Introduce ThreadedInputConnection behind a switch

content/public/android/junit/src/org/chromium/content/browser/input/RangeTest.java

+// Copyright 2016 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.content.browser.input;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.chromium.base.test.util.Feature;
+import org.chromium.testing.local.LocalRobolectricTestRunner;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
+
+/**
+ * Unit tests for {@Range}.
+ */
+@RunWith(LocalRobolectricTestRunner.class)
+@Config(manifest = Config.NONE)

[Ted C, 2016/02/02 23:14:43]

Can this just be a simple junit test instead of needing roboelectric?  This has
no dependencies on android right?

(i.e. extends TestCase)

[Changwan Ryu, 2016/02/11 16:21:08]

Done.

+public class RangeTest {
+
+    @Test
+    @Feature({"TextInput"})
+    public void test_clamp() {
+        // Overlap case #1
+        Range range = new Range(1, 4);
+        range.clamp(2, 5);
+        assertEquals(new Range(2, 4), range);
+        // Overlap case #2
+        range.set(1, 4);
+        range.clamp(0, 2);
+        assertEquals(new Range(1, 2), range);
+        // Clamp on both ends
+        range.set(1, 4);
+        range.clamp(2, 3);
+        assertEquals(new Range(2, 3), range);
+        // No-op
+        range.set(1, 4);
+        range.clamp(0, 5);
+        assertEquals(new Range(1, 4), range);
+    }
+
+    @Test
+    @Feature({"TextInput"})
+    public void test_equals() {
+        assertTrue(new Range(1, 3).equals(new Range(1, 3)));
+        assertFalse(new Range(1, 2).equals(new Range(1, 3)));
+        Range range = new Range(1, 4);
+        assertTrue(range.equals(range));
+    }
+}