1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package libcore.java.time;
17
18import org.junit.Test;
19import java.time.OffsetTime;
20import java.time.ZoneOffset;
21import java.time.temporal.ChronoUnit;
22import java.time.temporal.TemporalUnit;
23import java.time.temporal.UnsupportedTemporalTypeException;
24import java.util.EnumSet;
25
26import static org.junit.Assert.assertEquals;
27import static org.junit.Assert.assertSame;
28import static org.junit.Assert.fail;
29
30/**
31 * Additional tests for {@link OffsetTime}.
32 *
33 * @see tck.java.time.TCKOffsetTime
34 * @see test.java.time.TestOffsetTime
35 */
36public class OffsetTimeTest {
37
38    private static final OffsetTime NOON_UTC = OffsetTime
39            .of(/* hour */ 12, /* minute */ 0, /* second */ 0, /* nano */ 0, ZoneOffset.UTC);
40
41    @Test
42    public void test_plus() {
43        // Most of the logic is in LocalTime, to which OffsetTime#plus() delegates, verify only some
44        // simple cases here. In-depth tests for LocalTime#plus() can be found in TCKLocalTime.
45        assertEquals(OffsetTime.of(13, 0, 0, 0, ZoneOffset.UTC),
46                NOON_UTC.plus(1, ChronoUnit.HOURS));
47        assertEquals(OffsetTime.of(11, 0, 0, 0, ZoneOffset.UTC),
48                NOON_UTC.plus(23, ChronoUnit.HOURS));
49        assertEquals(OffsetTime.of(12, 1, 0, 0, ZoneOffset.UTC),
50                NOON_UTC.plus(1, ChronoUnit.MINUTES));
51        assertEquals(OffsetTime.of(12, 1, 0, 0, ZoneOffset.UTC),
52                NOON_UTC.plus(60, ChronoUnit.SECONDS));
53        assertEquals(OffsetTime.of(12, 0, 0, 1_000_000, ZoneOffset.UTC),
54                NOON_UTC.plus(1, ChronoUnit.MILLIS));
55        assertEquals(OffsetTime.of(12, 0, 0, 1, ZoneOffset.UTC),
56                NOON_UTC.plus(1, ChronoUnit.NANOS));
57    }
58
59    @Test
60    public void test_plus_noop() {
61        assertPlusIsNoop(0, ChronoUnit.MINUTES);
62        assertPlusIsNoop(2, ChronoUnit.HALF_DAYS);
63        assertPlusIsNoop(24, ChronoUnit.HOURS);
64        assertPlusIsNoop(24 * 60, ChronoUnit.MINUTES);
65        assertPlusIsNoop(24 * 60 * 60, ChronoUnit.SECONDS);
66        assertPlusIsNoop(24 * 60 * 60 * 1_000, ChronoUnit.MILLIS);
67        assertPlusIsNoop(24 * 60 * 60 * 1_000_000_000L, ChronoUnit.NANOS);
68    }
69
70    private static void assertPlusIsNoop(long amount, TemporalUnit unit) {
71        assertSame(NOON_UTC, NOON_UTC.plus(amount, unit));
72    }
73
74    @Test
75    public void test_plus_minus_invalidUnits() {
76        for (ChronoUnit unit : EnumSet.range(ChronoUnit.DAYS, ChronoUnit.FOREVER)) {
77            try {
78                NOON_UTC.plus(1, unit);
79                fail("Adding 1 " + unit + " should have failed.");
80            } catch (UnsupportedTemporalTypeException expected) {
81            }
82            try {
83                NOON_UTC.minus(1, unit);
84                fail("Subtracting 1 " + unit + " should have failed.");
85            } catch (UnsupportedTemporalTypeException expected) {
86            }
87        }
88    }
89}
90