make IG test light

plugins/InspectionGadgets/test/com/siyeh/igtest/classlayout/empty_class/EmptyClass.java

@@ -8,4 +8,4 @@ public class EmptyClass {
 }
 class MyList extends java.util.ArrayList<String> {}
 class MyException extends java.lang.Exception {}
-abstract class ReportMe implements java.util.List {}
+abstract class <warning descr="Class 'ReportMe' is empty">ReportMe</warning> implements java.util.List {}

plugins/InspectionGadgets/test/com/siyeh/igtest/classlayout/empty_class/EmptyFile.java

@@ -0,0 +1 @@
+<warning descr="Java file does not declare any class">// comment</warning>

plugins/InspectionGadgets/test/com/siyeh/igtest/classlayout/emptyclass/expected.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<problems>
-  <problem>
-    <file>EmptyClass.java</file>
-    <line>11</line>
-    <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Empty class</problem_class>
-    <description>Class &lt;code&gt;ReportMe&lt;/code&gt; is empty #loc</description>
-  </problem>
-
-  <problem>
-    <file>EmptyFile.java</file>
-    <line>1</line>
-    <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Empty class</problem_class>
-    <description>Java file does not declare any class #loc</description>
-  </problem>
-</problems>

plugins/InspectionGadgets/testsrc/com/siyeh/ig/classlayout/EmptyClassInspectionTest.java

@@ -1,13 +1,29 @@
 package com.siyeh.ig.classlayout;
 
-import com.siyeh.ig.IGInspectionTestCase;
+import com.intellij.codeInspection.InspectionProfileEntry;
+import com.siyeh.ig.LightInspectionTestCase;
+import org.jetbrains.annotations.Nullable;
 
-public class EmptyClassInspectionTest extends IGInspectionTestCase {
+public class EmptyClassInspectionTest extends LightInspectionTestCase {
 
-  public void test() throws Exception {
-    final EmptyClassInspection tool = new EmptyClassInspection();
-    tool.ignoreClassWithParameterization = true;
-    tool.ignoreThrowables = true;
-    doTest("com/siyeh/igtest/classlayout/emptyclass", tool);
+  public void testEmptyClass() {
+    doTest();
+  }
+
+  public void testPackageInfo() {
+    doNamedTest("package-info");
+  }
+
+  public void testEmptyFile() {
+    doTest();
+  }
+
+  @Nullable
+  @Override
+  protected InspectionProfileEntry getInspection() {
+    final EmptyClassInspection inspection = new EmptyClassInspection();
+    inspection.ignoreClassWithParameterization = true;
+    inspection.ignoreThrowables = true;
+    return inspection;
   }
 }