Improve JMeter Template : Fix Issue 7773 (#7774)

* Improve JMeter Template:
In CSV DataSet ignore first line as it contains headers
Share CSV for Thread-Group instead of doing it across all threads
Use scheduler
Add variables definable through properties for:
- Rampup
- Duration
- Threads
Drop HttpClient 3.1 customization
Remove in Test Plan Element host and port as they are defined in User
Variables

* Improve JMeter Template : Fix Issue 7773
This comment #7773
As per request update samples

Author: pmouawad

modules/swagger-codegen/src/main/resources/JMeter/api.mustache

@@ -6,24 +6,28 @@
       <boolProp name="TestPlan.functional_mode">false</boolProp>
       <boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
       <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
-        <collectionProp name="Arguments.arguments">
-          <elementProp name="host" elementType="Argument">
-            <stringProp name="Argument.name">host</stringProp>
-            <stringProp name="Argument.value">localhost</stringProp>
-            <stringProp name="Argument.metadata">=</stringProp>
-          </elementProp>
-          <elementProp name="port" elementType="Argument">
-            <stringProp name="Argument.name">port</stringProp>
-            <stringProp name="Argument.value">8080</stringProp>
-            <stringProp name="Argument.metadata">=</stringProp>
-          </elementProp>
-        </collectionProp>
+        <collectionProp name="Arguments.arguments"/>
       </elementProp>
       <stringProp name="TestPlan.user_define_classpath"></stringProp>
     </TestPlan>
     <hashTree>
       <Arguments guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
         <collectionProp name="Arguments.arguments">
+          <elementProp name="threads" elementType="Argument">
+            <stringProp name="Argument.name">threads</stringProp>
+            <stringProp name="Argument.value">${__P(threads,1)}</stringProp>
+            <stringProp name="Argument.metadata">=</stringProp>
+          </elementProp>
+          <elementProp name="rampup" elementType="Argument">
+            <stringProp name="Argument.name">rampup</stringProp>
+            <stringProp name="Argument.value">${__P(rampup,1)}</stringProp>
+            <stringProp name="Argument.metadata">=</stringProp>
+          </elementProp>
+          <elementProp name="duration" elementType="Argument">
+            <stringProp name="Argument.name">duration</stringProp>
+            <stringProp name="Argument.value">${__P(duration,1)}</stringProp>
+            <stringProp name="Argument.metadata">=</stringProp>
+          </elementProp>
           <elementProp name="testCases" elementType="Argument">
             <stringProp name="Argument.name">testCases</stringProp>
             <stringProp name="Argument.value">${__P(testCases,10)}</stringProp>
@@ -67,13 +71,13 @@
           <boolProp name="LoopController.continue_forever">false</boolProp>
           <stringProp name="LoopController.loops">${testCases}</stringProp>
         </elementProp>
-        <stringProp name="ThreadGroup.num_threads">1</stringProp>
-        <stringProp name="ThreadGroup.ramp_time">1</stringProp>
+        <stringProp name="ThreadGroup.num_threads">${threads}</stringProp>
+        <stringProp name="ThreadGroup.ramp_time">${rampup}</stringProp>
         <longProp name="ThreadGroup.start_time">1448391617000</longProp>
         <longProp name="ThreadGroup.end_time">1448391617000</longProp>
-        <boolProp name="ThreadGroup.scheduler">false</boolProp>
-        <stringProp name="ThreadGroup.duration"></stringProp>
-        <stringProp name="ThreadGroup.delay"></stringProp>
+        <boolProp name="ThreadGroup.scheduler">true</boolProp>
+        <stringProp name="ThreadGroup.duration">${duration}</stringProp>
+        <stringProp name="ThreadGroup.delay">5</stringProp>
       </ThreadGroup>
       <hashTree>
         <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="HTTP Header Manager" enabled="true">
@@ -109,7 +113,7 @@
           <boolProp name="HTTPSampler.auto_redirects">false</boolProp>
           <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
           <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
-          <stringProp name="HTTPSampler.implementation">HttpClient3.1</stringProp>
+          <stringProp name="HTTPSampler.implementation"></stringProp>
           <boolProp name="HTTPSampler.monitor">false</boolProp>
           <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
           <stringProp name="TestPlan.comments">{{summary}} {{notes}}</stringProp>
@@ -121,9 +125,10 @@
             <stringProp name="filename">${testData.{{operationId}}File}</stringProp>
             <boolProp name="quotedData">true</boolProp>
             <boolProp name="recycle">true</boolProp>
-            <stringProp name="shareMode">shareMode.all</stringProp>
+            <stringProp name="shareMode">shareMode.group</stringProp>
             <boolProp name="stopThread">false</boolProp>
             <stringProp name="variableNames"></stringProp>
+            <boolProp name="ignoreFirstLine">true</boolProp>
           </CSVDataSet>
           <hashTree/>
         </hashTree>