Handle CDATA events in the deserializer - this fixes almost all CDATA…

… trivial tests

failures (1):
    trivial::struct_::cdata::byte_buf

Changelog.md

@@ -32,6 +32,7 @@
 - fix: fix internal panic message when parse malformed XML
   ([#344](https://github.com/tafia/quick-xml/issues/344))
 - test: add tests for trivial documents (empty / only comment / `<root>...</root>` -- one tag with content)
+- fix: CDATA was not handled in many cases where it should
 
 ## 0.23.0-alpha3
 

src/de/map.rs

@@ -109,7 +109,7 @@ where
         } else {
             // try getting from events (<key>value</key>)
             match self.de.peek()? {
-                DeEvent::Text(_) => {
+                DeEvent::Text(_) | DeEvent::CData(_) => {
                     self.state = State::InnerValue;
                     // Deserialize `key` from special attribute name which means
                     // that value should be taken from the text content of the

src/de/mod.rs

@@ -597,7 +597,7 @@ where
         V: Visitor<'de>,
     {
         match self.peek()? {
-            DeEvent::Text(t) if t.is_empty() => visitor.visit_none(),
+            DeEvent::Text(t) | DeEvent::CData(t) if t.is_empty() => visitor.visit_none(),
             DeEvent::Eof => visitor.visit_none(),
             _ => visitor.visit_some(self),
         }

src/de/var.rs

@@ -36,6 +36,8 @@ where
         let decoder = self.de.reader.decoder();
         let de = match self.de.peek()? {
             DeEvent::Text(t) => EscapedDeserializer::new(Cow::Borrowed(t), decoder, true),
+            // Escape sequences does not processed inside CDATA section
+            DeEvent::CData(t) => EscapedDeserializer::new(Cow::Borrowed(t), decoder, false),
             DeEvent::Start(e) => EscapedDeserializer::new(Cow::Borrowed(e.name()), decoder, false),
             _ => {
                 return Err(DeError::Unsupported(
@@ -64,7 +66,7 @@ where
     fn unit_variant(self) -> Result<(), DeError> {
         match self.de.next()? {
             DeEvent::Start(e) => self.de.read_to_end(e.name()),
-            DeEvent::Text(_) => Ok(()),
+            DeEvent::Text(_) | DeEvent::CData(_) => Ok(()),
             _ => unreachable!(),
         }
     }