将src/test/kotlin中的类作为Cordapp添加到Corda MockNetwork节点

有时，在我们的Cordapp测试代码中，我们需要将其他类（可能是附加流、Corda服务等）作为Cordapp注入。以前在Corda 3.x中，这是可能的。在Corda 4.x中，情况似乎并非如此

例如：

给定kotlin模板，假设测试源中有一个额外的类用于

/**
 * This service is representative of a service we use in our primary project.
 * It contains logic that's very useful from the perspective of our cordapps testing.
 * Historically in Corda 3.x we could load this service into the MockNetwork node's classpath
 * This is no longer the case. The log line in the initialiser is never called.
 */
@CordaService
class TestCordaService(serviceHub: AppServiceHub) : SingletonSerializeAsToken() {
//...
}

在Corda 3.x中，我们可以按如下方式启动网络：

MockNetwork(cordappPackages = listOf("<package names>"))

MockNetwork（cordappPackages=listOf（“”）

---

有没有办法在Corda 4.x中实现这一点。

经过一些实验后，我遇到了类

net.Corda.testing.node.internal.CustomCordapp

我们可以这样使用这个类：

  // we collect the distinct set of paths in the event that we don't add the same cordapp twice
  private val cordapps = listOf(
    TemplateContract::class,
    Initiator::class
// and other key cordapp classes
  ).map { it.packageName }.distinct().map { TestCordapp.findCordapp(it) }

// here we declare a custom cordapp based the entry-point classes in a given test package
  private val customTestCordapp = CustomCordapp(packages = setOf(TestCordaService::class.packageName),
    classes = setOf(TestCordaService::class.java))

  private val network = MockNetwork(MockNetworkParameters(cordappsForAllNodes = cordapps + customTestCordapp))
  // ... 

---

查看此报告以获取示例：

经过一些实验后，我遇到了类

net.corda.testing.node.internal.CustomCordapp

我们可以这样使用这个类：

  // we collect the distinct set of paths in the event that we don't add the same cordapp twice
  private val cordapps = listOf(
    TemplateContract::class,
    Initiator::class
// and other key cordapp classes
  ).map { it.packageName }.distinct().map { TestCordapp.findCordapp(it) }

// here we declare a custom cordapp based the entry-point classes in a given test package
  private val customTestCordapp = CustomCordapp(packages = setOf(TestCordaService::class.packageName),
    classes = setOf(TestCordaService::class.java))

  private val network = MockNetwork(MockNetworkParameters(cordappsForAllNodes = cordapps + customTestCordapp))
  // ... 

有关示例，请参见本回购协议：