Hi,
I have a question connected to *Cyclomatic Complexity*. According the
documentation the "Cyclomatic Complexity is the minimum number of paths
that can, in (linear) combination, generate all possible paths through a
method". There is also a calculation for it v(G) = B - D + 1, but was not
sure in my case.
I have simple method what I want to test:
public int increase(int i) {
if (i > 1) {
i = i+ 1;
}
if (i > 10) {
i = i+ 1;
}
return i;
}
And my test is very simple, I don't do any assertions, just call it with
two different numbers:
@Test
void test() {
increase(100);
increase(-10);
}
I used the following coverage limit:
<limit>
<counter>COMPLEXITY</counter>
<value>COVEREDRATIO</value>
<minimum>1.00</minimum>
</limit>
So I had the assumption that the coverage report should fail, as I didn't
test (call) the method with a number which is 1 < n < 10, but to my
surprise the coverage failed.
Do you know why it is passed in my case?
My simplified pom.xml file just in case:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.kanbagoly</groupId>
<artifactId>something</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<junit.jupiter.version>5.5.2</junit.jupiter.version>
</properties>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.4</version>
<executions>
<execution>
<id>prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<rules>
<rule>
<element>BUNDLE</element>
<limits>
<limit>
<counter>COMPLEXITY</counter>
<value>COVEREDRATIO</value>
<minimum>1.00</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Thank you for your answer in advance,
Csaba Kerti
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