[users] Add test for jobs-creation

- This tries to avoid the now-fixed situation where a sudoersGroup job
  is not created at all (because of a logic error).
- While here, coding style

src/modules/users/TestGroupInformation.cpp

@@ -36,6 +36,7 @@ private Q_SLOTS:
     void testCreateGroup();
 
     void testSudoGroup();
+    void testJobCreation();
 };
 
 GroupTests::GroupTests() {}
@@ -100,7 +101,8 @@ GroupTests::testCreateGroup()
     QVERIFY( !j.exec() );  // running as regular user this should fail
 }
 
-void GroupTests::testSudoGroup()
+void
+GroupTests::testSudoGroup()
 {
     // Test programmatic changes
     {
@@ -141,6 +143,35 @@ void GroupTests::testSudoGroup()
     }
 }
 
+/** @brief Are all the expected jobs (and no others) created?
+ *
+ * - A sudo job is created only when the sudoers group is set;
+ * - Groups job
+ * - User job
+ * - Password job
+ * - Root password job
+ * - Hostname job are always created.
+ */
+void
+GroupTests::testJobCreation()
+{
+    const int expectedJobs = 5;
+    Config c;
+    QVERIFY( !c.isReady() );
+
+    // Needs some setup
+    c.setFullName( QStringLiteral( "Goodluck Jonathan" ) );
+    c.setLoginName( QStringLiteral( "goodj" ) );
+    QVERIFY( c.isReady() );
+
+    QCOMPARE( c.sudoersGroup(), QString() );
+    QCOMPARE( c.createJobs().count(), expectedJobs );
+
+    c.setSudoersGroup( QStringLiteral( "wheel" ) );
+    QCOMPARE( c.sudoersGroup(), QString( "wheel" ) );
+    QCOMPARE( c.createJobs().count(), expectedJobs + 1 );
+}
+
 
 QTEST_GUILESS_MAIN( GroupTests )