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 8155600
27 * @summary Tests for Arrays.asList()
28 * @run junit AsList
29 */
30
31 import java.util.Arrays;
32 import java.util.Iterator;
33 import java.util.NoSuchElementException;
34 import java.util.stream.IntStream;
35
36 import org.junit.jupiter.api.TestInstance;
37 import org.junit.jupiter.params.ParameterizedTest;
38 import org.junit.jupiter.params.provider.MethodSource;
39
40 import static org.junit.jupiter.api.Assertions.*;
41
42 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
43 public class AsList {
44 /*
45 * Iterator contract test
46 */
47 @ParameterizedTest
48 @MethodSource("arrays")
49 public void testIterator(Object[] array) {
50 Iterator<Object> itr = Arrays.asList(array).iterator();
51 for (Object o : array) {
52 assertTrue(itr.hasNext());
53 assertTrue(itr.hasNext()); // must be idempotent
54 assertSame(o, itr.next());
55 assertThrows(UnsupportedOperationException.class, itr::remove);
56 }
57 for (int i = 0; i < 3; i++) {
58 assertFalse(itr.hasNext());
59 assertThrows(NoSuchElementException.class, itr::next);
60 }
61 }
62
63 public static Object[][] arrays() {
64 return new Object[][] {
65 { new Object[] { } },
66 { new Object[] { 1 } },
67 { new Object[] { null } },
68 { new Object[] { null, 1 } },
69 { new Object[] { 1, null } },
70 { new Object[] { null, null } },
71 { new Object[] { null, 1, 2 } },
72 { new Object[] { 1, null, 2 } },
73 { new Object[] { 1, 2, null } },
74 { new Object[] { null, null, null } },
75 { new Object[] { 1, 2, 3, null, 4 } },
76 { new Object[] { "a", "a", "a", "a" } },
77 { IntStream.range(0, 100).boxed().toArray() }
78 };
79 }
80 }
|
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 8155600
27 * @summary Tests for Arrays.asList()
28 * @library /test/lib
29 * @run junit AsList
30 */
31
32 import java.time.LocalDate;
33 import java.util.Arrays;
34 import java.util.Iterator;
35 import java.util.NoSuchElementException;
36 import java.util.Optional;
37 import java.util.stream.IntStream;
38
39 import jdk.test.lib.valueclass.AsValueClass;
40
41 import org.junit.jupiter.api.TestInstance;
42 import org.junit.jupiter.params.ParameterizedTest;
43 import org.junit.jupiter.params.provider.MethodSource;
44
45 import static org.junit.jupiter.api.Assertions.*;
46
47 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
48 public class AsList {
49
50 @AsValueClass
51 record V(int x) {}
52
53 /*
54 * Iterator contract test
55 */
56 @ParameterizedTest
57 @MethodSource("arrays")
58 public void testIterator(Object[] array) {
59 Iterator<Object> itr = Arrays.asList(array).iterator();
60 for (Object o : array) {
61 assertTrue(itr.hasNext());
62 assertTrue(itr.hasNext()); // must be idempotent
63 assertSame(o, itr.next());
64 assertThrows(UnsupportedOperationException.class, itr::remove);
65 }
66 for (int i = 0; i < 3; i++) {
67 assertFalse(itr.hasNext());
68 assertThrows(NoSuchElementException.class, itr::next);
69 }
70 }
71
72 public static Object[][] arrays() {
73 return new Object[][] {
74 { new Object[] { } },
75 { new Object[] { 1 } },
76 { new Object[] { null } },
77 { new Object[] { null, 1 } },
78 { new Object[] { 1, null } },
79 { new Object[] { null, null } },
80 { new Object[] { null, 1, 2 } },
81 { new Object[] { 1, null, 2 } },
82 { new Object[] { 1, 2, null } },
83 { new Object[] { null, null, null } },
84 { new Object[] { 1, 2, 3, null, 4 } },
85 { new Object[] { "a", "a", "a", "a" } },
86 { IntStream.range(0, 100).boxed().toArray() },
87 { new Object[] { new V(1), new V(2), null, new V(3) } },
88 { new Object[] { Integer.valueOf(1), Integer.valueOf(2), null, Integer.valueOf(3) } },
89 { new Object[] { LocalDate.of(2000, 1, 1), LocalDate.of(2000, 12, 31), LocalDate.now() } },
90 { new Object[] { Optional.of(1), Optional.empty(), Optional.of("a") } },
91 { new Object[] { Boolean.TRUE, Boolean.FALSE, null } }
92 };
93 }
94 }
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