotInGraph(graph, Invoke.class);
+                if (assertInvoke) {
+                    assertInGraph(graph, Invoke.class);
+                } else {
+                    assertNotInGraph(graph, Invoke.class);
+                }
             }
             return graph;
         } catch (Throwable e) {