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新人プログラマ応援 - みんなで新人を育てよう！
@kanata564

JMeterのテストを生成AIで編集する

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概要

JMeterのテストはUI上からは、範囲指定してコピーができないため、テストの設定などを生成AIにテキストとして渡すのが困難である。
今回はJMeterがテストとして読み込むファイルを特定し、そのファイルを生成AIで編集する。

JMXファイル

JMeterはテストの設定をJMXファイル(.jmx)で管理している。
[File]→[Open]でJMeterが読み込むファイルを指定できる。
image.png
自分の環境では、bin下のフォルダにある。
image.png

JMXファイルの例

UI上のテスト

image.png

JMXファイルの中身

image.png

JMXファイルの編集

前回のテストをベースにランダムな足し算をするように編集させてみる。

手順

  1. 既存のJMXファイルをメモ帳などで開く
  2. JMXファイルの中身をコピーして生成AIに張り付けて、編集内容を指示する（JMXファイル全体をコピペできる形で出力してもらうほうが望ましい）
  3. メモ帳などに張り付けてJMXファイルとして保存する
  4. JMeterで保存したファイルを読み込む

編集後テスト結果

違う引数が呼び出されている
image.png
image.png

(参考)編集前JMXファイル

これを読み込めば、前回のテストを再現できる。

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.6.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan">
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
    </TestPlan>
    <hashTree>
      <SetupThreadGroup guiclass="SetupThreadGroupGui" testclass="SetupThreadGroup" testname="setUp Thread Group">
        <intProp name="ThreadGroup.num_threads">1</intProp>
        <intProp name="ThreadGroup.ramp_time">1</intProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <stringProp name="LoopController.loops">1</stringProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
      </SetupThreadGroup>
      <hashTree>
        <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="MCP Header">
          <collectionProp name="HeaderManager.headers">
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Accept</stringProp>
              <stringProp name="Header.value">application/json, text/event-stream</stringProp>
            </elementProp>
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Content-Type</stringProp>
              <stringProp name="Header.value">application/json</stringProp>
            </elementProp>
          </collectionProp>
        </HeaderManager>
        <hashTree/>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="HTTP Ini">
          <stringProp name="HTTPSampler.domain">localhost</stringProp>
          <stringProp name="HTTPSampler.port">8080</stringProp>
          <stringProp name="HTTPSampler.protocol">http</stringProp>
          <stringProp name="HTTPSampler.path">mcp</stringProp>
          <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
          <stringProp name="HTTPSampler.method">POST</stringProp>
          <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
          <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
          <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
            <collectionProp name="Arguments.arguments">
              <elementProp name="" elementType="HTTPArgument">
                <boolProp name="HTTPArgument.always_encode">false</boolProp>
                <stringProp name="Argument.value">{&#xd;
	&quot;jsonrpc&quot;: &quot;2.0&quot;,&#xd;
	&quot;id&quot;: 1,&#xd;
	&quot;method&quot;: &quot;initialize&quot;,&#xd;
	&quot;params&quot;: {&#xd;
		&quot;protocolVersion&quot;: &quot;2025-11-25&quot;,&#xd;
		&quot;capabilities&quot;: {},&#xd;
		&quot;clientInfo&quot;: {&#xd;
			&quot;name&quot;: &quot;jmeter&quot;,&#xd;
			&quot;version&quot;: &quot;1.0&quot;&#xd;
		}&#xd;
	}&#xd;
}&#xd;
</stringProp>
                <stringProp name="Argument.metadata">=</stringProp>
              </elementProp>
            </collectionProp>
          </elementProp>
        </HTTPSamplerProxy>
        <hashTree/>
        <RegexExtractor guiclass="RegexExtractorGui" testclass="RegexExtractor" testname="Regular Expression Extractor">
          <stringProp name="RegexExtractor.useHeaders">true</stringProp>
          <stringProp name="RegexExtractor.refname">session_id</stringProp>
          <stringProp name="RegexExtractor.regex">Mcp-Session-Id:\s*(.+)</stringProp>
          <stringProp name="RegexExtractor.template">$1$</stringProp>
          <stringProp name="RegexExtractor.default"></stringProp>
          <boolProp name="RegexExtractor.default_empty_value">false</boolProp>
          <stringProp name="RegexExtractor.match_number">1</stringProp>
        </RegexExtractor>
        <hashTree/>
        <JSR223PostProcessor guiclass="TestBeanGUI" testclass="JSR223PostProcessor" testname="JSR223 PostProcessor">
          <stringProp name="cacheKey">true</stringProp>
          <stringProp name="filename"></stringProp>
          <stringProp name="parameters"></stringProp>
          <stringProp name="script">props.put(&quot;session_id&quot;, vars.get(&quot;session_id&quot;));</stringProp>
          <stringProp name="scriptLanguage">groovy</stringProp>
        </JSR223PostProcessor>
        <hashTree/>
      </hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Tool Thread Group">
        <intProp name="ThreadGroup.num_threads">10</intProp>
        <intProp name="ThreadGroup.ramp_time">0</intProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <stringProp name="LoopController.loops">2</stringProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
      </ThreadGroup>
      <hashTree>
        <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="MCP Header">
          <collectionProp name="HeaderManager.headers">
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Accept</stringProp>
              <stringProp name="Header.value">application/json, text/event-stream</stringProp>
            </elementProp>
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Content-Type</stringProp>
              <stringProp name="Header.value">application/json</stringProp>
            </elementProp>
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Mcp-Session-Id</stringProp>
              <stringProp name="Header.value">${__P(session_id)}</stringProp>
            </elementProp>
          </collectionProp>
        </HeaderManager>
        <hashTree/>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="MCP Tool Add">
          <stringProp name="HTTPSampler.domain">localhost</stringProp>
          <stringProp name="HTTPSampler.port">8080</stringProp>
          <stringProp name="HTTPSampler.protocol">http</stringProp>
          <stringProp name="HTTPSampler.path">mcp</stringProp>
          <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
          <stringProp name="HTTPSampler.method">POST</stringProp>
          <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
          <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
          <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
            <collectionProp name="Arguments.arguments">
              <elementProp name="" elementType="HTTPArgument">
                <boolProp name="HTTPArgument.always_encode">false</boolProp>
                <stringProp name="Argument.value">{&#xd;
	&quot;jsonrpc&quot;: &quot;2.0&quot;,&#xd;
	&quot;id&quot;: 2,&#xd;
	&quot;method&quot;: &quot;tools/call&quot;,&#xd;
    &quot;params&quot;: {&#xd;
        &quot;name&quot;: &quot;add&quot;,&#xd;
        &quot;arguments&quot;: {&#xd;
            &quot;a&quot;: 22,&#xd;
            &quot;b&quot;: 11&#xd;
        }&#xd;
    }&#xd;
}&#xd;
</stringProp>
                <stringProp name="Argument.metadata">=</stringProp>
              </elementProp>
            </collectionProp>
          </elementProp>
        </HTTPSamplerProxy>
        <hashTree/>
      </hashTree>
      <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
      <ResultCollector guiclass="StatVisualizer" testclass="ResultCollector" testname="Aggregate Report">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

(参考)編集後JMXファイル

これを読み込めば、今回編集したテストを再現できる。

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.6.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan">
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
    </TestPlan>
    <hashTree>
      <SetupThreadGroup guiclass="SetupThreadGroupGui" testclass="SetupThreadGroup" testname="setUp Thread Group">
        <intProp name="ThreadGroup.num_threads">1</intProp>
        <intProp name="ThreadGroup.ramp_time">1</intProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <stringProp name="LoopController.loops">1</stringProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
      </SetupThreadGroup>
      <hashTree>
        <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="MCP Header">
          <collectionProp name="HeaderManager.headers">
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Accept</stringProp>
              <stringProp name="Header.value">application/json, text/event-stream</stringProp>
            </elementProp>
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Content-Type</stringProp>
              <stringProp name="Header.value">application/json</stringProp>
            </elementProp>
          </collectionProp>
        </HeaderManager>
        <hashTree/>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="HTTP Ini">
          <stringProp name="HTTPSampler.domain">localhost</stringProp>
          <stringProp name="HTTPSampler.port">8080</stringProp>
          <stringProp name="HTTPSampler.protocol">http</stringProp>
          <stringProp name="HTTPSampler.path">mcp</stringProp>
          <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
          <stringProp name="HTTPSampler.method">POST</stringProp>
          <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
          <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
          <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
            <collectionProp name="Arguments.arguments">
              <elementProp name="" elementType="HTTPArgument">
                <boolProp name="HTTPArgument.always_encode">false</boolProp>
                <stringProp name="Argument.value">{&#xd;
	&quot;jsonrpc&quot;: &quot;2.0&quot;,&#xd;
	&quot;id&quot;: 1,&#xd;
	&quot;method&quot;: &quot;initialize&quot;,&#xd;
	&quot;params&quot;: {&#xd;
		&quot;protocolVersion&quot;: &quot;2025-11-25&quot;,&#xd;
		&quot;capabilities&quot;: {},&#xd;
		&quot;clientInfo&quot;: {&#xd;
			&quot;name&quot;: &quot;jmeter&quot;,&#xd;
			&quot;version&quot;: &quot;1.0&quot;&#xd;
		}&#xd;
	}&#xd;
}&#xd;
</stringProp>
                <stringProp name="Argument.metadata">=</stringProp>
              </elementProp>
            </collectionProp>
          </elementProp>
        </HTTPSamplerProxy>
        <hashTree/>
        <RegexExtractor guiclass="RegexExtractorGui" testclass="RegexExtractor" testname="Regular Expression Extractor">
          <stringProp name="RegexExtractor.useHeaders">true</stringProp>
          <stringProp name="RegexExtractor.refname">session_id</stringProp>
          <stringProp name="RegexExtractor.regex">Mcp-Session-Id:\s*(.+)</stringProp>
          <stringProp name="RegexExtractor.template">$1$</stringProp>
          <stringProp name="RegexExtractor.default"></stringProp>
          <boolProp name="RegexExtractor.default_empty_value">false</boolProp>
          <stringProp name="RegexExtractor.match_number">1</stringProp>
        </RegexExtractor>
        <hashTree/>
        <JSR223PostProcessor guiclass="TestBeanGUI" testclass="JSR223PostProcessor" testname="JSR223 PostProcessor">
          <stringProp name="cacheKey">true</stringProp>
          <stringProp name="script">props.put(&quot;session_id&quot;, vars.get(&quot;session_id&quot;));</stringProp>
          <stringProp name="scriptLanguage">groovy</stringProp>
          <stringProp name="parameters"></stringProp>
          <stringProp name="filename"></stringProp>
        </JSR223PostProcessor>
        <hashTree/>
      </hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Tool Thread Group">
        <intProp name="ThreadGroup.num_threads">10</intProp>
        <intProp name="ThreadGroup.ramp_time">0</intProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <stringProp name="LoopController.loops">2</stringProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
      </ThreadGroup>
      <hashTree>
        <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="MCP Header">
          <collectionProp name="HeaderManager.headers">
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Accept</stringProp>
              <stringProp name="Header.value">application/json, text/event-stream</stringProp>
            </elementProp>
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Content-Type</stringProp>
              <stringProp name="Header.value">application/json</stringProp>
            </elementProp>
            <elementProp name="" elementType="Header">
              <stringProp name="Header.name">Mcp-Session-Id</stringProp>
              <stringProp name="Header.value">${__P(session_id)}</stringProp>
            </elementProp>
          </collectionProp>
        </HeaderManager>
        <hashTree/>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="MCP Tool Add">
          <stringProp name="HTTPSampler.domain">localhost</stringProp>
          <stringProp name="HTTPSampler.port">8080</stringProp>
          <stringProp name="HTTPSampler.protocol">http</stringProp>
          <stringProp name="HTTPSampler.path">mcp</stringProp>
          <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
          <stringProp name="HTTPSampler.method">POST</stringProp>
          <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
          <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
          <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
            <collectionProp name="Arguments.arguments">
              <elementProp name="" elementType="HTTPArgument">
                <boolProp name="HTTPArgument.always_encode">false</boolProp>
                <stringProp name="Argument.value">{&#xd;
	&quot;jsonrpc&quot;: &quot;2.0&quot;,&#xd;
	&quot;id&quot;: 2,&#xd;
	&quot;method&quot;: &quot;tools/call&quot;,&#xd;
	&quot;params&quot;: {&#xd;
		&quot;name&quot;: &quot;add&quot;,&#xd;
		&quot;arguments&quot;: {&#xd;
			&quot;a&quot;: ${__Random(1,100,a_val)},&#xd;
			&quot;b&quot;: ${__Random(1,100,b_val)}&#xd;
		}&#xd;
	}&#xd;
}&#xd;
</stringProp>
                <stringProp name="Argument.metadata">=</stringProp>
              </elementProp>
            </collectionProp>
          </elementProp>
        </HTTPSamplerProxy>
        <hashTree/>
      </hashTree>
      <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
      <ResultCollector guiclass="StatVisualizer" testclass="ResultCollector" testname="Aggregate Report">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
    </hashTree>
  </hashTree>
</jmeterTestPlan>
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