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test/java/lang/StringBuffer/Capacity.java

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   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 6952330
  27  * @summary Test StringBuffer/StringBuilder capacity handling.

  28  */
  29 
  30 import java.util.Random;
  31 
  32 public class Capacity {
  33     void test(String[] args) throws Throwable {
  34         Random rnd = new Random();
  35         int[] sizes = { 0, 1, rnd.nextInt(10), rnd.nextInt(1000) };
  36         for (int size : sizes) {
  37             equal(16, new StringBuffer().capacity());
  38             equal(16, new StringBuilder().capacity());
  39             StringBuffer buff = new StringBuffer(size);
  40             StringBuilder bild = new StringBuilder(size);
  41             equal(size, buff.capacity());
  42             equal(size, bild.capacity());
  43             buff.ensureCapacity(size);
  44             bild.ensureCapacity(size);
  45             equal(size, buff.capacity());
  46             equal(size, bild.capacity());
  47             buff.ensureCapacity(size+1);




   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 6952330
  27  * @summary Test StringBuffer/StringBuilder capacity handling.
  28  * @key randomness
  29  */
  30 
  31 import java.util.Random;
  32 
  33 public class Capacity {
  34     void test(String[] args) throws Throwable {
  35         Random rnd = new Random();
  36         int[] sizes = { 0, 1, rnd.nextInt(10), rnd.nextInt(1000) };
  37         for (int size : sizes) {
  38             equal(16, new StringBuffer().capacity());
  39             equal(16, new StringBuilder().capacity());
  40             StringBuffer buff = new StringBuffer(size);
  41             StringBuilder bild = new StringBuilder(size);
  42             equal(size, buff.capacity());
  43             equal(size, bild.capacity());
  44             buff.ensureCapacity(size);
  45             bild.ensureCapacity(size);
  46             equal(size, buff.capacity());
  47             equal(size, bild.capacity());
  48             buff.ensureCapacity(size+1);


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