*article/front/article-meta/fpage or elocation-id* é obrigatório

packtools/sps/sps.sch

@@ -40,6 +40,10 @@
     <active pattern="article_categories"/>
   </phase>
 
+  <phase id="phase.fpage_or_elocation-id">
+    <active pattern="fpage_or_elocation_id"/>
+  </phase>
+
 
   <!--
    Patterns - sets of rules.
@@ -92,4 +96,12 @@
       </assert>
     </rule>
   </pattern>
+
+  <pattern id="fpage_or_elocation_id">
+    <rule context="article/front/article-meta">
+      <assert test="fpage or elocation-id">
+        Element 'article-meta': Missing elements fpage or elocation-id.
+      </assert>
+    </rule>
+  </pattern>
 </schema>

tests/test_schematron.py

@@ -318,3 +318,83 @@ def test_article_categories_is_absent(self):
 
         self.assertFalse(self._run_validation(sample))
 
+
+class fpage_OR_elocationTests(unittest.TestCase):
+    """Tests for article/front/article-meta/fpage or elocation-id elements.
+    """
+    def _run_validation(self, sample):
+        schematron = isoschematron.Schematron(SCH, phase='phase.fpage_or_elocation-id')
+        return schematron.validate(etree.parse(sample))
+
+    def test_case1(self):
+        """
+        fpage is True
+        elocation-id is True
+        fpage v elocation-id is True
+        """
+        sample = """<article>
+                      <front>
+                        <article-meta>
+                          <fpage>01</fpage>
+                          <elocation-id>E27</elocation-id>
+                        </article-meta>
+                      </front>
+                    </article>
+                 """
+        sample = StringIO(sample)
+
+        self.assertTrue(self._run_validation(sample))
+
+    def test_case2(self):
+        """
+        fpage is True
+        elocation-id is False
+        fpage v elocation-id is True
+        """
+        sample = """<article>
+                      <front>
+                        <article-meta>
+                          <fpage>01</fpage>
+                        </article-meta>
+                      </front>
+                    </article>
+                 """
+        sample = StringIO(sample)
+
+        self.assertTrue(self._run_validation(sample))
+
+    def test_case3(self):
+        """
+        fpage is False
+        elocation-id is True
+        fpage v elocation-id is True
+        """
+        sample = """<article>
+                      <front>
+                        <article-meta>
+                          <elocation-id>E27</elocation-id>
+                        </article-meta>
+                      </front>
+                    </article>
+                 """
+        sample = StringIO(sample)
+
+        self.assertTrue(self._run_validation(sample))
+
+    def test_case4(self):
+        """
+        fpage is False
+        elocation-id is False
+        fpage v elocation-id is False
+        """
+        sample = """<article>
+                      <front>
+                        <article-meta>
+                        </article-meta>
+                      </front>
+                    </article>
+                 """
+        sample = StringIO(sample)
+
+        self.assertFalse(self._run_validation(sample))
+