Add second test to ascertain right field is found

DEVSIX-1357

Author: Benoit Lagae

forms/src/test/java/com/itextpdf/forms/PdfFormFieldTest.java

@@ -136,8 +136,17 @@ public void unicodeFormFieldTest() throws IOException {
         PdfDocument pdfDoc = new PdfDocument(new PdfReader(filename));
         PdfAcroForm form = PdfAcroForm.getAcroForm(pdfDoc, true);
         Map<String, PdfFormField> formFields = form.getFormFields();
-        byte[] result = {(byte) 0xFE,(byte) 0xFF,(byte) 0x5E,(byte) 0x10,(byte) 0x53,(byte) 0xF7,(byte) 0x00,(byte) 0x31}; // 帐号1: account number 1
-        Assert.assertArrayEquals(formFields.keySet().toArray(new String[1])[0].getBytes(), result);
+        String fieldName = "\u5E10\u53F71"; // 帐号1: account number 1
+        Assert.assertEquals(formFields.keySet().toArray(new String[1])[0], fieldName);
+    }
+    
+    @Test
+    public void unicodeFormFieldTest2() throws IOException {
+        String filename = sourceFolder + "unicodeFormFieldFile.pdf";
+        PdfDocument pdfDoc = new PdfDocument(new PdfReader(filename));
+        PdfAcroForm form = PdfAcroForm.getAcroForm(pdfDoc, true);
+        String fieldName = "\u5E10\u53F71"; // 帐号1: account number 1
+        Assert.assertNotNull(form.getField(fieldName));
     }
 
     @Test