Add test support for plugin migration

scm-test/src/main/java/sonia/scm/update/V1PropertyDaoTestUtil.java

@@ -0,0 +1,40 @@
+package sonia.scm.update;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import static java.util.Arrays.stream;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class V1PropertyDaoTestUtil {
+
+  private final V1PropertyDAO propertyDAO = mock(V1PropertyDAO.class);
+
+  public V1PropertyDAO getPropertyDAO() {
+    return propertyDAO;
+  }
+
+  public void mockRepositoryProperties(PropertiesForRepository... mockedPropertiesForRepositories) {
+    Map<String, V1Properties> map = new HashMap<>();
+    stream(mockedPropertiesForRepositories).forEach(p -> map.put(p.repositoryId, p.asProperties()));
+    V1PropertyReader.Instance v1PropertyReader = new MapBasedPropertyReaderInstance(map);
+    when(propertyDAO.getProperties(argThat(argument -> argument instanceof RepositoryV1PropertyReader))).thenReturn(v1PropertyReader);
+  }
+
+  public static class PropertiesForRepository {
+    private final String repositoryId;
+    private final Map<String, String> properties;
+
+    public PropertiesForRepository(String repositoryId, Map<String, String> properties) {
+      this.repositoryId = repositoryId;
+      this.properties = properties;
+    }
+
+    V1Properties asProperties() {
+      return new V1Properties(properties.entrySet().stream().map(e -> new V1Property(e.getKey(), e.getValue())).collect(Collectors.toList()));
+    }
+  }
+}