Add testing framework to LayoutLib.

This change adds an end to end test which loads the framework resources
and a test app and ensures that no exceptions or warnings are thrown.

The change also adds project configuration for intelliJ.

Change-Id: I7b67c0f1a2af2dac95df7f3231cab537b9826d7d
diff --git a/tools/layoutlib/.idea/codeStyleSettings.xml b/tools/layoutlib/.idea/codeStyleSettings.xml
new file mode 100644
index 0000000..33937b3
--- /dev/null
+++ b/tools/layoutlib/.idea/codeStyleSettings.xml
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectCodeStyleSettingsManager">
+    <option name="PER_PROJECT_SETTINGS">
+      <value>
+        <option name="FIELD_NAME_PREFIX" value="m" />
+        <option name="STATIC_FIELD_NAME_PREFIX" value="s" />
+        <option name="USE_FQ_CLASS_NAMES_IN_JAVADOC" value="false" />
+        <option name="INSERT_INNER_CLASS_IMPORTS" value="true" />
+        <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="999" />
+        <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="999" />
+        <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
+          <value />
+        </option>
+        <option name="IMPORT_LAYOUT_TABLE">
+          <value>
+            <package name="com.android" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="org" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="android" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="java" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="" withSubpackages="true" static="true" />
+          </value>
+        </option>
+        <option name="WRAP_WHEN_TYPING_REACHES_RIGHT_MARGIN" value="true" />
+        <option name="JD_ALIGN_PARAM_COMMENTS" value="false" />
+        <option name="JD_ADD_BLANK_AFTER_PARM_COMMENTS" value="true" />
+        <option name="JD_ADD_BLANK_AFTER_RETURN" value="true" />
+        <option name="JD_DO_NOT_WRAP_ONE_LINE_COMMENTS" value="true" />
+        <option name="RIGHT_MARGIN" value="100" />
+        <option name="WRAP_COMMENTS" value="true" />
+        <XML>
+          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
+        </XML>
+        <codeStyleSettings language="JAVA">
+          <option name="INDENT_CASE_FROM_SWITCH" value="false" />
+          <option name="ALIGN_MULTILINE_PARAMETERS" value="false" />
+          <option name="CALL_PARAMETERS_WRAP" value="1" />
+          <option name="METHOD_PARAMETERS_WRAP" value="1" />
+          <option name="THROWS_LIST_WRAP" value="1" />
+          <option name="EXTENDS_KEYWORD_WRAP" value="1" />
+          <option name="THROWS_KEYWORD_WRAP" value="1" />
+          <option name="BINARY_OPERATION_WRAP" value="1" />
+          <option name="TERNARY_OPERATION_WRAP" value="1" />
+          <option name="ARRAY_INITIALIZER_WRAP" value="1" />
+          <option name="ASSIGNMENT_WRAP" value="1" />
+          <option name="ASSERT_STATEMENT_WRAP" value="1" />
+          <option name="IF_BRACE_FORCE" value="3" />
+          <option name="DOWHILE_BRACE_FORCE" value="3" />
+          <option name="WHILE_BRACE_FORCE" value="3" />
+          <option name="FOR_BRACE_FORCE" value="3" />
+          <arrangement>
+            <groups>
+              <group>
+                <type>GETTERS_AND_SETTERS</type>
+                <order>KEEP</order>
+              </group>
+              <group>
+                <type>OVERRIDDEN_METHODS</type>
+                <order>KEEP</order>
+              </group>
+            </groups>
+          </arrangement>
+        </codeStyleSettings>
+      </value>
+    </option>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </component>
+</project>
+