fix: return mapped port from MariaDBContainer.getLivenessCheckPortNumbers

MariaDBContainer.getLivenessCheckPortNumbers() returned the hardcoded
internal port (3306) instead of the mapped external port. This was
originally fixed for other containers in a prior PR but MariaDB was
missed. The new MariaDBContainer class then copied the same buggy
implementation.

Delegate to super.getLivenessCheckPortNumbers() which correctly maps
internal ports to external mapped ports via getMappedPort().

Applied to both:
- org.testcontainers.mariadb.MariaDBContainer (current)
- org.testcontainers.containers.MariaDBContainer (deprecated)

Author: PreAgile

modules/mariadb/src/main/java/org/testcontainers/containers/MariaDBContainer.java

@@ -1,6 +1,5 @@
 package org.testcontainers.containers;
 
-import com.google.common.collect.Sets;
 import org.testcontainers.images.builder.Transferable;
 import org.testcontainers.utility.DockerImageName;
 
@@ -57,7 +56,7 @@ public MariaDBContainer(final DockerImageName dockerImageName) {
 
     @Override
     public Set<Integer> getLivenessCheckPortNumbers() {
-        return Sets.newHashSet(MARIADB_PORT);
+        return super.getLivenessCheckPortNumbers();
     }
 
     @Override

modules/mariadb/src/main/java/org/testcontainers/mariadb/MariaDBContainer.java

@@ -1,6 +1,5 @@
 package org.testcontainers.mariadb;
 
-import com.google.common.collect.Sets;
 import org.testcontainers.containers.ContainerLaunchException;
 import org.testcontainers.containers.JdbcDatabaseContainer;
 import org.testcontainers.images.builder.Transferable;
@@ -50,7 +49,7 @@ public MariaDBContainer(final DockerImageName dockerImageName) {
 
     @Override
     public Set<Integer> getLivenessCheckPortNumbers() {
-        return Sets.newHashSet(MARIADB_PORT);
+        return super.getLivenessCheckPortNumbers();
     }
 
     @Override

modules/mariadb/src/test/java/org/testcontainers/mariadb/MariaDBContainerTest.java

@@ -33,6 +33,7 @@ void testSimple() throws SQLException {
             int resultSetInt = resultSet.getInt(1);
 
             assertThat(resultSetInt).as("A basic SELECT query succeeds").isEqualTo(1);
+            assertHasCorrectExposedAndLivenessCheckPorts(mariadb);
         }
     }
 
@@ -145,6 +146,12 @@ void testEmptyPasswordWithRootUser() throws SQLException {
         }
     }
 
+    private void assertHasCorrectExposedAndLivenessCheckPorts(MariaDBContainer mariadb) {
+        assertThat(mariadb.getExposedPorts()).containsExactly(MariaDBContainer.MARIADB_PORT);
+        assertThat(mariadb.getLivenessCheckPortNumbers())
+            .containsExactly(mariadb.getMappedPort(MariaDBContainer.MARIADB_PORT));
+    }
+
     private void assertThatCustomIniFileWasUsed(MariaDBContainer mariadb) throws SQLException {
         try (ResultSet resultSet = performQuery(mariadb, "SELECT @@GLOBAL.innodb_max_undo_log_size")) {
             long result = resultSet.getLong(1);