VIA-537 AS/SB Update jmeter test plan and load generator readme

Author: anoop-surej-nhs

.gitignore

@@ -124,4 +124,8 @@ terraform.tfstate*
 
 # Content validation
 *.temp.json
+
+# Jmeter and Performance Testing
+/performance/performance.logs
+/performance/*.jtl
 /performance/report/

infrastructure/environments/test/load-generator/readme.md

@@ -1,5 +1,27 @@
 # Load generator for performance testing
 
+## Running load generator locally
+
+Install jmeter and jq: `brew install jmeter jq`
+
+```shell
+cd performance
+
+# Run jmeter load test with defaults
+./run-vita-load-test.sh
+
+# Analyse results
+# Take header from one of the logs and merge all logs into one file
+head -n 1 $(ls *.jtl | head -n 1) > performance.logs
+for file in *.jtl; do
+  tail -n +2 "$file" >> performance.logs
+done
+
+# Generate an HTML report
+jmeter -g performance.logs -o report
+open report/index.html
+```
+
 ## Deploying to Test environment
 
 You'll need to have installed [docker](https://www.docker.com/) and the [AWS CLI tools](https://aws.amazon.com/cli/): `brew install docker colima awscli` if necessary.

performance/vita-user-journey.jmx

@@ -146,7 +146,7 @@
           <hashTree/>
           <ResponseAssertion guiclass="AssertionGui" testclass="ResponseAssertion" testname="Response Assertion" enabled="true">
             <collectionProp name="Asserion.test_strings">
-              <stringProp name="-1512529882">href=&quot;/check-and-book-rsv&quot;&gt;Check and book an RSV vaccination&lt;/a&gt;</stringProp>
+              <stringProp name="2070171466">&lt;span class=&quot;nhsuk-header__service-name&quot;&gt;Check and book vaccinations&lt;/span&gt;</stringProp>
             </collectionProp>
             <stringProp name="Assertion.custom_message"></stringProp>
             <stringProp name="Assertion.test_field">Assertion.response_data</stringProp>