#985 - IllegalArgumentException when using @DbArray of type List<String> with @ChangeLog

src/test/java/io/ebeaninternal/server/text/json/DJsonScalarTest.java

@@ -0,0 +1,82 @@
+package io.ebeaninternal.server.text.json;
+
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.core.JsonGenerator;
+import io.ebean.config.ServerConfig;
+import io.ebean.config.dbplatform.DatabasePlatform;
+import io.ebean.config.dbplatform.h2.H2Platform;
+import io.ebeaninternal.server.core.bootup.BootupClasses;
+import io.ebeaninternal.server.type.DefaultTypeManager;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class DJsonScalarTest {
+
+  private final DJsonScalar jsonScalar;
+
+  public DJsonScalarTest() {
+
+    ServerConfig serverConfig = new ServerConfig();
+    serverConfig.setDatabasePlatform(new H2Platform());
+    DefaultTypeManager typeManager = new DefaultTypeManager(serverConfig, new BootupClasses());
+    jsonScalar = new DJsonScalar(typeManager);
+  }
+
+  @Test
+  public void writeBasicTypes() throws IOException {
+
+    StringWriter writer = new StringWriter();
+    JsonGenerator generator = createGenerator(writer);
+
+    UUID uuid = UUID.randomUUID();
+    LocalDate today = LocalDate.now();
+
+    generator.writeRaw("[");
+    jsonScalar.write(generator, "hello");
+    generator.writeRaw(",");
+    jsonScalar.write(generator, uuid);
+    generator.writeRaw(",");
+    jsonScalar.write(generator, today);
+    generator.writeRaw("]");
+
+    generator.flush();
+    generator.close();
+
+    String json = writer.toString();
+    assertThat(json).contains("hello");
+    assertThat(json).contains(uuid.toString());
+  }
+
+  private JsonGenerator createGenerator(StringWriter writer) throws IOException {
+    JsonFactory factory = new JsonFactory();
+    return factory.createGenerator(writer);
+  }
+
+  @Test
+  public void writeDbArrayTypes() throws IOException {
+
+    StringWriter writer = new StringWriter();
+    JsonGenerator generator = createGenerator(writer);
+
+    List<UUID> list = new ArrayList<>();
+    list.add(UUID.randomUUID());
+    list.add(UUID.randomUUID());
+
+    jsonScalar.write(generator, list);
+
+    generator.flush();
+    generator.close();
+
+    String json = writer.toString();
+    assertThat(json).isEqualTo("[\""+list.get(0)+"\", \""+list.get(1)+"\"]");
+  }
+
+}