add test case to show delete with version

src/test/java/org/tests/cascade/RelDetail.java

@@ -0,0 +1,44 @@
+package org.tests.cascade;
+
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.Version;
+
+@Entity
+public class RelDetail {
+
+  @Id
+  Long id;
+
+  String name;
+
+  @Version
+  int version;
+
+  @OneToMany(cascade = CascadeType.ALL, mappedBy = "detail")
+  private List<RelMaster> masterRel;
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public List<RelMaster> getMasterRel() {
+    return masterRel;
+  }
+}

src/test/java/org/tests/cascade/RelMaster.java

@@ -0,0 +1,48 @@
+package org.tests.cascade;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+import javax.persistence.Version;
+
+@Entity
+public class RelMaster {
+
+  @Id
+  Long id;
+
+  String name;
+
+  @Version
+  int version;
+
+  @ManyToOne(cascade = CascadeType.REMOVE)
+  private RelDetail detail;
+
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public RelDetail getDetail() {
+    return detail;
+  }
+
+  public void setDetail(RelDetail detail) {
+    this.detail = detail;
+  }
+
+
+}

src/test/java/org/tests/cascade/TestMasterDetailDelete.java

@@ -0,0 +1,83 @@
+package org.tests.cascade;
+
+import io.ebean.BaseTestCase;
+import io.ebean.Transaction;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.List;
+
+import org.junit.Test;
+
+public class TestMasterDetailDelete extends BaseTestCase {
+
+  @Test
+  public void testDeleteOneMasterTxn() {
+    try (Transaction txn = server().beginTransaction()) {
+      RelDetail rd = new RelDetail();
+      rd.setName("test1");
+      server().save(rd);
+
+      RelMaster rm = new RelMaster();
+      rm.setDetail(rd);
+      server().save(rm);
+
+      List<RelDetail> lst = server().find(RelDetail.class).where().eq("name", "test1").findList();
+      assertThat(lst).hasSize(1);
+
+      server().find(RelMaster.class).delete();
+
+      lst = server().find(RelDetail.class).where().eq("name", "test1").findList();
+      assertThat(lst).isEmpty();
+    } // no commit
+  }
+
+
+  @Test
+  public void testDeleteMultiMasterTxn() {
+    try (Transaction txn = server().beginTransaction()) {
+      RelDetail rd = new RelDetail();
+      rd.setName("test2");
+      server().save(rd);
+
+      RelMaster rm1 = new RelMaster();
+      rm1.setDetail(rd);
+      server().save(rm1);
+
+      RelMaster rm2 = new RelMaster();
+      rm2.setDetail(rd);
+      server().save(rm2);
+
+      List<RelDetail> lst = server().find(RelDetail.class).where().eq("name", "test2").findList();
+      assertThat(lst).hasSize(1);
+
+      server().find(RelMaster.class).delete();
+
+      lst = server().find(RelDetail.class).where().eq("name", "test2").findList();
+      assertThat(lst).isEmpty();
+    } // no commit
+  }
+
+  @Test
+  public void testDeleteMultiMasterPlain() {
+    RelDetail rd = new RelDetail();
+    rd.setName("test3");
+    server().save(rd);
+
+    RelMaster rm1 = new RelMaster();
+    rm1.setDetail(rd);
+    server().save(rm1);
+
+    RelMaster rm2 = new RelMaster();
+    rm2.setDetail(rd);
+    server().save(rm2);
+
+    List<RelDetail> lst = server().find(RelDetail.class).where().eq("name", "test3").findList();
+    assertThat(lst).hasSize(1);
+
+    server().find(RelMaster.class).delete();
+
+    lst = server().find(RelDetail.class).where().eq("name", "test3").findList();
+    assertThat(lst).isEmpty();
+  }
+}