ACP2E-1216: Large area customizable option not able to render for print invoice PDF

Author: thiaramus

app/code/Magento/Sales/Test/Unit/Model/Order/Pdf/AbstractTest.php

@@ -114,4 +114,96 @@ public function testInsertTotals()
 
         $this->assertSame($page, $actual);
     }
+
+    /**
+     * Test for the multiline text will be correctly wrapped between multiple pages
+     *
+     * @return void
+     * @throws \ReflectionException
+     */
+    public function testDrawLineBlocks()
+    {
+        // Setup constructor dependencies
+        $paymentData = $this->createMock(Data::class);
+        $string = $this->createMock(StringUtils::class);
+        $scopeConfig = $this->getMockForAbstractClass(ScopeConfigInterface::class);
+        $filesystem = $this->createMock(Filesystem::class);
+        $pdfConfig = $this->createMock(Config::class);
+        $pdfTotalFactory = $this->createMock(Factory::class);
+        $pdfItemsFactory = $this->createMock(ItemsFactory::class);
+        $localeMock = $this->getMockForAbstractClass(TimezoneInterface::class);
+        $translate = $this->getMockForAbstractClass(StateInterface::class);
+        $addressRenderer = $this->createMock(Renderer::class);
+
+        $abstractPdfMock = $this->getMockForAbstractClass(
+            AbstractPdf::class,
+            [
+                $paymentData,
+                $string,
+                $scopeConfig,
+                $filesystem,
+                $pdfConfig,
+                $pdfTotalFactory,
+                $pdfItemsFactory,
+                $localeMock,
+                $translate,
+                $addressRenderer
+            ],
+            '',
+            true,
+            false,
+            true,
+            ['_setFontRegular', '_getPdf']
+        );
+
+        $page = $this->createMock(\Zend_Pdf_Page::class);
+        $zendFont = $this->createMock(\Zend_Pdf_Font::class);
+        $zendPdf = $this->createMock(\Zend_Pdf::class);
+
+        // Make sure that the newPage will be called 3 times to correctly break 200 lines into pages
+        $zendPdf->expects($this->exactly(3))->method('newPage')->willReturn($page);
+
+        $abstractPdfMock->expects($this->once())->method('_setFontRegular')->willReturn($zendFont);
+        $abstractPdfMock->expects($this->any())->method('_getPdf')->willReturn($zendPdf);
+
+        $reflectionMethod = new \ReflectionMethod(AbstractPdf::class, 'drawLineBlocks');
+
+        $drawBlockLineData = $this->generateMultilineDrawBlock(200);
+        $pageSettings = [
+            'table_header' => true
+        ];
+
+        $reflectionMethod->invoke($abstractPdfMock, $page, $drawBlockLineData, $pageSettings);
+    }
+
+    /**
+     * Generate the array for multiline block
+     *
+     * @param int $numberOfLines
+     * @return array[]
+     */
+    private function generateMultilineDrawBlock(int $numberOfLines): array
+    {
+        $lines = [];
+        for ($x = 0; $x < $numberOfLines; $x++) {
+            $lines [] = $x;
+        }
+
+        $block = [
+            [
+                'lines' =>
+                    [
+                        [
+                            [
+                                'text' => $lines,
+                                'feed' => 40
+                            ]
+                        ]
+                    ],
+                'shift' => 5
+            ]
+        ];
+
+        return $block;
+    }
 }