#2284 - ENH: ddl-generator - add optional generation of idx_<platform>.migrations file

ebean-ddl-generator/src/test/java/io/ebeaninternal/dbmigration/DbMigrationGenerateTest.java

@@ -27,20 +27,22 @@ public class DbMigrationGenerateTest {
 
   private static final Logger logger = LoggerFactory.getLogger(DbMigrationGenerateTest.class);
 
-  @Test
-  public void invokeTest() throws IOException {
-    main(null);
+  public static void main(String[] args) throws IOException {
+    run("ebean-ddl-generator/src/test/resources");
   }
 
-  public static void main(String[] args) throws IOException {
+  @Test
+  public void invokeTest() throws IOException {
+    run("src/test/resources");
+  }
 
-    logger.info("start");
+  public static void run(String pathToResources) throws IOException {
+    logger.info("start current directory: " + new File(".").getAbsolutePath());
 
     DefaultDbMigration migration = new DefaultDbMigration();
-
+    migration.setIncludeIndex(true);
     // We use src/test/resources as output directory (so we see in GIT if files will change)
-
-    migration.setPathToResources("src/test/resources");
+    migration.setPathToResources(pathToResources);
     migration.setMigrationPath("db/migration");
     migration.setMigrationPath(null); // use the default for this test
 

ebean-ddl-generator/src/test/java/io/ebeaninternal/dbmigration/IndexMigrationTest.java

@@ -0,0 +1,67 @@
+package io.ebeaninternal.dbmigration;
+
+import io.ebean.config.dbplatform.DatabasePlatform;
+import io.ebean.config.dbplatform.h2.H2Platform;
+import io.ebean.config.dbplatform.postgres.PostgresPlatform;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.Arrays;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class IndexMigrationTest {
+
+  @Test
+  public void index() throws IOException {
+    File topDir = new File("src/test/resources/dbmigration/index");
+    if (!topDir.exists()) {
+      throw new IllegalStateException("Not expected - dir does not exist " + topDir.getAbsolutePath());
+    }
+    DatabasePlatform pg = new PostgresPlatform();
+    IndexMigration indexMigration = new IndexMigration(topDir, pg);
+    indexMigration.generate(true);
+
+
+    File expected = new File(topDir, "idx_postgres.migrations");
+    assertThat(expected).exists();
+
+    final List<String> expectedLines = Arrays.asList(
+      "-965417868,     I__init_1.sql",
+      "907060870,      1.0__hello.sql",
+      "-1938594527,    1.1__foo.sql",
+      "-1960070312,    R__view_1.sql");
+
+    final List<String> lines = Files.readAllLines(expected.toPath(), StandardCharsets.UTF_8);
+    assertThat(lines).containsAll(expectedLines);
+  }
+
+  @Test
+  public void index2_withSubDirectories() throws IOException {
+    File topDir = new File("src/test/resources/dbmigration/index2");
+    if (!topDir.exists()) {
+      throw new IllegalStateException("Not expected - dir does not exist " + topDir.getAbsolutePath());
+    }
+    DatabasePlatform pg = new H2Platform();
+    IndexMigration indexMigration = new IndexMigration(topDir, pg);
+    indexMigration.generate(true);
+
+    File expected = new File(topDir, "idx_h2.migrations");
+    assertThat(expected).exists();
+
+    final List<String> expectedLines = Arrays.asList(
+      "-965417868,     I__init_1.sql",
+      "-390611389,     g1/1.0__a.sql",
+      "1908338681,     g1/1.1__b.sql",
+      "-1776543936,    g2/2.0__a.sql",
+      "253052666,      g2/2.1__2b.sql",
+      "-1960070312,    R__view_1.sql");
+
+    final List<String> lines = Files.readAllLines(expected.toPath(), StandardCharsets.UTF_8);
+    assertThat(lines).containsAll(expectedLines);
+  }
+}

ebean-ddl-generator/src/test/java/io/ebeaninternal/dbmigration/MChecksumTest.java

@@ -0,0 +1,18 @@
+package io.ebeaninternal.dbmigration;
+
+import org.junit.Test;
+
+import java.io.File;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class MChecksumTest {
+
+  @Test
+  public void calculate() {
+    File file = new File("src/test/resources/dbmigration/index/1.0__hello.sql");
+    assertThat(file).exists();
+
+    assertThat(MChecksum.calculate(file)).isEqualTo(907060870);
+  }
+}