Add support for mocking put endpoints

[heshanpadmasiri]

Problem

Currently we can mock GET endpoints but not PUT endpoints (not sure about other kinds like POST). We need to be able to mock PUT endpoints (and others if they are not supported).

Proposed Solution

We need to be able to do

<mock-service>
    <service-name>CreateRecordEndPoint</service-name>
    <port>9090</port>
    <context>/mock</context>
    <resources>
        <resource>
            <sub-context>/create/?updateMode=M&amp;entPriority=P</sub-context>
            <method>PUT</method>
            <response>
                <status-code>200</status-code>
                <headers>
                    <header name="Content-Type" value="application/json" />
                </headers>
                <payload>
                    <![CDATA[{"working": true}]]>
                </payload>
            </response>
        </resource>
    </resources>
</mock-service>

Alternatives

No response

Version

No response

[SanojPunchihewa]

As per the mock service creator[1] we haven't considered the PUT method. We may need to check the feasibility and add support for PUT method.

[1] - https://github.com/wso2/wso2-synapse/blob/master/modules/core/src/main/java/org/apache/synapse/unittest/MockServiceCreator.java#L129