JMeter : Run all tests in a file - jmeter

Question

I have around 4 files named:
Test_1.csv
Test_2.csv
...
Each line in each test file has the following format:
method;request
Where, method is the URL that I call and request is the request I make to it. Everything is configured to pick up these values and form URLs.
However, first Test_1.csv must run, then Test_2.csv must run and so on. To do that, I have created 5 thread groups in the following hierarchy:
Test Plan
|
+- Step 1
|
+- HTTP request
+- CSV Data Set Config <- Reads from Test_1.csv
+- Uniform Random Timer
+- Step 2
|
+- HTTP request
+- CSV Data Set Config <- Reads from Test_2.csv
+- Uniform Random Timer
And I have also selected the Run thread groups consecutively option in my test plan. Each thread group is configured for 20 threads. Now, what I want it to do is that, Step 1 should run each and every test in Test_1.csv, then Step 2 should execute and run each and every line in Test_2.csv. However, what is happening is that, Step 1 runs the first 20 lines from Test_1.csv and then Step 2 starts, runs 20 tests and continues. Then, after all steps are done, Step 1 runs again and runs the very same 20 lines from Test1.csv. I want it to just run once, loop through all the lines in the test file and then quit and hand over control to the next thread.
How do I go about this?

Answer 1

Try to use the following schema:
Test Plan
Thread Group #1
Number of Threads: N
. . .
While Controller
Condition: ${__javaScript("${request}"!="<EOF>",)} - until the EOF
CSV Data Set Config
Filename: [path to your file with test-data] - Test_1.csv in this case
Variable Names: method,request
HTTP Request
Uniform Random Timer
. . .
Thread Group #2
. . .
[same for Test_2.csv]
Thread Group #3
. . .
[same for Test_3.csv]

Answer 2

jMeter Plugins' ParameterizedController can help you call parts of your test plan like you call functions in a regular programming language. More importantly, you can parametrise those calls with variables.