Two-way binding tests

Bug 1474349
Bug 22460238

Tests for two-way data binding can't be checked in until the
SDK becomes public. Also updates the sample application because
it has the same restrictions.

Change-Id: I7e2b2f84943844401d2b8edbac4e60ea9f5704a6

2 files changed, 62 insertions, 8 deletions

diff --git a/compilationTests/src/test/java/android/databinding/compilationTest/SimpleCompilationTest.java b/compilationTests/src/test/java/android/databinding/compilationTest/SimpleCompilationTest.java
index f38dcc4f..3525b3a8 100644
--- a/compilationTests/src/test/java/android/databinding/compilationTest/SimpleCompilationTest.java
+++ b/compilationTests/src/test/java/android/databinding/compilationTest/SimpleCompilationTest.java
@@ -16,13 +16,6 @@
 
 package android.databinding.compilationTest;
 
-
-import org.apache.commons.io.FileUtils;
-import org.apache.commons.io.filefilter.PrefixFileFilter;
-import org.apache.commons.io.filefilter.SuffixFileFilter;
-import org.apache.commons.lang3.StringUtils;
-import org.junit.Test;
-
 import android.databinding.tool.processing.ErrorMessages;
 import android.databinding.tool.processing.ScopedErrorReport;
 import android.databinding.tool.processing.ScopedException;
@@ -30,6 +23,12 @@ import android.databinding.tool.store.Location;
 
 import com.google.common.base.Joiner;
 
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.filefilter.PrefixFileFilter;
+import org.apache.commons.io.filefilter.SuffixFileFilter;
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
 import java.io.File;
 import java.io.IOException;
 import java.net.URISyntaxException;
@@ -37,7 +36,6 @@ import java.util.Collection;
 import java.util.List;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
@@ -327,4 +325,25 @@ public class SimpleCompilationTest extends BaseCompilationTest {
         assertEquals("Merge shouldn't support includes as root. Error message was '" + result.error,
                 ErrorMessages.INCLUDE_INSIDE_MERGE, ex.getBareMessage());
     }
+
+    @Test
+    public void testAssignTwoWayEvent() throws Throwable {
+        prepareProject();
+        copyResourceTo("/layout/layout_with_two_way_event_attribute.xml",
+                "/app/src/main/res/layout/layout_with_two_way_event_attribute.xml");
+        CompilationResult result = runGradle("assembleDebug");
+        assertNotEquals(0, result.resultCode);
+        List<ScopedException> errors = ScopedException.extractErrors(result.error);
+        assertEquals(result.error, 1, errors.size());
+        final ScopedException ex = errors.get(0);
+        final ScopedErrorReport report = ex.getScopedErrorReport();
+        final File errorFile = new File(report.getFilePath());
+        assertTrue(errorFile.exists());
+        assertEquals(new File(testFolder,
+                "/app/src/main/res/layout/layout_with_two_way_event_attribute.xml")
+                        .getCanonicalFile(),
+                errorFile.getCanonicalFile());
+        assertEquals("The attribute android:textAttrChanged is a two-way binding event attribute " +
+                "and cannot be assigned.", ex.getBareMessage());
+    }
 }
diff --git a/compilationTests/src/test/resources/layout/layout_with_two_way_event_attribute.xml b/compilationTests/src/test/resources/layout/layout_with_two_way_event_attribute.xml
new file mode 100644
index 00000000..16536e34
--- /dev/null
+++ b/compilationTests/src/test/resources/layout/layout_with_two_way_event_attribute.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 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.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+>
+    <data>
+        <variable name="myVariable" type="String"/>
+        <variable name="myEventListener" type="android.databinding.InverseBindingListener"/>
+    </data>
+    <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+        <!-- undefined variable -->
+        <TextView android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:id="@+id/textView"
+                  android:text="@{myVariable}"
+                  android:textAttrChanged="@{myEventListener}"/>
+    </LinearLayout>
+</layout>
\ No newline at end of file