Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Fix the version of postgresql used in the test container
  Factor creation of test container out to a common method

Change-Id: I324887b6651714cbc3537ebfdcfac33c22f0b26c
diff --git a/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresModuleTest.java b/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresModuleTest.java
index cb177c2..5df97d0 100644
--- a/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresModuleTest.java
+++ b/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresModuleTest.java
@@ -16,6 +16,7 @@
 
 import static com.ericsson.gerrit.plugins.gcconductor.postgresqueue.TestUtil.configMockFor;
 import static com.ericsson.gerrit.plugins.gcconductor.postgresqueue.TestUtil.invalidConfigMockFor;
+import static com.ericsson.gerrit.plugins.gcconductor.postgresqueue.TestUtil.newContainer;
 import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.mock;
@@ -40,7 +41,7 @@
 
   @BeforeClass
   public static void startPostgres() {
-    container = new PostgreSQLContainer<>();
+    container = newContainer();
     container.start();
   }
 
diff --git a/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresQueueTest.java b/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresQueueTest.java
index 2dc6271..b767d04 100644
--- a/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresQueueTest.java
+++ b/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/PostgresQueueTest.java
@@ -15,6 +15,7 @@
 package com.ericsson.gerrit.plugins.gcconductor.postgresqueue;
 
 import static com.ericsson.gerrit.plugins.gcconductor.postgresqueue.TestUtil.configMockFor;
+import static com.ericsson.gerrit.plugins.gcconductor.postgresqueue.TestUtil.newContainer;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.anyString;
@@ -46,7 +47,7 @@
 
   @BeforeClass
   public static void startPostgres() {
-    container = new PostgreSQLContainer<>();
+    container = newContainer();
     container.start();
   }
 
diff --git a/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/TestUtil.java b/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/TestUtil.java
index a90f0f4..fdecce3 100644
--- a/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/TestUtil.java
+++ b/src/test/java/com/ericsson/gerrit/plugins/gcconductor/postgresqueue/TestUtil.java
@@ -23,6 +23,11 @@
 
 @Ignore
 public class TestUtil {
+  private static final String LABEL = PostgreSQLContainer.IMAGE + ":" + "9.6.12-alpine";
+
+  static PostgreSQLContainer<?> newContainer() {
+    return new PostgreSQLContainer<>(LABEL);
+  }
 
   static EvaluatorConfig configMockFor(PostgreSQLContainer<?> container) {
     EvaluatorConfig configMock = mock(EvaluatorConfig.class);