test/java/util/zip/TestExtraTime.java

rev 11478 : 8073497: Lazy conversion of ZipEntry time
Reviewed-by: sherman, plevart

*** 1,7 ****
  /*
!  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 69,78 ****
--- 69,79 ----
                  test(mtime, atime, ctime, tz, extra);
              }
          }
  
          testNullHandling();
+         testTimeConversions();
      }
  
      static void test(FileTime mtime, FileTime atime, FileTime ctime,
                       TimeZone tz, byte[] extra) throws Throwable {
          System.out.printf("--------------------%nTesting: [%s]/[%s]/[%s]%n",
*** 176,181 ****
--- 177,211 ----
              throw new RuntimeException("setLastModifiedTime(null) should throw NPE");
          } catch (NullPointerException ignored) {
              // pass
          }
      }
+ 
+     // verify that setting and getting any time is possible as per the intent
+     // of 4759491
+     static void testTimeConversions() {
+         // Sample across the entire range
+         long step = Long.MAX_VALUE / 100L;
+         testTimeConversions(Long.MIN_VALUE, Long.MAX_VALUE - step, step);
+ 
+         // Samples through the near future
+         long currentTime = System.currentTimeMillis();
+         testTimeConversions(currentTime, currentTime + 1_000_000, 10_000);
+     }
+ 
+     static void testTimeConversions(long from, long to, long step) {
+         ZipEntry ze = new ZipEntry("TestExtraTime.java");
+         for (long time = from; time <= to; time += step) {
+             ze.setTime(time);
+             FileTime lastModifiedTime = ze.getLastModifiedTime();
+             if (lastModifiedTime.toMillis() != time) {
+                 throw new RuntimeException("setTime should make getLastModifiedTime " +
+                         "return the specified instant: " + time +
+                         " got: " + lastModifiedTime.toMillis());
+             }
+             if (ze.getTime() != time) {
+                 throw new RuntimeException("getTime after setTime, expected: " +
+                         time + " got: " + ze.getTime());
+             }
+         }
+     }
  }