--- jsr166/src/test/tck/CompletableFutureTest.java	2017/07/03 21:18:37	1.187
+++ jsr166/src/test/tck/CompletableFutureTest.java	2018/07/22 20:09:31	1.195
@@ -41,7 +41,6 @@ import java.util.function.Function;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
 
-import junit.framework.AssertionFailedError;
 import junit.framework.Test;
 import junit.framework.TestSuite;
 
@@ -59,10 +58,14 @@ public class CompletableFutureTest exten
     void checkIncomplete(CompletableFuture<?> f) {
         assertFalse(f.isDone());
         assertFalse(f.isCancelled());
-        assertTrue(f.toString().contains("Not completed"));
+        assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
+
+        Object result = null;
         try {
-            assertNull(f.getNow(null));
+            result = f.getNow(null);
         } catch (Throwable fail) { threadUnexpectedException(fail); }
+        assertNull(result);
+
         try {
             f.get(randomExpiredTimeout(), randomTimeUnit());
             shouldThrow();
@@ -82,7 +85,7 @@ public class CompletableFutureTest exten
         assertTrue(f.isDone());
         assertFalse(f.isCancelled());
         assertFalse(f.isCompletedExceptionally());
-        assertTrue(f.toString().contains("[Completed normally]"));
+        assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
     }
 
     /**
@@ -138,7 +141,7 @@ public class CompletableFutureTest exten
         assertFalse(f.isCancelled());
         assertTrue(f.isDone());
         assertTrue(f.isCompletedExceptionally());
-        assertTrue(f.toString().contains("[Completed exceptionally]"));
+        assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
     }
 
     void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
@@ -193,7 +196,7 @@ public class CompletableFutureTest exten
         assertTrue(f.isDone());
         assertTrue(f.isCompletedExceptionally());
         assertTrue(f.isCancelled());
-        assertTrue(f.toString().contains("[Completed exceptionally]"));
+        assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
     }
 
     /**
@@ -292,7 +295,7 @@ public class CompletableFutureTest exten
         }
 
         f = new CompletableFuture<>();
-        f.completeExceptionally(ex = new CFException());
+        f.completeExceptionally(new CFException());
         f.obtrudeValue(v1);
         checkCompletedNormally(f, v1);
         f.obtrudeException(ex = new CFException());
@@ -329,23 +332,40 @@ public class CompletableFutureTest exten
     /**
      * toString indicates current completion state
      */
-    public void testToString() {
-        CompletableFuture<String> f;
-
-        f = new CompletableFuture<String>();
-        assertTrue(f.toString().contains("[Not completed]"));
+    public void testToString_incomplete() {
+        CompletableFuture<String> f = new CompletableFuture<>();
+        assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
+        if (testImplementationDetails)
+            assertEquals(identityString(f) + "[Not completed]",
+                         f.toString());
+    }
 
+    public void testToString_normal() {
+        CompletableFuture<String> f = new CompletableFuture<>();
         assertTrue(f.complete("foo"));
-        assertTrue(f.toString().contains("[Completed normally]"));
+        assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
+        if (testImplementationDetails)
+            assertEquals(identityString(f) + "[Completed normally]",
+                         f.toString());
+    }
 
-        f = new CompletableFuture<String>();
+    public void testToString_exception() {
+        CompletableFuture<String> f = new CompletableFuture<>();
         assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
-        assertTrue(f.toString().contains("[Completed exceptionally]"));
+        assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
+        if (testImplementationDetails)
+            assertTrue(f.toString().startsWith(
+                               identityString(f) + "[Completed exceptionally: "));
+    }
 
+    public void testToString_cancelled() {
         for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
-            f = new CompletableFuture<String>();
+            CompletableFuture<String> f = new CompletableFuture<>();
             assertTrue(f.cancel(mayInterruptIfRunning));
-            assertTrue(f.toString().contains("[Completed exceptionally]"));
+            assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
+            if (testImplementationDetails)
+                assertTrue(f.toString().startsWith(
+                                   identityString(f) + "[Completed exceptionally: "));
         }
     }
 
@@ -4173,7 +4193,7 @@ public class CompletableFutureTest exten
         static void assertZero(CompletableFuture<?> f) {
             try {
                 f.getNow(null);
-                throw new AssertionFailedError("should throw");
+                throw new AssertionError("should throw");
             } catch (CompletionException success) {
                 assertTrue(success.getCause() instanceof ZeroException);
             }
@@ -4372,7 +4392,7 @@ public class CompletableFutureTest exten
             f.complete(null);
 
             f = new CompletableFuture<>();
-            CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
+            CompletableFuture.anyOf(f, incomplete);
             f.complete(null);
         }
 
@@ -4390,7 +4410,7 @@ public class CompletableFutureTest exten
             f.complete(null);
 
             f = new CompletableFuture<>();
-            CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
+            CompletableFuture.anyOf(incomplete, f);
             f.complete(null);
         }
     }