baseline coverage for xml parsing.

src/commands/from_xml.rs

@@ -134,3 +134,73 @@ fn from_xml(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStrea
 
     Ok(stream.to_output_stream())
 }
+
+#[cfg(test)]
+mod tests {
+
+    use crate::commands::from_xml;
+    use crate::data::meta::*;
+    use crate::Value;
+    use indexmap::IndexMap;
+
+    fn string(input: impl Into<String>) -> Tagged<Value> {
+        Value::string(input.into()).tagged_unknown()
+    }
+
+    fn row(entries: IndexMap<String, Tagged<Value>>) -> Tagged<Value> {
+        Value::row(entries).tagged_unknown()
+    }
+
+    fn table(list: &Vec<Tagged<Value>>) -> Tagged<Value> {
+        Value::table(list).tagged_unknown()
+    }
+
+    fn parse(xml: &str) -> Tagged<Value> {
+        from_xml::from_xml_string_to_value(xml.to_string(), Tag::unknown()).unwrap()
+    }
+
+    #[test]
+    fn parses_empty_element() {
+        let source = "<nu></nu>";
+
+        assert_eq!(
+            parse(source),
+            row(indexmap! {
+                "nu".into() => table(&vec![])
+            })
+        );
+    }
+
+    #[test]
+    fn parses_element_with_text() {
+        let source = "<nu>La era de los tres caballeros</nu>";
+
+        assert_eq!(
+            parse(source),
+            row(indexmap! {
+                "nu".into() => table(&vec![string("La era de los tres caballeros")])
+            })
+        );
+    }
+
+    #[test]
+    fn parses_element_with_elements() {
+        let source = "\
+<nu>
+    <dev>Andrés</dev>
+    <dev>Jonathan</dev>
+    <dev>Yehuda</dev>
+</nu>";
+
+        assert_eq!(
+            parse(source),
+            row(indexmap! {
+                "nu".into() => table(&vec![
+                    row(indexmap! {"dev".into() => table(&vec![string("Andrés")])}),
+                    row(indexmap! {"dev".into() => table(&vec![string("Jonathan")])}),
+                    row(indexmap! {"dev".into() => table(&vec![string("Yehuda")])})
+                ])
+            })
+        );
+    }
+}