/
BottomNavigationViewTest.java
83 lines (69 loc) · 3.03 KB
/
BottomNavigationViewTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.material.bottomnavigation;
import com.google.android.material.test.R;
import static com.google.common.truth.Truth.assertThat;
import android.content.Context;
import android.view.Menu;
import android.view.MenuItem;
import androidx.test.core.app.ApplicationProvider;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.internal.DoNotInstrument;
/** Tests for {@link BottomNavigationView}. */
@RunWith(RobolectricTestRunner.class)
@DoNotInstrument
public final class BottomNavigationViewTest {
private final Context context = ApplicationProvider.getApplicationContext();
@Before
public void themeApplicationContext() {
context.setTheme(R.style.Theme_MaterialComponents_Light);
}
@Test
public void testSetSelectedItemId_itemIsSelected() {
BottomNavigationView bottomNavigation = new BottomNavigationView(context);
Menu menu = bottomNavigation.getMenu();
menu.add(Menu.NONE, 123, Menu.NONE, "first item");
MenuItem selectedItem = menu.add(Menu.NONE, 456, Menu.NONE, "second item");
menu.add(Menu.NONE, 789, Menu.NONE, "third item");
bottomNavigation.setSelectedItemId(selectedItem.getItemId());
assertThat(bottomNavigation.getSelectedItemId()).isEqualTo(selectedItem.getItemId());
}
@Test
public void testAddItem_atSelectedIndex_selectedItemDoesNotChange() {
int selectedItemOrder = Menu.CATEGORY_CONTAINER + 2;
// Create a BottomNavigationView with a selected item.
BottomNavigationView bottomNavigation = new BottomNavigationView(context);
Menu menu = bottomNavigation.getMenu();
MenuItem selectedItem = menu.add(Menu.NONE, 123, selectedItemOrder, "selected item");
bottomNavigation.setSelectedItemId(selectedItem.getItemId());
// Add another item, with a lower order than the selected item, so that its index is the
// selected item's old index.
menu.add(Menu.NONE, 456, selectedItemOrder - 1, "other item");
// Assert that the selected item is still selected.
assertThat(bottomNavigation.getSelectedItemId()).isEqualTo(selectedItem.getItemId());
}
@Test
public void testRemoveBadgeEmptyMenu() {
BottomNavigationView bottomNavigation = new BottomNavigationView(context);
Menu menu = bottomNavigation.getMenu();
assertThat(menu.size()).isEqualTo(0);
bottomNavigation.removeBadge(123);
// No exception expected.
}
}