olabusayoT commented on a change in pull request #334: Add a special unparser
for empty choice branches
URL: https://github.com/apache/incubator-daffodil/pull/334#discussion_r395802607
##########
File path:
daffodil-test/src/test/resources/org/apache/daffodil/section15/choice_groups/choice-unparse2.tdml
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@@ -216,4 +216,35 @@
</tdml:infoset>
</tdml:unparserTestCase>
+ <tdml:defineSchema name="c3" elementFormDefault="unqualified">
+
+ <xs:include
schemaLocation="org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd"/>
+ <dfdl:format ref="ex:GeneralFormat" lengthKind="delimited"/>
+
+ <xs:element name="choice" dfdl:terminator=";">
+ <xs:complexType>
+ <xs:choice>
+ <xs:sequence>
+ <xs:annotation>
+ <xs:appinfo source="http://www.ogf.org/dfdl/";>
+ <dfdl:assert>{ fn:true() eq fn:true() }</dfdl:assert>
+ </xs:appinfo>
+ </xs:annotation>
+ </xs:sequence>
+ <xs:element name="impossible" type="xs:int" />
+ </xs:choice>
+ </xs:complexType>
+ </xs:element>
+
+ </tdml:defineSchema>
+
+ <tdml:unparserTestCase name="choice_default_branch_is_empty" model="c3"
root="choice">
+ <tdml:document>;</tdml:document>
+ <tdml:infoset>
+ <tdml:dfdlInfoset>
+ <ex:choice />
+ </tdml:dfdlInfoset>
+ </tdml:infoset>
Review comment:
Should this be switched to match the convention of input then output?
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