Shuffle lucene-index tests move rules, fields, junit hook methors on …

…top.

Remove IsEmpty, switch to standard matcher instead.
Remove separate process from RecoveryTest.

community/kernel/src/test/java/examples/CreateAndLoadDenseNodeIT.java

@@ -104,7 +104,7 @@ private void createDbIfNecessary()
             }
             finally
             {
-                dbRule.stopAndKeepFiles();
+                dbRule.shutdownAndKeepStore();
             }
         }
     }

community/kernel/src/test/java/org/neo4j/test/DatabaseRule.java

@@ -333,14 +333,9 @@ private void shutdown( boolean deleteResources )
         }
     }
 
-    public void stopAndKeepFiles()
+    public void shutdownAndKeepStore()
     {
-        if ( database != null )
-        {
-            database.shutdown();
-            database = null;
-            statementSupplier = null;
-        }
+        shutdown( false );
     }
 
     public <T> T resolveDependency( Class<T> type )

community/lucene-index/src/test/java/org/neo4j/graphdb/LuceneLabelScanStoreChaosIT.java

@@ -52,6 +52,11 @@
  */
 public class LuceneLabelScanStoreChaosIT
 {
+
+    @Rule
+    public final DatabaseRule dbRule = new EmbeddedDatabaseRule( getClass() );
+    private final Random random = new Random();
+
     @Test
     public void shouldRebuildDeletedLabelScanStoreOnStartup() throws Exception
     {
@@ -97,55 +102,44 @@ public void shouldPreventCorruptedLabelScanStoreToStartup() throws Exception
 
     private RestartAction corruptTheLabelScanStoreIndex()
     {
-        return new RestartAction()
-        {
-            @Override
-            public void run( FileSystemAbstraction fs, File storeDirectory )
+        return ( fs, storeDirectory ) -> {
+            try
             {
-                try
+                int filesCorrupted = 0;
+                for ( File file : labelScanStoreIndexDirectory( storeDirectory ).listFiles() )
                 {
-                    int filesCorrupted = 0;
-                    for ( File file : labelScanStoreIndexDirectory( storeDirectory ).listFiles() )
-                    {
-                        scrambleFile( file );
-                        filesCorrupted++;
-                    }
-                    assertTrue( "No files found to corrupt", filesCorrupted > 0 );
-                }
-                catch ( IOException e )
-                {
-                    throw new RuntimeException( e );
+                    scrambleFile( file );
+                    filesCorrupted++;
                 }
+                assertTrue( "No files found to corrupt", filesCorrupted > 0 );
+            }
+            catch ( IOException e )
+            {
+                throw new RuntimeException( e );
             }
         };
     }
 
     private RestartAction deleteTheLabelScanStoreIndex()
     {
-        return new RestartAction()
-        {
-            @Override
-            public void run( FileSystemAbstraction fs, File storeDirectory )
+        return ( fs, storeDirectory ) -> {
+            try
             {
-                try
-                {
-                    File directory = labelScanStoreIndexDirectory( storeDirectory );
-                    assertTrue( "We seem to want to delete the wrong directory here", directory.exists() );
-                    assertTrue( "No index files to delete", directory.listFiles().length > 0 );
-                    deleteRecursively( directory );
-                }
-                catch ( IOException e )
-                {
-                    throw new RuntimeException( e );
-                }
+                File directory = labelScanStoreIndexDirectory( storeDirectory );
+                assertTrue( "We seem to want to delete the wrong directory here", directory.exists() );
+                assertTrue( "No index files to delete", directory.listFiles().length > 0 );
+                deleteRecursively( directory );
+            }
+            catch ( IOException e )
+            {
+                throw new RuntimeException( e );
             }
         };
     }
 
     private File labelScanStoreIndexDirectory( File storeDirectory )
     {
-        File directory = new File( new File( new File( storeDirectory, "schema" ), "label" ), "lucene" );
-        return directory;
+        return new File( new File( new File( storeDirectory, "schema" ), "label" ), "lucene" );
     }
 
     private Node createLabeledNode( Label... labels )
@@ -197,13 +191,10 @@ private void putRandomBytes( byte[] bytes )
         }
     }
 
-    private static enum Labels implements Label
+    private enum Labels implements Label
     {
         First,
         Second,
         Third;
     }
-
-    public final @Rule DatabaseRule dbRule = new EmbeddedDatabaseRule( getClass() );
-    private final Random random = new Random();
 }

community/lucene-index/src/test/java/org/neo4j/index/Neo4jTestCase.java

@@ -48,6 +48,12 @@ public static void setUpDb() throws Exception
     {
         graphDb = new TestGraphDatabaseFactory().newImpermanentDatabase();
     }
+
+    @AfterClass
+    public static void tearDownDb() throws Exception
+    {
+        graphDb.shutdown();
+    }
 
     @Before
     public void setUpTest()
@@ -93,12 +99,6 @@ protected Transaction beginTx()
         return tx;
     }
 
-    @AfterClass
-    public static void tearDownDb() throws Exception
-    {
-        graphDb.shutdown();
-    }
-
     public static void deleteFileOrDirectory( File file )
     {
         if ( !file.exists() )

community/lucene-index/src/test/java/org/neo4j/index/impl/lucene/AbstractLuceneIndexTest.java

@@ -41,9 +41,10 @@
 
 public abstract class AbstractLuceneIndexTest
 {
+    @Rule
+    public final TestName testname = new TestName();
     protected static GraphDatabaseService graphDb;
     protected Transaction tx;
-    public final @Rule TestName testname = new TestName();
 
     @BeforeClass
     public static void setUpStuff()

community/lucene-index/src/test/java/org/neo4j/index/impl/lucene/AutoIndexerTest.java

@@ -42,7 +42,8 @@
 
 public class AutoIndexerTest
 {
-    public final @Rule DatabaseRule db = new EmbeddedDatabaseRule()
+    @Rule
+    public final DatabaseRule db = new EmbeddedDatabaseRule()
     {
         @Override
         protected void configure( GraphDatabaseBuilder builder )

community/lucene-index/src/test/java/org/neo4j/index/impl/lucene/LuceneCommandApplierTest.java

@@ -45,8 +45,10 @@
 
 public class LuceneCommandApplierTest
 {
-    public final @Rule EphemeralFileSystemRule fs = new EphemeralFileSystemRule();
-    public final @Rule LifeRule life = new LifeRule( true );
+    @Rule
+    public final  EphemeralFileSystemRule fs = new EphemeralFileSystemRule();
+    @Rule
+    public final LifeRule life = new LifeRule( true );
     private final File dir = new File( "dir" );
 
     @Test

community/lucene-index/src/test/java/org/neo4j/index/impl/lucene/LuceneDataSourceTest.java

@@ -46,8 +46,10 @@
 
 public class LuceneDataSourceTest
 {
-    public final @Rule LifeRule life = new LifeRule( true );
-    public final @Rule TestDirectory directory = TargetDirectory.testDirForTest( getClass() );
+    @Rule
+    public final LifeRule life = new LifeRule( true );
+    @Rule
+    public final TestDirectory directory = TargetDirectory.testDirForTest( getClass() );
     private IndexConfigStore indexStore;
     private LuceneDataSource dataSource;
 

community/lucene-index/src/test/java/org/neo4j/index/impl/lucene/LuceneRecoveryIT.java

@@ -37,16 +37,20 @@
 
 public class LuceneRecoveryIT
 {
+
     @Test
     public void testHardCoreRecovery() throws Exception
     {
         String path = "target/hcdb";
         FileUtils.deleteRecursively( new File( path ) );
+
+
         Process process = Runtime.getRuntime().exec( new String[]{
                 ProcessUtil.getJavaExecutable().toString(), "-cp", ProcessUtil.getClassPath(),
                 Inserter.class.getName(), path
         } );
 
+
         // Let it run for a while and then kill it, and wait for it to die
         awaitFile( new File( path, "started" ) );
         Thread.sleep( 5000 );

community/lucene-index/src/test/java/org/neo4j/index/impl/lucene/PerformanceAndSanityIT.java

@@ -54,6 +54,9 @@
 
 public class PerformanceAndSanityIT extends AbstractLuceneIndexTest
 {
+    @Rule
+    public final TargetDirectory.TestDirectory testDirectory = TargetDirectory.testDirForTest( getClass() );
+
     @Ignore
     @Test
     public void testNodeInsertionSpeed()
@@ -288,7 +291,4 @@ public void run()
 
         System.out.println( t1 + ", " + (double)t1/(double)count );
     }
-
-    @Rule
-    public final TargetDirectory.TestDirectory testDirectory = TargetDirectory.testDirForTest( getClass() );
 }