❄ Split off RadioButtonLayout from InfoBarControls

chrome/android/javatests/src/org/chromium/chrome/browser/widget/RadioButtonLayoutTest.java

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.widget;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.annotation.UiThreadTest;
+import android.support.test.filters.SmallTest;
+import android.support.test.rule.UiThreadTestRule;
+import android.view.View;
+import android.view.ViewGroup.MarginLayoutParams;
+import android.widget.RadioButton;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Tests for {@link RadioButtonLayout}.
+ */
+@RunWith(ChromeJUnit4ClassRunner.class)
+public class RadioButtonLayoutTest {
+    @Rule
+    public UiThreadTestRule mRule = new UiThreadTestRule();
+
+    private Context mContext;
+
+    @Before
+    public void setUp() {
+        mContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+    }
+
+    @Test
+    @SmallTest
+    @UiThreadTest
+    public void testMargins() {
+        RadioButtonLayout layout = new RadioButtonLayout(mContext);
+
+        // Add one set of options.
+        List<CharSequence> messages = new ArrayList<CharSequence>();
+        messages.add("a");
+        messages.add("b");
+        messages.add("c");
+        layout.addOptions(messages, null);
+
+        // Test the margins.
+        for (int i = 0; i < layout.getChildCount(); i++) {
+            View child = layout.getChildAt(i);
+            MarginLayoutParams params = (MarginLayoutParams) child.getLayoutParams();
+
+            if (i < layout.getChildCount() - 1) {
+                Assert.assertNotEquals(0, params.bottomMargin);
+            } else {
+                Assert.assertEquals(0, params.bottomMargin);
+            }
+        }
+
+        // Add more options.
+        List<CharSequence> moreMessages = new ArrayList<CharSequence>();
+        moreMessages.add("d");
+        moreMessages.add("e");
+        moreMessages.add("f");
+        layout.addOptions(moreMessages, null);
+
+        // Test the margins.
+        for (int i = 0; i < layout.getChildCount(); i++) {
+            View child = layout.getChildAt(i);
+            MarginLayoutParams params = (MarginLayoutParams) child.getLayoutParams();
+
+            if (i < layout.getChildCount() - 1) {
+                Assert.assertNotEquals(0, params.bottomMargin);
+            } else {
+                Assert.assertEquals(0, params.bottomMargin);
+            }
+        }
+    }
+
+    @Test
+    @SmallTest
+    @UiThreadTest
+    public void testAddOptions() {
+        RadioButtonLayout layout = new RadioButtonLayout(mContext);
+
+        // Add one set of options.
+        List<CharSequence> messages = new ArrayList<CharSequence>();
+        messages.add("a");
+        messages.add("b");
+        messages.add("c");
+        List<String> tags = Arrays.asList("tag 1", "tag 2", "tag 3");
+        layout.addOptions(messages, tags);
+        Assert.assertEquals(3, layout.getChildCount());
+        for (int i = 0; i < layout.getChildCount(); i++) {
+            Assert.assertEquals(messages.get(i), ((RadioButton) layout.getChildAt(i)).getText());
+            Assert.assertEquals(tags.get(i), ((RadioButton) layout.getChildAt(i)).getTag());
+        }
+
+        // Add even more options, but without tags.
+        List<CharSequence> moreMessages = new ArrayList<CharSequence>();
+        moreMessages.add("d");
+        moreMessages.add("e");
+        moreMessages.add("f");
+        layout.addOptions(moreMessages, null);
+        Assert.assertEquals(6, layout.getChildCount());
+        for (int i = 0; i < 3; i++) {
+            Assert.assertEquals(messages.get(i), ((RadioButton) layout.getChildAt(i)).getText());
+            Assert.assertEquals(tags.get(i), ((RadioButton) layout.getChildAt(i)).getTag());
+        }
+        for (int i = 3; i < 6; i++) {
+            Assert.assertEquals(
+                    moreMessages.get(i - 3), ((RadioButton) layout.getChildAt(i)).getText());
+            Assert.assertNull(((RadioButton) layout.getChildAt(i)).getTag());
+        }
+    }
+
+    @Test
+    @SmallTest
+    @UiThreadTest
+    public void testSelection() {
+        final RadioButtonLayout layout = new RadioButtonLayout(mContext);
+
+        // Add one set of options.
+        List<CharSequence> messages = new ArrayList<CharSequence>();
+        messages.add("a");
+        messages.add("b");
+        messages.add("c");
+        layout.addOptions(messages, null);
+        Assert.assertEquals(3, layout.getChildCount());
+
+        // Nothing should be selected by default.
+        for (int i = 0; i < layout.getChildCount(); i++) {
+            RadioButton child = (RadioButton) layout.getChildAt(i);
+            Assert.assertFalse(child.isChecked());
+        }
+
+        // Select the second one.
+        layout.selectChildAtIndex(1);
+        for (int i = 0; i < layout.getChildCount(); i++) {
+            RadioButton child = (RadioButton) layout.getChildAt(i);
+            Assert.assertEquals(i == 1, child.isChecked());
+        }
+
+        // Add even more options.
+        List<CharSequence> moreMessages = new ArrayList<CharSequence>();
+        moreMessages.add("d");
+        moreMessages.add("e");
+        moreMessages.add("f");
+        layout.addOptions(moreMessages, null);
+        Assert.assertEquals(6, layout.getChildCount());
+
+        // Second child should still be checked.
+        for (int i = 0; i < layout.getChildCount(); i++) {
+            RadioButton child = (RadioButton) layout.getChildAt(i);
+            Assert.assertEquals(i == 1, child.isChecked());
+        }
+    }
+}