test(config): add tests on Php config

test/integration/default/controls/config_spec.rb

+control 'Php configuration' do
+  title 'should match desired lines'
+
+  def test_debian
+    describe file('/etc/php/5.6/fpm/pool.d/radius-admin.conf') do
+      its('content') { should include '[radius-admin]' }
+      its('content') { should include 'php_admin_value[date.timezone] = Europe/Paris' }
+    end
+
+    describe file('/etc/php/7.3/fpm/pool.d/ldap-admin.conf') do
+      its('content') { should include '[ldap-admin]' }
+      its('content') { should include 'php_admin_value[date.timezone] = Europe/Paris' }
+    end
+
+    describe file('/etc/php/5.6/fpm/php.ini') do
+      its('content') { should include 'date.timezone = Europe/Paris' }
+    end
+
+    describe file('/etc/php/7.3/fpm/php.ini') do
+      its('content') { should include 'date.timezone = Europe/Paris' }
+    end
+  end
+
+  def test_ubuntu
+  end
+
+  def test_redhat
+  end
+
+  def test_suse
+  end
+
+  case os[:family]
+  when 'debian'
+    case os[:name]
+    when 'ubuntu'
+      test_ubuntu
+    when 'debian'
+      test_debian
+    end
+  when 'redhat', 'fedora'
+    test_redhat
+  when 'suse'
+    test_suse
+  end
+end