Question

有一个流将调用http-outbound endpoint。如果http不可用，我想为场景编写测试用例（捕获流中的异常并按预期从POSTMAN工作）。我尝试使用抛出异常来模拟在消息进程为http：request时抛出的异常但它没有用。有人可以帮助如何在munit中模拟异常吗？

以下是我尝试过的代码：

    <munit:test name="test-project-test-suite-munit-testFlowTest3" description="Test" >
    <mock:when messageProcessor="mule:set-payload" doc:name="Mock">
        <mock:with-attributes>
            <mock:with-attribute name="doc:name" whereValue="#['Set Payload']"/>
        </mock:with-attributes>
        <mock:then-return payload="#['payload3']"/>
    </mock:when>
    <mock:when messageProcessor="mule:flow" doc:name="Mock">
        <mock:with-attributes>
            <mock:with-attribute name="name" whereValue="#[matchContains('munit-testFlow2')]"/>
        </mock:with-attributes>
        <mock:then-return payload="#[]">
            <mock:invocation-properties>
                <mock:invocation-property key="variable2" value="#['response2']"/>
            </mock:invocation-properties>
        </mock:then-return>
    </mock:when>
    <mock:throw-an exception-ref="#[new org.mule.api.MessagingException()]" whenCalling="http:request" doc:name="Throw an Exception">
        <mock:with-attributes>
            <mock:with-attribute name="doc:name" whereValue="#['HTTP-RES']"/>
        </mock:with-attributes>
    </mock:throw-an>
    <flow-ref name="munit-testFlow" doc:name="munit-testFlow"/>
    <munit:assert-payload-equals message="oops failed" expectedValue="#['error-response']" doc:name="Assert Payload"/>
 </munit:test>

Answer 1

而不是像new org.mule.api.MessagingException()那样使用

new IllegalArgumentException('messaging exception')或

new java.lang.Exception("messaging exception")

org.mule.api.MessagingException()是一个受保护的函数，可能无法以可能的方式使用。实际上它位于org.mule.api.MuleException()之下，又是protected。

https://www.mulesoft.org/docs/site/3.3.0/apidocs/org/mule/api/MessagingException.html

请参阅以下网址了解详情。

https://forums.mulesoft.com/questions/44929/munit-throw-exception-mock-not-working.html

工作代码

<munit:test name="sample-test-suite-sampleFlowTest" description="Test">
    <mock:throw-an exception-ref="#[new java.lang.Exception('messaging exception')]" whenCalling="http:request" doc:name="Throw an Exception">
    </mock:throw-an>
    <flow-ref name="sampleFlow" doc:name="sampleFlow"/>
    <logger level="INFO" doc:name="Logger"/>
</munit:test>

如何在munit中编写负面场景（异常场景）的测试用例..？

1 个答案: