From 86b4026bcfaed73eda1a435f76c23e0c23e95307 Mon Sep 17 00:00:00 2001
From: Paul-Christian Volkmer
Date: Wed, 11 Nov 2026 15:13:46 +0100
Subject: feat: initial support for data(base) migration infrastructure

---
 .../migration/DatabaseMigrationServiceTest.java    | 113 +++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 src/test/java/dev/dnpm/oshelper/migration/DatabaseMigrationServiceTest.java

(limited to 'src/test/java/dev')

diff --git a/src/test/java/dev/dnpm/oshelper/migration/DatabaseMigrationServiceTest.java b/src/test/java/dev/dnpm/oshelper/migration/DatabaseMigrationServiceTest.java
new file mode 100644
index 0000000..9c22c8d
--- /dev/null
+++ b/src/test/java/dev/dnpm/oshelper/migration/DatabaseMigrationServiceTest.java
@@ -0,0 +1,113 @@
+/*
+ * This file is part of DNPMHelper
+ *
+ * Copyright (C) 2023-2026 the original author or authors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package dev.dnpm.oshelper.migration;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import java.util.List;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.core.io.support.ResourcePatternResolver;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+@ExtendWith(MockitoExtension.class)
+class DatabaseMigrationServiceTest {
+
+  JdbcTemplate jdbcTemplate;
+  ResourcePatternResolver resourcePatternResolver;
+
+  DatabaseMigrationService databaseMigration;
+
+  @BeforeEach
+  void setUp(
+      @Mock JdbcTemplate jdbcTemplate, @Mock ResourcePatternResolver resourcePatternResolver) {
+    this.jdbcTemplate = jdbcTemplate;
+    this.resourcePatternResolver = resourcePatternResolver;
+
+    databaseMigration = new DatabaseMigrationService(jdbcTemplate, resourcePatternResolver);
+  }
+
+  @Test
+  void shouldGetNewMigrationFiles() throws Exception {
+    try (MockedStatic<MigrationUtils> databaseUtils = Mockito.mockStatic(MigrationUtils.class)) {
+      databaseUtils
+          .when(
+              () -> MigrationUtils.getDatabaseMigrationScripts(any(ResourcePatternResolver.class)))
+          .thenReturn(List.of("updatednpm_001.sql", "updatednpm_002.sql", "updatednpm_003.sql"));
+
+      databaseUtils
+          .when(() -> MigrationUtils.getExecutedDatabaseMigrations(any(JdbcTemplate.class)))
+          .thenReturn(List.of("updatednpm_001.sql", "updatednpm_002.sql"));
+
+      var actual = databaseMigration.getNewMigrationIds();
+      assertThat(actual).containsExactly("updatednpm_003.sql");
+    }
+  }
+
+  @Test
+  void shouldIgnoreOldMigrationFiles() throws Exception {
+    try (MockedStatic<MigrationUtils> databaseUtils = Mockito.mockStatic(MigrationUtils.class)) {
+      databaseUtils
+          .when(
+              () -> MigrationUtils.getDatabaseMigrationScripts(any(ResourcePatternResolver.class)))
+          .thenReturn(List.of("updatednpm_001.sql", "updatednpm_002.sql"));
+
+      databaseUtils
+          .when(() -> MigrationUtils.getExecutedDatabaseMigrations(any(JdbcTemplate.class)))
+          .thenReturn(List.of("updatednpm_001.sql", "updatednpm_002.sql"));
+
+      var actual = databaseMigration.getNewMigrationIds();
+      assertThat(actual).isEmpty();
+    }
+  }
+
+  @Test
+  void shouldExecuteMigrationFile() throws Exception {
+    try (MockedStatic<MigrationUtils> databaseUtils = Mockito.mockStatic(MigrationUtils.class)) {
+      databaseUtils
+          .when(
+              () -> MigrationUtils.getDatabaseMigrationScripts(any(ResourcePatternResolver.class)))
+          .thenReturn(List.of("updatednpm_001.sql", "updatednpm_002.sql"));
+
+      databaseUtils
+          .when(() -> MigrationUtils.getExecutedDatabaseMigrations(any(JdbcTemplate.class)))
+          .thenReturn(List.of("updatednpm_001.sql"));
+
+      databaseUtils
+          .when(() -> MigrationUtils.getSqlQuery(any(ResourcePatternResolver.class), anyString()))
+          .thenReturn("UPDATE TABLE test;");
+
+      databaseMigration.migrate();
+
+      var argumentCaptor = ArgumentCaptor.forClass(String.class);
+      verify(jdbcTemplate, times(1)).execute(argumentCaptor.capture());
+      assertThat(argumentCaptor.getValue()).isEqualTo("UPDATE TABLE test;");
+    }
+  }
+}
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