Final try to resolve Travis build errors

Author: Bas-Jan 't Jong

src/PhpWord/Writer/Word2007/Element/Line.php

@@ -41,14 +41,14 @@ public function write()
         $style = $element->getStyle();
         $styleWriter = new LineStyleWriter($xmlWriter, $style);
 
-        $id=$element->getElementIndex();
+        $elementId=$element->getElementIndex();
         if (!$this->withoutP) {
             $xmlWriter->startElement('w:p');
             $styleWriter->writeAlignment();
         }
         $xmlWriter->startElement('w:r');
         $xmlWriter->startElement('w:pict');
-        if ($id==1) {  //shapetype could be defined for each line separately, but then a unique id would be necessary
+        if ($elementId==1) {  //shapetype could be defined for each line separately, but then a unique id would be necessary
             $xmlWriter->startElement('v:shapetype');
             $xmlWriter->writeAttribute('id', '_x0000_t32');
             $xmlWriter->writeAttribute('coordsize', '21600,21600');
@@ -68,7 +68,7 @@ public function write()
             $xmlWriter->endElement(); // v:shapetype
         }
         $xmlWriter->startElement('v:shape');
-        $xmlWriter->writeAttribute('id', sprintf('_x0000_s1%1$03d', $id));
+        $xmlWriter->writeAttribute('id', sprintf('_x0000_s1%1$03d', $elementId));
         $xmlWriter->writeAttribute('type', '#_x0000_t32'); //type should correspond to shapetype id
         $styleWriter->write();
         $styleWriter->writeStroke();

tests/PhpWord/Tests/Style/LineTest.php

@@ -35,7 +35,6 @@ public function testSetGetNormal()
         $object = new Line();
 
         $properties = array(
-            'flip' => true,
             'connectorType' => \PhpOffice\PhpWord\Style\Line::CONNECTOR_TYPE_STRAIGHT,
             'beginArrow' => \PhpOffice\PhpWord\Style\Line::ARROW_STYLE_BLOCK,
             'endArrow' => \PhpOffice\PhpWord\Style\Line::ARROW_STYLE_OVAL,
@@ -59,7 +58,6 @@ public function testSetStyleValue()
         $object = new Line();
 
         $properties = array(
-           'flip' => true,
             'connectorType' => \PhpOffice\PhpWord\Style\Line::CONNECTOR_TYPE_STRAIGHT,
             'beginArrow' => \PhpOffice\PhpWord\Style\Line::ARROW_STYLE_BLOCK,
             'endArrow' => \PhpOffice\PhpWord\Style\Line::ARROW_STYLE_OVAL,
@@ -82,7 +80,7 @@ public function testSetGetFlip()
         $expected=true;
         $object = new Line();
         $object->setFlip($expected);
-        $this->assertEquals($expected, $object->getFlip());
+        $this->assertEquals($expected, $object->isFlip());
     }
 
     /**