public void setGroups(java.util.Collection<GroupResult> groups) {
        if (groups == null) {
            this.groups = null;
            return;
        }

        this.groups = new java.util.ArrayList<GroupResult>(groups);
    }
<p>
Show each group of test results.
</p>

@param groups
       Show each group of test results.
aws-java-sdk-iotdeviceadvisor/src/main/java/com/amazonaws/services/iotdeviceadvisor/model/TestResult.java