protected void setupExpectations() throws Exception {
storageUtil.expectWriteOperation();
expect(storageUtil.taskStore.unsafeModifyInPlace(taskId2, updatedConfig)).andReturn(false);
expect(storageUtil.taskStore.unsafeModifyInPlace(taskId, updatedConfig)).andReturn(true);
streamMatcher.expectTransaction(
Op.rewriteTask(new RewriteTask(taskId, updatedConfig.newBuilder())))
.andReturn(position);
}
@Override
protected void performMutations(MutableStoreProvider storeProvider) {