Re-instate main gradle build configuration removed by exfalso.

build.gradle

@@ -162,6 +162,33 @@ allprojects {
     tasks.withType(Test) {
         // Prevent the project from creating temporary files outside of the build directory.
         systemProperties['java.io.tmpdir'] = buildDir
+
+        // Ensures that "net.corda.testing.amqp.enable" is passed correctly from Gradle command line
+        // down to JVM executing unit test. It looks like we are running unit tests in the forked mode
+        // and all the "-D" parameters passed to Gradle not making it to unit test level
+        // TODO: Remove once we fully switched to AMQP
+        final AMQP_ENABLE_PROP_NAME = "net.corda.testing.amqp.enable"
+        systemProperty(AMQP_ENABLE_PROP_NAME, System.getProperty(AMQP_ENABLE_PROP_NAME))
+
+         // relational database provider to be used by node
+        final DATABASE_PROVIDER = "databaseProvider"
+        final DATASOURCE_URL = "dataSourceProperties.dataSource.url"
+        final DATASOURCE_CLASSNAME = "dataSourceProperties.dataSourceClassName"
+        final DATASOURCE_USER = "dataSourceProperties.dataSource.user"
+        final DATASOURCE_PASSWORD = "dataSourceProperties.dataSource.password"
+
+        // integration testing database configuration (to be used in conjunction with a DATABASE_PROVIDER)
+        final TEST_DB_ADMIN_USER = "test.db.admin.user"
+        final TEST_DB_ADMIN_PASSWORD = "test.db.admin.password"
+        final TEST_DB_SCRIPT_DIR = "test.db.script.dir"
+
+        [DATABASE_PROVIDER,DATASOURCE_URL, DATASOURCE_CLASSNAME, DATASOURCE_USER, DATASOURCE_PASSWORD,
+          TEST_DB_ADMIN_USER, TEST_DB_ADMIN_PASSWORD, TEST_DB_SCRIPT_DIR].forEach {
+            def property = System.getProperty(it)
+            if (property != null) {
+                systemProperty(it, property)
+            }
+        }
     }
 
     group 'com.r3.corda.enterprise'