Setup - clear ftp server

1- Login to the ftp server and delete any cache files located there

$ ftp localhost
Name: esitest
Password: esitest
ftp> cd esitest/si-blocks
ftp> del <any file that is in this folder>
ftp> bye

Setup - create the template

1. Log in as admin in admin interface (add "/plain_site_admin" to the URL  as plain_site is the default)
2. Click "Design" in top menu
3. Click "Templates" in left menu
4. Click "/node/view/full.tpl" link (4th link below "Most common templates" )
5. Select "plain_site" in drop down
6. Click "Set" button
7. Click "New override" button
8. Enter form data:
 Extension: No extension
 Filename : article
 Class : Article
 View (without children) : checked

9. Click "OK" button
10. Click "Edit" icon for the article template
11. At the bottom if the input field, add the following code:
<br/><br/>
<b>ESI block below : </b><br>
{si-block key="1" ttl="120s"}
This is a esi test: time :  {currentdate()|l10n("time")} <br/>
{/si-block}
 <br/><br/>

Setup - Create the test article

1. Click "Content structure"
2. Click "Create here" button
3. Enter form data:
 Title : test article
 Intro : This is the intro

4. Click "Send for publishing" button
5. Logout

Verify first execution of a template

1. View plain site
2. Verify that you get the following on the page:
 SSI block below :

3. Verify that one file is created on ftp server
4. Verify that the content of this file on the ftp server is  (the time will be your local time):
 This is a esi test: time :  4:44:43 pm <br/>
5. View the source of the page (which is displayed in the browser)
6. Validate the the source has (Filename could be different but should match the name of the file found in #6 above):
 <b>ESI block below : </b><br><esi:include src="var/si-blocks/101920469c97a1ad97530c2f8208b38f.htm" ttl="120s" onerror="continue"/>