Support multiple init scripts in JdbcDatabaseContainer

Inspired by PRs: #2578 and #1997
Closes #2232

modules/jdbc/src/main/java/org/testcontainers/containers/JdbcDatabaseContainer.java

@@ -17,7 +17,10 @@
 import java.sql.Driver;
 import java.sql.SQLException;
 import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import java.util.concurrent.Future;
@@ -34,7 +37,7 @@ public abstract class JdbcDatabaseContainer<SELF extends JdbcDatabaseContainer<S
 
     private Driver driver;
 
-    private String initScriptPath;
+    private List<String> initScriptPaths = new ArrayList<>();
 
     protected Map<String, String> parameters = new HashMap<>();
 
@@ -132,8 +135,37 @@ public SELF withConnectTimeoutSeconds(int connectTimeoutSeconds) {
         return self();
     }
 
+    /**
+     * Sets a script for initialization.
+     *
+     * @param initScriptPath path to the script file
+     * @return self
+     */
     public SELF withInitScript(String initScriptPath) {
-        this.initScriptPath = initScriptPath;
+        this.initScriptPaths = new ArrayList<>();
+        this.initScriptPaths.add(initScriptPath);
+        return self();
+    }
+
+    /**
+     * Sets an ordered array of scripts for initialization.
+     *
+     * @param initScriptPaths paths to the script files
+     * @return self
+     */
+    public SELF withInitScripts(String... initScriptPaths) {
+        return withInitScripts(Arrays.asList(initScriptPaths));
+    }
+
+    /**
+     * Sets an ordered collection of scripts for initialization.
+     *
+     * @param initScriptPaths paths to the script files
+     * @return self
+     */
+    public SELF withInitScripts(Iterable<String> initScriptPaths) {
+        this.initScriptPaths = new ArrayList<>();
+        initScriptPaths.forEach(this.initScriptPaths::add);
         return self();
     }
 
@@ -328,9 +360,7 @@ protected void optionallyMapResourceParameterAsVolume(
      * Load init script content and apply it to the database if initScriptPath is set
      */
     protected void runInitScriptIfRequired() {
-        if (initScriptPath != null) {
-            ScriptUtils.runInitScript(getDatabaseDelegate(), initScriptPath);
-        }
+        initScriptPaths.forEach(path -> ScriptUtils.runInitScript(getDatabaseDelegate(), path));
     }
 
     public void setParameters(Map<String, String> parameters) {

modules/postgresql/src/test/java/org/testcontainers/junit/postgresql/SimplePostgreSQLTest.java

@@ -74,6 +74,27 @@ public void testExplicitInitScript() throws SQLException {
         }
     }
 
+    @Test
+    public void testExplicitInitScripts() throws SQLException {
+        try (
+            PostgreSQLContainer<?> postgres = new PostgreSQLContainer<>(PostgreSQLTestImages.POSTGRES_TEST_IMAGE)
+                .withInitScripts("somepath/init_postgresql.sql", "somepath/init_postgresql_2.sql")
+        ) {
+            postgres.start();
+
+            ResultSet resultSet = performQuery(
+                postgres,
+                "SELECT foo AS value FROM bar UNION SELECT bar AS value FROM foo"
+            );
+
+            String columnValue1 = resultSet.getString(1);
+            resultSet.next();
+            String columnValue2 = resultSet.getString(1);
+            assertThat(columnValue1).as("Value from init script 1 should equal real value").isEqualTo("hello world");
+            assertThat(columnValue2).as("Value from init script 2 should equal real value").isEqualTo("hello world 2");
+        }
+    }
+
     @Test
     public void testWithAdditionalUrlParamInJdbcUrl() {
         try (

modules/postgresql/src/test/resources/somepath/init_postgresql_2.sql

@@ -0,0 +1,5 @@
+CREATE TABLE foo (
+  bar VARCHAR(255)
+);
+
+INSERT INTO foo (bar) VALUES ('hello world 2');