[DS-2397] Run 2 integration tests; fix problems uncovered thereby.

This makes Failsafe run conditional on maven.test.skip, ensures that
the test environment is unpacked for that phase, and configures
Failsafe as Surefire is.  Two *Test.java classes were renamed IT*.java
so that Failsafe would run them and Surefire wouldn't.

dspace-api/src/test/java/org/dspace/content/ITMetadata.java

@@ -0,0 +1,141 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.content;
+
+import java.io.IOException;
+import org.databene.contiperf.Required;
+import org.databene.contiperf.PerfTest;
+import java.sql.SQLException;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+import org.dspace.AbstractIntegrationTest;
+import org.dspace.authorize.AuthorizeException;
+import org.dspace.content.factory.ContentServiceFactory;
+import org.dspace.content.service.*;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assert.*;
+import static org.hamcrest.CoreMatchers.*;
+
+/**
+ * This is an integration test to validate the metadata classes
+ * @author pvillega
+ */
+public class ITMetadata  extends AbstractIntegrationTest
+{
+    /** log4j category */
+    private static final Logger log = Logger.getLogger(ITMetadata.class);
+
+
+    protected CommunityService communityService = ContentServiceFactory.getInstance().getCommunityService();
+    protected CollectionService collectionService = ContentServiceFactory.getInstance().getCollectionService();
+    protected ItemService itemService = ContentServiceFactory.getInstance().getItemService();
+    protected WorkspaceItemService workspaceItemService = ContentServiceFactory.getInstance().getWorkspaceItemService();
+    protected MetadataSchemaService metadataSchemaService = ContentServiceFactory.getInstance().getMetadataSchemaService();
+    protected MetadataFieldService metadataFieldService = ContentServiceFactory.getInstance().getMetadataFieldService();
+    protected MetadataValueService metadataValueService = ContentServiceFactory.getInstance().getMetadataValueService();
+
+    /**
+     * This method will be run before every test as per @Before. It will
+     * initialize resources required for the tests.
+     *
+     * Other methods can be annotated with @Before here or in subclasses
+     * but no execution order is guaranteed
+     */
+    @Before
+    @Override
+    public void init()
+    {
+        super.init();
+    }
+
+    /**
+     * This method will be run after every test as per @After. It will
+     * clean resources initialized by the @Before methods.
+     *
+     * Other methods can be annotated with @After here or in subclasses
+     * but no execution order is guaranteed
+     */
+    @After
+    @Override
+    public void destroy()
+    {
+        super.destroy();
+    }
+
+    /**
+     * Tests the creation of a new metadata schema with some values
+     */
+    @Test
+    @PerfTest(invocations = 50, threads = 1)
+    @Required(percentile95 = 500, average= 200)
+    public void testCreateSchema() throws SQLException, AuthorizeException, NonUniqueMetadataException, IOException
+    {
+        String schemaName = "integration";
+
+        //we create the structure
+        context.turnOffAuthorisationSystem();
+        Community owningCommunity = communityService.create(null, context);
+        Collection collection = collectionService.create(context, owningCommunity);
+        Item it = workspaceItemService.create(context, collection, false).getItem();
+
+        MetadataSchema schema = metadataSchemaService.create(context, schemaName, "htpp://test/schema/");
+
+        MetadataField field1 = metadataFieldService.create(context, schema, "elem1", "qual1", "note 1");
+
+        MetadataField field2 = metadataFieldService.create(context, schema, "elem2", "qual2", "note 2");
+
+        MetadataValue value1 = metadataValueService.create(context, it, field1);
+        value1.setValue("value1");
+        metadataValueService.update(context, value1);
+
+        MetadataValue value2 = metadataValueService.create(context, it, field2);
+        value2.setValue("value2");
+        metadataValueService.update(context, value2);
+
+
+        //verify it works as expected
+        assertThat("testCreateSchema 0", schema.getName(), equalTo(schemaName));
+        assertThat("testCreateSchema 1", field1.getMetadataSchema(), equalTo(schema));
+        assertThat("testCreateSchema 2", field2.getMetadataSchema(), equalTo(schema));
+
+        List<MetadataField> fields = metadataFieldService.findAllInSchema(context, schema);
+        assertTrue("testCreateSchema 3", fields.size() == 2);
+        boolean exist = true;
+        for(MetadataField f : fields)
+        {
+           if(!f.equals(field1) && !f.equals(field2))
+           {
+               exist = false;
+           }
+        }
+        assertTrue("testCreateSchema 4", exist);
+
+        List<MetadataValue> col1 = metadataValueService.findByField(context, field1);
+        assertTrue("testCreateSchema 5", col1.contains(value1));
+
+        List<MetadataValue> col2 = metadataValueService.findByField(context, field2);
+        assertTrue("testCreateSchema 6", col2.contains(value2));
+
+        //clean database
+        it.removeMetadata(value1);
+        col1 = metadataValueService.findByField(context, field1);
+        assertFalse("testCreateSchema 7", col1.contains(value1));
+
+        it.removeMetadata(value2);
+        metadataFieldService.delete(context, field1);
+        metadataFieldService.delete(context, field2);
+        metadataSchemaService.delete(context, schema);
+
+        context.restoreAuthSystemState();
+    }
+
+}
+