pairwise-testing / java-pairwiser

Pairwise test cases generator in Java

Pairwiser

Library for generate test cases based by pairwise theory

Base theory: All-pairs_testing Base algorithm: barbie.uta.edu

With some modifications

Example

We have system with 10 parameters. As example REST API with input json.

Code example

Map<String, List<Object>> params = new HashMap<>();

for (int i = 0; i < 10; i++) {
	for (int j = 0; j < 10 * Math.random(); j++) {
		params.computeIfAbsent("P" + i, k -> new ArrayList<>()).add("p"+i+"v"+j);
	}
}

PairwiseGenerator<String, Object> gen = new PairwiseGenerator<>(params);
gen.stream().forEach(test -> {
	log.info("Test: {}", test);
});

Type Object used only as example, types of parameters can be any

Maven dependency

<dependency>
  <groupId>com.anyqn.lib</groupId>
  <artifactId>pairwiser</artifactId>
  <version>0.1.21</version>
</dependency>

List of parameters and possible values

• P0=[p0v0, p0v1, p0v2],
• P1=[p1v0, p1v1, p1v2, p1v3],
• P2=[p2v0, p2v1, p2v2, p2v3, p2v4, p2v5],
• P3=[p3v0, p3v1, p3v2],
• P4=[p4v0],
• P5=[p5v0, p5v1, p5v2, p5v3, p5v4, p5v5],
• P6=[p6v0, p6v1, p6v2, p6v3, p6v4],
• P7=[p7v0, p7v1],
• P8=[p8v0, p8v1, p8v2, p8v3, p8v4],
• P9=[p9v0, p9v1, p9v2]

Micro explain

Bruteforce test cases count is 3 * 4 * 6 * 3 * 1 * 6 * 5 * 2 * 5 * 3 = 194400 Pairwise test cases count = 41

This test cases covered test system by rule "All pairs of params need to add at least once to tests"

Final cases:

• [p0v0, p1v0, p2v0, p3v0, p4v0, p5v0, p6v0, p7v0, p8v0, p9v0]
• [p0v1, p1v1, p2v0, p3v1, p4v0, p5v1, p6v1, p7v1, p8v1, p9v1]
• [p0v2, p1v2, p2v0, p3v2, p4v0, p5v2, p6v2, p7v0, p8v2, p9v2]
• [p0v0, p1v3, p2v0, p3v1, p4v0, p5v3, p6v3, p7v1, p8v3, p9v2]
• [p0v1, p1v0, p2v0, p3v2, p4v0, p5v4, p6v4, p7v1, p8v4, p9v1]
• [p0v2, p1v2, p2v0, p3v0, p4v0, p5v5, p6v0, p7v0, p8v1, p9v0]
• [p0v1, p1v3, p2v1, p3v0, p4v0, p5v0, p6v1, p7v0, p8v2, p9v1]
• [p0v0, p1v1, p2v1, p3v2, p4v0, p5v1, p6v2, p7v1, p8v0, p9v0]
• [p0v2, p1v0, p2v1, p3v1, p4v0, p5v2, p6v3, p7v0, p8v4, p9v2]
• [p0v2, p1v2, p2v1, p3v0, p4v0, p5v3, p6v4, p7v1, p8v3, p9v1]
• [p0v0, p1v3, p2v1, p3v2, p4v0, p5v4, p6v0, p7v0, p8v1, p9v2]
• [p0v1, p1v1, p2v1, p3v1, p4v0, p5v5, p6v1, p7v1, p8v0, p9v0]
• [p0v2, p1v1, p2v2, p3v1, p4v0, p5v0, p6v2, p7v0, p8v3, p9v2]
• [p0v1, p1v0, p2v2, p3v0, p4v0, p5v1, p6v3, p7v1, p8v2, p9v0]
• [p0v0, p1v3, p2v2, p3v2, p4v0, p5v2, p6v4, p7v1, p8v4, p9v1]
• [p0v1, p1v2, p2v2, p3v1, p4v0, p5v3, p6v0, p7v0, p8v0, p9v1]
• [p0v2, p1v2, p2v2, p3v2, p4v0, p5v4, p6v1, p7v0, p8v3, p9v0]
• [p0v0, p1v0, p2v2, p3v0, p4v0, p5v5, p6v2, p7v1, p8v1, p9v2]
• [p0v0, p1v1, p2v3, p3v2, p4v0, p5v0, p6v3, p7v1, p8v4, p9v1]
• [p0v2, p1v3, p2v3, p3v1, p4v0, p5v1, p6v4, p7v0, p8v2, p9v2]
• [p0v1, p1v0, p2v3, p3v0, p4v0, p5v2, p6v0, p7v1, p8v3, p9v0]
• [p0v0, p1v2, p2v3, p3v2, p4v0, p5v3, p6v1, p7v0, p8v1, p9v2]
• [p0v2, p1v3, p2v3, p3v0, p4v0, p5v4, p6v2, p7v0, p8v0, p9v1]
• [p0v1, p1v1, p2v3, p3v1, p4v0, p5v5, p6v3, p7v1, p8v2, p9v0]
• [p0v0, p1v2, p2v4, p3v0, p4v0, p5v0, p6v4, p7v0, p8v4, p9v0]
• [p0v1, p1v1, p2v4, p3v1, p4v0, p5v1, p6v0, p7v1, p8v3, p9v2]
• [p0v2, p1v0, p2v4, p3v2, p4v0, p5v2, p6v1, p7v0, p8v0, p9v1]
• [p0v1, p1v3, p2v4, p3v0, p4v0, p5v3, p6v2, p7v1, p8v4, p9v0]
• [p0v0, p1v1, p2v4, p3v1, p4v0, p5v4, p6v3, p7v0, p8v1, p9v1]
• [p0v2, p1v3, p2v4, p3v2, p4v0, p5v5, p6v4, p7v1, p8v2, p9v2]
• [p0v0, p1v0, p2v5, p3v0, p4v0, p5v0, p6v0, p7v0, p8v1, p9v0]
• [p0v1, p1v2, p2v5, p3v1, p4v0, p5v1, p6v1, p7v1, p8v4, p9v1]
• [p0v2, p1v1, p2v5, p3v2, p4v0, p5v2, p6v2, p7v0, p8v0, p9v2]
• [p0v0, p1v0, p2v5, p3v0, p4v0, p5v3, p6v3, p7v1, p8v2, p9v0]
• [p0v1, p1v3, p2v5, p3v1, p4v0, p5v4, p6v4, p7v0, p8v3, p9v1]
• [p0v2, p1v2, p2v5, p3v2, p4v0, p5v5, p6v0, p7v1, p8v4, p9v2]
• [p0v0, p1v1, p2v0, p3v0, p4v0, p5v3, p6v4, p7v0, p8v0, p9v0]
• [p0v1, p1v0, p2v0, p3v1, p4v0, p5v2, p6v4, p7v1, p8v1, p9v1]
• [p0v2, p1v2, p2v0, p3v2, p4v0, p5v0, p6v3, p7v0, p8v0, p9v2]
• [p0v0, p1v3, p2v0, p3v0, p4v0, p5v4, p6v0, p7v1, p8v2, p9v0]
• [p0v1, p1v0, p2v0, p3v1, p4v0, p5v5, p6v0, p7v0, p8v3, p9v1]

Release instruction

mvn release:clean release:prepare mvn release:perform

Important rule:

in pom.xml need to add gpg, javadoc and source maven plugins to release profile, because without this step release plugin do not execute this plugins.

License

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/