Add a test which demonstrates the issue with invalid font size processing.

DEVSIX-2881

Author: ars18wrw

src/test/java/com/itextpdf/html2pdf/css/FontSizeTest.java

@@ -43,6 +43,9 @@ This file is part of the iText (R) project.
 package com.itextpdf.html2pdf.css;
 
 import com.itextpdf.html2pdf.ExtendedHtmlConversionITextTest;
+import com.itextpdf.styledxmlparser.LogMessageConstant;
+import com.itextpdf.test.annotations.LogMessage;
+import com.itextpdf.test.annotations.LogMessages;
 import com.itextpdf.test.annotations.type.IntegrationTest;
 
 import java.io.IOException;
@@ -80,4 +83,11 @@ public void fontAbsoluteKeywords() throws IOException, InterruptedException {
     public void fontRelativeKeywords() throws IOException, InterruptedException {
         convertToPdfAndCompare("fontRelativeKeywords", sourceFolder, destinationFolder);
     }
+
+    @Test
+    // TODO DEVSIX-2881 : Update cmps
+    @LogMessages(messages = @LogMessage(messageTemplate = LogMessageConstant.UNKNOWN_ABSOLUTE_METRIC_LENGTH_PARSED))
+    public void spacesInFontSizeValueTest() throws IOException, InterruptedException {
+        convertToPdfAndCompare("spacesInFontSizeValueTest", sourceFolder, destinationFolder);
+    }
 }

src/test/resources/com/itextpdf/html2pdf/css/FontSizeTest/cmp_spacesInFontSizeValueTest.pdf

@@ -0,0 +1,7 @@
+<p style="">Hello World</p>
+<p style="font-size: 5 px;">Hello World</p>
+<p style="font-size: 5px;">Hello World</p>
+
+<p style="">Hello World</p>
+<p style="font-size: 2 em;">Hello World</p>
+<p style="font-size: 2em;">Hello World</p>