Java 使用AssertJ在软断言和硬断言之间动态切换

我想向API使用者提供API。此API可用于轻松执行某些测试。我正在使用AssertJ自定义断言来构建这个API。 当API使用者调用或使用我的自定义断言时，我希望他能够轻松配置软断言或硬断言的使用。基于此配置，我想在内部选择

或者使用

Assertions.assertThat(...)

或使用

softlyAssertInstance.assertThat(...)

我不想在所有地方都进行检查，如下所示：

if(softlyAssertInstance != null) {
    softlyAssertInstance.assertThat(...);
} else {
    Assertions.assertThat(...);
}

getAssertor().assertThat(...);

public ReturnType getAssertor() {//Don't know what my return type should be here
    if(softlyAssertInstance != null)
        return softlyAssertInstance;
    else
        return Assertions;
}

public Method getAssertingMethod() {
    if(softlyAssertInstance != null) {
        return softlyAssertInstance.class.getDeclaredMethod("assertThat", {String.class});
    else
        return Assertions.class.getDeclaredMethod("assertThat", {String.class});
}

相反，我更喜欢以下内容：

if(softlyAssertInstance != null) {
    softlyAssertInstance.assertThat(...);
} else {
    Assertions.assertThat(...);
}

getAssertor().assertThat(...);

public ReturnType getAssertor() {//Don't know what my return type should be here
    if(softlyAssertInstance != null)
        return softlyAssertInstance;
    else
        return Assertions;
}

public Method getAssertingMethod() {
    if(softlyAssertInstance != null) {
        return softlyAssertInstance.class.getDeclaredMethod("assertThat", {String.class});
    else
        return Assertions.class.getDeclaredMethod("assertThat", {String.class});
}

这样，我可以在getAssertor中执行if-else检查，如下所示：

if(softlyAssertInstance != null) {
    softlyAssertInstance.assertThat(...);
} else {
    Assertions.assertThat(...);
}

getAssertor().assertThat(...);

public ReturnType getAssertor() {//Don't know what my return type should be here
    if(softlyAssertInstance != null)
        return softlyAssertInstance;
    else
        return Assertions;
}

public Method getAssertingMethod() {
    if(softlyAssertInstance != null) {
        return softlyAssertInstance.class.getDeclaredMethod("assertThat", {String.class});
    else
        return Assertions.class.getDeclaredMethod("assertThat", {String.class});
}

我曾考虑过这个问题，但返回类型对象并没有太大帮助，因为我缩小了可以对返回对象调用的方法的范围。比如说

Object assertor = getAssertor();
assertor.assertThat();//this isn't possible unless I cast it down

我希望这种情况动态发生。我向前看的唯一方法是通过Java反射，在那个里我可能可以返回方法的实例。这可能如下所示：

if(softlyAssertInstance != null) {
    softlyAssertInstance.assertThat(...);
} else {
    Assertions.assertThat(...);
}

getAssertor().assertThat(...);

public ReturnType getAssertor() {//Don't know what my return type should be here
    if(softlyAssertInstance != null)
        return softlyAssertInstance;
    else
        return Assertions;
}

public Method getAssertingMethod() {
    if(softlyAssertInstance != null) {
        return softlyAssertInstance.class.getDeclaredMethod("assertThat", {String.class});
    else
        return Assertions.class.getDeclaredMethod("assertThat", {String.class});
}

我仍然需要根据调用代码动态确定是使用String.class还是Boolean.class。这似乎是一条表演密集型路线，我觉得太复杂了。有什么建议可以帮助我更好地实现我的需求吗？

为什么您希望消费者“轻松配置软断言或硬断言的使用”？