How to give System property to my test via Gradle and -D

Question

I have a a Java program which reads a System property

System.getProperty(\"cassandra.ip\");

and I have a Gradle build file that I start wit

Answer 1

Here's a variant that passes numerous project properties to the test JVM as system properties. I prefer project properties over system properties to increase flexibility.

task intTest(type: Test) {
    systemProperties project.properties.subMap(["foo", "bar"])
}

Which may be passed on the command-line:

 $ gradle intTest -Pfoo=1 -Pbar=2

And retrieved in your test:

String foo = System.getProperty("foo");